Merge bk://linus@bkbits.net/linux-2.5

into home.transmeta.com:/home/torvalds/v2.5/linux

drivers/block/ll_rw_blk.c

@@ -413,11 +413,12 @@ struct request *blk_queue_find_tag(request_queue_t *q, int tag)
 {
 	struct blk_queue_tag *bqt = q->queue_tags;
 
-	if (unlikely(bqt == NULL || bqt->max_depth < tag))
+	if (unlikely(bqt == NULL || tag >= bqt->real_max_depth))
 		return NULL;
 
 	return bqt->tag_index[tag];
 }
+
 /**
  * blk_queue_free_tags - release tag maintenance info
  * @q:  the request queue for the device
@@ -448,39 +449,28 @@ void blk_queue_free_tags(request_queue_t *q)
 	q->queue_flags &= ~(1 << QUEUE_FLAG_QUEUED);
 }
 
-/**
- * blk_queue_init_tags - initialize the queue tag info
- * @q:  the request queue for the device
- * @depth:  the maximum queue depth supported
- **/
-int blk_queue_init_tags(request_queue_t *q, int depth)
+static int init_tag_map(struct blk_queue_tag *tags, int depth)
 {
-	struct blk_queue_tag *tags;
 	int bits, i;
 
 	if (depth > (queue_nr_requests*2)) {
 		depth = (queue_nr_requests*2);
-		printk("blk_queue_init_tags: adjusted depth to %d\n", depth);
+		printk(KERN_ERR "%s: adjusted depth to %d\n", __FUNCTION__, depth);
 	}
 
-	tags = kmalloc(sizeof(struct blk_queue_tag),GFP_ATOMIC);
-	if (!tags)
-		goto fail;
-
 	tags->tag_index = kmalloc(depth * sizeof(struct request *), GFP_ATOMIC);
 	if (!tags->tag_index)
-		goto fail_index;
+		goto fail;
 
 	bits = (depth / BLK_TAGS_PER_LONG) + 1;
 	tags->tag_map = kmalloc(bits * sizeof(unsigned long), GFP_ATOMIC);
 	if (!tags->tag_map)
-		goto fail_map;
+		goto fail;
 
 	memset(tags->tag_index, 0, depth * sizeof(struct request *));
 	memset(tags->tag_map, 0, bits * sizeof(unsigned long));
-	INIT_LIST_HEAD(&tags->busy_list);
-	tags->busy = 0;
 	tags->max_depth = depth;
+	tags->real_max_depth = bits * BITS_PER_LONG;
 
 	/*
 	 * set the upper bits if the depth isn't a multiple of the word size
@@ -488,21 +478,88 @@ int blk_queue_init_tags(request_queue_t *q, int depth)
 	for (i = depth; i < bits * BLK_TAGS_PER_LONG; i++)
 		__set_bit(i, tags->tag_map);
 
+	return 0;
+fail:
+	kfree(tags->tag_index);
+	return -ENOMEM;
+}
+
+
+/**
+ * blk_queue_init_tags - initialize the queue tag info
+ * @q:  the request queue for the device
+ * @depth:  the maximum queue depth supported
+ **/
+int blk_queue_init_tags(request_queue_t *q, int depth)
+{
+	struct blk_queue_tag *tags;
+
+	tags = kmalloc(sizeof(struct blk_queue_tag),GFP_ATOMIC);
+	if (!tags)
+		goto fail;
+
+	if (init_tag_map(tags, depth))
+		goto fail;
+
+	INIT_LIST_HEAD(&tags->busy_list);
+	tags->busy = 0;
+
 	/*
 	 * assign it, all done
 	 */
 	q->queue_tags = tags;
 	q->queue_flags |= (1 << QUEUE_FLAG_QUEUED);
 	return 0;
-
-fail_map:
-	kfree(tags->tag_index);
-fail_index:
-	kfree(tags);
 fail:
+	kfree(tags);
 	return -ENOMEM;
 }
 
+/**
+ * blk_queue_resize_tags - change the queueing depth
+ * @q:  the request queue for the device
+ * @new_depth: the new max command queueing depth
+ *
+ *  Notes:
+ *    Must be called with the queue lock held.
+ **/
+int blk_queue_resize_tags(request_queue_t *q, int new_depth)
+{
+	struct blk_queue_tag *bqt = q->queue_tags;
+	struct request **tag_index;
+	unsigned long *tag_map;
+	int bits, max_depth;
+
+	if (!bqt)
+		return -ENXIO;
+
+	/*
+	 * don't bother sizing down
+	 */
+	if (new_depth <= bqt->real_max_depth) {
+		bqt->max_depth = new_depth;
+		return 0;
+	}
+
+	/*
+	 * save the old state info, so we can copy it back
+	 */
+	tag_index = bqt->tag_index;
+	tag_map = bqt->tag_map;
+	max_depth = bqt->real_max_depth;
+
+	if (init_tag_map(bqt, new_depth))
+		return -ENOMEM;
+
+	memcpy(bqt->tag_index, tag_index, max_depth * sizeof(struct request *));
+	bits = max_depth / BLK_TAGS_PER_LONG;
+	memcpy(bqt->tag_map, bqt->tag_map, bits * sizeof(unsigned long));
+
+	kfree(tag_index);
+	kfree(tag_map);
+	return 0;
+}
+
 /**
  * blk_queue_end_tag - end tag operations for a request
  * @q:  the request queue for the device
@@ -524,7 +581,7 @@ void blk_queue_end_tag(request_queue_t *q, struct request *rq)
 
 	BUG_ON(tag == -1);
 
-	if (unlikely(tag >= bqt->max_depth))
+	if (unlikely(tag >= bqt->real_max_depth))
 		return;
 
 	if (unlikely(!__test_and_clear_bit(tag, bqt->tag_map))) {

drivers/video/i810/i810.h

@@ -203,8 +203,8 @@
 #define LOCKUP                      8
 
 struct gtt_data {
-	agp_memory *i810_fb_memory;
-	agp_memory *i810_cursor_memory;
+	struct agp_memory *i810_fb_memory;
+	struct agp_memory *i810_cursor_memory;
 };
 
 struct mode_registers {

drivers/video/i810/i810_main.c

@@ -1926,11 +1926,6 @@ static void __exit i810fb_remove_pci(struct pci_dev *dev)
 #ifndef MODULE
 int __init i810fb_init(void)
 {
-	if (agp_init()) {
-		printk("i810fb_init: cannot initialize agpgart\n");
-		return -ENODEV;
-	}
-
 	if (agp_intel_init()) {
 		printk("i810fb_init: cannot initialize intel agpgart\n");
 		return -ENODEV;

drivers/video/i810/i810_main.h

@@ -111,7 +111,6 @@ static int i810fb_blank      (int blank_mode, struct fb_info *info);
 /* Initialization */
 static void i810fb_release_resource       (struct fb_info *info, struct i810fb_par *par);
 extern int __init agp_intel_init(void);
-extern int __init agp_init(void);
 
 
 /* Video Timings */

drivers/video/sis/sis_main.c

@@ -2868,8 +2868,8 @@ static int sisfb_heap_init(void)
 	unsigned long *write_port = 0;
 	SIS_CMDTYPE    cmd_type;
 #ifndef AGPOFF
-	agp_kern_info  *agp_info;
-	agp_memory     *agp;
+	struct agp_kern_info  *agp_info;
+	struct agp_memory     *agp;
 	u32            agp_phys;
 #endif
 #endif
@@ -2946,8 +2946,8 @@ static int sisfb_heap_init(void)
 
 #ifndef AGPOFF
 	if (sisfb_queuemode == AGP_CMD_QUEUE) {
-		agp_info = vmalloc(sizeof(agp_kern_info));
-		memset((void*)agp_info, 0x00, sizeof(agp_kern_info));
+		agp_info = vmalloc(sizeof(*agp_info));
+		memset((void*)agp_info, 0x00, sizeof(*agp_info));
 		agp_copy_info(agp_info);
 
 		agp_backend_acquire();

fs/char_dev.c

@@ -89,6 +89,8 @@ __register_chrdev_region(unsigned int major, unsigned int baseminor,
 	if (cd == NULL)
 		return ERR_PTR(-ENOMEM);
 
+	memset(cd, 0, sizeof(struct char_device_struct));
+
 	write_lock_irq(&chrdevs_lock);
 
 	/* temporary */

fs/cifs/cifsfs.c

@@ -94,13 +94,17 @@ cifs_read_super(struct super_block *sb, void *data,
 	sb->s_blocksize_bits = 14;	/* default 2**14 = CIFS_MAX_MSGSIZE */
 	inode = iget(sb, ROOT_I);
 
-	if (!inode)
+	if (!inode) {
+		rc = -ENOMEM;
 		goto out_no_root;
+	}
 
 	sb->s_root = d_alloc_root(inode);
 
-	if (!sb->s_root)
+	if (!sb->s_root) {
+		rc = -ENOMEM;
 		goto out_no_root;
+	}
 
 	return 0;
 
@@ -114,7 +118,7 @@ cifs_read_super(struct super_block *sb, void *data,
 		unload_nls(cifs_sb->local_nls);	
 	if(cifs_sb)
 		kfree(cifs_sb);
-	return -EINVAL;
+	return rc;
 }
 
 void
@@ -332,7 +336,7 @@ struct file_operations cifs_file_ops = {
 	.release = cifs_close,
 	.lock = cifs_lock,
 	.fsync = cifs_fsync,
-    .flush = cifs_flush,
+	.flush = cifs_flush,
 	.mmap  = cifs_file_mmap,
 	.sendfile = generic_file_sendfile,
 };

fs/cifs/connect.c

@@ -346,6 +346,7 @@ parse_mount_options(char *options, const char *devname, struct smb_vol *vol)
 {
 	char *value;
 	char *data;
+	int  temp_len;
 
 	memset(vol,0,sizeof(struct smb_vol));
 	vol->linux_uid = current->uid;	/* current->euid instead? */
@@ -398,8 +399,9 @@ parse_mount_options(char *options, const char *devname, struct smb_vol *vol)
 				       "CIFS: invalid path to network resource\n");
 				return 1;	/* needs_arg; */
 			}
-			if (strnlen(value, 300) < 300) {
-				vol->UNC = value;
+			if ((temp_len = strnlen(value, 300)) < 300) {
+				vol->UNC = kmalloc(GFP_KERNEL, temp_len);
+				strcpy(vol->UNC,value);
 				if (strncmp(vol->UNC, "//", 2) == 0) {
 					vol->UNC[0] = '\\';
 					vol->UNC[1] = '\\';
@@ -472,8 +474,9 @@ parse_mount_options(char *options, const char *devname, struct smb_vol *vol)
 			printk(KERN_WARNING "CIFS: Missing UNC name for mount target\n");
 			return 1;
 		}
-		if (strnlen(devname, 300) < 300) {
-			vol->UNC = devname;
+		if ((temp_len = strnlen(devname, 300)) < 300) {
+			vol->UNC = kmalloc(GFP_KERNEL, temp_len);
+			strcpy(vol->UNC,devname);
 			if (strncmp(vol->UNC, "//", 2) == 0) {
 				vol->UNC[0] = '\\';
 				vol->UNC[1] = '\\';
@@ -812,6 +815,8 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
 	cFYI(1, ("Entering cifs_mount. Xid: %d with: %s", xid, mount_data));
 
 	if (parse_mount_options(mount_data, devname, &volume_info)) {
+		if(volume_info.UNC)
+			kfree(volume_info.UNC);
 		FreeXid(xid);
 		return -EINVAL;
 	}
@@ -852,6 +857,8 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
 			       ("Error connecting to IPv4 socket. Aborting operation"));
 			if(csocket != NULL)
 				sock_release(csocket);
+			if(volume_info.UNC)
+				kfree(volume_info.UNC);
 			FreeXid(xid);
 			return rc;
 		}
@@ -860,6 +867,8 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
 		if (srvTcp == NULL) {
 			rc = -ENOMEM;
 			sock_release(csocket);
+			if(volume_info.UNC)
+				kfree(volume_info.UNC);
 			FreeXid(xid);
 			return rc;
 		} else {
@@ -943,6 +952,8 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
 								 "",
 								 cifs_sb->
 								 local_nls);
+					if(volume_info.UNC)
+						kfree(volume_info.UNC);
 					FreeXid(xid);
 					return -ENODEV;
 				} else {
@@ -995,7 +1006,8 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
 		if (tcon->ses->capabilities & CAP_UNIX)
 			CIFSSMBQFSUnixInfo(xid, tcon, cifs_sb->local_nls);
 	}
-
+	if(volume_info.UNC)
+		kfree(volume_info.UNC);
 	FreeXid(xid);
 	return rc;
 }
@@ -2293,7 +2305,7 @@ CIFSTCon(unsigned int xid, struct cifsSesInfo *ses,
 		length = strnlen(bcc_ptr, BCC(smb_buffer_response) - 2);
         /* skip service field (NB: this field is always ASCII) */
 		bcc_ptr += length + 1;	
-        strncpy(tcon->treeName, tree, MAX_TREE_SIZE);
+		strncpy(tcon->treeName, tree, MAX_TREE_SIZE);
 		if (smb_buffer->Flags2 &= SMBFLG2_UNICODE) {
 			length = UniStrnlen((wchar_t *) bcc_ptr, 512);
 			if (((long) bcc_ptr + (2 * length)) -

fs/cifs/netmisc.c

@@ -46,7 +46,7 @@ struct smb_to_posix_error {
 const struct smb_to_posix_error mapping_table_ERRDOS[] = {
 	{ERRbadfunc, -EINVAL},
 	{ERRbadfile, -ENOENT},
-	{ERRbadpath, -ENOENT},
+	{ERRbadpath, -ENOTDIR},
 	{ERRnofids, -EMFILE},
 	{ERRnoaccess, -EACCES},
 	{ERRbadfid, -EBADF},
@@ -63,26 +63,29 @@ const struct smb_to_posix_error mapping_table_ERRDOS[] = {
 	{ERRnofiles, -ENOENT},
 	{ERRbadshare, -ETXTBSY},
 	{ERRlock, -EACCES},
-	{ERRfilexists, -EINVAL},
+	{ERRunsup, -EINVAL},
+	{ERRnosuchshare,-ENXIO},
+	{ERRfilexists, -EEXIST},
 	{ERRinvparm, -EINVAL},
 	{ERRdiskfull, -ENOSPC},
-	{ERRinvnum, -EINVAL},
+	{ERRinvname, -ENOENT},
 	{ERRdirnotempty, -ENOTEMPTY},
 	{ERRnotlocked, -ENOLCK},
 	{ERRalreadyexists, -EEXIST},
 	{ERRmoredata, -EOVERFLOW},
 	{ErrQuota, -EDQUOT},
 	{ErrNotALink, -ENOLINK},
+	{ERRnetlogonNotStarted,-ENOPROTOOPT},
 	{0, 0}
 };
 
 const struct smb_to_posix_error mapping_table_ERRSRV[] = {
 	{ERRerror, -EIO},
-	{ERRbadpw, -EACCES},
+	{ERRbadpw, -EPERM},
 	{ERRbadtype, -EREMOTE},
 	{ERRaccess, -EACCES},
 	{ERRinvtid, -ENXIO},
-	{ERRinvnetname, -ENOENT},
+	{ERRinvnetname, -ENODEV},
 	{ERRinvdevice, -ENXIO},
 	{ERRqfull, -ENOSPC},
 	{ERRqtoobig, -ENOSPC},
@@ -617,7 +620,7 @@ static const struct {
 	ERRHRD, ERRgeneral, NT_STATUS_EVENTLOG_CANT_START}, {
 	ERRDOS, ERRnoaccess, NT_STATUS_TRUST_FAILURE}, {
 	ERRHRD, ERRgeneral, NT_STATUS_MUTANT_LIMIT_EXCEEDED}, {
-	ERRDOS, 2455, NT_STATUS_NETLOGON_NOT_STARTED}, {
+	ERRDOS, ERRnetlogonNotStarted, NT_STATUS_NETLOGON_NOT_STARTED}, {
 	ERRSRV, 2239, NT_STATUS_ACCOUNT_EXPIRED}, {
 	ERRHRD, ERRgeneral, NT_STATUS_POSSIBLE_DEADLOCK}, {
 	ERRHRD, ERRgeneral, NT_STATUS_NETWORK_CREDENTIAL_CONFLICT}, {

fs/cifs/smberr.h

@@ -59,7 +59,7 @@
 #define ERRfilexists 80		/* The file named in the request already exists. */
 #define ERRinvparm   87
 #define ERRdiskfull  112
-#define ERRinvnum    123
+#define ERRinvname   123
 #define ERRdirnotempty 145
 #define ERRnotlocked   158
 #define ERRalreadyexists 183
@@ -109,4 +109,5 @@ class.*/
 #define ERRbadclient      2240
 #define ERRbadLogonTime   2241
 #define ERRpasswordExpired 2242
+#define ERRnetlogonNotStarted 2455
 #define ERRnosupport       0xFFFF

include/linux/blkdev.h

@@ -179,7 +179,8 @@ struct blk_queue_tag {
 	unsigned long *tag_map;		/* bit map of free/busy tags */
 	struct list_head busy_list;	/* fifo list of busy tags */
 	int busy;			/* current depth */
-	int max_depth;
+	int max_depth;			/* what we will send to device */
+	int real_max_depth;		/* what the array can hold */
 };
 
 struct request_queue
@@ -452,6 +453,7 @@ extern struct request *blk_queue_find_tag(request_queue_t *, int);
 extern void blk_queue_end_tag(request_queue_t *, struct request *);
 extern int blk_queue_init_tags(request_queue_t *, int);
 extern void blk_queue_free_tags(request_queue_t *);
+extern int blk_queue_resize_tags(request_queue_t *, int);
 extern void blk_queue_invalidate_tags(request_queue_t *);
 extern void blk_congestion_wait(int rw, long timeout);