Merge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-nmw

* git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-nmw: (27 commits)
  GFS2: Use DEFINE_SPINLOCK
  GFS2: Fix use-after-free bug on umount (try #2)
  Revert "GFS2: Fix use-after-free bug on umount"
  GFS2: Streamline alloc calculations for writes
  GFS2: Send useful information with uevent messages
  GFS2: Fix use-after-free bug on umount
  GFS2: Remove ancient, unused code
  GFS2: Move four functions from super.c
  GFS2: Fix bug in gfs2_lock_fs_check_clean()
  GFS2: Send some sensible sysfs stuff
  GFS2: Kill two daemons with one patch
  GFS2: Move gfs2_recoverd into recovery.c
  GFS2: Fix "truncate in progress" hang
  GFS2: Clean up & move gfs2_quotad
  GFS2: Add more detail to debugfs glock dumps
  GFS2: Banish struct gfs2_rgrpd_host
  GFS2: Move rg_free from gfs2_rgrpd_host to gfs2_rgrpd
  GFS2: Move rg_igeneration into struct gfs2_rgrpd
  GFS2: Banish struct gfs2_dinode_host
  GFS2: Move i_size from gfs2_dinode_host and rename it to i_disksize
  ...

fs/gfs2/Makefile

 obj-$(CONFIG_GFS2_FS) += gfs2.o
-gfs2-y := acl.o bmap.o daemon.o dir.o eaops.o eattr.o glock.o \
+gfs2-y := acl.o bmap.o dir.o eaops.o eattr.o glock.o \
 	glops.o inode.o log.o lops.o locking.o main.o meta_io.o \
 	mount.o ops_address.o ops_dentry.o ops_export.o ops_file.o \
 	ops_fstype.o ops_inode.o ops_super.o quota.o \

fs/gfs2/acl.c

@@ -91,7 +91,7 @@ static int acl_get(struct gfs2_inode *ip, int access, struct posix_acl **acl,
 	struct gfs2_ea_location el_this;
 	int error;
 
-	if (!ip->i_di.di_eattr)
+	if (!ip->i_eattr)
 		return 0;
 
 	memset(&er, 0, sizeof(struct gfs2_ea_request));

fs/gfs2/bmap.c

@@ -75,9 +75,9 @@ static int gfs2_unstuffer_page(struct gfs2_inode *ip, struct buffer_head *dibh,
 		void *kaddr = kmap(page);
 
 		memcpy(kaddr, dibh->b_data + sizeof(struct gfs2_dinode),
-		       ip->i_di.di_size);
-		memset(kaddr + ip->i_di.di_size, 0,
-		       PAGE_CACHE_SIZE - ip->i_di.di_size);
+		       ip->i_disksize);
+		memset(kaddr + ip->i_disksize, 0,
+		       PAGE_CACHE_SIZE - ip->i_disksize);
 		kunmap(page);
 
 		SetPageUptodate(page);
@@ -132,7 +132,7 @@ int gfs2_unstuff_dinode(struct gfs2_inode *ip, struct page *page)
 	if (error)
 		goto out;
 
-	if (ip->i_di.di_size) {
+	if (ip->i_disksize) {
 		/* Get a free block, fill it with the stuffed data,
 		   and write it out to disk */
 
@@ -159,7 +159,7 @@ int gfs2_unstuff_dinode(struct gfs2_inode *ip, struct page *page)
 	di = (struct gfs2_dinode *)dibh->b_data;
 	gfs2_buffer_clear_tail(dibh, sizeof(struct gfs2_dinode));
 
-	if (ip->i_di.di_size) {
+	if (ip->i_disksize) {
 		*(__be64 *)(di + 1) = cpu_to_be64(block);
 		gfs2_add_inode_blocks(&ip->i_inode, 1);
 		di->di_blocks = cpu_to_be64(gfs2_get_inode_blocks(&ip->i_inode));
@@ -926,7 +926,7 @@ static int do_grow(struct gfs2_inode *ip, u64 size)
 		}
 	}
 
-	ip->i_di.di_size = size;
+	ip->i_disksize = size;
 	ip->i_inode.i_mtime = ip->i_inode.i_ctime = CURRENT_TIME;
 	gfs2_trans_add_bh(ip->i_gl, dibh, 1);
 	gfs2_dinode_out(ip, dibh->b_data);
@@ -1033,7 +1033,7 @@ static int trunc_start(struct gfs2_inode *ip, u64 size)
 		goto out;
 
 	if (gfs2_is_stuffed(ip)) {
-		ip->i_di.di_size = size;
+		ip->i_disksize = size;
 		ip->i_inode.i_mtime = ip->i_inode.i_ctime = CURRENT_TIME;
 		gfs2_trans_add_bh(ip->i_gl, dibh, 1);
 		gfs2_dinode_out(ip, dibh->b_data);
@@ -1045,9 +1045,9 @@ static int trunc_start(struct gfs2_inode *ip, u64 size)
 			error = gfs2_block_truncate_page(ip->i_inode.i_mapping);
 
 		if (!error) {
-			ip->i_di.di_size = size;
+			ip->i_disksize = size;
 			ip->i_inode.i_mtime = ip->i_inode.i_ctime = CURRENT_TIME;
-			ip->i_di.di_flags |= GFS2_DIF_TRUNC_IN_PROG;
+			ip->i_diskflags |= GFS2_DIF_TRUNC_IN_PROG;
 			gfs2_trans_add_bh(ip->i_gl, dibh, 1);
 			gfs2_dinode_out(ip, dibh->b_data);
 		}
@@ -1114,13 +1114,13 @@ static int trunc_end(struct gfs2_inode *ip)
 	if (error)
 		goto out;
 
-	if (!ip->i_di.di_size) {
+	if (!ip->i_disksize) {
 		ip->i_height = 0;
 		ip->i_goal = ip->i_no_addr;
 		gfs2_buffer_clear_tail(dibh, sizeof(struct gfs2_dinode));
 	}
 	ip->i_inode.i_mtime = ip->i_inode.i_ctime = CURRENT_TIME;
-	ip->i_di.di_flags &= ~GFS2_DIF_TRUNC_IN_PROG;
+	ip->i_diskflags &= ~GFS2_DIF_TRUNC_IN_PROG;
 
 	gfs2_trans_add_bh(ip->i_gl, dibh, 1);
 	gfs2_dinode_out(ip, dibh->b_data);
@@ -1205,9 +1205,9 @@ int gfs2_truncatei(struct gfs2_inode *ip, u64 size)
 	if (gfs2_assert_warn(GFS2_SB(&ip->i_inode), S_ISREG(ip->i_inode.i_mode)))
 		return -EINVAL;
 
-	if (size > ip->i_di.di_size)
+	if (size > ip->i_disksize)
 		error = do_grow(ip, size);
-	else if (size < ip->i_di.di_size)
+	else if (size < ip->i_disksize)
 		error = do_shrink(ip, size);
 	else
 		/* update time stamps */
@@ -1219,7 +1219,7 @@ int gfs2_truncatei(struct gfs2_inode *ip, u64 size)
 int gfs2_truncatei_resume(struct gfs2_inode *ip)
 {
 	int error;
-	error = trunc_dealloc(ip, ip->i_di.di_size);
+	error = trunc_dealloc(ip, ip->i_disksize);
 	if (!error)
 		error = trunc_end(ip);
 	return error;
@@ -1230,35 +1230,6 @@ int gfs2_file_dealloc(struct gfs2_inode *ip)
 	return trunc_dealloc(ip, 0);
 }
 
-/**
- * gfs2_write_calc_reserv - calculate number of blocks needed to write to a file
- * @ip: the file
- * @len: the number of bytes to be written to the file
- * @data_blocks: returns the number of data blocks required
- * @ind_blocks: returns the number of indirect blocks required
- *
- */
-
-void gfs2_write_calc_reserv(struct gfs2_inode *ip, unsigned int len,
-			    unsigned int *data_blocks, unsigned int *ind_blocks)
-{
-	struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
-	unsigned int tmp;
-
-	if (gfs2_is_dir(ip)) {
-		*data_blocks = DIV_ROUND_UP(len, sdp->sd_jbsize) + 2;
-		*ind_blocks = 3 * (sdp->sd_max_jheight - 1);
-	} else {
-		*data_blocks = (len >> sdp->sd_sb.sb_bsize_shift) + 3;
-		*ind_blocks = 3 * (sdp->sd_max_height - 1);
-	}
-
-	for (tmp = *data_blocks; tmp > sdp->sd_diptrs;) {
-		tmp = DIV_ROUND_UP(tmp, sdp->sd_inptrs);
-		*ind_blocks += tmp;
-	}
-}
-
 /**
  * gfs2_write_alloc_required - figure out if a write will require an allocation
  * @ip: the file being written to
@@ -1276,6 +1247,7 @@ int gfs2_write_alloc_required(struct gfs2_inode *ip, u64 offset,
 	struct buffer_head bh;
 	unsigned int shift;
 	u64 lblock, lblock_stop, size;
+	u64 end_of_file;
 
 	*alloc_required = 0;
 
@@ -1291,19 +1263,12 @@ int gfs2_write_alloc_required(struct gfs2_inode *ip, u64 offset,
 
 	*alloc_required = 1;
 	shift = sdp->sd_sb.sb_bsize_shift;
-	if (gfs2_is_dir(ip)) {
-		unsigned int bsize = sdp->sd_jbsize;
-		lblock = offset;
-		do_div(lblock, bsize);
-		lblock_stop = offset + len + bsize - 1;
-		do_div(lblock_stop, bsize);
-	} else {
-		u64 end_of_file = (ip->i_di.di_size + sdp->sd_sb.sb_bsize - 1) >> shift;
-		lblock = offset >> shift;
-		lblock_stop = (offset + len + sdp->sd_sb.sb_bsize - 1) >> shift;
-		if (lblock_stop > end_of_file)
-			return 0;
-	}
+	BUG_ON(gfs2_is_dir(ip));
+	end_of_file = (ip->i_disksize + sdp->sd_sb.sb_bsize - 1) >> shift;
+	lblock = offset >> shift;
+	lblock_stop = (offset + len + sdp->sd_sb.sb_bsize - 1) >> shift;
+	if (lblock_stop > end_of_file)
+		return 0;
 
 	size = (lblock_stop - lblock) << shift;
 	do {

fs/gfs2/bmap.h

@@ -10,10 +10,40 @@
 #ifndef __BMAP_DOT_H__
 #define __BMAP_DOT_H__
 
+#include "inode.h"
+
 struct inode;
 struct gfs2_inode;
 struct page;
 
+
+/**
+ * gfs2_write_calc_reserv - calculate number of blocks needed to write to a file
+ * @ip: the file
+ * @len: the number of bytes to be written to the file
+ * @data_blocks: returns the number of data blocks required
+ * @ind_blocks: returns the number of indirect blocks required
+ *
+ */
+
+static inline void gfs2_write_calc_reserv(const struct gfs2_inode *ip,
+					  unsigned int len,
+					  unsigned int *data_blocks,
+					  unsigned int *ind_blocks)
+{
+	const struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
+	unsigned int tmp;
+
+	BUG_ON(gfs2_is_dir(ip));
+	*data_blocks = (len >> sdp->sd_sb.sb_bsize_shift) + 3;
+	*ind_blocks = 3 * (sdp->sd_max_height - 1);
+
+	for (tmp = *data_blocks; tmp > sdp->sd_diptrs;) {
+		tmp = DIV_ROUND_UP(tmp, sdp->sd_inptrs);
+		*ind_blocks += tmp;
+	}
+}
+
 int gfs2_unstuff_dinode(struct gfs2_inode *ip, struct page *page);
 int gfs2_block_map(struct inode *inode, sector_t lblock, struct buffer_head *bh, int create);
 int gfs2_extent_map(struct inode *inode, u64 lblock, int *new, u64 *dblock, unsigned *extlen);
@@ -21,10 +51,6 @@ int gfs2_extent_map(struct inode *inode, u64 lblock, int *new, u64 *dblock, unsi
 int gfs2_truncatei(struct gfs2_inode *ip, u64 size);
 int gfs2_truncatei_resume(struct gfs2_inode *ip);
 int gfs2_file_dealloc(struct gfs2_inode *ip);
-
-void gfs2_write_calc_reserv(struct gfs2_inode *ip, unsigned int len,
-			    unsigned int *data_blocks,
-			    unsigned int *ind_blocks);
 int gfs2_write_alloc_required(struct gfs2_inode *ip, u64 offset,
 			      unsigned int len, int *alloc_required);
 

fs/gfs2/daemon.c

-/*
- * Copyright (C) Sistina Software, Inc.  1997-2003 All rights reserved.
- * Copyright (C) 2004-2006 Red Hat, Inc.  All rights reserved.
- *
- * This copyrighted material is made available to anyone wishing to use,
- * modify, copy, or redistribute it subject to the terms and conditions
- * of the GNU General Public License version 2.
- */
-
-#include <linux/sched.h>
-#include <linux/slab.h>
-#include <linux/spinlock.h>
-#include <linux/completion.h>
-#include <linux/buffer_head.h>
-#include <linux/kthread.h>
-#include <linux/delay.h>
-#include <linux/gfs2_ondisk.h>
-#include <linux/lm_interface.h>
-#include <linux/freezer.h>
-
-#include "gfs2.h"
-#include "incore.h"
-#include "daemon.h"
-#include "glock.h"
-#include "log.h"
-#include "quota.h"
-#include "recovery.h"
-#include "super.h"
-#include "util.h"
-
-/* This uses schedule_timeout() instead of msleep() because it's good for
-   the daemons to wake up more often than the timeout when unmounting so
-   the user's unmount doesn't sit there forever.
-
-   The kthread functions used to start these daemons block and flush signals. */
-
-/**
- * gfs2_glockd - Reclaim unused glock structures
- * @sdp: Pointer to GFS2 superblock
- *
- * One or more of these daemons run, reclaiming glocks on sd_reclaim_list.
- * Number of daemons can be set by user, with num_glockd mount option.
- */
-
-int gfs2_glockd(void *data)
-{
-	struct gfs2_sbd *sdp = data;
-
-	while (!kthread_should_stop()) {
-		while (atomic_read(&sdp->sd_reclaim_count))
-			gfs2_reclaim_glock(sdp);
-
-		wait_event_interruptible(sdp->sd_reclaim_wq,
-					 (atomic_read(&sdp->sd_reclaim_count) ||
-					 kthread_should_stop()));
-		if (freezing(current))
-			refrigerator();
-	}
-
-	return 0;
-}
-
-/**
- * gfs2_recoverd - Recover dead machine's journals
- * @sdp: Pointer to GFS2 superblock
- *
- */
-
-int gfs2_recoverd(void *data)
-{
-	struct gfs2_sbd *sdp = data;
-	unsigned long t;
-
-	while (!kthread_should_stop()) {
-		gfs2_check_journals(sdp);
-		t = gfs2_tune_get(sdp,  gt_recoverd_secs) * HZ;
-		if (freezing(current))
-			refrigerator();
-		schedule_timeout_interruptible(t);
-	}
-
-	return 0;
-}
-
-/**
- * gfs2_quotad - Write cached quota changes into the quota file
- * @sdp: Pointer to GFS2 superblock
- *
- */
-
-int gfs2_quotad(void *data)
-{
-	struct gfs2_sbd *sdp = data;
-	unsigned long t;
-	int error;
-
-	while (!kthread_should_stop()) {
-		/* Update the master statfs file */
-
-		t = sdp->sd_statfs_sync_time +
-		    gfs2_tune_get(sdp, gt_statfs_quantum) * HZ;
-
-		if (time_after_eq(jiffies, t)) {
-			error = gfs2_statfs_sync(sdp);
-			if (error &&
-			    error != -EROFS &&
-			    !test_bit(SDF_SHUTDOWN, &sdp->sd_flags))
-				fs_err(sdp, "quotad: (1) error=%d\n", error);
-			sdp->sd_statfs_sync_time = jiffies;
-		}
-
-		/* Update quota file */
-
-		t = sdp->sd_quota_sync_time +
-		    gfs2_tune_get(sdp, gt_quota_quantum) * HZ;
-
-		if (time_after_eq(jiffies, t)) {
-			error = gfs2_quota_sync(sdp);
-			if (error &&
-			    error != -EROFS &&
-			    !test_bit(SDF_SHUTDOWN, &sdp->sd_flags))
-				fs_err(sdp, "quotad: (2) error=%d\n", error);
-			sdp->sd_quota_sync_time = jiffies;
-		}
-
-		gfs2_quota_scan(sdp);
-
-		t = gfs2_tune_get(sdp, gt_quotad_secs) * HZ;
-		if (freezing(current))
-			refrigerator();
-		schedule_timeout_interruptible(t);
-	}
-
-	return 0;
-}
-

fs/gfs2/daemon.h

-/*
- * Copyright (C) Sistina Software, Inc.  1997-2003 All rights reserved.
- * Copyright (C) 2004-2006 Red Hat, Inc.  All rights reserved.
- *
- * This copyrighted material is made available to anyone wishing to use,
- * modify, copy, or redistribute it subject to the terms and conditions
- * of the GNU General Public License version 2.
- */
-
-#ifndef __DAEMON_DOT_H__
-#define __DAEMON_DOT_H__
-
-int gfs2_glockd(void *data);
-int gfs2_recoverd(void *data);
-int gfs2_quotad(void *data);
-
-#endif /* __DAEMON_DOT_H__ */

fs/gfs2/dir.c

@@ -36,7 +36,7 @@
  * the block.  In leaves, they begin at offset sizeof(struct gfs2_leaf) from the
  * beginning of the leaf block. The dirents reside in leaves when
  *
- * dip->i_di.di_flags & GFS2_DIF_EXHASH is true
+ * dip->i_diskflags & GFS2_DIF_EXHASH is true
  *
  * Otherwise, the dirents are "linear", within a single stuffed dinode block.
  *
@@ -128,8 +128,8 @@ static int gfs2_dir_write_stuffed(struct gfs2_inode *ip, const char *buf,
 
 	gfs2_trans_add_bh(ip->i_gl, dibh, 1);
 	memcpy(dibh->b_data + offset + sizeof(struct gfs2_dinode), buf, size);
-	if (ip->i_di.di_size < offset + size)
-		ip->i_di.di_size = offset + size;
+	if (ip->i_disksize < offset + size)
+		ip->i_disksize = offset + size;
 	ip->i_inode.i_mtime = ip->i_inode.i_ctime = CURRENT_TIME;
 	gfs2_dinode_out(ip, dibh->b_data);
 
@@ -226,8 +226,8 @@ static int gfs2_dir_write_data(struct gfs2_inode *ip, const char *buf,
 	if (error)
 		return error;
 
-	if (ip->i_di.di_size < offset + copied)
-		ip->i_di.di_size = offset + copied;
+	if (ip->i_disksize < offset + copied)
+		ip->i_disksize = offset + copied;
 	ip->i_inode.i_mtime = ip->i_inode.i_ctime = CURRENT_TIME;
 
 	gfs2_trans_add_bh(ip->i_gl, dibh, 1);
@@ -277,11 +277,11 @@ static int gfs2_dir_read_data(struct gfs2_inode *ip, char *buf, u64 offset,
 	int copied = 0;
 	int error = 0;
 
-	if (offset >= ip->i_di.di_size)
+	if (offset >= ip->i_disksize)
 		return 0;
 
-	if (offset + size > ip->i_di.di_size)
-		size = ip->i_di.di_size - offset;
+	if (offset + size > ip->i_disksize)
+		size = ip->i_disksize - offset;
 
 	if (!size)
 		return 0;
@@ -755,12 +755,12 @@ static struct gfs2_dirent *gfs2_dirent_search(struct inode *inode,
 	struct gfs2_inode *ip = GFS2_I(inode);
 	int error;
 
-	if (ip->i_di.di_flags & GFS2_DIF_EXHASH) {
+	if (ip->i_diskflags & GFS2_DIF_EXHASH) {
 		struct gfs2_leaf *leaf;
 		unsigned hsize = 1 << ip->i_depth;
 		unsigned index;
 		u64 ln;
-		if (hsize * sizeof(u64) != ip->i_di.di_size) {
+		if (hsize * sizeof(u64) != ip->i_disksize) {
 			gfs2_consist_inode(ip);
 			return ERR_PTR(-EIO);
 		}
@@ -858,8 +858,8 @@ static int dir_make_exhash(struct inode *inode)
 		return -ENOSPC;
 	bn = bh->b_blocknr;
 
-	gfs2_assert(sdp, dip->i_di.di_entries < (1 << 16));
-	leaf->lf_entries = cpu_to_be16(dip->i_di.di_entries);
+	gfs2_assert(sdp, dip->i_entries < (1 << 16));
+	leaf->lf_entries = cpu_to_be16(dip->i_entries);
 
 	/*  Copy dirents  */
 
@@ -905,9 +905,9 @@ static int dir_make_exhash(struct inode *inode)
 	for (x = sdp->sd_hash_ptrs; x--; lp++)
 		*lp = cpu_to_be64(bn);
 
-	dip->i_di.di_size = sdp->sd_sb.sb_bsize / 2;
+	dip->i_disksize = sdp->sd_sb.sb_bsize / 2;
 	gfs2_add_inode_blocks(&dip->i_inode, 1);
-	dip->i_di.di_flags |= GFS2_DIF_EXHASH;
+	dip->i_diskflags |= GFS2_DIF_EXHASH;
 
 	for (x = sdp->sd_hash_ptrs, y = -1; x; x >>= 1, y++) ;
 	dip->i_depth = y;
@@ -1082,7 +1082,7 @@ static int dir_double_exhash(struct gfs2_inode *dip)
 	int error = 0;
 
 	hsize = 1 << dip->i_depth;
-	if (hsize * sizeof(u64) != dip->i_di.di_size) {
+	if (hsize * sizeof(u64) != dip->i_disksize) {
 		gfs2_consist_inode(dip);
 		return -EIO;
 	}
@@ -1091,7 +1091,7 @@ static int dir_double_exhash(struct gfs2_inode *dip)
 
 	buf = kcalloc(3, sdp->sd_hash_bsize, GFP_NOFS | __GFP_NOFAIL);
 
-	for (block = dip->i_di.di_size >> sdp->sd_hash_bsize_shift; block--;) {
+	for (block = dip->i_disksize >> sdp->sd_hash_bsize_shift; block--;) {
 		error = gfs2_dir_read_data(dip, (char *)buf,
 					    block * sdp->sd_hash_bsize,
 					    sdp->sd_hash_bsize, 1);
@@ -1370,7 +1370,7 @@ static int dir_e_read(struct inode *inode, u64 *offset, void *opaque,
 	unsigned depth = 0;
 
 	hsize = 1 << dip->i_depth;
-	if (hsize * sizeof(u64) != dip->i_di.di_size) {
+	if (hsize * sizeof(u64) != dip->i_disksize) {
 		gfs2_consist_inode(dip);
 		return -EIO;
 	}
@@ -1426,10 +1426,10 @@ int gfs2_dir_read(struct inode *inode, u64 *offset, void *opaque,
 	int copied = 0;
 	int error;
 
-	if (!dip->i_di.di_entries)
+	if (!dip->i_entries)
 		return 0;
 
-	if (dip->i_di.di_flags & GFS2_DIF_EXHASH)
+	if (dip->i_diskflags & GFS2_DIF_EXHASH)
 		return dir_e_read(inode, offset, opaque, filldir);
 
 	if (!gfs2_is_stuffed(dip)) {
@@ -1453,17 +1453,17 @@ int gfs2_dir_read(struct inode *inode, u64 *offset, void *opaque,
 			error = PTR_ERR(dent);
 			goto out;
 		}
-		if (dip->i_di.di_entries != g.offset) {
+		if (dip->i_entries != g.offset) {
 			fs_warn(sdp, "Number of entries corrupt in dir %llu, "
-				"ip->i_di.di_entries (%u) != g.offset (%u)\n",
+				"ip->i_entries (%u) != g.offset (%u)\n",
 				(unsigned long long)dip->i_no_addr,
-				dip->i_di.di_entries,
+				dip->i_entries,
 				g.offset);
 			error = -EIO;
 			goto out;
 		}
 		error = do_filldir_main(dip, offset, opaque, filldir, darr,
-					dip->i_di.di_entries, &copied);
+					dip->i_entries, &copied);
 out:
 		kfree(darr);
 	}
@@ -1612,7 +1612,7 @@ int gfs2_dir_add(struct inode *inode, const struct qstr *name,
 			dent = gfs2_init_dirent(inode, dent, name, bh);
 			gfs2_inum_out(nip, dent);
 			dent->de_type = cpu_to_be16(type);
-			if (ip->i_di.di_flags & GFS2_DIF_EXHASH) {
+			if (ip->i_diskflags & GFS2_DIF_EXHASH) {
 				leaf = (struct gfs2_leaf *)bh->b_data;
 				be16_add_cpu(&leaf->lf_entries, 1);
 			}
@@ -1621,14 +1621,14 @@ int gfs2_dir_add(struct inode *inode, const struct qstr *name,
 			if (error)
 				break;
 			gfs2_trans_add_bh(ip->i_gl, bh, 1);
-			ip->i_di.di_entries++;
+			ip->i_entries++;
 			ip->i_inode.i_mtime = ip->i_inode.i_ctime = CURRENT_TIME;
 			gfs2_dinode_out(ip, bh->b_data);
 			brelse(bh);
 			error = 0;
 			break;
 		}
-		if (!(ip->i_di.di_flags & GFS2_DIF_EXHASH)) {
+		if (!(ip->i_diskflags & GFS2_DIF_EXHASH)) {
 			error = dir_make_exhash(inode);
 			if (error)
 				break;
@@ -1691,7 +1691,7 @@ int gfs2_dir_del(struct gfs2_inode *dip, const struct qstr *name)
 	}
 
 	dirent_del(dip, bh, prev, dent);
-	if (dip->i_di.di_flags & GFS2_DIF_EXHASH) {
+	if (dip->i_diskflags & GFS2_DIF_EXHASH) {
 		struct gfs2_leaf *leaf = (struct gfs2_leaf *)bh->b_data;
 		u16 entries = be16_to_cpu(leaf->lf_entries);
 		if (!entries)
@@ -1704,10 +1704,10 @@ int gfs2_dir_del(struct gfs2_inode *dip, const struct qstr *name)
 	if (error)
 		return error;
 
-	if (!dip->i_di.di_entries)
+	if (!dip->i_entries)
 		gfs2_consist_inode(dip);
 	gfs2_trans_add_bh(dip->i_gl, bh, 1);
-	dip->i_di.di_entries--;
+	dip->i_entries--;
 	dip->i_inode.i_mtime = dip->i_inode.i_ctime = CURRENT_TIME;
 	gfs2_dinode_out(dip, bh->b_data);
 	brelse(bh);
@@ -1748,7 +1748,7 @@ int gfs2_dir_mvino(struct gfs2_inode *dip, const struct qstr *filename,
 	gfs2_inum_out(nip, dent);
 	dent->de_type = cpu_to_be16(new_type);
 
-	if (dip->i_di.di_flags & GFS2_DIF_EXHASH) {
+	if (dip->i_diskflags & GFS2_DIF_EXHASH) {
 		brelse(bh);
 		error = gfs2_meta_inode_buffer(dip, &bh);
 		if (error)
@@ -1784,7 +1784,7 @@ static int foreach_leaf(struct gfs2_inode *dip, leaf_call_t lc, void *data)
 	int error = 0;
 
 	hsize = 1 << dip->i_depth;
-	if (hsize * sizeof(u64) != dip->i_di.di_size) {
+	if (hsize * sizeof(u64) != dip->i_disksize) {
 		gfs2_consist_inode(dip);
 		return -EIO;
 	}

fs/gfs2/dir.h

@@ -11,6 +11,7 @@
 #define __DIR_DOT_H__
 
 #include <linux/dcache.h>
+#include <linux/crc32.h>
 
 struct inode;
 struct gfs2_inode;

fs/gfs2/eattr.c

@@ -114,11 +114,11 @@ static int ea_foreach(struct gfs2_inode *ip, ea_call_t ea_call, void *data)
 	__be64 *eablk, *end;
 	int error;
 
-	error = gfs2_meta_read(ip->i_gl, ip->i_di.di_eattr, DIO_WAIT, &bh);
+	error = gfs2_meta_read(ip->i_gl, ip->i_eattr, DIO_WAIT, &bh);
 	if (error)
 		return error;
 
-	if (!(ip->i_di.di_flags & GFS2_DIF_EA_INDIRECT)) {
+	if (!(ip->i_diskflags & GFS2_DIF_EA_INDIRECT)) {
 		error = ea_foreach_i(ip, bh, ea_call, data);
 		goto out;
 	}
@@ -414,7 +414,7 @@ int gfs2_ea_list(struct gfs2_inode *ip, struct gfs2_ea_request *er)
 	if (error)
 		return error;
 
-	if (ip->i_di.di_eattr) {
+	if (ip->i_eattr) {
 		struct ea_list ei = { .ei_er = er, .ei_size = 0 };
 
 		error = ea_foreach(ip, ea_list_i, &ei);
@@ -514,7 +514,7 @@ int gfs2_ea_get_i(struct gfs2_inode *ip, struct gfs2_ea_request *er)
 	struct gfs2_ea_location el;
 	int error;
 
-	if (!ip->i_di.di_eattr)
+	if (!ip->i_eattr)
 		return -ENODATA;
 
 	error = gfs2_ea_find(ip, er, &el);
@@ -741,7 +741,7 @@ static int ea_init_i(struct gfs2_inode *ip, struct gfs2_ea_request *er,
 	if (error)
 		return error;
 
-	ip->i_di.di_eattr = bh->b_blocknr;
+	ip->i_eattr = bh->b_blocknr;
 	error = ea_write(ip, GFS2_EA_BH2FIRST(bh), er);
 
 	brelse(bh);
@@ -935,10 +935,10 @@ static int ea_set_block(struct gfs2_inode *ip, struct gfs2_ea_request *er,
 	int error;
 	int mh_size = sizeof(struct gfs2_meta_header);
 
-	if (ip->i_di.di_flags & GFS2_DIF_EA_INDIRECT) {
+	if (ip->i_diskflags & GFS2_DIF_EA_INDIRECT) {
 		__be64 *end;
 
-		error = gfs2_meta_read(ip->i_gl, ip->i_di.di_eattr, DIO_WAIT,
+		error = gfs2_meta_read(ip->i_gl, ip->i_eattr, DIO_WAIT,
 				       &indbh);
 		if (error)
 			return error;
@@ -972,9 +972,9 @@ static int ea_set_block(struct gfs2_inode *ip, struct gfs2_ea_request *er,
 		gfs2_buffer_clear_tail(indbh, mh_size);
 
 		eablk = (__be64 *)(indbh->b_data + mh_size);
-		*eablk = cpu_to_be64(ip->i_di.di_eattr);
-		ip->i_di.di_eattr = blk;
-		ip->i_di.di_flags |= GFS2_DIF_EA_INDIRECT;
+		*eablk = cpu_to_be64(ip->i_eattr);
+		ip->i_eattr = blk;
+		ip->i_diskflags |= GFS2_DIF_EA_INDIRECT;
 		gfs2_add_inode_blocks(&ip->i_inode, 1);
 
 		eablk++;
@@ -1015,7 +1015,7 @@ static int ea_set_i(struct gfs2_inode *ip, struct gfs2_ea_request *er,
 	if (error)
 		return error;
 
-	if (!(ip->i_di.di_flags & GFS2_DIF_EA_INDIRECT))
+	if (!(ip->i_diskflags & GFS2_DIF_EA_INDIRECT))
 		blks++;
 	if (GFS2_EAREQ_SIZE_STUFFED(er) > GFS2_SB(&ip->i_inode)->sd_jbsize)
 		blks += DIV_ROUND_UP(er->er_data_len, GFS2_SB(&ip->i_inode)->sd_jbsize);
@@ -1040,7 +1040,7 @@ int gfs2_ea_set_i(struct gfs2_inode *ip, struct gfs2_ea_request *er)
 	struct gfs2_ea_location el;
 	int error;
 
-	if (!ip->i_di.di_eattr) {
+	if (!ip->i_eattr) {
 		if (er->er_flags & XATTR_REPLACE)
 			return -ENODATA;
 		return ea_init(ip, er);
@@ -1051,7 +1051,7 @@ int gfs2_ea_set_i(struct gfs2_inode *ip, struct gfs2_ea_request *er)
 		return error;
 
 	if (el.el_ea) {
-		if (ip->i_di.di_flags & GFS2_DIF_APPENDONLY) {
+		if (ip->i_diskflags & GFS2_DIF_APPENDONLY) {
 			brelse(el.el_bh);
 			return -EPERM;
 		}
@@ -1145,7 +1145,7 @@ int gfs2_ea_remove_i(struct gfs2_inode *ip, struct gfs2_ea_request *er)
 	struct gfs2_ea_location el;
 	int error;
 
-	if (!ip->i_di.di_eattr)
+	if (!ip->i_eattr)
 		return -ENODATA;
 
 	error = gfs2_ea_find(ip, er, &el);
@@ -1309,7 +1309,7 @@ static int ea_dealloc_indirect(struct gfs2_inode *ip)
 
 	memset(&rlist, 0, sizeof(struct gfs2_rgrp_list));
 
-	error = gfs2_meta_read(ip->i_gl, ip->i_di.di_eattr, DIO_WAIT, &indbh);
+	error = gfs2_meta_read(ip->i_gl, ip->i_eattr, DIO_WAIT, &indbh);
 	if (error)
 		return error;
 
@@ -1388,7 +1388,7 @@ static int ea_dealloc_indirect(struct gfs2_inode *ip)
 	if (bstart)
 		gfs2_free_meta(ip, bstart, blen);
 
-	ip->i_di.di_flags &= ~GFS2_DIF_EA_INDIRECT;
+	ip->i_diskflags &= ~GFS2_DIF_EA_INDIRECT;
 
 	error = gfs2_meta_inode_buffer(ip, &dibh);
 	if (!error) {
@@ -1416,7 +1416,7 @@ static int ea_dealloc_block(struct gfs2_inode *ip)
 	struct buffer_head *dibh;
 	int error;
 
-	rgd = gfs2_blk2rgrpd(sdp, ip->i_di.di_eattr);
+	rgd = gfs2_blk2rgrpd(sdp, ip->i_eattr);
 	if (!rgd) {
 		gfs2_consist_inode(ip);
 		return -EIO;
@@ -1432,9 +1432,9 @@ static int ea_dealloc_block(struct gfs2_inode *ip)
 	if (error)
 		goto out_gunlock;
 
-	gfs2_free_meta(ip, ip->i_di.di_eattr, 1);
+	gfs2_free_meta(ip, ip->i_eattr, 1);
 
-	ip->i_di.di_eattr = 0;
+	ip->i_eattr = 0;
 	gfs2_add_inode_blocks(&ip->i_inode, -1);
 
 	error = gfs2_meta_inode_buffer(ip, &dibh);
@@ -1479,7 +1479,7 @@ int gfs2_ea_dealloc(struct gfs2_inode *ip)
 	if (error)
 		goto out_rindex;
 
-	if (ip->i_di.di_flags & GFS2_DIF_EA_INDIRECT) {
+	if (ip->i_diskflags & GFS2_DIF_EA_INDIRECT) {
 		error = ea_dealloc_indirect(ip);
 		if (error)
 			goto out_rindex;

fs/gfs2/glock.c

@@ -40,6 +40,7 @@
 #include "quota.h"
 #include "super.h"
 #include "util.h"
+#include "bmap.h"
 
 struct gfs2_gl_hash_bucket {
         struct hlist_head hb_list;
@@ -61,9 +62,10 @@ static void do_xmote(struct gfs2_glock *gl, struct gfs2_holder *gh, unsigned int
 
 static DECLARE_RWSEM(gfs2_umount_flush_sem);
 static struct dentry *gfs2_root;
-static struct task_struct *scand_process;
-static unsigned int scand_secs = 5;
 static struct workqueue_struct *glock_workqueue;
+static LIST_HEAD(lru_list);
+static atomic_t lru_count = ATOMIC_INIT(0);
+static DEFINE_SPINLOCK(lru_lock);
 
 #define GFS2_GL_HASH_SHIFT      15
 #define GFS2_GL_HASH_SIZE       (1 << GFS2_GL_HASH_SHIFT)
@@ -173,6 +175,22 @@ static void gfs2_glock_hold(struct gfs2_glock *gl)
 	atomic_inc(&gl->gl_ref);
 }
 
+/**
+ * gfs2_glock_schedule_for_reclaim - Add a glock to the reclaim list
+ * @gl: the glock
+ *
+ */
+
+static void gfs2_glock_schedule_for_reclaim(struct gfs2_glock *gl)
+{
+	spin_lock(&lru_lock);
+	if (list_empty(&gl->gl_lru) && gl->gl_state != LM_ST_UNLOCKED) {
+		list_add_tail(&gl->gl_lru, &lru_list);
+		atomic_inc(&lru_count);
+	}
+	spin_unlock(&lru_lock);
+}
+
 /**
  * gfs2_glock_put() - Decrement reference count on glock
  * @gl: The glock to put
@@ -187,14 +205,23 @@ int gfs2_glock_put(struct gfs2_glock *gl)
 	if (atomic_dec_and_test(&gl->gl_ref)) {
 		hlist_del(&gl->gl_list);
 		write_unlock(gl_lock_addr(gl->gl_hash));
+		spin_lock(&lru_lock);
+		if (!list_empty(&gl->gl_lru)) {
+			list_del_init(&gl->gl_lru);
+			atomic_dec(&lru_count);
+		}
+		spin_unlock(&lru_lock);
 		GLOCK_BUG_ON(gl, gl->gl_state != LM_ST_UNLOCKED);
-		GLOCK_BUG_ON(gl, !list_empty(&gl->gl_reclaim));
+		GLOCK_BUG_ON(gl, !list_empty(&gl->gl_lru));
 		GLOCK_BUG_ON(gl, !list_empty(&gl->gl_holders));
 		glock_free(gl);
 		rv = 1;
 		goto out;
 	}
 	write_unlock(gl_lock_addr(gl->gl_hash));
+	/* 1 for being hashed, 1 for having state != LM_ST_UNLOCKED */
+	if (atomic_read(&gl->gl_ref) == 2)
+		gfs2_glock_schedule_for_reclaim(gl);
 out:
 	return rv;
 }
@@ -289,10 +316,13 @@ static void gfs2_holder_wake(struct gfs2_holder *gh)
  * do_promote - promote as many requests as possible on the current queue
  * @gl: The glock
  * 
- * Returns: true if there is a blocked holder at the head of the list
+ * Returns: 1 if there is a blocked holder at the head of the list, or 2
+ *          if a type specific operation is underway.
  */
 
 static int do_promote(struct gfs2_glock *gl)
+__releases(&gl->gl_spin)
+__acquires(&gl->gl_spin)
 {
 	const struct gfs2_glock_operations *glops = gl->gl_ops;
 	struct gfs2_holder *gh, *tmp;
@@ -310,6 +340,8 @@ static int do_promote(struct gfs2_glock *gl)
 				ret = glops->go_lock(gh);
 				spin_lock(&gl->gl_spin);
 				if (ret) {
+					if (ret == 1)
+						return 2;
 					gh->gh_error = ret;
 					list_del_init(&gh->gh_list);
 					gfs2_holder_wake(gh);
@@ -414,6 +446,7 @@ static void finish_xmote(struct gfs2_glock *gl, unsigned int ret)
 	const struct gfs2_glock_operations *glops = gl->gl_ops;
 	struct gfs2_holder *gh;
 	unsigned state = ret & LM_OUT_ST_MASK;
+	int rv;
 
 	spin_lock(&gl->gl_spin);
 	state_change(gl, state);
@@ -468,7 +501,6 @@ static void finish_xmote(struct gfs2_glock *gl, unsigned int ret)
 		gfs2_demote_wake(gl);
 	if (state != LM_ST_UNLOCKED) {
 		if (glops->go_xmote_bh) {
-			int rv;
 			spin_unlock(&gl->gl_spin);
 			rv = glops->go_xmote_bh(gl, gh);
 			if (rv == -EAGAIN)
@@ -479,10 +511,13 @@ static void finish_xmote(struct gfs2_glock *gl, unsigned int ret)
 				goto out;
 			}
 		}
-		do_promote(gl);
+		rv = do_promote(gl);
+		if (rv == 2)
+			goto out_locked;
 	}
 out:
 	clear_bit(GLF_LOCK, &gl->gl_flags);
+out_locked:
 	spin_unlock(&gl->gl_spin);
 	gfs2_glock_put(gl);
 }
@@ -511,6 +546,8 @@ static unsigned int gfs2_lm_lock(struct gfs2_sbd *sdp, void *lock,
  */
 
 static void do_xmote(struct gfs2_glock *gl, struct gfs2_holder *gh, unsigned int target)
+__releases(&gl->gl_spin)
+__acquires(&gl->gl_spin)
 {
 	const struct gfs2_glock_operations *glops = gl->gl_ops;
 	struct gfs2_sbd *sdp = gl->gl_sbd;
@@ -576,8 +613,11 @@ static inline struct gfs2_holder *find_first_holder(const struct gfs2_glock *gl)
  */
 
 static void run_queue(struct gfs2_glock *gl, const int nonblock)
+__releases(&gl->gl_spin)
+__acquires(&gl->gl_spin)
 {
 	struct gfs2_holder *gh = NULL;
+	int ret;
 
 	if (test_and_set_bit(GLF_LOCK, &gl->gl_flags))
 		return;
@@ -596,8 +636,11 @@ static void run_queue(struct gfs2_glock *gl, const int nonblock)
 	} else {
 		if (test_bit(GLF_DEMOTE, &gl->gl_flags))
 			gfs2_demote_wake(gl);
-		if (do_promote(gl) == 0)
+		ret = do_promote(gl);
+		if (ret == 0)
 			goto out;
+		if (ret == 2)
+			return;
 		gh = find_first_waiter(gl);
 		gl->gl_target = gh->gh_state;
 		if (!(gh->gh_flags & (LM_FLAG_TRY | LM_FLAG_TRY_1CB)))
@@ -820,7 +863,7 @@ static void wait_on_demote(struct gfs2_glock *gl)
  */
 
 static void handle_callback(struct gfs2_glock *gl, unsigned int state,
-			    int remote, unsigned long delay)
+			    unsigned long delay)
 {
 	int bit = delay ? GLF_PENDING_DEMOTE : GLF_DEMOTE;
 
@@ -828,9 +871,6 @@ static void handle_callback(struct gfs2_glock *gl, unsigned int state,
 	if (gl->gl_demote_state == LM_ST_EXCLUSIVE) {
 		gl->gl_demote_state = state;
 		gl->gl_demote_time = jiffies;
-		if (remote && gl->gl_ops->go_type == LM_TYPE_IOPEN &&
-		    gl->gl_object)
-			gfs2_glock_schedule_for_reclaim(gl);
 	} else if (gl->gl_demote_state != LM_ST_UNLOCKED &&
 			gl->gl_demote_state != state) {
 		gl->gl_demote_state = LM_ST_UNLOCKED;
@@ -877,6 +917,8 @@ void gfs2_print_dbg(struct seq_file *seq, const char *fmt, ...)
  */
 
 static inline void add_to_queue(struct gfs2_holder *gh)
+__releases(&gl->gl_spin)
+__acquires(&gl->gl_spin)
 {
 	struct gfs2_glock *gl = gh->gh_gl;
 	struct gfs2_sbd *sdp = gl->gl_sbd;
@@ -998,7 +1040,7 @@ void gfs2_glock_dq(struct gfs2_holder *gh)
 
 	spin_lock(&gl->gl_spin);
 	if (gh->gh_flags & GL_NOCACHE)
-		handle_callback(gl, LM_ST_UNLOCKED, 0, 0);
+		handle_callback(gl, LM_ST_UNLOCKED, 0);
 
 	list_del_init(&gh->gh_list);
 	if (find_first_holder(gl) == NULL) {
@@ -1269,12 +1311,26 @@ static void blocking_cb(struct gfs2_sbd *sdp, struct lm_lockname *name,
 		delay = gl->gl_ops->go_min_hold_time;
 
 	spin_lock(&gl->gl_spin);
-	handle_callback(gl, state, 1, delay);
+	handle_callback(gl, state, delay);
 	spin_unlock(&gl->gl_spin);
 	if (queue_delayed_work(glock_workqueue, &gl->gl_work, delay) == 0)
 		gfs2_glock_put(gl);
 }
 
+static void gfs2_jdesc_make_dirty(struct gfs2_sbd *sdp, unsigned int jid)
+{
+	struct gfs2_jdesc *jd;
+
+	spin_lock(&sdp->sd_jindex_spin);
+	list_for_each_entry(jd, &sdp->sd_jindex_list, jd_list) {
+		if (jd->jd_jid != jid)
+			continue;
+		jd->jd_dirty = 1;
+		break;
+	}
+	spin_unlock(&sdp->sd_jindex_spin);
+}
+
 /**
  * gfs2_glock_cb - Callback used by locking module
  * @sdp: Pointer to the superblock
@@ -1338,80 +1394,83 @@ void gfs2_glock_cb(void *cb_data, unsigned int type, void *data)
  * Returns: 1 if it's ok
  */
 
-static int demote_ok(struct gfs2_glock *gl)
+static int demote_ok(const struct gfs2_glock *gl)
 {
 	const struct gfs2_glock_operations *glops = gl->gl_ops;
-	int demote = 1;
-
-	if (test_bit(GLF_STICKY, &gl->gl_flags))
-		demote = 0;
-	else if (glops->go_demote_ok)
-		demote = glops->go_demote_ok(gl);
-
-	return demote;
-}
-
-/**
- * gfs2_glock_schedule_for_reclaim - Add a glock to the reclaim list
- * @gl: the glock
- *
- */
-
-void gfs2_glock_schedule_for_reclaim(struct gfs2_glock *gl)
-{
-	struct gfs2_sbd *sdp = gl->gl_sbd;
 
-	spin_lock(&sdp->sd_reclaim_lock);
-	if (list_empty(&gl->gl_reclaim)) {
-		gfs2_glock_hold(gl);
-		list_add(&gl->gl_reclaim, &sdp->sd_reclaim_list);
-		atomic_inc(&sdp->sd_reclaim_count);
-		spin_unlock(&sdp->sd_reclaim_lock);
-		wake_up(&sdp->sd_reclaim_wq);
-	} else
-		spin_unlock(&sdp->sd_reclaim_lock);
+	if (gl->gl_state == LM_ST_UNLOCKED)
+		return 0;
+	if (!list_empty(&gl->gl_holders))
+		return 0;
+	if (glops->go_demote_ok)
+		return glops->go_demote_ok(gl);
+	return 1;
 }
 
-/**
- * gfs2_reclaim_glock - process the next glock on the filesystem's reclaim list
- * @sdp: the filesystem
- *
- * Called from gfs2_glockd() glock reclaim daemon, or when promoting a
- * different glock and we notice that there are a lot of glocks in the
- * reclaim list.
- *
- */
 
-void gfs2_reclaim_glock(struct gfs2_sbd *sdp)
+static int gfs2_shrink_glock_memory(int nr, gfp_t gfp_mask)
 {
 	struct gfs2_glock *gl;
-	int done_callback = 0;
+	int may_demote;
+	int nr_skipped = 0;
+	int got_ref = 0;
+	LIST_HEAD(skipped);
 
-	spin_lock(&sdp->sd_reclaim_lock);
-	if (list_empty(&sdp->sd_reclaim_list)) {
-		spin_unlock(&sdp->sd_reclaim_lock);
-		return;
-	}
-	gl = list_entry(sdp->sd_reclaim_list.next,
-			struct gfs2_glock, gl_reclaim);
-	list_del_init(&gl->gl_reclaim);
-	spin_unlock(&sdp->sd_reclaim_lock);
+	if (nr == 0)
+		goto out;
 
-	atomic_dec(&sdp->sd_reclaim_count);
-	atomic_inc(&sdp->sd_reclaimed);
+	if (!(gfp_mask & __GFP_FS))
+		return -1;
 
-	spin_lock(&gl->gl_spin);
-	if (find_first_holder(gl) == NULL &&
-	    gl->gl_state != LM_ST_UNLOCKED && demote_ok(gl)) {
-		handle_callback(gl, LM_ST_UNLOCKED, 0, 0);
-		done_callback = 1;
+	spin_lock(&lru_lock);
+	while(nr && !list_empty(&lru_list)) {
+		gl = list_entry(lru_list.next, struct gfs2_glock, gl_lru);
+		list_del_init(&gl->gl_lru);
+		atomic_dec(&lru_count);
+
+		/* Test for being demotable */
+		if (!test_and_set_bit(GLF_LOCK, &gl->gl_flags)) {
+			gfs2_glock_hold(gl);
+			got_ref = 1;
+			spin_unlock(&lru_lock);
+			spin_lock(&gl->gl_spin);
+			may_demote = demote_ok(gl);
+			spin_unlock(&gl->gl_spin);
+			clear_bit(GLF_LOCK, &gl->gl_flags);
+			if (may_demote) {
+				handle_callback(gl, LM_ST_UNLOCKED, 0);
+				nr--;
+				if (queue_delayed_work(glock_workqueue, &gl->gl_work, 0) == 0)
+					gfs2_glock_put(gl);
+			}
+			spin_lock(&lru_lock);
+			if (may_demote)
+				continue;
+		}
+		if (list_empty(&gl->gl_lru) &&
+		    (atomic_read(&gl->gl_ref) <= (2 + got_ref))) {
+			nr_skipped++;
+			list_add(&gl->gl_lru, &skipped);
+		}
+		if (got_ref) {
+			spin_unlock(&lru_lock);
+			gfs2_glock_put(gl);
+			spin_lock(&lru_lock);
+			got_ref = 0;
+		}
 	}
-	spin_unlock(&gl->gl_spin);
-	if (!done_callback ||
-	    queue_delayed_work(glock_workqueue, &gl->gl_work, 0) == 0)
-		gfs2_glock_put(gl);
+	list_splice(&skipped, &lru_list);
+	atomic_add(nr_skipped, &lru_count);
+	spin_unlock(&lru_lock);
+out:
+	return (atomic_read(&lru_count) / 100) * sysctl_vfs_cache_pressure;
 }
 
+static struct shrinker glock_shrinker = {
+	.shrink = gfs2_shrink_glock_memory,
+	.seeks = DEFAULT_SEEKS,
+};
+
 /**
  * examine_bucket - Call a function for glock in a hash bucket
  * @examiner: the function
@@ -1456,26 +1515,6 @@ static int examine_bucket(glock_examiner examiner, struct gfs2_sbd *sdp,
 	return has_entries;
 }
 
-/**
- * scan_glock - look at a glock and see if we can reclaim it
- * @gl: the glock to look at
- *
- */
-
-static void scan_glock(struct gfs2_glock *gl)
-{
-	if (gl->gl_ops == &gfs2_inode_glops && gl->gl_object)
-		return;
-	if (test_bit(GLF_LOCK, &gl->gl_flags))
-		return;
-
-	spin_lock(&gl->gl_spin);
-	if (find_first_holder(gl) == NULL &&
-	    gl->gl_state != LM_ST_UNLOCKED && demote_ok(gl))
-		gfs2_glock_schedule_for_reclaim(gl);
-	spin_unlock(&gl->gl_spin);
-}
-
 /**
  * clear_glock - look at a glock and see if we can free it from glock cache
  * @gl: the glock to look at
@@ -1484,23 +1523,16 @@ static void scan_glock(struct gfs2_glock *gl)
 
 static void clear_glock(struct gfs2_glock *gl)
 {
-	struct gfs2_sbd *sdp = gl->gl_sbd;
-	int released;
-
-	spin_lock(&sdp->sd_reclaim_lock);
-	if (!list_empty(&gl->gl_reclaim)) {
-		list_del_init(&gl->gl_reclaim);
-		atomic_dec(&sdp->sd_reclaim_count);
-		spin_unlock(&sdp->sd_reclaim_lock);
-		released = gfs2_glock_put(gl);
-		gfs2_assert(sdp, !released);
-	} else {
-		spin_unlock(&sdp->sd_reclaim_lock);
+	spin_lock(&lru_lock);
+	if (!list_empty(&gl->gl_lru)) {
+		list_del_init(&gl->gl_lru);
+		atomic_dec(&lru_count);
 	}
+	spin_unlock(&lru_lock);
 
 	spin_lock(&gl->gl_spin);
 	if (find_first_holder(gl) == NULL && gl->gl_state != LM_ST_UNLOCKED)
-		handle_callback(gl, LM_ST_UNLOCKED, 0, 0);
+		handle_callback(gl, LM_ST_UNLOCKED, 0);
 	spin_unlock(&gl->gl_spin);
 	gfs2_glock_hold(gl);
 	if (queue_delayed_work(glock_workqueue, &gl->gl_work, 0) == 0)
@@ -1548,6 +1580,20 @@ void gfs2_gl_hash_clear(struct gfs2_sbd *sdp)
 	}
 }
 
+void gfs2_glock_finish_truncate(struct gfs2_inode *ip)
+{
+	struct gfs2_glock *gl = ip->i_gl;
+	int ret;
+
+	ret = gfs2_truncatei_resume(ip);
+	gfs2_assert_withdraw(gl->gl_sbd, ret == 0);
+
+	spin_lock(&gl->gl_spin);
+	clear_bit(GLF_LOCK, &gl->gl_flags);
+	run_queue(gl, 1);
+	spin_unlock(&gl->gl_spin);
+}
+
 static const char *state2str(unsigned state)
 {
 	switch(state) {
@@ -1623,8 +1669,6 @@ static const char *gflags2str(char *buf, const unsigned long *gflags)
 	char *p = buf;
 	if (test_bit(GLF_LOCK, gflags))
 		*p++ = 'l';
-	if (test_bit(GLF_STICKY, gflags))
-		*p++ = 's';
 	if (test_bit(GLF_DEMOTE, gflags))
 		*p++ = 'D';
 	if (test_bit(GLF_PENDING_DEMOTE, gflags))
@@ -1743,34 +1787,6 @@ static int gfs2_dump_lockstate(struct gfs2_sbd *sdp)
 	return error;
 }
 
-/**
- * gfs2_scand - Look for cached glocks and inodes to toss from memory
- * @sdp: Pointer to GFS2 superblock
- *
- * One of these daemons runs, finding candidates to add to sd_reclaim_list.
- * See gfs2_glockd()
- */
-
-static int gfs2_scand(void *data)
-{
-	unsigned x;
-	unsigned delay;
-
-	while (!kthread_should_stop()) {
-		for (x = 0; x < GFS2_GL_HASH_SIZE; x++)
-			examine_bucket(scan_glock, NULL, x);
-		if (freezing(current))
-			refrigerator();
-		delay = scand_secs;
-		if (delay < 1)
-			delay = 1;
-		schedule_timeout_interruptible(delay * HZ);
-	}
-
-	return 0;
-}
-
-
 
 int __init gfs2_glock_init(void)
 {
@@ -1784,28 +1800,21 @@ int __init gfs2_glock_init(void)
 	}
 #endif
 
-	scand_process = kthread_run(gfs2_scand, NULL, "gfs2_scand");
-	if (IS_ERR(scand_process))
-		return PTR_ERR(scand_process);
-
 	glock_workqueue = create_workqueue("glock_workqueue");
-	if (IS_ERR(glock_workqueue)) {
-		kthread_stop(scand_process);
+	if (IS_ERR(glock_workqueue))
 		return PTR_ERR(glock_workqueue);
-	}
+
+	register_shrinker(&glock_shrinker);
 
 	return 0;
 }
 
 void gfs2_glock_exit(void)
 {
+	unregister_shrinker(&glock_shrinker);
 	destroy_workqueue(glock_workqueue);
-	kthread_stop(scand_process);
 }
 
-module_param(scand_secs, uint, S_IRUGO|S_IWUSR);
-MODULE_PARM_DESC(scand_secs, "The number of seconds between scand runs");
-
 static int gfs2_glock_iter_next(struct gfs2_glock_iter *gi)
 {
 	struct gfs2_glock *gl;

fs/gfs2/glock.h

@@ -129,9 +129,9 @@ int gfs2_lvb_hold(struct gfs2_glock *gl);
 void gfs2_lvb_unhold(struct gfs2_glock *gl);
 
 void gfs2_glock_cb(void *cb_data, unsigned int type, void *data);
-void gfs2_glock_schedule_for_reclaim(struct gfs2_glock *gl);
 void gfs2_reclaim_glock(struct gfs2_sbd *sdp);
 void gfs2_gl_hash_clear(struct gfs2_sbd *sdp);
+void gfs2_glock_finish_truncate(struct gfs2_inode *ip);
 
 int __init gfs2_glock_init(void);
 void gfs2_glock_exit(void);

fs/gfs2/glops.c

@@ -201,19 +201,12 @@ static void inode_go_inval(struct gfs2_glock *gl, int flags)
  * Returns: 1 if it's ok
  */
 
-static int inode_go_demote_ok(struct gfs2_glock *gl)
+static int inode_go_demote_ok(const struct gfs2_glock *gl)
 {
 	struct gfs2_sbd *sdp = gl->gl_sbd;
-	int demote = 0;
-
-	if (!gl->gl_object && !gl->gl_aspace->i_mapping->nrpages)
-		demote = 1;
-	else if (!sdp->sd_args.ar_localcaching &&
-		 time_after_eq(jiffies, gl->gl_stamp +
-			       gfs2_tune_get(sdp, gt_demote_secs) * HZ))
-		demote = 1;
-
-	return demote;
+	if (sdp->sd_jindex == gl->gl_object || sdp->sd_rindex == gl->gl_object)
+		return 0;
+	return 1;
 }
 
 /**
@@ -227,6 +220,7 @@ static int inode_go_demote_ok(struct gfs2_glock *gl)
 static int inode_go_lock(struct gfs2_holder *gh)
 {
 	struct gfs2_glock *gl = gh->gh_gl;
+	struct gfs2_sbd *sdp = gl->gl_sbd;
 	struct gfs2_inode *ip = gl->gl_object;
 	int error = 0;
 
@@ -239,10 +233,16 @@ static int inode_go_lock(struct gfs2_holder *gh)
 			return error;
 	}
 
-	if ((ip->i_di.di_flags & GFS2_DIF_TRUNC_IN_PROG) &&
+	if ((ip->i_diskflags & GFS2_DIF_TRUNC_IN_PROG) &&
 	    (gl->gl_state == LM_ST_EXCLUSIVE) &&
-	    (gh->gh_state == LM_ST_EXCLUSIVE))
-		error = gfs2_truncatei_resume(ip);
+	    (gh->gh_state == LM_ST_EXCLUSIVE)) {
+		spin_lock(&sdp->sd_trunc_lock);
+		if (list_empty(&ip->i_trunc_list))
+			list_add(&sdp->sd_trunc_list, &ip->i_trunc_list);
+		spin_unlock(&sdp->sd_trunc_lock);
+		wake_up(&sdp->sd_quota_wait);
+		return 1;
+	}
 
 	return error;
 }
@@ -260,10 +260,13 @@ static int inode_go_dump(struct seq_file *seq, const struct gfs2_glock *gl)
 	const struct gfs2_inode *ip = gl->gl_object;
 	if (ip == NULL)
 		return 0;
-	gfs2_print_dbg(seq, " I: n:%llu/%llu t:%u f:0x%08lx\n",
+	gfs2_print_dbg(seq, " I: n:%llu/%llu t:%u f:0x%02lx d:0x%08x s:%llu/%llu\n",
 		  (unsigned long long)ip->i_no_formal_ino,
 		  (unsigned long long)ip->i_no_addr,
-		  IF2DT(ip->i_inode.i_mode), ip->i_flags);
+		  IF2DT(ip->i_inode.i_mode), ip->i_flags,
+		  (unsigned int)ip->i_diskflags,
+		  (unsigned long long)ip->i_inode.i_size,
+		  (unsigned long long)ip->i_disksize);
 	return 0;
 }
 
@@ -274,7 +277,7 @@ static int inode_go_dump(struct seq_file *seq, const struct gfs2_glock *gl)
  * Returns: 1 if it's ok
  */
 
-static int rgrp_go_demote_ok(struct gfs2_glock *gl)
+static int rgrp_go_demote_ok(const struct gfs2_glock *gl)
 {
 	return !gl->gl_aspace->i_mapping->nrpages;
 }
@@ -318,7 +321,9 @@ static int rgrp_go_dump(struct seq_file *seq, const struct gfs2_glock *gl)
 	const struct gfs2_rgrpd *rgd = gl->gl_object;
 	if (rgd == NULL)
 		return 0;
-	gfs2_print_dbg(seq, " R: n:%llu\n", (unsigned long long)rgd->rd_addr);
+	gfs2_print_dbg(seq, " R: n:%llu f:%02x b:%u/%u i:%u\n",
+		       (unsigned long long)rgd->rd_addr, rgd->rd_flags,
+		       rgd->rd_free, rgd->rd_free_clone, rgd->rd_dinodes);
 	return 0;
 }
 
@@ -373,6 +378,18 @@ static int trans_go_xmote_bh(struct gfs2_glock *gl, struct gfs2_holder *gh)
 	return 0;
 }
 
+/**
+ * trans_go_demote_ok
+ * @gl: the glock
+ *
+ * Always returns 0
+ */
+
+static int trans_go_demote_ok(const struct gfs2_glock *gl)
+{
+	return 0;
+}
+
 /**
  * quota_go_demote_ok - Check to see if it's ok to unlock a quota glock
  * @gl: the glock
@@ -380,7 +397,7 @@ static int trans_go_xmote_bh(struct gfs2_glock *gl, struct gfs2_holder *gh)
  * Returns: 1 if it's ok
  */
 
-static int quota_go_demote_ok(struct gfs2_glock *gl)
+static int quota_go_demote_ok(const struct gfs2_glock *gl)
 {
 	return !atomic_read(&gl->gl_lvb_count);
 }
@@ -414,6 +431,7 @@ const struct gfs2_glock_operations gfs2_rgrp_glops = {
 const struct gfs2_glock_operations gfs2_trans_glops = {
 	.go_xmote_th = trans_go_sync,
 	.go_xmote_bh = trans_go_xmote_bh,
+	.go_demote_ok = trans_go_demote_ok,
 	.go_type = LM_TYPE_NONDISK,
 };
 

fs/gfs2/incore.h

@@ -68,12 +68,6 @@ struct gfs2_bitmap {
 	u32 bi_len;
 };
 
-struct gfs2_rgrp_host {
-	u32 rg_free;
-	u32 rg_dinodes;
-	u64 rg_igeneration;
-};
-
 struct gfs2_rgrpd {
 	struct list_head rd_list;	/* Link with superblock */
 	struct list_head rd_list_mru;
@@ -83,14 +77,16 @@ struct gfs2_rgrpd {
 	u32 rd_length;			/* length of rgrp header in fs blocks */
 	u32 rd_data;			/* num of data blocks in rgrp */
 	u32 rd_bitbytes;		/* number of bytes in data bitmaps */
-	struct gfs2_rgrp_host rd_rg;
+	u32 rd_free;
+	u32 rd_free_clone;
+	u32 rd_dinodes;
+	u64 rd_igeneration;
 	struct gfs2_bitmap *rd_bits;
-	unsigned int rd_bh_count;
 	struct mutex rd_mutex;
-	u32 rd_free_clone;
 	struct gfs2_log_element rd_le;
-	u32 rd_last_alloc;
 	struct gfs2_sbd *rd_sbd;
+	unsigned int rd_bh_count;
+	u32 rd_last_alloc;
 	unsigned char rd_flags;
 #define GFS2_RDF_CHECK        0x01      /* Need to check for unlinked inodes */
 #define GFS2_RDF_NOALLOC      0x02      /* rg prohibits allocation */
@@ -129,7 +125,7 @@ struct gfs2_glock_operations {
 	void (*go_xmote_th) (struct gfs2_glock *gl);
 	int (*go_xmote_bh) (struct gfs2_glock *gl, struct gfs2_holder *gh);
 	void (*go_inval) (struct gfs2_glock *gl, int flags);
-	int (*go_demote_ok) (struct gfs2_glock *gl);
+	int (*go_demote_ok) (const struct gfs2_glock *gl);
 	int (*go_lock) (struct gfs2_holder *gh);
 	void (*go_unlock) (struct gfs2_holder *gh);
 	int (*go_dump)(struct seq_file *seq, const struct gfs2_glock *gl);
@@ -159,7 +155,6 @@ struct gfs2_holder {
 
 enum {
 	GLF_LOCK			= 1,
-	GLF_STICKY			= 2,
 	GLF_DEMOTE			= 3,
 	GLF_PENDING_DEMOTE		= 4,
 	GLF_DEMOTE_IN_PROGRESS		= 5,
@@ -194,7 +189,7 @@ struct gfs2_glock {
 	unsigned long gl_tchange;
 	void *gl_object;
 
-	struct list_head gl_reclaim;
+	struct list_head gl_lru;
 
 	struct gfs2_sbd *gl_sbd;
 
@@ -233,29 +228,24 @@ enum {
 	GIF_USER                = 4, /* user inode, not metadata addr space */
 };
 
-struct gfs2_dinode_host {
-	u64 di_size;		/* number of bytes in file */
-	u64 di_generation;	/* generation number for NFS */
-	u32 di_flags;		/* GFS2_DIF_... */
-	/* These only apply to directories  */
-	u32 di_entries;		/* The number of entries in the directory */
-	u64 di_eattr;		/* extended attribute block number */
-};
 
 struct gfs2_inode {
 	struct inode i_inode;
 	u64 i_no_addr;
 	u64 i_no_formal_ino;
+	u64 i_generation;
+	u64 i_eattr;
+	loff_t i_disksize;
 	unsigned long i_flags;		/* GIF_... */
-
-	struct gfs2_dinode_host i_di; /* To be replaced by ref to block */
-
 	struct gfs2_glock *i_gl; /* Move into i_gh? */
 	struct gfs2_holder i_iopen_gh;
 	struct gfs2_holder i_gh; /* for prepare/commit_write only */
 	struct gfs2_alloc *i_alloc;
 	u64 i_goal;	/* goal block for allocations */
 	struct rw_semaphore i_rw_mutex;
+	struct list_head i_trunc_list;
+	u32 i_entries;
+	u32 i_diskflags;
 	u8 i_height;
 	u8 i_depth;
 };
@@ -406,13 +396,11 @@ struct gfs2_args {
 struct gfs2_tune {
 	spinlock_t gt_spin;
 
-	unsigned int gt_demote_secs; /* Cache retention for unheld glock */
 	unsigned int gt_incore_log_blocks;
 	unsigned int gt_log_flush_secs;
 
 	unsigned int gt_recoverd_secs;
 	unsigned int gt_logd_secs;
-	unsigned int gt_quotad_secs;
 
 	unsigned int gt_quota_simul_sync; /* Max quotavals to sync at once */
 	unsigned int gt_quota_warn_period; /* Secs between quota warn msgs */
@@ -488,10 +476,6 @@ struct gfs2_sbd {
 	/* Lock Stuff */
 
 	struct lm_lockstruct sd_lockstruct;
-	struct list_head sd_reclaim_list;
-	spinlock_t sd_reclaim_lock;
-	wait_queue_head_t sd_reclaim_wq;
-	atomic_t sd_reclaim_count;
 	struct gfs2_holder sd_live_gh;
 	struct gfs2_glock *sd_rename_gl;
 	struct gfs2_glock *sd_trans_gl;
@@ -519,7 +503,6 @@ struct gfs2_sbd {
 	spinlock_t sd_statfs_spin;
 	struct gfs2_statfs_change_host sd_statfs_master;
 	struct gfs2_statfs_change_host sd_statfs_local;
-	unsigned long sd_statfs_sync_time;
 
 	/* Resource group stuff */
 
@@ -552,8 +535,6 @@ struct gfs2_sbd {
 	struct task_struct *sd_recoverd_process;
 	struct task_struct *sd_logd_process;
 	struct task_struct *sd_quotad_process;
-	struct task_struct *sd_glockd_process[GFS2_GLOCKD_MAX];
-	unsigned int sd_glockd_num;
 
 	/* Quota stuff */
 
@@ -561,13 +542,15 @@ struct gfs2_sbd {
 	atomic_t sd_quota_count;
 	spinlock_t sd_quota_spin;
 	struct mutex sd_quota_mutex;
+	wait_queue_head_t sd_quota_wait;
+	struct list_head sd_trunc_list;
+	spinlock_t sd_trunc_lock;
 
 	unsigned int sd_quota_slots;
 	unsigned int sd_quota_chunks;
 	unsigned char **sd_quota_bitmap;
 
 	u64 sd_quota_sync_gen;
-	unsigned long sd_quota_sync_time;
 
 	/* Log stuff */
 
@@ -624,10 +607,6 @@ struct gfs2_sbd {
 	struct mutex sd_freeze_lock;
 	unsigned int sd_freeze_count;
 
-	/* Counters */
-
-	atomic_t sd_reclaimed;
-
 	char sd_fsname[GFS2_FSNAME_LEN];
 	char sd_table_name[GFS2_FSNAME_LEN];
 	char sd_proto_name[GFS2_FSNAME_LEN];

fs/gfs2/inode.c

@@ -32,7 +32,6 @@
 #include "log.h"
 #include "meta_io.h"
 #include "ops_address.h"
-#include "ops_inode.h"
 #include "quota.h"
 #include "rgrp.h"
 #include "trans.h"
@@ -248,7 +247,6 @@ struct inode *gfs2_inode_lookup(struct super_block *sb,
 
 static int gfs2_dinode_in(struct gfs2_inode *ip, const void *buf)
 {
-	struct gfs2_dinode_host *di = &ip->i_di;
 	const struct gfs2_dinode *str = buf;
 	struct timespec atime;
 	u16 height, depth;
@@ -274,8 +272,8 @@ static int gfs2_dinode_in(struct gfs2_inode *ip, const void *buf)
 	 * to do that.
 	 */
 	ip->i_inode.i_nlink = be32_to_cpu(str->di_nlink);
-	di->di_size = be64_to_cpu(str->di_size);
-	i_size_write(&ip->i_inode, di->di_size);
+	ip->i_disksize = be64_to_cpu(str->di_size);
+	i_size_write(&ip->i_inode, ip->i_disksize);
 	gfs2_set_inode_blocks(&ip->i_inode, be64_to_cpu(str->di_blocks));
 	atime.tv_sec = be64_to_cpu(str->di_atime);
 	atime.tv_nsec = be32_to_cpu(str->di_atime_nsec);
@@ -287,9 +285,9 @@ static int gfs2_dinode_in(struct gfs2_inode *ip, const void *buf)
 	ip->i_inode.i_ctime.tv_nsec = be32_to_cpu(str->di_ctime_nsec);
 
 	ip->i_goal = be64_to_cpu(str->di_goal_meta);
-	di->di_generation = be64_to_cpu(str->di_generation);
+	ip->i_generation = be64_to_cpu(str->di_generation);
 
-	di->di_flags = be32_to_cpu(str->di_flags);
+	ip->i_diskflags = be32_to_cpu(str->di_flags);
 	gfs2_set_inode_flags(&ip->i_inode);
 	height = be16_to_cpu(str->di_height);
 	if (unlikely(height > GFS2_MAX_META_HEIGHT))
@@ -300,9 +298,9 @@ static int gfs2_dinode_in(struct gfs2_inode *ip, const void *buf)
 	if (unlikely(depth > GFS2_DIR_MAX_DEPTH))
 		goto corrupt;
 	ip->i_depth = (u8)depth;
-	di->di_entries = be32_to_cpu(str->di_entries);
+	ip->i_entries = be32_to_cpu(str->di_entries);
 
-	di->di_eattr = be64_to_cpu(str->di_eattr);
+	ip->i_eattr = be64_to_cpu(str->di_eattr);
 	if (S_ISREG(ip->i_inode.i_mode))
 		gfs2_set_aops(&ip->i_inode);
 
@@ -388,7 +386,6 @@ int gfs2_dinode_dealloc(struct gfs2_inode *ip)
 	gfs2_free_di(rgd, ip);
 
 	gfs2_trans_end(sdp);
-	clear_bit(GLF_STICKY, &ip->i_gl->gl_flags);
 
 out_rg_gunlock:
 	gfs2_glock_dq_uninit(&al->al_rgd_gh);
@@ -690,7 +687,7 @@ static int create_ok(struct gfs2_inode *dip, const struct qstr *name,
 		return error;
 	}
 
-	if (dip->i_di.di_entries == (u32)-1)
+	if (dip->i_entries == (u32)-1)
 		return -EFBIG;
 	if (S_ISDIR(mode) && dip->i_inode.i_nlink == (u32)-1)
 		return -EMLINK;
@@ -790,11 +787,11 @@ static void init_dinode(struct gfs2_inode *dip, struct gfs2_glock *gl,
 	di->di_flags = 0;
 
 	if (S_ISREG(mode)) {
-		if ((dip->i_di.di_flags & GFS2_DIF_INHERIT_JDATA) ||
+		if ((dip->i_diskflags & GFS2_DIF_INHERIT_JDATA) ||
 		    gfs2_tune_get(sdp, gt_new_files_jdata))
 			di->di_flags |= cpu_to_be32(GFS2_DIF_JDATA);
 	} else if (S_ISDIR(mode)) {
-		di->di_flags |= cpu_to_be32(dip->i_di.di_flags &
+		di->di_flags |= cpu_to_be32(dip->i_diskflags &
 					    GFS2_DIF_INHERIT_JDATA);
 	}
 
@@ -1068,7 +1065,7 @@ int gfs2_rmdiri(struct gfs2_inode *dip, const struct qstr *name,
 	struct qstr dotname;
 	int error;
 
-	if (ip->i_di.di_entries != 2) {
+	if (ip->i_entries != 2) {
 		if (gfs2_consist_inode(ip))
 			gfs2_dinode_print(ip);
 		return -EIO;
@@ -1168,7 +1165,7 @@ int gfs2_readlinki(struct gfs2_inode *ip, char **buf, unsigned int *len)
 		return error;
 	}
 
-	if (!ip->i_di.di_size) {
+	if (!ip->i_disksize) {
 		gfs2_consist_inode(ip);
 		error = -EIO;
 		goto out;
@@ -1178,7 +1175,7 @@ int gfs2_readlinki(struct gfs2_inode *ip, char **buf, unsigned int *len)
 	if (error)
 		goto out;
 
-	x = ip->i_di.di_size + 1;
+	x = ip->i_disksize + 1;
 	if (x > *len) {
 		*buf = kmalloc(x, GFP_NOFS);
 		if (!*buf) {
@@ -1242,7 +1239,6 @@ int gfs2_setattr_simple(struct gfs2_inode *ip, struct iattr *attr)
 
 void gfs2_dinode_out(const struct gfs2_inode *ip, void *buf)
 {
-	const struct gfs2_dinode_host *di = &ip->i_di;
 	struct gfs2_dinode *str = buf;
 
 	str->di_header.mh_magic = cpu_to_be32(GFS2_MAGIC);
@@ -1256,7 +1252,7 @@ void gfs2_dinode_out(const struct gfs2_inode *ip, void *buf)
 	str->di_uid = cpu_to_be32(ip->i_inode.i_uid);
 	str->di_gid = cpu_to_be32(ip->i_inode.i_gid);
 	str->di_nlink = cpu_to_be32(ip->i_inode.i_nlink);
-	str->di_size = cpu_to_be64(di->di_size);
+	str->di_size = cpu_to_be64(ip->i_disksize);
 	str->di_blocks = cpu_to_be64(gfs2_get_inode_blocks(&ip->i_inode));
 	str->di_atime = cpu_to_be64(ip->i_inode.i_atime.tv_sec);
 	str->di_mtime = cpu_to_be64(ip->i_inode.i_mtime.tv_sec);
@@ -1264,17 +1260,17 @@ void gfs2_dinode_out(const struct gfs2_inode *ip, void *buf)
 
 	str->di_goal_meta = cpu_to_be64(ip->i_goal);
 	str->di_goal_data = cpu_to_be64(ip->i_goal);
-	str->di_generation = cpu_to_be64(di->di_generation);
+	str->di_generation = cpu_to_be64(ip->i_generation);
 
-	str->di_flags = cpu_to_be32(di->di_flags);
+	str->di_flags = cpu_to_be32(ip->i_diskflags);
 	str->di_height = cpu_to_be16(ip->i_height);
 	str->di_payload_format = cpu_to_be32(S_ISDIR(ip->i_inode.i_mode) &&
-					     !(ip->i_di.di_flags & GFS2_DIF_EXHASH) ?
+					     !(ip->i_diskflags & GFS2_DIF_EXHASH) ?
 					     GFS2_FORMAT_DE : 0);
 	str->di_depth = cpu_to_be16(ip->i_depth);
-	str->di_entries = cpu_to_be32(di->di_entries);
+	str->di_entries = cpu_to_be32(ip->i_entries);
 
-	str->di_eattr = cpu_to_be64(di->di_eattr);
+	str->di_eattr = cpu_to_be64(ip->i_eattr);
 	str->di_atime_nsec = cpu_to_be32(ip->i_inode.i_atime.tv_nsec);
 	str->di_mtime_nsec = cpu_to_be32(ip->i_inode.i_mtime.tv_nsec);
 	str->di_ctime_nsec = cpu_to_be32(ip->i_inode.i_ctime.tv_nsec);
@@ -1282,22 +1278,21 @@ void gfs2_dinode_out(const struct gfs2_inode *ip, void *buf)
 
 void gfs2_dinode_print(const struct gfs2_inode *ip)
 {
-	const struct gfs2_dinode_host *di = &ip->i_di;
-
 	printk(KERN_INFO "  no_formal_ino = %llu\n",
 	       (unsigned long long)ip->i_no_formal_ino);
 	printk(KERN_INFO "  no_addr = %llu\n",
 	       (unsigned long long)ip->i_no_addr);
-	printk(KERN_INFO "  di_size = %llu\n", (unsigned long long)di->di_size);
+	printk(KERN_INFO "  i_disksize = %llu\n",
+	       (unsigned long long)ip->i_disksize);
 	printk(KERN_INFO "  blocks = %llu\n",
 	       (unsigned long long)gfs2_get_inode_blocks(&ip->i_inode));
 	printk(KERN_INFO "  i_goal = %llu\n",
 	       (unsigned long long)ip->i_goal);
-	printk(KERN_INFO "  di_flags = 0x%.8X\n", di->di_flags);
+	printk(KERN_INFO "  i_diskflags = 0x%.8X\n", ip->i_diskflags);
 	printk(KERN_INFO "  i_height = %u\n", ip->i_height);
 	printk(KERN_INFO "  i_depth = %u\n", ip->i_depth);
-	printk(KERN_INFO "  di_entries = %u\n", di->di_entries);
-	printk(KERN_INFO "  di_eattr = %llu\n",
-	       (unsigned long long)di->di_eattr);
+	printk(KERN_INFO "  i_entries = %u\n", ip->i_entries);
+	printk(KERN_INFO "  i_eattr = %llu\n",
+	       (unsigned long long)ip->i_eattr);
 }
 

fs/gfs2/inode.h

@@ -10,6 +10,7 @@
 #ifndef __INODE_DOT_H__
 #define __INODE_DOT_H__
 
+#include <linux/fs.h>
 #include "util.h"
 
 static inline int gfs2_is_stuffed(const struct gfs2_inode *ip)
@@ -19,7 +20,7 @@ static inline int gfs2_is_stuffed(const struct gfs2_inode *ip)
 
 static inline int gfs2_is_jdata(const struct gfs2_inode *ip)
 {
-	return ip->i_di.di_flags & GFS2_DIF_JDATA;
+	return ip->i_diskflags & GFS2_DIF_JDATA;
 }
 
 static inline int gfs2_is_writeback(const struct gfs2_inode *ip)
@@ -97,5 +98,15 @@ struct inode *gfs2_lookup_simple(struct inode *dip, const char *name);
 void gfs2_dinode_out(const struct gfs2_inode *ip, void *buf);
 void gfs2_dinode_print(const struct gfs2_inode *ip);
 
+extern const struct inode_operations gfs2_file_iops;
+extern const struct inode_operations gfs2_dir_iops;
+extern const struct inode_operations gfs2_symlink_iops;
+extern const struct file_operations gfs2_file_fops;
+extern const struct file_operations gfs2_dir_fops;
+extern const struct file_operations gfs2_file_fops_nolock;
+extern const struct file_operations gfs2_dir_fops_nolock;
+
+extern void gfs2_set_inode_flags(struct inode *inode);
+
 #endif /* __INODE_DOT_H__ */
 

fs/gfs2/locking/dlm/mount.c

@@ -194,17 +194,25 @@ static void gdlm_unmount(void *lockspace)
 static void gdlm_recovery_done(void *lockspace, unsigned int jid,
                                unsigned int message)
 {
+	char env_jid[20];
+	char env_status[20];
+	char *envp[] = { env_jid, env_status, NULL };
 	struct gdlm_ls *ls = lockspace;
 	ls->recover_jid_done = jid;
 	ls->recover_jid_status = message;
-	kobject_uevent(&ls->kobj, KOBJ_CHANGE);
+	sprintf(env_jid, "JID=%d", jid);
+	sprintf(env_status, "RECOVERY=%s",
+		message == LM_RD_SUCCESS ? "Done" : "Failed");
+	kobject_uevent_env(&ls->kobj, KOBJ_CHANGE, envp);
 }
 
 static void gdlm_others_may_mount(void *lockspace)
 {
+	char *message = "FIRSTMOUNT=Done";
+	char *envp[] = { message, NULL };
 	struct gdlm_ls *ls = lockspace;
 	ls->first_done = 1;
-	kobject_uevent(&ls->kobj, KOBJ_CHANGE);
+	kobject_uevent_env(&ls->kobj, KOBJ_CHANGE, envp);
 }
 
 /* Userspace gets the offline uevent, blocks new gfs locks on

fs/gfs2/locking/dlm/sysfs.c

@@ -195,9 +195,23 @@ void gdlm_kobject_release(struct gdlm_ls *ls)
 	kobject_put(&ls->kobj);
 }
 
+static int gdlm_uevent(struct kset *kset, struct kobject *kobj,
+		       struct kobj_uevent_env *env)
+{
+        struct gdlm_ls *ls = container_of(kobj, struct gdlm_ls, kobj);
+        add_uevent_var(env, "LOCKTABLE=%s:%s", ls->clustername, ls->fsname);
+        add_uevent_var(env, "LOCKPROTO=lock_dlm");
+        return 0;
+}
+
+static struct kset_uevent_ops gdlm_uevent_ops = {
+	.uevent = gdlm_uevent,
+};
+
+
 int gdlm_sysfs_init(void)
 {
-	gdlm_kset = kset_create_and_add("lock_dlm", NULL, kernel_kobj);
+	gdlm_kset = kset_create_and_add("lock_dlm", &gdlm_uevent_ops, kernel_kobj);
 	if (!gdlm_kset) {
 		printk(KERN_WARNING "%s: can not create kset\n", __func__);
 		return -ENOMEM;

fs/gfs2/main.c

@@ -19,7 +19,7 @@
 
 #include "gfs2.h"
 #include "incore.h"
-#include "ops_fstype.h"
+#include "super.h"
 #include "sys.h"
 #include "util.h"
 #include "glock.h"
@@ -30,6 +30,7 @@ static void gfs2_init_inode_once(void *foo)
 
 	inode_init_once(&ip->i_inode);
 	init_rwsem(&ip->i_rw_mutex);
+	INIT_LIST_HEAD(&ip->i_trunc_list);
 	ip->i_alloc = NULL;
 }
 
@@ -42,7 +43,7 @@ static void gfs2_init_glock_once(void *foo)
 	INIT_LIST_HEAD(&gl->gl_holders);
 	gl->gl_lvb = NULL;
 	atomic_set(&gl->gl_lvb_count, 0);
-	INIT_LIST_HEAD(&gl->gl_reclaim);
+	INIT_LIST_HEAD(&gl->gl_lru);
 	INIT_LIST_HEAD(&gl->gl_ail_list);
 	atomic_set(&gl->gl_ail_count, 0);
 }
@@ -93,6 +94,12 @@ static int __init init_gfs2_fs(void)
 	if (!gfs2_rgrpd_cachep)
 		goto fail;
 
+	gfs2_quotad_cachep = kmem_cache_create("gfs2_quotad",
+					       sizeof(struct gfs2_quota_data),
+					       0, 0, NULL);
+	if (!gfs2_quotad_cachep)
+		goto fail;
+
 	error = register_filesystem(&gfs2_fs_type);
 	if (error)
 		goto fail;
@@ -112,6 +119,9 @@ static int __init init_gfs2_fs(void)
 fail:
 	gfs2_glock_exit();
 
+	if (gfs2_quotad_cachep)
+		kmem_cache_destroy(gfs2_quotad_cachep);
+
 	if (gfs2_rgrpd_cachep)
 		kmem_cache_destroy(gfs2_rgrpd_cachep);
 
@@ -140,6 +150,7 @@ static void __exit exit_gfs2_fs(void)
 	unregister_filesystem(&gfs2_fs_type);
 	unregister_filesystem(&gfs2meta_fs_type);
 
+	kmem_cache_destroy(gfs2_quotad_cachep);
 	kmem_cache_destroy(gfs2_rgrpd_cachep);
 	kmem_cache_destroy(gfs2_bufdata_cachep);
 	kmem_cache_destroy(gfs2_inode_cachep);

fs/gfs2/mount.c

@@ -32,7 +32,6 @@ enum {
 	Opt_debug,
 	Opt_nodebug,
 	Opt_upgrade,
-	Opt_num_glockd,
 	Opt_acl,
 	Opt_noacl,
 	Opt_quota_off,
@@ -57,7 +56,6 @@ static const match_table_t tokens = {
 	{Opt_debug, "debug"},
 	{Opt_nodebug, "nodebug"},
 	{Opt_upgrade, "upgrade"},
-	{Opt_num_glockd, "num_glockd=%d"},
 	{Opt_acl, "acl"},
 	{Opt_noacl, "noacl"},
 	{Opt_quota_off, "quota=off"},
@@ -87,16 +85,7 @@ int gfs2_mount_args(struct gfs2_sbd *sdp, char *data_arg, int remount)
 	int error = 0;
 
 	if (!remount) {
-		/*  If someone preloaded options, use those instead  */
-		spin_lock(&gfs2_sys_margs_lock);
-		if (gfs2_sys_margs) {
-			data = gfs2_sys_margs;
-			gfs2_sys_margs = NULL;
-		}
-		spin_unlock(&gfs2_sys_margs_lock);
-
 		/*  Set some defaults  */
-		args->ar_num_glockd = GFS2_GLOCKD_DEFAULT;
 		args->ar_quota = GFS2_QUOTA_DEFAULT;
 		args->ar_data = GFS2_DATA_DEFAULT;
 	}
@@ -105,7 +94,7 @@ int gfs2_mount_args(struct gfs2_sbd *sdp, char *data_arg, int remount)
 	   process them */
 
 	for (options = data; (o = strsep(&options, ",")); ) {
-		int token, option;
+		int token;
 		substring_t tmp[MAX_OPT_ARGS];
 
 		if (!*o)
@@ -196,22 +185,6 @@ int gfs2_mount_args(struct gfs2_sbd *sdp, char *data_arg, int remount)
 				goto cant_remount;
 			args->ar_upgrade = 1;
 			break;
-		case Opt_num_glockd:
-			if ((error = match_int(&tmp[0], &option))) {
-				fs_info(sdp, "problem getting num_glockd\n");
-				goto out_error;
-			}
-
-			if (remount && option != args->ar_num_glockd)
-				goto cant_remount;
-			if (!option || option > GFS2_GLOCKD_MAX) {
-				fs_info(sdp, "0 < num_glockd <= %u  (not %u)\n",
-				        GFS2_GLOCKD_MAX, option);
-				error = -EINVAL;
-				goto out_error;
-			}
-			args->ar_num_glockd = option;
-			break;
 		case Opt_acl:
 			args->ar_posix_acl = 1;
 			sdp->sd_vfs->s_flags |= MS_POSIXACL;

fs/gfs2/ops_address.c

@@ -210,25 +210,23 @@ static int gfs2_jdata_writepage(struct page *page, struct writeback_control *wbc
 {
 	struct inode *inode = page->mapping->host;
 	struct gfs2_sbd *sdp = GFS2_SB(inode);
-	int error;
+	int ret;
 	int done_trans = 0;
 
-	error = gfs2_writepage_common(page, wbc);
-	if (error <= 0)
-		return error;
-
 	if (PageChecked(page)) {
 		if (wbc->sync_mode != WB_SYNC_ALL)
 			goto out_ignore;
-		error = gfs2_trans_begin(sdp, RES_DINODE + 1, 0);
-		if (error)
+		ret = gfs2_trans_begin(sdp, RES_DINODE + 1, 0);
+		if (ret)
 			goto out_ignore;
 		done_trans = 1;
 	}
-	error = __gfs2_jdata_writepage(page, wbc);
+	ret = gfs2_writepage_common(page, wbc);
+	if (ret > 0)
+		ret = __gfs2_jdata_writepage(page, wbc);
 	if (done_trans)
 		gfs2_trans_end(sdp);
-	return error;
+	return ret;
 
 out_ignore:
 	redirty_page_for_writepage(wbc, page);
@@ -453,8 +451,8 @@ static int stuffed_readpage(struct gfs2_inode *ip, struct page *page)
 
 	kaddr = kmap_atomic(page, KM_USER0);
 	memcpy(kaddr, dibh->b_data + sizeof(struct gfs2_dinode),
-	       ip->i_di.di_size);
-	memset(kaddr + ip->i_di.di_size, 0, PAGE_CACHE_SIZE - ip->i_di.di_size);
+	       ip->i_disksize);
+	memset(kaddr + ip->i_disksize, 0, PAGE_CACHE_SIZE - ip->i_disksize);
 	kunmap_atomic(kaddr, KM_USER0);
 	flush_dcache_page(page);
 	brelse(dibh);
@@ -627,7 +625,7 @@ static int gfs2_write_begin(struct file *file, struct address_space *mapping,
 {
 	struct gfs2_inode *ip = GFS2_I(mapping->host);
 	struct gfs2_sbd *sdp = GFS2_SB(mapping->host);
-	unsigned int data_blocks, ind_blocks, rblocks;
+	unsigned int data_blocks = 0, ind_blocks = 0, rblocks;
 	int alloc_required;
 	int error = 0;
 	struct gfs2_alloc *al;
@@ -641,11 +639,13 @@ static int gfs2_write_begin(struct file *file, struct address_space *mapping,
 	if (unlikely(error))
 		goto out_uninit;
 
-	gfs2_write_calc_reserv(ip, len, &data_blocks, &ind_blocks);
 	error = gfs2_write_alloc_required(ip, pos, len, &alloc_required);
 	if (error)
 		goto out_unlock;
 
+	if (alloc_required || gfs2_is_jdata(ip))
+		gfs2_write_calc_reserv(ip, len, &data_blocks, &ind_blocks);
+
 	if (alloc_required) {
 		al = gfs2_alloc_get(ip);
 		if (!al) {
@@ -782,7 +782,7 @@ static int gfs2_stuffed_write_end(struct inode *inode, struct buffer_head *dibh,
 
 	if (inode->i_size < to) {
 		i_size_write(inode, to);
-		ip->i_di.di_size = inode->i_size;
+		ip->i_disksize = inode->i_size;
 		di->di_size = cpu_to_be64(inode->i_size);
 		mark_inode_dirty(inode);
 	}
@@ -847,9 +847,9 @@ static int gfs2_write_end(struct file *file, struct address_space *mapping,
 
 	ret = generic_write_end(file, mapping, pos, len, copied, page, fsdata);
 
-	if (likely(ret >= 0) && (inode->i_size > ip->i_di.di_size)) {
+	if (likely(ret >= 0) && (inode->i_size > ip->i_disksize)) {
 		di = (struct gfs2_dinode *)dibh->b_data;
-		ip->i_di.di_size = inode->i_size;
+		ip->i_disksize = inode->i_size;
 		di->di_size = cpu_to_be64(inode->i_size);
 		mark_inode_dirty(inode);
 	}

fs/gfs2/ops_dentry.c

@@ -19,7 +19,7 @@
 #include "incore.h"
 #include "dir.h"
 #include "glock.h"
-#include "ops_dentry.h"
+#include "super.h"
 #include "util.h"
 #include "inode.h"
 

fs/gfs2/ops_dentry.h

-/*
- * Copyright (C) Sistina Software, Inc.  1997-2003 All rights reserved.
- * Copyright (C) 2004-2006 Red Hat, Inc.  All rights reserved.
- *
- * This copyrighted material is made available to anyone wishing to use,
- * modify, copy, or redistribute it subject to the terms and conditions
- * of the GNU General Public License version 2.
- */
-
-#ifndef __OPS_DENTRY_DOT_H__
-#define __OPS_DENTRY_DOT_H__
-
-#include <linux/dcache.h>
-
-extern struct dentry_operations gfs2_dops;
-
-#endif /* __OPS_DENTRY_DOT_H__ */

fs/gfs2/ops_export.c

@@ -22,8 +22,7 @@
 #include "glock.h"
 #include "glops.h"
 #include "inode.h"
-#include "ops_dentry.h"
-#include "ops_fstype.h"
+#include "super.h"
 #include "rgrp.h"
 #include "util.h"
 
@@ -214,7 +213,7 @@ static struct dentry *gfs2_get_dentry(struct super_block *sb,
 	}
 
 	error = -EIO;
-	if (GFS2_I(inode)->i_di.di_flags & GFS2_DIF_SYSTEM) {
+	if (GFS2_I(inode)->i_diskflags & GFS2_DIF_SYSTEM) {
 		iput(inode);
 		goto fail;
 	}

fs/gfs2/ops_file.c

@@ -39,7 +39,6 @@
 #include "util.h"
 #include "eaops.h"
 #include "ops_address.h"
-#include "ops_inode.h"
 
 /**
  * gfs2_llseek - seek to a location in a file
@@ -158,8 +157,8 @@ static int gfs2_get_flags(struct file *filp, u32 __user *ptr)
 	if (error)
 		return error;
 
-	fsflags = fsflags_cvt(gfs2_to_fsflags, ip->i_di.di_flags);
-	if (!S_ISDIR(inode->i_mode) && ip->i_di.di_flags & GFS2_DIF_JDATA)
+	fsflags = fsflags_cvt(gfs2_to_fsflags, ip->i_diskflags);
+	if (!S_ISDIR(inode->i_mode) && ip->i_diskflags & GFS2_DIF_JDATA)
 		fsflags |= FS_JOURNAL_DATA_FL;
 	if (put_user(fsflags, ptr))
 		error = -EFAULT;
@@ -172,17 +171,16 @@ static int gfs2_get_flags(struct file *filp, u32 __user *ptr)
 void gfs2_set_inode_flags(struct inode *inode)
 {
 	struct gfs2_inode *ip = GFS2_I(inode);
-	struct gfs2_dinode_host *di = &ip->i_di;
 	unsigned int flags = inode->i_flags;
 
 	flags &= ~(S_SYNC|S_APPEND|S_IMMUTABLE|S_NOATIME|S_DIRSYNC);
-	if (di->di_flags & GFS2_DIF_IMMUTABLE)
+	if (ip->i_diskflags & GFS2_DIF_IMMUTABLE)
 		flags |= S_IMMUTABLE;
-	if (di->di_flags & GFS2_DIF_APPENDONLY)
+	if (ip->i_diskflags & GFS2_DIF_APPENDONLY)
 		flags |= S_APPEND;
-	if (di->di_flags & GFS2_DIF_NOATIME)
+	if (ip->i_diskflags & GFS2_DIF_NOATIME)
 		flags |= S_NOATIME;
-	if (di->di_flags & GFS2_DIF_SYNC)
+	if (ip->i_diskflags & GFS2_DIF_SYNC)
 		flags |= S_SYNC;
 	inode->i_flags = flags;
 }
@@ -221,7 +219,7 @@ static int do_gfs2_set_flags(struct file *filp, u32 reqflags, u32 mask)
 	if (error)
 		goto out_drop_write;
 
-	flags = ip->i_di.di_flags;
+	flags = ip->i_diskflags;
 	new_flags = (flags & ~mask) | (reqflags & mask);
 	if ((new_flags ^ flags) == 0)
 		goto out;
@@ -260,7 +258,7 @@ static int do_gfs2_set_flags(struct file *filp, u32 reqflags, u32 mask)
 	if (error)
 		goto out_trans_end;
 	gfs2_trans_add_bh(ip->i_gl, bh, 1);
-	ip->i_di.di_flags = new_flags;
+	ip->i_diskflags = new_flags;
 	gfs2_dinode_out(ip, bh->b_data);
 	brelse(bh);
 	gfs2_set_inode_flags(inode);
@@ -357,7 +355,6 @@ static int gfs2_page_mkwrite(struct vm_area_struct *vma, struct page *page)
 		goto out;
 
 	set_bit(GIF_SW_PAGED, &ip->i_flags);
-	gfs2_write_calc_reserv(ip, PAGE_CACHE_SIZE, &data_blocks, &ind_blocks);
 	ret = gfs2_write_alloc_required(ip, pos, PAGE_CACHE_SIZE, &alloc_required);
 	if (ret || !alloc_required)
 		goto out_unlock;
@@ -369,6 +366,7 @@ static int gfs2_page_mkwrite(struct vm_area_struct *vma, struct page *page)
 	ret = gfs2_quota_lock_check(ip);
 	if (ret)
 		goto out_alloc_put;
+	gfs2_write_calc_reserv(ip, PAGE_CACHE_SIZE, &data_blocks, &ind_blocks);
 	al->al_requested = data_blocks + ind_blocks;
 	ret = gfs2_inplace_reserve(ip);
 	if (ret)
@@ -479,7 +477,7 @@ static int gfs2_open(struct inode *inode, struct file *file)
 			goto fail;
 
 		if (!(file->f_flags & O_LARGEFILE) &&
-		    ip->i_di.di_size > MAX_NON_LFS) {
+		    ip->i_disksize > MAX_NON_LFS) {
 			error = -EOVERFLOW;
 			goto fail_gunlock;
 		}

fs/gfs2/ops_fstype.c

@@ -22,20 +22,18 @@
 #include "gfs2.h"
 #include "incore.h"
 #include "bmap.h"
-#include "daemon.h"
 #include "glock.h"
 #include "glops.h"
 #include "inode.h"
 #include "mount.h"
-#include "ops_fstype.h"
-#include "ops_dentry.h"
-#include "ops_super.h"
 #include "recovery.h"
 #include "rgrp.h"
 #include "super.h"
 #include "sys.h"
 #include "util.h"
 #include "log.h"
+#include "quota.h"
+#include "dir.h"
 
 #define DO 0
 #define UNDO 1
@@ -58,12 +56,10 @@ static void gfs2_tune_init(struct gfs2_tune *gt)
 {
 	spin_lock_init(&gt->gt_spin);
 
-	gt->gt_demote_secs = 300;
 	gt->gt_incore_log_blocks = 1024;
 	gt->gt_log_flush_secs = 60;
 	gt->gt_recoverd_secs = 60;
 	gt->gt_logd_secs = 1;
-	gt->gt_quotad_secs = 5;
 	gt->gt_quota_simul_sync = 64;
 	gt->gt_quota_warn_period = 10;
 	gt->gt_quota_scale_num = 1;
@@ -91,10 +87,6 @@ static struct gfs2_sbd *init_sbd(struct super_block *sb)
 
 	gfs2_tune_init(&sdp->sd_tune);
 
-	INIT_LIST_HEAD(&sdp->sd_reclaim_list);
-	spin_lock_init(&sdp->sd_reclaim_lock);
-	init_waitqueue_head(&sdp->sd_reclaim_wq);
-
 	mutex_init(&sdp->sd_inum_mutex);
 	spin_lock_init(&sdp->sd_statfs_spin);
 
@@ -110,6 +102,9 @@ static struct gfs2_sbd *init_sbd(struct super_block *sb)
 	INIT_LIST_HEAD(&sdp->sd_quota_list);
 	spin_lock_init(&sdp->sd_quota_spin);
 	mutex_init(&sdp->sd_quota_mutex);
+	init_waitqueue_head(&sdp->sd_quota_wait);
+	INIT_LIST_HEAD(&sdp->sd_trunc_list);
+	spin_lock_init(&sdp->sd_trunc_lock);
 
 	spin_lock_init(&sdp->sd_log_lock);
 
@@ -443,24 +438,11 @@ static int init_names(struct gfs2_sbd *sdp, int silent)
 static int init_locking(struct gfs2_sbd *sdp, struct gfs2_holder *mount_gh,
 			int undo)
 {
-	struct task_struct *p;
 	int error = 0;
 
 	if (undo)
 		goto fail_trans;
 
-	for (sdp->sd_glockd_num = 0;
-	     sdp->sd_glockd_num < sdp->sd_args.ar_num_glockd;
-	     sdp->sd_glockd_num++) {
-		p = kthread_run(gfs2_glockd, sdp, "gfs2_glockd");
-		error = IS_ERR(p);
-		if (error) {
-			fs_err(sdp, "can't start glockd thread: %d\n", error);
-			goto fail;
-		}
-		sdp->sd_glockd_process[sdp->sd_glockd_num] = p;
-	}
-
 	error = gfs2_glock_nq_num(sdp,
 				  GFS2_MOUNT_LOCK, &gfs2_nondisk_glops,
 				  LM_ST_EXCLUSIVE, LM_FLAG_NOEXP | GL_NOCACHE,
@@ -493,7 +475,6 @@ static int init_locking(struct gfs2_sbd *sdp, struct gfs2_holder *mount_gh,
 		fs_err(sdp, "can't create transaction glock: %d\n", error);
 		goto fail_rename;
 	}
-	set_bit(GLF_STICKY, &sdp->sd_trans_gl->gl_flags);
 
 	return 0;
 
@@ -506,9 +487,6 @@ static int init_locking(struct gfs2_sbd *sdp, struct gfs2_holder *mount_gh,
 fail_mount:
 	gfs2_glock_dq_uninit(mount_gh);
 fail:
-	while (sdp->sd_glockd_num--)
-		kthread_stop(sdp->sd_glockd_process[sdp->sd_glockd_num]);
-
 	return error;
 }
 
@@ -620,7 +598,7 @@ static int map_journal_extents(struct gfs2_sbd *sdp)
 
 	prev_db = 0;
 
-	for (lb = 0; lb < ip->i_di.di_size >> sdp->sd_sb.sb_bsize_shift; lb++) {
+	for (lb = 0; lb < ip->i_disksize >> sdp->sd_sb.sb_bsize_shift; lb++) {
 		bh.b_state = 0;
 		bh.b_blocknr = 0;
 		bh.b_size = 1 << ip->i_inode.i_blkbits;
@@ -661,6 +639,72 @@ static void gfs2_lm_others_may_mount(struct gfs2_sbd *sdp)
 					sdp->sd_lockstruct.ls_lockspace);
 }
 
+/**
+ * gfs2_jindex_hold - Grab a lock on the jindex
+ * @sdp: The GFS2 superblock
+ * @ji_gh: the holder for the jindex glock
+ *
+ * Returns: errno
+ */
+
+static int gfs2_jindex_hold(struct gfs2_sbd *sdp, struct gfs2_holder *ji_gh)
+{
+	struct gfs2_inode *dip = GFS2_I(sdp->sd_jindex);
+	struct qstr name;
+	char buf[20];
+	struct gfs2_jdesc *jd;
+	int error;
+
+	name.name = buf;
+
+	mutex_lock(&sdp->sd_jindex_mutex);
+
+	for (;;) {
+		error = gfs2_glock_nq_init(dip->i_gl, LM_ST_SHARED, 0, ji_gh);
+		if (error)
+			break;
+
+		name.len = sprintf(buf, "journal%u", sdp->sd_journals);
+		name.hash = gfs2_disk_hash(name.name, name.len);
+
+		error = gfs2_dir_check(sdp->sd_jindex, &name, NULL);
+		if (error == -ENOENT) {
+			error = 0;
+			break;
+		}
+
+		gfs2_glock_dq_uninit(ji_gh);
+
+		if (error)
+			break;
+
+		error = -ENOMEM;
+		jd = kzalloc(sizeof(struct gfs2_jdesc), GFP_KERNEL);
+		if (!jd)
+			break;
+
+		INIT_LIST_HEAD(&jd->extent_list);
+		jd->jd_inode = gfs2_lookupi(sdp->sd_jindex, &name, 1);
+		if (!jd->jd_inode || IS_ERR(jd->jd_inode)) {
+			if (!jd->jd_inode)
+				error = -ENOENT;
+			else
+				error = PTR_ERR(jd->jd_inode);
+			kfree(jd);
+			break;
+		}
+
+		spin_lock(&sdp->sd_jindex_spin);
+		jd->jd_jid = sdp->sd_journals++;
+		list_add_tail(&jd->jd_list, &sdp->sd_jindex_list);
+		spin_unlock(&sdp->sd_jindex_spin);
+	}
+
+	mutex_unlock(&sdp->sd_jindex_mutex);
+
+	return error;
+}
+
 static int init_journal(struct gfs2_sbd *sdp, int undo)
 {
 	struct inode *master = sdp->sd_master_dir->d_inode;
@@ -681,7 +725,6 @@ static int init_journal(struct gfs2_sbd *sdp, int undo)
 		return PTR_ERR(sdp->sd_jindex);
 	}
 	ip = GFS2_I(sdp->sd_jindex);
-	set_bit(GLF_STICKY, &ip->i_gl->gl_flags);
 
 	/* Load in the journal index special file */
 
@@ -832,7 +875,6 @@ static int init_inodes(struct gfs2_sbd *sdp, int undo)
 		goto fail_statfs;
 	}
 	ip = GFS2_I(sdp->sd_rindex);
-	set_bit(GLF_STICKY, &ip->i_gl->gl_flags);
 	sdp->sd_rindex_uptodate = 0;
 
 	/* Read in the quota inode */
@@ -973,9 +1015,6 @@ static int init_threads(struct gfs2_sbd *sdp, int undo)
 	}
 	sdp->sd_logd_process = p;
 
-	sdp->sd_statfs_sync_time = jiffies;
-	sdp->sd_quota_sync_time = jiffies;
-
 	p = kthread_run(gfs2_quotad, sdp, "gfs2_quotad");
 	error = IS_ERR(p);
 	if (error) {
@@ -1224,17 +1263,21 @@ static int gfs2_get_sb_meta(struct file_system_type *fs_type, int flags,
 static void gfs2_kill_sb(struct super_block *sb)
 {
 	struct gfs2_sbd *sdp = sb->s_fs_info;
-	if (sdp) {
-		gfs2_meta_syncfs(sdp);
-		dput(sdp->sd_root_dir);
-		dput(sdp->sd_master_dir);
-		sdp->sd_root_dir = NULL;
-		sdp->sd_master_dir = NULL;
+
+	if (sdp == NULL) {
+		kill_block_super(sb);
+		return;
 	}
+
+	gfs2_meta_syncfs(sdp);
+	dput(sdp->sd_root_dir);
+	dput(sdp->sd_master_dir);
+	sdp->sd_root_dir = NULL;
+	sdp->sd_master_dir = NULL;
 	shrink_dcache_sb(sb);
 	kill_block_super(sb);
-	if (sdp)
-		gfs2_delete_debugfs_file(sdp);
+	gfs2_delete_debugfs_file(sdp);
+	kfree(sdp);
 }
 
 struct file_system_type gfs2_fs_type = {

fs/gfs2/ops_fstype.h

-/*
- * Copyright (C) Sistina Software, Inc.  1997-2003 All rights reserved.
- * Copyright (C) 2004-2006 Red Hat, Inc.  All rights reserved.
- *
- * This copyrighted material is made available to anyone wishing to use,
- * modify, copy, or redistribute it subject to the terms and conditions
- * of the GNU General Public License version 2.
- */
-
-#ifndef __OPS_FSTYPE_DOT_H__
-#define __OPS_FSTYPE_DOT_H__
-
-#include <linux/fs.h>
-
-extern struct file_system_type gfs2_fs_type;
-extern struct file_system_type gfs2meta_fs_type;
-extern const struct export_operations gfs2_export_ops;
-
-#endif /* __OPS_FSTYPE_DOT_H__ */

fs/gfs2/ops_inode.c

@@ -19,6 +19,7 @@
 #include <linux/gfs2_ondisk.h>
 #include <linux/crc32.h>
 #include <linux/lm_interface.h>
+#include <linux/fiemap.h>
 #include <asm/uaccess.h>
 
 #include "gfs2.h"
@@ -31,12 +32,11 @@
 #include "glock.h"
 #include "inode.h"
 #include "meta_io.h"
-#include "ops_dentry.h"
-#include "ops_inode.h"
 #include "quota.h"
 #include "rgrp.h"
 #include "trans.h"
 #include "util.h"
+#include "super.h"
 
 /**
  * gfs2_create - Create a file
@@ -185,7 +185,7 @@ static int gfs2_link(struct dentry *old_dentry, struct inode *dir,
 	if (!dip->i_inode.i_nlink)
 		goto out_gunlock;
 	error = -EFBIG;
-	if (dip->i_di.di_entries == (u32)-1)
+	if (dip->i_entries == (u32)-1)
 		goto out_gunlock;
 	error = -EPERM;
 	if (IS_IMMUTABLE(inode) || IS_APPEND(inode))
@@ -371,7 +371,7 @@ static int gfs2_symlink(struct inode *dir, struct dentry *dentry,
 
 	ip = ghs[1].gh_gl->gl_object;
 
-	ip->i_di.di_size = size;
+	ip->i_disksize = size;
 
 	error = gfs2_meta_inode_buffer(ip, &dibh);
 
@@ -425,9 +425,9 @@ static int gfs2_mkdir(struct inode *dir, struct dentry *dentry, int mode)
 	ip = ghs[1].gh_gl->gl_object;
 
 	ip->i_inode.i_nlink = 2;
-	ip->i_di.di_size = sdp->sd_sb.sb_bsize - sizeof(struct gfs2_dinode);
-	ip->i_di.di_flags |= GFS2_DIF_JDATA;
-	ip->i_di.di_entries = 2;
+	ip->i_disksize = sdp->sd_sb.sb_bsize - sizeof(struct gfs2_dinode);
+	ip->i_diskflags |= GFS2_DIF_JDATA;
+	ip->i_entries = 2;
 
 	error = gfs2_meta_inode_buffer(ip, &dibh);
 
@@ -517,13 +517,13 @@ static int gfs2_rmdir(struct inode *dir, struct dentry *dentry)
 	if (error)
 		goto out_gunlock;
 
-	if (ip->i_di.di_entries < 2) {
+	if (ip->i_entries < 2) {
 		if (gfs2_consist_inode(ip))
 			gfs2_dinode_print(ip);
 		error = -EIO;
 		goto out_gunlock;
 	}
-	if (ip->i_di.di_entries > 2) {
+	if (ip->i_entries > 2) {
 		error = -ENOTEMPTY;
 		goto out_gunlock;
 	}
@@ -726,13 +726,13 @@ static int gfs2_rename(struct inode *odir, struct dentry *odentry,
 			goto out_gunlock;
 
 		if (S_ISDIR(nip->i_inode.i_mode)) {
-			if (nip->i_di.di_entries < 2) {
+			if (nip->i_entries < 2) {
 				if (gfs2_consist_inode(nip))
 					gfs2_dinode_print(nip);
 				error = -EIO;
 				goto out_gunlock;
 			}
-			if (nip->i_di.di_entries > 2) {
+			if (nip->i_entries > 2) {
 				error = -ENOTEMPTY;
 				goto out_gunlock;
 			}
@@ -758,7 +758,7 @@ static int gfs2_rename(struct inode *odir, struct dentry *odentry,
 				error = -EINVAL;
 				goto out_gunlock;
 			}
-			if (ndip->i_di.di_entries == (u32)-1) {
+			if (ndip->i_entries == (u32)-1) {
 				error = -EFBIG;
 				goto out_gunlock;
 			}
@@ -990,7 +990,7 @@ static int setattr_size(struct inode *inode, struct iattr *attr)
 	struct gfs2_sbd *sdp = GFS2_SB(inode);
 	int error;
 
-	if (attr->ia_size != ip->i_di.di_size) {
+	if (attr->ia_size != ip->i_disksize) {
 		error = gfs2_trans_begin(sdp, 0, sdp->sd_jdesc->jd_blocks);
 		if (error)
 			return error;
@@ -1001,8 +1001,8 @@ static int setattr_size(struct inode *inode, struct iattr *attr)
 	}
 
 	error = gfs2_truncatei(ip, attr->ia_size);
-	if (error && (inode->i_size != ip->i_di.di_size))
-		i_size_write(inode, ip->i_di.di_size);
+	if (error && (inode->i_size != ip->i_disksize))
+		i_size_write(inode, ip->i_disksize);
 
 	return error;
 }
@@ -1212,6 +1212,48 @@ static int gfs2_removexattr(struct dentry *dentry, const char *name)
 	return gfs2_ea_remove(GFS2_I(dentry->d_inode), &er);
 }
 
+static int gfs2_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
+		       u64 start, u64 len)
+{
+	struct gfs2_inode *ip = GFS2_I(inode);
+	struct gfs2_holder gh;
+	int ret;
+
+	ret = fiemap_check_flags(fieinfo, FIEMAP_FLAG_SYNC);
+	if (ret)
+		return ret;
+
+	mutex_lock(&inode->i_mutex);
+
+	ret = gfs2_glock_nq_init(ip->i_gl, LM_ST_SHARED, 0, &gh);
+	if (ret)
+		goto out;
+
+	if (gfs2_is_stuffed(ip)) {
+		u64 phys = ip->i_no_addr << inode->i_blkbits;
+		u64 size = i_size_read(inode);
+		u32 flags = FIEMAP_EXTENT_LAST|FIEMAP_EXTENT_NOT_ALIGNED|
+			    FIEMAP_EXTENT_DATA_INLINE;
+		phys += sizeof(struct gfs2_dinode);
+		phys += start;
+		if (start + len > size)
+			len = size - start;
+		if (start < size)
+			ret = fiemap_fill_next_extent(fieinfo, start, phys,
+						      len, flags);
+		if (ret == 1)
+			ret = 0;
+	} else {
+		ret = __generic_block_fiemap(inode, fieinfo, start, len,
+					     gfs2_block_map);
+	}
+
+	gfs2_glock_dq_uninit(&gh);
+out:
+	mutex_unlock(&inode->i_mutex);
+	return ret;
+}
+
 const struct inode_operations gfs2_file_iops = {
 	.permission = gfs2_permission,
 	.setattr = gfs2_setattr,
@@ -1220,6 +1262,7 @@ const struct inode_operations gfs2_file_iops = {
 	.getxattr = gfs2_getxattr,
 	.listxattr = gfs2_listxattr,
 	.removexattr = gfs2_removexattr,
+	.fiemap = gfs2_fiemap,
 };
 
 const struct inode_operations gfs2_dir_iops = {
@@ -1239,6 +1282,7 @@ const struct inode_operations gfs2_dir_iops = {
 	.getxattr = gfs2_getxattr,
 	.listxattr = gfs2_listxattr,
 	.removexattr = gfs2_removexattr,
+	.fiemap = gfs2_fiemap,
 };
 
 const struct inode_operations gfs2_symlink_iops = {
@@ -1251,5 +1295,6 @@ const struct inode_operations gfs2_symlink_iops = {
 	.getxattr = gfs2_getxattr,
 	.listxattr = gfs2_listxattr,
 	.removexattr = gfs2_removexattr,
+	.fiemap = gfs2_fiemap,
 };
 

fs/gfs2/ops_inode.h

-/*
- * Copyright (C) Sistina Software, Inc.  1997-2003 All rights reserved.
- * Copyright (C) 2004-2006 Red Hat, Inc.  All rights reserved.
- *
- * This copyrighted material is made available to anyone wishing to use,
- * modify, copy, or redistribute it subject to the terms and conditions
- * of the GNU General Public License version 2.
- */
-
-#ifndef __OPS_INODE_DOT_H__
-#define __OPS_INODE_DOT_H__
-
-#include <linux/fs.h>
-
-extern const struct inode_operations gfs2_file_iops;
-extern const struct inode_operations gfs2_dir_iops;
-extern const struct inode_operations gfs2_symlink_iops;
-extern const struct file_operations gfs2_file_fops;
-extern const struct file_operations gfs2_dir_fops;
-extern const struct file_operations gfs2_file_fops_nolock;
-extern const struct file_operations gfs2_dir_fops_nolock;
-
-extern void gfs2_set_inode_flags(struct inode *inode);
-
-#endif /* __OPS_INODE_DOT_H__ */

fs/gfs2/ops_super.c

@@ -28,7 +28,6 @@
 #include "inode.h"
 #include "log.h"
 #include "mount.h"
-#include "ops_super.h"
 #include "quota.h"
 #include "recovery.h"
 #include "rgrp.h"
@@ -143,8 +142,6 @@ static void gfs2_put_super(struct super_block *sb)
 	kthread_stop(sdp->sd_quotad_process);
 	kthread_stop(sdp->sd_logd_process);
 	kthread_stop(sdp->sd_recoverd_process);
-	while (sdp->sd_glockd_num--)
-		kthread_stop(sdp->sd_glockd_process[sdp->sd_glockd_num]);
 
 	if (!(sb->s_flags & MS_RDONLY)) {
 		error = gfs2_make_fs_ro(sdp);
@@ -185,7 +182,6 @@ static void gfs2_put_super(struct super_block *sb)
 
 	/*  At this point, we're through participating in the lockspace  */
 	gfs2_sys_fs_del(sdp);
-	kfree(sdp);
 }
 
 /**
@@ -259,6 +255,137 @@ static void gfs2_unlockfs(struct super_block *sb)
 	gfs2_unfreeze_fs(sb->s_fs_info);
 }
 
+/**
+ * statfs_fill - fill in the sg for a given RG
+ * @rgd: the RG
+ * @sc: the sc structure
+ *
+ * Returns: 0 on success, -ESTALE if the LVB is invalid
+ */
+
+static int statfs_slow_fill(struct gfs2_rgrpd *rgd,
+			    struct gfs2_statfs_change_host *sc)
+{
+	gfs2_rgrp_verify(rgd);
+	sc->sc_total += rgd->rd_data;
+	sc->sc_free += rgd->rd_free;
+	sc->sc_dinodes += rgd->rd_dinodes;
+	return 0;
+}
+
+/**
+ * gfs2_statfs_slow - Stat a filesystem using asynchronous locking
+ * @sdp: the filesystem
+ * @sc: the sc info that will be returned
+ *
+ * Any error (other than a signal) will cause this routine to fall back
+ * to the synchronous version.
+ *
+ * FIXME: This really shouldn't busy wait like this.
+ *
+ * Returns: errno
+ */
+
+static int gfs2_statfs_slow(struct gfs2_sbd *sdp, struct gfs2_statfs_change_host *sc)
+{
+	struct gfs2_holder ri_gh;
+	struct gfs2_rgrpd *rgd_next;
+	struct gfs2_holder *gha, *gh;
+	unsigned int slots = 64;
+	unsigned int x;
+	int done;
+	int error = 0, err;
+
+	memset(sc, 0, sizeof(struct gfs2_statfs_change_host));
+	gha = kcalloc(slots, sizeof(struct gfs2_holder), GFP_KERNEL);
+	if (!gha)
+		return -ENOMEM;
+
+	error = gfs2_rindex_hold(sdp, &ri_gh);
+	if (error)
+		goto out;
+
+	rgd_next = gfs2_rgrpd_get_first(sdp);
+
+	for (;;) {
+		done = 1;
+
+		for (x = 0; x < slots; x++) {
+			gh = gha + x;
+
+			if (gh->gh_gl && gfs2_glock_poll(gh)) {
+				err = gfs2_glock_wait(gh);
+				if (err) {
+					gfs2_holder_uninit(gh);
+					error = err;
+				} else {
+					if (!error)
+						error = statfs_slow_fill(
+							gh->gh_gl->gl_object, sc);
+					gfs2_glock_dq_uninit(gh);
+				}
+			}
+
+			if (gh->gh_gl)
+				done = 0;
+			else if (rgd_next && !error) {
+				error = gfs2_glock_nq_init(rgd_next->rd_gl,
+							   LM_ST_SHARED,
+							   GL_ASYNC,
+							   gh);
+				rgd_next = gfs2_rgrpd_get_next(rgd_next);
+				done = 0;
+			}
+
+			if (signal_pending(current))
+				error = -ERESTARTSYS;
+		}
+
+		if (done)
+			break;
+
+		yield();
+	}
+
+	gfs2_glock_dq_uninit(&ri_gh);
+
+out:
+	kfree(gha);
+	return error;
+}
+
+/**
+ * gfs2_statfs_i - Do a statfs
+ * @sdp: the filesystem
+ * @sg: the sg structure
+ *
+ * Returns: errno
+ */
+
+static int gfs2_statfs_i(struct gfs2_sbd *sdp, struct gfs2_statfs_change_host *sc)
+{
+	struct gfs2_statfs_change_host *m_sc = &sdp->sd_statfs_master;
+	struct gfs2_statfs_change_host *l_sc = &sdp->sd_statfs_local;
+
+	spin_lock(&sdp->sd_statfs_spin);
+
+	*sc = *m_sc;
+	sc->sc_total += l_sc->sc_total;
+	sc->sc_free += l_sc->sc_free;
+	sc->sc_dinodes += l_sc->sc_dinodes;
+
+	spin_unlock(&sdp->sd_statfs_spin);
+
+	if (sc->sc_free < 0)
+		sc->sc_free = 0;
+	if (sc->sc_free > sc->sc_total)
+		sc->sc_free = sc->sc_total;
+	if (sc->sc_dinodes < 0)
+		sc->sc_dinodes = 0;
+
+	return 0;
+}
+
 /**
  * gfs2_statfs - Gather and return stats about the filesystem
  * @sb: The superblock
@@ -370,7 +497,6 @@ static void gfs2_clear_inode(struct inode *inode)
 	 */
 	if (test_bit(GIF_USER, &ip->i_flags)) {
 		ip->i_gl->gl_object = NULL;
-		gfs2_glock_schedule_for_reclaim(ip->i_gl);
 		gfs2_glock_put(ip->i_gl);
 		ip->i_gl = NULL;
 		if (ip->i_iopen_gh.gh_gl) {
@@ -423,8 +549,6 @@ static int gfs2_show_options(struct seq_file *s, struct vfsmount *mnt)
 		seq_printf(s, ",debug");
 	if (args->ar_upgrade)
 		seq_printf(s, ",upgrade");
-	if (args->ar_num_glockd != GFS2_GLOCKD_DEFAULT)
-		seq_printf(s, ",num_glockd=%u", args->ar_num_glockd);
 	if (args->ar_posix_acl)
 		seq_printf(s, ",acl");
 	if (args->ar_quota != GFS2_QUOTA_DEFAULT) {
@@ -494,16 +618,16 @@ static void gfs2_delete_inode(struct inode *inode)
 	gfs2_holder_reinit(LM_ST_EXCLUSIVE, LM_FLAG_TRY_1CB | GL_NOCACHE, &ip->i_iopen_gh);
 	error = gfs2_glock_nq(&ip->i_iopen_gh);
 	if (error)
-		goto out_uninit;
+		goto out_truncate;
 
 	if (S_ISDIR(inode->i_mode) &&
-	    (ip->i_di.di_flags & GFS2_DIF_EXHASH)) {
+	    (ip->i_diskflags & GFS2_DIF_EXHASH)) {
 		error = gfs2_dir_exhash_dealloc(ip);
 		if (error)
 			goto out_unlock;
 	}
 
-	if (ip->i_di.di_eattr) {
+	if (ip->i_eattr) {
 		error = gfs2_ea_dealloc(ip);
 		if (error)
 			goto out_unlock;
@@ -519,6 +643,7 @@ static void gfs2_delete_inode(struct inode *inode)
 	if (error)
 		goto out_unlock;
 
+out_truncate:
 	error = gfs2_trans_begin(sdp, 0, sdp->sd_jdesc->jd_blocks);
 	if (error)
 		goto out_unlock;
@@ -527,8 +652,8 @@ static void gfs2_delete_inode(struct inode *inode)
 	gfs2_trans_end(sdp);
 
 out_unlock:
-	gfs2_glock_dq(&ip->i_iopen_gh);
-out_uninit:
+	if (test_bit(HIF_HOLDER, &ip->i_iopen_gh.gh_iflags))
+		gfs2_glock_dq(&ip->i_iopen_gh);
 	gfs2_holder_uninit(&ip->i_iopen_gh);
 	gfs2_glock_dq_uninit(&gh);
 	if (error && error != GLR_TRYFAILED)

fs/gfs2/ops_super.h

-/*
- * Copyright (C) Sistina Software, Inc.  1997-2003 All rights reserved.
- * Copyright (C) 2004-2006 Red Hat, Inc.  All rights reserved.
- *
- * This copyrighted material is made available to anyone wishing to use,
- * modify, copy, or redistribute it subject to the terms and conditions
- * of the GNU General Public License version 2.
- */
-
-#ifndef __OPS_SUPER_DOT_H__
-#define __OPS_SUPER_DOT_H__
-
-#include <linux/fs.h>
-
-extern const struct super_operations gfs2_super_ops;
-
-#endif /* __OPS_SUPER_DOT_H__ */

fs/gfs2/quota.c

@@ -46,6 +46,8 @@
 #include <linux/bio.h>
 #include <linux/gfs2_ondisk.h>
 #include <linux/lm_interface.h>
+#include <linux/kthread.h>
+#include <linux/freezer.h>
 
 #include "gfs2.h"
 #include "incore.h"
@@ -94,7 +96,7 @@ static int qd_alloc(struct gfs2_sbd *sdp, int user, u32 id,
 	struct gfs2_quota_data *qd;
 	int error;
 
-	qd = kzalloc(sizeof(struct gfs2_quota_data), GFP_NOFS);
+	qd = kmem_cache_zalloc(gfs2_quotad_cachep, GFP_NOFS);
 	if (!qd)
 		return -ENOMEM;
 
@@ -119,7 +121,7 @@ static int qd_alloc(struct gfs2_sbd *sdp, int user, u32 id,
 	return 0;
 
 fail:
-	kfree(qd);
+	kmem_cache_free(gfs2_quotad_cachep, qd);
 	return error;
 }
 
@@ -158,7 +160,7 @@ static int qd_get(struct gfs2_sbd *sdp, int user, u32 id, int create,
 		if (qd || !create) {
 			if (new_qd) {
 				gfs2_lvb_unhold(new_qd->qd_gl);
-				kfree(new_qd);
+				kmem_cache_free(gfs2_quotad_cachep, new_qd);
 			}
 			*qdp = qd;
 			return 0;
@@ -1013,7 +1015,7 @@ void gfs2_quota_change(struct gfs2_inode *ip, s64 change,
 
 	if (gfs2_assert_warn(GFS2_SB(&ip->i_inode), change))
 		return;
-	if (ip->i_di.di_flags & GFS2_DIF_SYSTEM)
+	if (ip->i_diskflags & GFS2_DIF_SYSTEM)
 		return;
 
 	for (x = 0; x < al->al_qd_num; x++) {
@@ -1100,15 +1102,15 @@ static void gfs2_quota_change_in(struct gfs2_quota_change_host *qc, const void *
 int gfs2_quota_init(struct gfs2_sbd *sdp)
 {
 	struct gfs2_inode *ip = GFS2_I(sdp->sd_qc_inode);
-	unsigned int blocks = ip->i_di.di_size >> sdp->sd_sb.sb_bsize_shift;
+	unsigned int blocks = ip->i_disksize >> sdp->sd_sb.sb_bsize_shift;
 	unsigned int x, slot = 0;
 	unsigned int found = 0;
 	u64 dblock;
 	u32 extlen = 0;
 	int error;
 
-	if (!ip->i_di.di_size || ip->i_di.di_size > (64 << 20) ||
-	    ip->i_di.di_size & (sdp->sd_sb.sb_bsize - 1)) {
+	if (!ip->i_disksize || ip->i_disksize > (64 << 20) ||
+	    ip->i_disksize & (sdp->sd_sb.sb_bsize - 1)) {
 		gfs2_consist_inode(ip);
 		return -EIO;
 	}
@@ -1195,7 +1197,7 @@ int gfs2_quota_init(struct gfs2_sbd *sdp)
 	return error;
 }
 
-void gfs2_quota_scan(struct gfs2_sbd *sdp)
+static void gfs2_quota_scan(struct gfs2_sbd *sdp)
 {
 	struct gfs2_quota_data *qd, *safe;
 	LIST_HEAD(dead);
@@ -1222,7 +1224,7 @@ void gfs2_quota_scan(struct gfs2_sbd *sdp)
 		gfs2_assert_warn(sdp, !qd->qd_bh_count);
 
 		gfs2_lvb_unhold(qd->qd_gl);
-		kfree(qd);
+		kmem_cache_free(gfs2_quotad_cachep, qd);
 	}
 }
 
@@ -1257,7 +1259,7 @@ void gfs2_quota_cleanup(struct gfs2_sbd *sdp)
 		gfs2_assert_warn(sdp, !qd->qd_bh_count);
 
 		gfs2_lvb_unhold(qd->qd_gl);
-		kfree(qd);
+		kmem_cache_free(gfs2_quotad_cachep, qd);
 
 		spin_lock(&sdp->sd_quota_spin);
 	}
@@ -1272,3 +1274,94 @@ void gfs2_quota_cleanup(struct gfs2_sbd *sdp)
 	}
 }
 
+static void quotad_error(struct gfs2_sbd *sdp, const char *msg, int error)
+{
+	if (error == 0 || error == -EROFS)
+		return;
+	if (!test_bit(SDF_SHUTDOWN, &sdp->sd_flags))
+		fs_err(sdp, "gfs2_quotad: %s error %d\n", msg, error);
+}
+
+static void quotad_check_timeo(struct gfs2_sbd *sdp, const char *msg,
+			       int (*fxn)(struct gfs2_sbd *sdp),
+			       unsigned long t, unsigned long *timeo,
+			       unsigned int *new_timeo)
+{
+	if (t >= *timeo) {
+		int error = fxn(sdp);
+		quotad_error(sdp, msg, error);
+		*timeo = gfs2_tune_get_i(&sdp->sd_tune, new_timeo) * HZ;
+	} else {
+		*timeo -= t;
+	}
+}
+
+static void quotad_check_trunc_list(struct gfs2_sbd *sdp)
+{
+	struct gfs2_inode *ip;
+
+	while(1) {
+		ip = NULL;
+		spin_lock(&sdp->sd_trunc_lock);
+		if (!list_empty(&sdp->sd_trunc_list)) {
+			ip = list_entry(sdp->sd_trunc_list.next,
+					struct gfs2_inode, i_trunc_list);
+			list_del_init(&ip->i_trunc_list);
+		}
+		spin_unlock(&sdp->sd_trunc_lock);
+		if (ip == NULL)
+			return;
+		gfs2_glock_finish_truncate(ip);
+	}
+}
+
+/**
+ * gfs2_quotad - Write cached quota changes into the quota file
+ * @sdp: Pointer to GFS2 superblock
+ *
+ */
+
+int gfs2_quotad(void *data)
+{
+	struct gfs2_sbd *sdp = data;
+	struct gfs2_tune *tune = &sdp->sd_tune;
+	unsigned long statfs_timeo = 0;
+	unsigned long quotad_timeo = 0;
+	unsigned long t = 0;
+	DEFINE_WAIT(wait);
+	int empty;
+
+	while (!kthread_should_stop()) {
+
+		/* Update the master statfs file */
+		quotad_check_timeo(sdp, "statfs", gfs2_statfs_sync, t,
+				   &statfs_timeo, &tune->gt_statfs_quantum);
+
+		/* Update quota file */
+		quotad_check_timeo(sdp, "sync", gfs2_quota_sync, t,
+				   &quotad_timeo, &tune->gt_quota_quantum);
+
+		/* FIXME: This should be turned into a shrinker */
+		gfs2_quota_scan(sdp);
+
+		/* Check for & recover partially truncated inodes */
+		quotad_check_trunc_list(sdp);
+
+		if (freezing(current))
+			refrigerator();
+		t = min(quotad_timeo, statfs_timeo);
+
+		prepare_to_wait(&sdp->sd_quota_wait, &wait, TASK_UNINTERRUPTIBLE);
+		spin_lock(&sdp->sd_trunc_lock);
+		empty = list_empty(&sdp->sd_trunc_list);
+		spin_unlock(&sdp->sd_trunc_lock);
+		if (empty)
+			t -= schedule_timeout(t);
+		else
+			t = 0;
+		finish_wait(&sdp->sd_quota_wait, &wait);
+	}
+
+	return 0;
+}
+

fs/gfs2/quota.h

@@ -15,22 +15,22 @@ struct gfs2_sbd;
 
 #define NO_QUOTA_CHANGE ((u32)-1)
 
-int gfs2_quota_hold(struct gfs2_inode *ip, u32 uid, u32 gid);
-void gfs2_quota_unhold(struct gfs2_inode *ip);
+extern int gfs2_quota_hold(struct gfs2_inode *ip, u32 uid, u32 gid);
+extern void gfs2_quota_unhold(struct gfs2_inode *ip);
 
-int gfs2_quota_lock(struct gfs2_inode *ip, u32 uid, u32 gid);
-void gfs2_quota_unlock(struct gfs2_inode *ip);
+extern int gfs2_quota_lock(struct gfs2_inode *ip, u32 uid, u32 gid);
+extern void gfs2_quota_unlock(struct gfs2_inode *ip);
 
-int gfs2_quota_check(struct gfs2_inode *ip, u32 uid, u32 gid);
-void gfs2_quota_change(struct gfs2_inode *ip, s64 change,
-		       u32 uid, u32 gid);
+extern int gfs2_quota_check(struct gfs2_inode *ip, u32 uid, u32 gid);
+extern void gfs2_quota_change(struct gfs2_inode *ip, s64 change,
+			      u32 uid, u32 gid);
 
-int gfs2_quota_sync(struct gfs2_sbd *sdp);
-int gfs2_quota_refresh(struct gfs2_sbd *sdp, int user, u32 id);
+extern int gfs2_quota_sync(struct gfs2_sbd *sdp);
+extern int gfs2_quota_refresh(struct gfs2_sbd *sdp, int user, u32 id);
 
-int gfs2_quota_init(struct gfs2_sbd *sdp);
-void gfs2_quota_scan(struct gfs2_sbd *sdp);
-void gfs2_quota_cleanup(struct gfs2_sbd *sdp);
+extern int gfs2_quota_init(struct gfs2_sbd *sdp);
+extern void gfs2_quota_cleanup(struct gfs2_sbd *sdp);
+extern int gfs2_quotad(void *data);
 
 static inline int gfs2_quota_lock_check(struct gfs2_inode *ip)
 {

fs/gfs2/recovery.c

@@ -14,6 +14,8 @@
 #include <linux/gfs2_ondisk.h>
 #include <linux/crc32.h>
 #include <linux/lm_interface.h>
+#include <linux/kthread.h>
+#include <linux/freezer.h>
 
 #include "gfs2.h"
 #include "incore.h"
@@ -583,13 +585,35 @@ int gfs2_recover_journal(struct gfs2_jdesc *jd)
 	return error;
 }
 
+static struct gfs2_jdesc *gfs2_jdesc_find_dirty(struct gfs2_sbd *sdp)
+{
+	struct gfs2_jdesc *jd;
+	int found = 0;
+
+	spin_lock(&sdp->sd_jindex_spin);
+
+	list_for_each_entry(jd, &sdp->sd_jindex_list, jd_list) {
+		if (jd->jd_dirty) {
+			jd->jd_dirty = 0;
+			found = 1;
+			break;
+		}
+	}
+	spin_unlock(&sdp->sd_jindex_spin);
+
+	if (!found)
+		jd = NULL;
+
+	return jd;
+}
+
 /**
  * gfs2_check_journals - Recover any dirty journals
  * @sdp: the filesystem
  *
  */
 
-void gfs2_check_journals(struct gfs2_sbd *sdp)
+static void gfs2_check_journals(struct gfs2_sbd *sdp)
 {
 	struct gfs2_jdesc *jd;
 
@@ -603,3 +627,25 @@ void gfs2_check_journals(struct gfs2_sbd *sdp)
 	}
 }
 
+/**
+ * gfs2_recoverd - Recover dead machine's journals
+ * @sdp: Pointer to GFS2 superblock
+ *
+ */
+
+int gfs2_recoverd(void *data)
+{
+	struct gfs2_sbd *sdp = data;
+	unsigned long t;
+
+	while (!kthread_should_stop()) {
+		gfs2_check_journals(sdp);
+		t = gfs2_tune_get(sdp,  gt_recoverd_secs) * HZ;
+		if (freezing(current))
+			refrigerator();
+		schedule_timeout_interruptible(t);
+	}
+
+	return 0;
+}
+

fs/gfs2/recovery.h

@@ -18,17 +18,17 @@ static inline void gfs2_replay_incr_blk(struct gfs2_sbd *sdp, unsigned int *blk)
 	        *blk = 0;
 }
 
-int gfs2_replay_read_block(struct gfs2_jdesc *jd, unsigned int blk,
+extern int gfs2_replay_read_block(struct gfs2_jdesc *jd, unsigned int blk,
 			   struct buffer_head **bh);
 
-int gfs2_revoke_add(struct gfs2_sbd *sdp, u64 blkno, unsigned int where);
-int gfs2_revoke_check(struct gfs2_sbd *sdp, u64 blkno, unsigned int where);
-void gfs2_revoke_clean(struct gfs2_sbd *sdp);
+extern int gfs2_revoke_add(struct gfs2_sbd *sdp, u64 blkno, unsigned int where);
+extern int gfs2_revoke_check(struct gfs2_sbd *sdp, u64 blkno, unsigned int where);
+extern void gfs2_revoke_clean(struct gfs2_sbd *sdp);
 
-int gfs2_find_jhead(struct gfs2_jdesc *jd,
+extern int gfs2_find_jhead(struct gfs2_jdesc *jd,
 		    struct gfs2_log_header_host *head);
-int gfs2_recover_journal(struct gfs2_jdesc *gfs2_jd);
-void gfs2_check_journals(struct gfs2_sbd *sdp);
+extern int gfs2_recover_journal(struct gfs2_jdesc *gfs2_jd);
+extern int gfs2_recoverd(void *data);
 
 #endif /* __RECOVERY_DOT_H__ */
 

fs/gfs2/rgrp.c

@@ -269,16 +269,14 @@ void gfs2_rgrp_verify(struct gfs2_rgrpd *rgd)
 						  bi->bi_len, x);
 	}
 
-	if (count[0] != rgd->rd_rg.rg_free) {
+	if (count[0] != rgd->rd_free) {
 		if (gfs2_consist_rgrpd(rgd))
 			fs_err(sdp, "free data mismatch:  %u != %u\n",
-			       count[0], rgd->rd_rg.rg_free);
+			       count[0], rgd->rd_free);
 		return;
 	}
 
-	tmp = rgd->rd_data -
-		rgd->rd_rg.rg_free -
-		rgd->rd_rg.rg_dinodes;
+	tmp = rgd->rd_data - rgd->rd_free - rgd->rd_dinodes;
 	if (count[1] + count[2] != tmp) {
 		if (gfs2_consist_rgrpd(rgd))
 			fs_err(sdp, "used data mismatch:  %u != %u\n",
@@ -286,10 +284,10 @@ void gfs2_rgrp_verify(struct gfs2_rgrpd *rgd)
 		return;
 	}
 
-	if (count[3] != rgd->rd_rg.rg_dinodes) {
+	if (count[3] != rgd->rd_dinodes) {
 		if (gfs2_consist_rgrpd(rgd))
 			fs_err(sdp, "used metadata mismatch:  %u != %u\n",
-			       count[3], rgd->rd_rg.rg_dinodes);
+			       count[3], rgd->rd_dinodes);
 		return;
 	}
 
@@ -501,7 +499,7 @@ u64 gfs2_ri_total(struct gfs2_sbd *sdp)
 	for (rgrps = 0;; rgrps++) {
 		loff_t pos = rgrps * sizeof(struct gfs2_rindex);
 
-		if (pos + sizeof(struct gfs2_rindex) >= ip->i_di.di_size)
+		if (pos + sizeof(struct gfs2_rindex) >= ip->i_disksize)
 			break;
 		error = gfs2_internal_read(ip, &ra_state, buf, &pos,
 					   sizeof(struct gfs2_rindex));
@@ -590,7 +588,7 @@ static int gfs2_ri_update(struct gfs2_inode *ip)
 	struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
 	struct inode *inode = &ip->i_inode;
 	struct file_ra_state ra_state;
-	u64 rgrp_count = ip->i_di.di_size;
+	u64 rgrp_count = ip->i_disksize;
 	int error;
 
 	if (do_div(rgrp_count, sizeof(struct gfs2_rindex))) {
@@ -634,7 +632,7 @@ static int gfs2_ri_update_special(struct gfs2_inode *ip)
 	for (sdp->sd_rgrps = 0;; sdp->sd_rgrps++) {
 		/* Ignore partials */
 		if ((sdp->sd_rgrps + 1) * sizeof(struct gfs2_rindex) >
-		    ip->i_di.di_size)
+		    ip->i_disksize)
 			break;
 		error = read_rindex_entry(ip, &ra_state);
 		if (error) {
@@ -692,7 +690,6 @@ int gfs2_rindex_hold(struct gfs2_sbd *sdp, struct gfs2_holder *ri_gh)
 static void gfs2_rgrp_in(struct gfs2_rgrpd *rgd, const void *buf)
 {
 	const struct gfs2_rgrp *str = buf;
-	struct gfs2_rgrp_host *rg = &rgd->rd_rg;
 	u32 rg_flags;
 
 	rg_flags = be32_to_cpu(str->rg_flags);
@@ -700,24 +697,23 @@ static void gfs2_rgrp_in(struct gfs2_rgrpd *rgd, const void *buf)
 		rgd->rd_flags |= GFS2_RDF_NOALLOC;
 	else
 		rgd->rd_flags &= ~GFS2_RDF_NOALLOC;
-	rg->rg_free = be32_to_cpu(str->rg_free);
-	rg->rg_dinodes = be32_to_cpu(str->rg_dinodes);
-	rg->rg_igeneration = be64_to_cpu(str->rg_igeneration);
+	rgd->rd_free = be32_to_cpu(str->rg_free);
+	rgd->rd_dinodes = be32_to_cpu(str->rg_dinodes);
+	rgd->rd_igeneration = be64_to_cpu(str->rg_igeneration);
 }
 
 static void gfs2_rgrp_out(struct gfs2_rgrpd *rgd, void *buf)
 {
 	struct gfs2_rgrp *str = buf;
-	struct gfs2_rgrp_host *rg = &rgd->rd_rg;
 	u32 rg_flags = 0;
 
 	if (rgd->rd_flags & GFS2_RDF_NOALLOC)
 		rg_flags |= GFS2_RGF_NOALLOC;
 	str->rg_flags = cpu_to_be32(rg_flags);
-	str->rg_free = cpu_to_be32(rg->rg_free);
-	str->rg_dinodes = cpu_to_be32(rg->rg_dinodes);
+	str->rg_free = cpu_to_be32(rgd->rd_free);
+	str->rg_dinodes = cpu_to_be32(rgd->rd_dinodes);
 	str->__pad = cpu_to_be32(0);
-	str->rg_igeneration = cpu_to_be64(rg->rg_igeneration);
+	str->rg_igeneration = cpu_to_be64(rgd->rd_igeneration);
 	memset(&str->rg_reserved, 0, sizeof(str->rg_reserved));
 }
 
@@ -776,7 +772,7 @@ int gfs2_rgrp_bh_get(struct gfs2_rgrpd *rgd)
 	}
 
 	spin_lock(&sdp->sd_rindex_spin);
-	rgd->rd_free_clone = rgd->rd_rg.rg_free;
+	rgd->rd_free_clone = rgd->rd_free;
 	rgd->rd_bh_count++;
 	spin_unlock(&sdp->sd_rindex_spin);
 
@@ -850,7 +846,7 @@ void gfs2_rgrp_repolish_clones(struct gfs2_rgrpd *rgd)
 	}
 
 	spin_lock(&sdp->sd_rindex_spin);
-	rgd->rd_free_clone = rgd->rd_rg.rg_free;
+	rgd->rd_free_clone = rgd->rd_free;
 	spin_unlock(&sdp->sd_rindex_spin);
 }
 
@@ -1403,8 +1399,8 @@ u64 gfs2_alloc_block(struct gfs2_inode *ip, unsigned int *n)
 	block = rgd->rd_data0 + blk;
 	ip->i_goal = block;
 
-	gfs2_assert_withdraw(sdp, rgd->rd_rg.rg_free >= *n);
-	rgd->rd_rg.rg_free -= *n;
+	gfs2_assert_withdraw(sdp, rgd->rd_free >= *n);
+	rgd->rd_free -= *n;
 
 	gfs2_trans_add_bh(rgd->rd_gl, rgd->rd_bits[0].bi_bh, 1);
 	gfs2_rgrp_out(rgd, rgd->rd_bits[0].bi_bh->b_data);
@@ -1445,10 +1441,10 @@ u64 gfs2_alloc_di(struct gfs2_inode *dip, u64 *generation)
 
 	block = rgd->rd_data0 + blk;
 
-	gfs2_assert_withdraw(sdp, rgd->rd_rg.rg_free);
-	rgd->rd_rg.rg_free--;
-	rgd->rd_rg.rg_dinodes++;
-	*generation = rgd->rd_rg.rg_igeneration++;
+	gfs2_assert_withdraw(sdp, rgd->rd_free);
+	rgd->rd_free--;
+	rgd->rd_dinodes++;
+	*generation = rgd->rd_igeneration++;
 	gfs2_trans_add_bh(rgd->rd_gl, rgd->rd_bits[0].bi_bh, 1);
 	gfs2_rgrp_out(rgd, rgd->rd_bits[0].bi_bh->b_data);
 
@@ -1481,7 +1477,7 @@ void gfs2_free_data(struct gfs2_inode *ip, u64 bstart, u32 blen)
 	if (!rgd)
 		return;
 
-	rgd->rd_rg.rg_free += blen;
+	rgd->rd_free += blen;
 
 	gfs2_trans_add_bh(rgd->rd_gl, rgd->rd_bits[0].bi_bh, 1);
 	gfs2_rgrp_out(rgd, rgd->rd_bits[0].bi_bh->b_data);
@@ -1509,7 +1505,7 @@ void gfs2_free_meta(struct gfs2_inode *ip, u64 bstart, u32 blen)
 	if (!rgd)
 		return;
 
-	rgd->rd_rg.rg_free += blen;
+	rgd->rd_free += blen;
 
 	gfs2_trans_add_bh(rgd->rd_gl, rgd->rd_bits[0].bi_bh, 1);
 	gfs2_rgrp_out(rgd, rgd->rd_bits[0].bi_bh->b_data);
@@ -1546,10 +1542,10 @@ static void gfs2_free_uninit_di(struct gfs2_rgrpd *rgd, u64 blkno)
 		return;
 	gfs2_assert_withdraw(sdp, rgd == tmp_rgd);
 
-	if (!rgd->rd_rg.rg_dinodes)
+	if (!rgd->rd_dinodes)
 		gfs2_consist_rgrpd(rgd);
-	rgd->rd_rg.rg_dinodes--;
-	rgd->rd_rg.rg_free++;
+	rgd->rd_dinodes--;
+	rgd->rd_free++;
 
 	gfs2_trans_add_bh(rgd->rd_gl, rgd->rd_bits[0].bi_bh, 1);
 	gfs2_rgrp_out(rgd, rgd->rd_bits[0].bi_bh->b_data);

fs/gfs2/super.c

@@ -33,76 +33,6 @@
 #include "trans.h"
 #include "util.h"
 
-/**
- * gfs2_jindex_hold - Grab a lock on the jindex
- * @sdp: The GFS2 superblock
- * @ji_gh: the holder for the jindex glock
- *
- * This is very similar to the gfs2_rindex_hold() function, except that
- * in general we hold the jindex lock for longer periods of time and
- * we grab it far less frequently (in general) then the rgrp lock.
- *
- * Returns: errno
- */
-
-int gfs2_jindex_hold(struct gfs2_sbd *sdp, struct gfs2_holder *ji_gh)
-{
-	struct gfs2_inode *dip = GFS2_I(sdp->sd_jindex);
-	struct qstr name;
-	char buf[20];
-	struct gfs2_jdesc *jd;
-	int error;
-
-	name.name = buf;
-
-	mutex_lock(&sdp->sd_jindex_mutex);
-
-	for (;;) {
-		error = gfs2_glock_nq_init(dip->i_gl, LM_ST_SHARED, 0, ji_gh);
-		if (error)
-			break;
-
-		name.len = sprintf(buf, "journal%u", sdp->sd_journals);
-		name.hash = gfs2_disk_hash(name.name, name.len);
-
-		error = gfs2_dir_check(sdp->sd_jindex, &name, NULL);
-		if (error == -ENOENT) {
-			error = 0;
-			break;
-		}
-
-		gfs2_glock_dq_uninit(ji_gh);
-
-		if (error)
-			break;
-
-		error = -ENOMEM;
-		jd = kzalloc(sizeof(struct gfs2_jdesc), GFP_KERNEL);
-		if (!jd)
-			break;
-
-		INIT_LIST_HEAD(&jd->extent_list);
-		jd->jd_inode = gfs2_lookupi(sdp->sd_jindex, &name, 1);
-		if (!jd->jd_inode || IS_ERR(jd->jd_inode)) {
-			if (!jd->jd_inode)
-				error = -ENOENT;
-			else
-				error = PTR_ERR(jd->jd_inode);
-			kfree(jd);
-			break;
-		}
-
-		spin_lock(&sdp->sd_jindex_spin);
-		jd->jd_jid = sdp->sd_journals++;
-		list_add_tail(&jd->jd_list, &sdp->sd_jindex_list);
-		spin_unlock(&sdp->sd_jindex_spin);
-	}
-
-	mutex_unlock(&sdp->sd_jindex_mutex);
-
-	return error;
-}
-
 /**
  * gfs2_jindex_free - Clear all the journal index information
  * @sdp: The GFS2 superblock
@@ -166,39 +96,6 @@ struct gfs2_jdesc *gfs2_jdesc_find(struct gfs2_sbd *sdp, unsigned int jid)
 	return jd;
 }
 
-void gfs2_jdesc_make_dirty(struct gfs2_sbd *sdp, unsigned int jid)
-{
-	struct gfs2_jdesc *jd;
-
-	spin_lock(&sdp->sd_jindex_spin);
-	jd = jdesc_find_i(&sdp->sd_jindex_list, jid);
-	if (jd)
-		jd->jd_dirty = 1;
-	spin_unlock(&sdp->sd_jindex_spin);
-}
-
-struct gfs2_jdesc *gfs2_jdesc_find_dirty(struct gfs2_sbd *sdp)
-{
-	struct gfs2_jdesc *jd;
-	int found = 0;
-
-	spin_lock(&sdp->sd_jindex_spin);
-
-	list_for_each_entry(jd, &sdp->sd_jindex_list, jd_list) {
-		if (jd->jd_dirty) {
-			jd->jd_dirty = 0;
-			found = 1;
-			break;
-		}
-	}
-	spin_unlock(&sdp->sd_jindex_spin);
-
-	if (!found)
-		jd = NULL;
-
-	return jd;
-}
-
 int gfs2_jdesc_check(struct gfs2_jdesc *jd)
 {
 	struct gfs2_inode *ip = GFS2_I(jd->jd_inode);
@@ -206,14 +103,14 @@ int gfs2_jdesc_check(struct gfs2_jdesc *jd)
 	int ar;
 	int error;
 
-	if (ip->i_di.di_size < (8 << 20) || ip->i_di.di_size > (1 << 30) ||
-	    (ip->i_di.di_size & (sdp->sd_sb.sb_bsize - 1))) {
+	if (ip->i_disksize < (8 << 20) || ip->i_disksize > (1 << 30) ||
+	    (ip->i_disksize & (sdp->sd_sb.sb_bsize - 1))) {
 		gfs2_consist_inode(ip);
 		return -EIO;
 	}
-	jd->jd_blocks = ip->i_di.di_size >> sdp->sd_sb.sb_bsize_shift;
+	jd->jd_blocks = ip->i_disksize >> sdp->sd_sb.sb_bsize_shift;
 
-	error = gfs2_write_alloc_required(ip, 0, ip->i_di.di_size, &ar);
+	error = gfs2_write_alloc_required(ip, 0, ip->i_disksize, &ar);
 	if (!error && ar) {
 		gfs2_consist_inode(ip);
 		error = -EIO;
@@ -423,137 +320,6 @@ int gfs2_statfs_sync(struct gfs2_sbd *sdp)
 	return error;
 }
 
-/**
- * gfs2_statfs_i - Do a statfs
- * @sdp: the filesystem
- * @sg: the sg structure
- *
- * Returns: errno
- */
-
-int gfs2_statfs_i(struct gfs2_sbd *sdp, struct gfs2_statfs_change_host *sc)
-{
-	struct gfs2_statfs_change_host *m_sc = &sdp->sd_statfs_master;
-	struct gfs2_statfs_change_host *l_sc = &sdp->sd_statfs_local;
-
-	spin_lock(&sdp->sd_statfs_spin);
-
-	*sc = *m_sc;
-	sc->sc_total += l_sc->sc_total;
-	sc->sc_free += l_sc->sc_free;
-	sc->sc_dinodes += l_sc->sc_dinodes;
-
-	spin_unlock(&sdp->sd_statfs_spin);
-
-	if (sc->sc_free < 0)
-		sc->sc_free = 0;
-	if (sc->sc_free > sc->sc_total)
-		sc->sc_free = sc->sc_total;
-	if (sc->sc_dinodes < 0)
-		sc->sc_dinodes = 0;
-
-	return 0;
-}
-
-/**
- * statfs_fill - fill in the sg for a given RG
- * @rgd: the RG
- * @sc: the sc structure
- *
- * Returns: 0 on success, -ESTALE if the LVB is invalid
- */
-
-static int statfs_slow_fill(struct gfs2_rgrpd *rgd,
-			    struct gfs2_statfs_change_host *sc)
-{
-	gfs2_rgrp_verify(rgd);
-	sc->sc_total += rgd->rd_data;
-	sc->sc_free += rgd->rd_rg.rg_free;
-	sc->sc_dinodes += rgd->rd_rg.rg_dinodes;
-	return 0;
-}
-
-/**
- * gfs2_statfs_slow - Stat a filesystem using asynchronous locking
- * @sdp: the filesystem
- * @sc: the sc info that will be returned
- *
- * Any error (other than a signal) will cause this routine to fall back
- * to the synchronous version.
- *
- * FIXME: This really shouldn't busy wait like this.
- *
- * Returns: errno
- */
-
-int gfs2_statfs_slow(struct gfs2_sbd *sdp, struct gfs2_statfs_change_host *sc)
-{
-	struct gfs2_holder ri_gh;
-	struct gfs2_rgrpd *rgd_next;
-	struct gfs2_holder *gha, *gh;
-	unsigned int slots = 64;
-	unsigned int x;
-	int done;
-	int error = 0, err;
-
-	memset(sc, 0, sizeof(struct gfs2_statfs_change_host));
-	gha = kcalloc(slots, sizeof(struct gfs2_holder), GFP_KERNEL);
-	if (!gha)
-		return -ENOMEM;
-
-	error = gfs2_rindex_hold(sdp, &ri_gh);
-	if (error)
-		goto out;
-
-	rgd_next = gfs2_rgrpd_get_first(sdp);
-
-	for (;;) {
-		done = 1;
-
-		for (x = 0; x < slots; x++) {
-			gh = gha + x;
-
-			if (gh->gh_gl && gfs2_glock_poll(gh)) {
-				err = gfs2_glock_wait(gh);
-				if (err) {
-					gfs2_holder_uninit(gh);
-					error = err;
-				} else {
-					if (!error)
-						error = statfs_slow_fill(
-							gh->gh_gl->gl_object, sc);
-					gfs2_glock_dq_uninit(gh);
-				}
-			}
-
-			if (gh->gh_gl)
-				done = 0;
-			else if (rgd_next && !error) {
-				error = gfs2_glock_nq_init(rgd_next->rd_gl,
-							   LM_ST_SHARED,
-							   GL_ASYNC,
-							   gh);
-				rgd_next = gfs2_rgrpd_get_next(rgd_next);
-				done = 0;
-			}
-
-			if (signal_pending(current))
-				error = -ERESTARTSYS;
-		}
-
-		if (done)
-			break;
-
-		yield();
-	}
-
-	gfs2_glock_dq_uninit(&ri_gh);
-
-out:
-	kfree(gha);
-	return error;
-}
-
 struct lfcc {
 	struct list_head list;
 	struct gfs2_holder gh;
@@ -580,10 +346,6 @@ static int gfs2_lock_fs_check_clean(struct gfs2_sbd *sdp,
 	struct gfs2_log_header_host lh;
 	int error;
 
-	error = gfs2_jindex_hold(sdp, &ji_gh);
-	if (error)
-		return error;
-
 	list_for_each_entry(jd, &sdp->sd_jindex_list, jd_list) {
 		lfcc = kmalloc(sizeof(struct lfcc), GFP_KERNEL);
 		if (!lfcc) {

fs/gfs2/super.h

@@ -10,6 +10,8 @@
 #ifndef __SUPER_DOT_H__
 #define __SUPER_DOT_H__
 
+#include <linux/fs.h>
+#include <linux/dcache.h>
 #include "incore.h"
 
 void gfs2_lm_unmount(struct gfs2_sbd *sdp);
@@ -23,12 +25,9 @@ static inline unsigned int gfs2_jindex_size(struct gfs2_sbd *sdp)
 	return x;
 }
 
-int gfs2_jindex_hold(struct gfs2_sbd *sdp, struct gfs2_holder *ji_gh);
 void gfs2_jindex_free(struct gfs2_sbd *sdp);
 
 struct gfs2_jdesc *gfs2_jdesc_find(struct gfs2_sbd *sdp, unsigned int jid);
-void gfs2_jdesc_make_dirty(struct gfs2_sbd *sdp, unsigned int jid);
-struct gfs2_jdesc *gfs2_jdesc_find_dirty(struct gfs2_sbd *sdp);
 int gfs2_jdesc_check(struct gfs2_jdesc *jd);
 
 int gfs2_lookup_in_master_dir(struct gfs2_sbd *sdp, char *filename,
@@ -40,11 +39,15 @@ int gfs2_statfs_init(struct gfs2_sbd *sdp);
 void gfs2_statfs_change(struct gfs2_sbd *sdp,
 			s64 total, s64 free, s64 dinodes);
 int gfs2_statfs_sync(struct gfs2_sbd *sdp);
-int gfs2_statfs_i(struct gfs2_sbd *sdp, struct gfs2_statfs_change_host *sc);
-int gfs2_statfs_slow(struct gfs2_sbd *sdp, struct gfs2_statfs_change_host *sc);
 
 int gfs2_freeze_fs(struct gfs2_sbd *sdp);
 void gfs2_unfreeze_fs(struct gfs2_sbd *sdp);
 
+extern struct file_system_type gfs2_fs_type;
+extern struct file_system_type gfs2meta_fs_type;
+extern const struct export_operations gfs2_export_ops;
+extern const struct super_operations gfs2_super_ops;
+extern struct dentry_operations gfs2_dops;
+
 #endif /* __SUPER_DOT_H__ */
 

fs/gfs2/sys.c

@@ -26,9 +26,6 @@
 #include "quota.h"
 #include "util.h"
 
-char *gfs2_sys_margs;
-spinlock_t gfs2_sys_margs_lock;
-
 static ssize_t id_show(struct gfs2_sbd *sdp, char *buf)
 {
 	return snprintf(buf, PAGE_SIZE, "%u:%u\n",
@@ -263,7 +260,6 @@ ARGS_ATTR(localcaching,    "%d\n");
 ARGS_ATTR(localflocks,     "%d\n");
 ARGS_ATTR(debug,           "%d\n");
 ARGS_ATTR(upgrade,         "%d\n");
-ARGS_ATTR(num_glockd,      "%u\n");
 ARGS_ATTR(posix_acl,       "%d\n");
 ARGS_ATTR(quota,           "%u\n");
 ARGS_ATTR(suiddir,         "%d\n");
@@ -279,7 +275,6 @@ static struct attribute *args_attrs[] = {
 	&args_attr_localflocks.attr,
 	&args_attr_debug.attr,
 	&args_attr_upgrade.attr,
-	&args_attr_num_glockd.attr,
 	&args_attr_posix_acl.attr,
 	&args_attr_quota.attr,
 	&args_attr_suiddir.attr,
@@ -287,30 +282,6 @@ static struct attribute *args_attrs[] = {
 	NULL,
 };
 
-/*
- * display counters from superblock
- */
-
-struct counters_attr {
-	struct attribute attr;
-	ssize_t (*show)(struct gfs2_sbd *, char *);
-};
-
-#define COUNTERS_ATTR(name, fmt)                                            \
-static ssize_t name##_show(struct gfs2_sbd *sdp, char *buf)                 \
-{                                                                           \
-	return snprintf(buf, PAGE_SIZE, fmt,                                \
-			(unsigned int)atomic_read(&sdp->sd_##name));        \
-}                                                                           \
-static struct counters_attr counters_attr_##name = __ATTR_RO(name)
-
-COUNTERS_ATTR(reclaimed,        "%u\n");
-
-static struct attribute *counters_attrs[] = {
-	&counters_attr_reclaimed.attr,
-	NULL,
-};
-
 /*
  * get and set struct gfs2_tune fields
  */
@@ -393,7 +364,6 @@ static ssize_t name##_store(struct gfs2_sbd *sdp, const char *buf, size_t len)\
 }                                                                             \
 TUNE_ATTR_2(name, name##_store)
 
-TUNE_ATTR(demote_secs, 0);
 TUNE_ATTR(incore_log_blocks, 0);
 TUNE_ATTR(log_flush_secs, 0);
 TUNE_ATTR(quota_warn_period, 0);
@@ -408,11 +378,9 @@ TUNE_ATTR(stall_secs, 1);
 TUNE_ATTR(statfs_quantum, 1);
 TUNE_ATTR_DAEMON(recoverd_secs, recoverd_process);
 TUNE_ATTR_DAEMON(logd_secs, logd_process);
-TUNE_ATTR_DAEMON(quotad_secs, quotad_process);
 TUNE_ATTR_3(quota_scale, quota_scale_show, quota_scale_store);
 
 static struct attribute *tune_attrs[] = {
-	&tune_attr_demote_secs.attr,
 	&tune_attr_incore_log_blocks.attr,
 	&tune_attr_log_flush_secs.attr,
 	&tune_attr_quota_warn_period.attr,
@@ -426,7 +394,6 @@ static struct attribute *tune_attrs[] = {
 	&tune_attr_statfs_quantum.attr,
 	&tune_attr_recoverd_secs.attr,
 	&tune_attr_logd_secs.attr,
-	&tune_attr_quotad_secs.attr,
 	&tune_attr_quota_scale.attr,
 	&tune_attr_new_files_jdata.attr,
 	NULL,
@@ -437,11 +404,6 @@ static struct attribute_group lockstruct_group = {
 	.attrs = lockstruct_attrs,
 };
 
-static struct attribute_group counters_group = {
-	.name = "counters",
-	.attrs = counters_attrs,
-};
-
 static struct attribute_group args_group = {
 	.name = "args",
 	.attrs = args_attrs,
@@ -466,13 +428,9 @@ int gfs2_sys_fs_add(struct gfs2_sbd *sdp)
 	if (error)
 		goto fail_reg;
 
-	error = sysfs_create_group(&sdp->sd_kobj, &counters_group);
-	if (error)
-		goto fail_lockstruct;
-
 	error = sysfs_create_group(&sdp->sd_kobj, &args_group);
 	if (error)
-		goto fail_counters;
+		goto fail_lockstruct;
 
 	error = sysfs_create_group(&sdp->sd_kobj, &tune_group);
 	if (error)
@@ -483,8 +441,6 @@ int gfs2_sys_fs_add(struct gfs2_sbd *sdp)
 
 fail_args:
 	sysfs_remove_group(&sdp->sd_kobj, &args_group);
-fail_counters:
-	sysfs_remove_group(&sdp->sd_kobj, &counters_group);
 fail_lockstruct:
 	sysfs_remove_group(&sdp->sd_kobj, &lockstruct_group);
 fail_reg:
@@ -498,16 +454,27 @@ void gfs2_sys_fs_del(struct gfs2_sbd *sdp)
 {
 	sysfs_remove_group(&sdp->sd_kobj, &tune_group);
 	sysfs_remove_group(&sdp->sd_kobj, &args_group);
-	sysfs_remove_group(&sdp->sd_kobj, &counters_group);
 	sysfs_remove_group(&sdp->sd_kobj, &lockstruct_group);
 	kobject_put(&sdp->sd_kobj);
 }
 
+static int gfs2_uevent(struct kset *kset, struct kobject *kobj,
+		       struct kobj_uevent_env *env)
+{
+	struct gfs2_sbd *sdp = container_of(kobj, struct gfs2_sbd, sd_kobj);
+	add_uevent_var(env, "LOCKTABLE=%s", sdp->sd_table_name);
+	add_uevent_var(env, "LOCKPROTO=%s", sdp->sd_proto_name);
+	return 0;
+}
+
+static struct kset_uevent_ops gfs2_uevent_ops = {
+	.uevent = gfs2_uevent,
+};
+
+
 int gfs2_sys_init(void)
 {
-	gfs2_sys_margs = NULL;
-	spin_lock_init(&gfs2_sys_margs_lock);
-	gfs2_kset = kset_create_and_add("gfs2", NULL, fs_kobj);
+	gfs2_kset = kset_create_and_add("gfs2", &gfs2_uevent_ops, fs_kobj);
 	if (!gfs2_kset)
 		return -ENOMEM;
 	return 0;
@@ -515,7 +482,6 @@ int gfs2_sys_init(void)
 
 void gfs2_sys_uninit(void)
 {
-	kfree(gfs2_sys_margs);
 	kset_unregister(gfs2_kset);
 }
 

fs/gfs2/sys.h

@@ -13,10 +13,6 @@
 #include <linux/spinlock.h>
 struct gfs2_sbd;
 
-/* Allow args to be passed to GFS2 when using an initial ram disk */
-extern char *gfs2_sys_margs;
-extern spinlock_t gfs2_sys_margs_lock;
-
 int gfs2_sys_fs_add(struct gfs2_sbd *sdp);
 void gfs2_sys_fs_del(struct gfs2_sbd *sdp);
 

fs/gfs2/util.c

@@ -25,6 +25,7 @@ struct kmem_cache *gfs2_glock_cachep __read_mostly;
 struct kmem_cache *gfs2_inode_cachep __read_mostly;
 struct kmem_cache *gfs2_bufdata_cachep __read_mostly;
 struct kmem_cache *gfs2_rgrpd_cachep __read_mostly;
+struct kmem_cache *gfs2_quotad_cachep __read_mostly;
 
 void gfs2_assert_i(struct gfs2_sbd *sdp)
 {

fs/gfs2/util.h

@@ -148,6 +148,7 @@ extern struct kmem_cache *gfs2_glock_cachep;
 extern struct kmem_cache *gfs2_inode_cachep;
 extern struct kmem_cache *gfs2_bufdata_cachep;
 extern struct kmem_cache *gfs2_rgrpd_cachep;
+extern struct kmem_cache *gfs2_quotad_cachep;
 
 static inline unsigned int gfs2_tune_get_i(struct gfs2_tune *gt,
 					   unsigned int *p)

fs/ioctl.c

@@ -231,7 +231,8 @@ static int ioctl_fiemap(struct file *filp, unsigned long arg)
 #define blk_to_logical(inode, blk) (blk << (inode)->i_blkbits)
 #define logical_to_blk(inode, offset) (offset >> (inode)->i_blkbits);
 
-/*
+/**
+ * __generic_block_fiemap - FIEMAP for block based inodes (no locking)
  * @inode - the inode to map
  * @arg - the pointer to userspace where we copy everything to
  * @get_block - the fs's get_block function
@@ -242,11 +243,15 @@ static int ioctl_fiemap(struct file *filp, unsigned long arg)
  *
  * If it is possible to have data blocks beyond a hole past @inode->i_size, then
  * please do not use this function, it will stop at the first unmapped block
- * beyond i_size
+ * beyond i_size.
+ *
+ * If you use this function directly, you need to do your own locking. Use
+ * generic_block_fiemap if you want the locking done for you.
  */
-int generic_block_fiemap(struct inode *inode,
-			 struct fiemap_extent_info *fieinfo, u64 start,
-			 u64 len, get_block_t *get_block)
+
+int __generic_block_fiemap(struct inode *inode,
+			   struct fiemap_extent_info *fieinfo, u64 start,
+			   u64 len, get_block_t *get_block)
 {
 	struct buffer_head tmp;
 	unsigned int start_blk;
@@ -260,9 +265,6 @@ int generic_block_fiemap(struct inode *inode,
 
 	start_blk = logical_to_blk(inode, start);
 
-	/* guard against change */
-	mutex_lock(&inode->i_mutex);
-
 	length = (long long)min_t(u64, len, i_size_read(inode));
 	map_len = length;
 
@@ -334,14 +336,36 @@ int generic_block_fiemap(struct inode *inode,
 		cond_resched();
 	} while (1);
 
-	mutex_unlock(&inode->i_mutex);
-
 	/* if ret is 1 then we just hit the end of the extent array */
 	if (ret == 1)
 		ret = 0;
 
 	return ret;
 }
+EXPORT_SYMBOL(__generic_block_fiemap);
+
+/**
+ * generic_block_fiemap - FIEMAP for block based inodes
+ * @inode: The inode to map
+ * @fieinfo: The mapping information
+ * @start: The initial block to map
+ * @len: The length of the extect to attempt to map
+ * @get_block: The block mapping function for the fs
+ *
+ * Calls __generic_block_fiemap to map the inode, after taking
+ * the inode's mutex lock.
+ */
+
+int generic_block_fiemap(struct inode *inode,
+			 struct fiemap_extent_info *fieinfo, u64 start,
+			 u64 len, get_block_t *get_block)
+{
+	int ret;
+	mutex_lock(&inode->i_mutex);
+	ret = __generic_block_fiemap(inode, fieinfo, start, len, get_block);
+	mutex_unlock(&inode->i_mutex);
+	return ret;
+}
 EXPORT_SYMBOL(generic_block_fiemap);
 
 #endif  /*  CONFIG_BLOCK  */

include/linux/fs.h

@@ -2059,6 +2059,9 @@ extern int vfs_fstat(unsigned int, struct kstat *);
 
 extern int do_vfs_ioctl(struct file *filp, unsigned int fd, unsigned int cmd,
 		    unsigned long arg);
+extern int __generic_block_fiemap(struct inode *inode,
+				  struct fiemap_extent_info *fieinfo, u64 start,
+				  u64 len, get_block_t *get_block);
 extern int generic_block_fiemap(struct inode *inode,
 				struct fiemap_extent_info *fieinfo, u64 start,
 				u64 len, get_block_t *get_block);