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Commit 30062bd1 authored by David Howells's avatar David Howells
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afs: Implement YFS support in the fs client 

Implement support for talking to YFS-variant fileservers in the cache
manager and the filesystem client.  These implement upgraded services on
the same port as their AFS services.

YFS fileservers provide expanded capabilities over AFS.
Signed-off-by: default avatarDavid Howells <dhowells@redhat.com>
parent d4936803
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Showing with 2500 additions and 28 deletions
fs/afs/Makefile
View file @ 30062bd1
...@@ -33,7 +33,8 @@ kafs-y := \ ...@@ -33,7 +33,8 @@ kafs-y := \
vl_list.o \ vl_list.o \
volume.o \ volume.o \
write.o \ write.o \
xattr.o xattr.o \
yfsclient.o
kafs-$(CONFIG_PROC_FS) += proc.o kafs-$(CONFIG_PROC_FS) += proc.o
obj-$(CONFIG_AFS_FS) := kafs.o obj-$(CONFIG_AFS_FS) := kafs.o
fs/afs/callback.c
View file @ 30062bd1
...@@ -210,12 +210,10 @@ void afs_init_callback_state(struct afs_server *server) ...@@ -210,12 +210,10 @@ void afs_init_callback_state(struct afs_server *server)
/* /*
* actually break a callback * actually break a callback
*/ */
void afs_break_callback(struct afs_vnode *vnode) void __afs_break_callback(struct afs_vnode *vnode)
{ {
_enter(""); _enter("");
write_seqlock(&vnode->cb_lock);
clear_bit(AFS_VNODE_NEW_CONTENT, &vnode->flags); clear_bit(AFS_VNODE_NEW_CONTENT, &vnode->flags);
if (test_and_clear_bit(AFS_VNODE_CB_PROMISED, &vnode->flags)) { if (test_and_clear_bit(AFS_VNODE_CB_PROMISED, &vnode->flags)) {
vnode->cb_break++; vnode->cb_break++;
...@@ -230,7 +228,12 @@ void afs_break_callback(struct afs_vnode *vnode) ...@@ -230,7 +228,12 @@ void afs_break_callback(struct afs_vnode *vnode)
afs_lock_may_be_available(vnode); afs_lock_may_be_available(vnode);
spin_unlock(&vnode->lock); spin_unlock(&vnode->lock);
} }
}
void afs_break_callback(struct afs_vnode *vnode)
{
write_seqlock(&vnode->cb_lock);
__afs_break_callback(vnode);
write_sequnlock(&vnode->cb_lock); write_sequnlock(&vnode->cb_lock);
} }
......
fs/afs/dir.c
View file @ 30062bd1
...@@ -1200,7 +1200,7 @@ static int afs_rmdir(struct inode *dir, struct dentry *dentry) ...@@ -1200,7 +1200,7 @@ static int afs_rmdir(struct inode *dir, struct dentry *dentry)
if (afs_begin_vnode_operation(&fc, dvnode, key)) { if (afs_begin_vnode_operation(&fc, dvnode, key)) {
while (afs_select_fileserver(&fc)) { while (afs_select_fileserver(&fc)) {
fc.cb_break = afs_calc_vnode_cb_break(dvnode); fc.cb_break = afs_calc_vnode_cb_break(dvnode);
afs_fs_remove(&fc, dentry->d_name.name, true, afs_fs_remove(&fc, vnode, dentry->d_name.name, true,
data_version); data_version);
} }
...@@ -1245,7 +1245,9 @@ static int afs_dir_remove_link(struct dentry *dentry, struct key *key, ...@@ -1245,7 +1245,9 @@ static int afs_dir_remove_link(struct dentry *dentry, struct key *key,
if (d_really_is_positive(dentry)) { if (d_really_is_positive(dentry)) {
struct afs_vnode *vnode = AFS_FS_I(d_inode(dentry)); struct afs_vnode *vnode = AFS_FS_I(d_inode(dentry));
if (dir_valid) { if (test_bit(AFS_VNODE_DELETED, &vnode->flags)) {
/* Already done */
} else if (dir_valid) {
drop_nlink(&vnode->vfs_inode); drop_nlink(&vnode->vfs_inode);
if (vnode->vfs_inode.i_nlink == 0) { if (vnode->vfs_inode.i_nlink == 0) {
set_bit(AFS_VNODE_DELETED, &vnode->flags); set_bit(AFS_VNODE_DELETED, &vnode->flags);
...@@ -1274,7 +1276,7 @@ static int afs_dir_remove_link(struct dentry *dentry, struct key *key, ...@@ -1274,7 +1276,7 @@ static int afs_dir_remove_link(struct dentry *dentry, struct key *key,
static int afs_unlink(struct inode *dir, struct dentry *dentry) static int afs_unlink(struct inode *dir, struct dentry *dentry)
{ {
struct afs_fs_cursor fc; struct afs_fs_cursor fc;
struct afs_vnode *dvnode = AFS_FS_I(dir), *vnode; struct afs_vnode *dvnode = AFS_FS_I(dir), *vnode = NULL;
struct key *key; struct key *key;
unsigned long d_version = (unsigned long)dentry->d_fsdata; unsigned long d_version = (unsigned long)dentry->d_fsdata;
u64 data_version = dvnode->status.data_version; u64 data_version = dvnode->status.data_version;
...@@ -1304,7 +1306,18 @@ static int afs_unlink(struct inode *dir, struct dentry *dentry) ...@@ -1304,7 +1306,18 @@ static int afs_unlink(struct inode *dir, struct dentry *dentry)
if (afs_begin_vnode_operation(&fc, dvnode, key)) { if (afs_begin_vnode_operation(&fc, dvnode, key)) {
while (afs_select_fileserver(&fc)) { while (afs_select_fileserver(&fc)) {
fc.cb_break = afs_calc_vnode_cb_break(dvnode); fc.cb_break = afs_calc_vnode_cb_break(dvnode);
afs_fs_remove(&fc, dentry->d_name.name, false,
if (test_bit(AFS_SERVER_FL_IS_YFS, &fc.cbi->server->flags) &&
!test_bit(AFS_SERVER_FL_NO_RM2, &fc.cbi->server->flags)) {
yfs_fs_remove_file2(&fc, vnode, dentry->d_name.name,
data_version);
if (fc.ac.error != -ECONNABORTED ||
fc.ac.abort_code != RXGEN_OPCODE)
continue;
set_bit(AFS_SERVER_FL_NO_RM2, &fc.cbi->server->flags);
}
afs_fs_remove(&fc, vnode, dentry->d_name.name, false,
data_version); data_version);
} }
......
fs/afs/fsclient.c
View file @ 30062bd1
...@@ -17,6 +17,7 @@ ...@@ -17,6 +17,7 @@
#include "internal.h" #include "internal.h"
#include "afs_fs.h" #include "afs_fs.h"
#include "xdr_fs.h" #include "xdr_fs.h"
#include "protocol_yfs.h"
static const struct afs_fid afs_zero_fid; static const struct afs_fid afs_zero_fid;
...@@ -312,14 +313,18 @@ static void xdr_decode_AFSVolSync(const __be32 **_bp, ...@@ -312,14 +313,18 @@ static void xdr_decode_AFSVolSync(const __be32 **_bp,
struct afs_volsync *volsync) struct afs_volsync *volsync)
{ {
const __be32 *bp = *_bp; const __be32 *bp = *_bp;
u32 creation;
volsync->creation = ntohl(*bp++); creation = ntohl(*bp++);
bp++; /* spare2 */ bp++; /* spare2 */
bp++; /* spare3 */ bp++; /* spare3 */
bp++; /* spare4 */ bp++; /* spare4 */
bp++; /* spare5 */ bp++; /* spare5 */
bp++; /* spare6 */ bp++; /* spare6 */
*_bp = bp; *_bp = bp;
if (volsync)
volsync->creation = creation;
} }
/* /*
...@@ -380,6 +385,8 @@ static void xdr_decode_AFSFetchVolumeStatus(const __be32 **_bp, ...@@ -380,6 +385,8 @@ static void xdr_decode_AFSFetchVolumeStatus(const __be32 **_bp,
vs->blocks_in_use = ntohl(*bp++); vs->blocks_in_use = ntohl(*bp++);
vs->part_blocks_avail = ntohl(*bp++); vs->part_blocks_avail = ntohl(*bp++);
vs->part_max_blocks = ntohl(*bp++); vs->part_max_blocks = ntohl(*bp++);
vs->vol_copy_date = 0;
vs->vol_backup_date = 0;
*_bp = bp; *_bp = bp;
} }
...@@ -405,8 +412,7 @@ static int afs_deliver_fs_fetch_status_vnode(struct afs_call *call) ...@@ -405,8 +412,7 @@ static int afs_deliver_fs_fetch_status_vnode(struct afs_call *call)
if (ret < 0) if (ret < 0)
return ret; return ret;
xdr_decode_AFSCallBack(call, vnode, &bp); xdr_decode_AFSCallBack(call, vnode, &bp);
if (call->reply[1]) xdr_decode_AFSVolSync(&bp, call->reply[1]);
xdr_decode_AFSVolSync(&bp, call->reply[1]);
_leave(" = 0 [done]"); _leave(" = 0 [done]");
return 0; return 0;
...@@ -433,6 +439,9 @@ int afs_fs_fetch_file_status(struct afs_fs_cursor *fc, struct afs_volsync *volsy ...@@ -433,6 +439,9 @@ int afs_fs_fetch_file_status(struct afs_fs_cursor *fc, struct afs_volsync *volsy
struct afs_net *net = afs_v2net(vnode); struct afs_net *net = afs_v2net(vnode);
__be32 *bp; __be32 *bp;
if (test_bit(AFS_SERVER_FL_IS_YFS, &fc->cbi->server->flags))
return yfs_fs_fetch_file_status(fc, volsync, new_inode);
_enter(",%x,{%llx:%llu},,", _enter(",%x,{%llx:%llu},,",
key_serial(fc->key), vnode->fid.vid, vnode->fid.vnode); key_serial(fc->key), vnode->fid.vid, vnode->fid.vnode);
...@@ -567,8 +576,7 @@ static int afs_deliver_fs_fetch_data(struct afs_call *call) ...@@ -567,8 +576,7 @@ static int afs_deliver_fs_fetch_data(struct afs_call *call)
if (ret < 0) if (ret < 0)
return ret; return ret;
xdr_decode_AFSCallBack(call, vnode, &bp); xdr_decode_AFSCallBack(call, vnode, &bp);
if (call->reply[1]) xdr_decode_AFSVolSync(&bp, call->reply[1]);
xdr_decode_AFSVolSync(&bp, call->reply[1]);
call->unmarshall++; call->unmarshall++;
...@@ -665,6 +673,9 @@ int afs_fs_fetch_data(struct afs_fs_cursor *fc, struct afs_read *req) ...@@ -665,6 +673,9 @@ int afs_fs_fetch_data(struct afs_fs_cursor *fc, struct afs_read *req)
struct afs_net *net = afs_v2net(vnode); struct afs_net *net = afs_v2net(vnode);
__be32 *bp; __be32 *bp;
if (test_bit(AFS_SERVER_FL_IS_YFS, &fc->cbi->server->flags))
return yfs_fs_fetch_data(fc, req);
if (upper_32_bits(req->pos) || if (upper_32_bits(req->pos) ||
upper_32_bits(req->len) || upper_32_bits(req->len) ||
upper_32_bits(req->pos + req->len)) upper_32_bits(req->pos + req->len))
...@@ -765,6 +776,15 @@ int afs_fs_create(struct afs_fs_cursor *fc, ...@@ -765,6 +776,15 @@ int afs_fs_create(struct afs_fs_cursor *fc,
size_t namesz, reqsz, padsz; size_t namesz, reqsz, padsz;
__be32 *bp; __be32 *bp;
if (test_bit(AFS_SERVER_FL_IS_YFS, &fc->cbi->server->flags)){
if (S_ISDIR(mode))
return yfs_fs_make_dir(fc, name, mode, current_data_version,
newfid, newstatus, newcb);
else
return yfs_fs_create_file(fc, name, mode, current_data_version,
newfid, newstatus, newcb);
}
_enter(""); _enter("");
namesz = strlen(name); namesz = strlen(name);
...@@ -857,15 +877,18 @@ static const struct afs_call_type afs_RXFSRemoveDir = { ...@@ -857,15 +877,18 @@ static const struct afs_call_type afs_RXFSRemoveDir = {
/* /*
* remove a file or directory * remove a file or directory
*/ */
int afs_fs_remove(struct afs_fs_cursor *fc, const char *name, bool isdir, int afs_fs_remove(struct afs_fs_cursor *fc, struct afs_vnode *vnode,
u64 current_data_version) const char *name, bool isdir, u64 current_data_version)
{ {
struct afs_vnode *vnode = fc->vnode; struct afs_vnode *dvnode = fc->vnode;
struct afs_call *call; struct afs_call *call;
struct afs_net *net = afs_v2net(vnode); struct afs_net *net = afs_v2net(dvnode);
size_t namesz, reqsz, padsz; size_t namesz, reqsz, padsz;
__be32 *bp; __be32 *bp;
if (test_bit(AFS_SERVER_FL_IS_YFS, &fc->cbi->server->flags))
return yfs_fs_remove(fc, vnode, name, isdir, current_data_version);
_enter(""); _enter("");
namesz = strlen(name); namesz = strlen(name);
...@@ -879,15 +902,16 @@ int afs_fs_remove(struct afs_fs_cursor *fc, const char *name, bool isdir, ...@@ -879,15 +902,16 @@ int afs_fs_remove(struct afs_fs_cursor *fc, const char *name, bool isdir,
return -ENOMEM; return -ENOMEM;
call->key = fc->key; call->key = fc->key;
call->reply[0] = vnode; call->reply[0] = dvnode;
call->reply[1] = vnode;
call->expected_version = current_data_version + 1; call->expected_version = current_data_version + 1;
/* marshall the parameters */ /* marshall the parameters */
bp = call->request; bp = call->request;
*bp++ = htonl(isdir ? FSREMOVEDIR : FSREMOVEFILE); *bp++ = htonl(isdir ? FSREMOVEDIR : FSREMOVEFILE);
*bp++ = htonl(vnode->fid.vid); *bp++ = htonl(dvnode->fid.vid);
*bp++ = htonl(vnode->fid.vnode); *bp++ = htonl(dvnode->fid.vnode);
*bp++ = htonl(vnode->fid.unique); *bp++ = htonl(dvnode->fid.unique);
*bp++ = htonl(namesz); *bp++ = htonl(namesz);
memcpy(bp, name, namesz); memcpy(bp, name, namesz);
bp = (void *) bp + namesz; bp = (void *) bp + namesz;
...@@ -897,7 +921,7 @@ int afs_fs_remove(struct afs_fs_cursor *fc, const char *name, bool isdir, ...@@ -897,7 +921,7 @@ int afs_fs_remove(struct afs_fs_cursor *fc, const char *name, bool isdir,
} }
afs_use_fs_server(call, fc->cbi); afs_use_fs_server(call, fc->cbi);
trace_afs_make_fs_call(call, &vnode->fid); trace_afs_make_fs_call(call, &dvnode->fid);
return afs_make_call(&fc->ac, call, GFP_NOFS, false); return afs_make_call(&fc->ac, call, GFP_NOFS, false);
} }
...@@ -953,6 +977,9 @@ int afs_fs_link(struct afs_fs_cursor *fc, struct afs_vnode *vnode, ...@@ -953,6 +977,9 @@ int afs_fs_link(struct afs_fs_cursor *fc, struct afs_vnode *vnode,
size_t namesz, reqsz, padsz; size_t namesz, reqsz, padsz;
__be32 *bp; __be32 *bp;
if (test_bit(AFS_SERVER_FL_IS_YFS, &fc->cbi->server->flags))
return yfs_fs_link(fc, vnode, name, current_data_version);
_enter(""); _enter("");
namesz = strlen(name); namesz = strlen(name);
...@@ -1047,6 +1074,10 @@ int afs_fs_symlink(struct afs_fs_cursor *fc, ...@@ -1047,6 +1074,10 @@ int afs_fs_symlink(struct afs_fs_cursor *fc,
size_t namesz, reqsz, padsz, c_namesz, c_padsz; size_t namesz, reqsz, padsz, c_namesz, c_padsz;
__be32 *bp; __be32 *bp;
if (test_bit(AFS_SERVER_FL_IS_YFS, &fc->cbi->server->flags))
return yfs_fs_symlink(fc, name, contents, current_data_version,
newfid, newstatus);
_enter(""); _enter("");
namesz = strlen(name); namesz = strlen(name);
...@@ -1159,6 +1190,12 @@ int afs_fs_rename(struct afs_fs_cursor *fc, ...@@ -1159,6 +1190,12 @@ int afs_fs_rename(struct afs_fs_cursor *fc,
size_t reqsz, o_namesz, o_padsz, n_namesz, n_padsz; size_t reqsz, o_namesz, o_padsz, n_namesz, n_padsz;
__be32 *bp; __be32 *bp;
if (test_bit(AFS_SERVER_FL_IS_YFS, &fc->cbi->server->flags))
return yfs_fs_rename(fc, orig_name,
new_dvnode, new_name,
current_orig_data_version,
current_new_data_version);
_enter(""); _enter("");
o_namesz = strlen(orig_name); o_namesz = strlen(orig_name);
...@@ -1329,6 +1366,9 @@ int afs_fs_store_data(struct afs_fs_cursor *fc, struct address_space *mapping, ...@@ -1329,6 +1366,9 @@ int afs_fs_store_data(struct afs_fs_cursor *fc, struct address_space *mapping,
loff_t size, pos, i_size; loff_t size, pos, i_size;
__be32 *bp; __be32 *bp;
if (test_bit(AFS_SERVER_FL_IS_YFS, &fc->cbi->server->flags))
return yfs_fs_store_data(fc, mapping, first, last, offset, to);
_enter(",%x,{%llx:%llu},,", _enter(",%x,{%llx:%llu},,",
key_serial(fc->key), vnode->fid.vid, vnode->fid.vnode); key_serial(fc->key), vnode->fid.vid, vnode->fid.vnode);
...@@ -1544,6 +1584,9 @@ int afs_fs_setattr(struct afs_fs_cursor *fc, struct iattr *attr) ...@@ -1544,6 +1584,9 @@ int afs_fs_setattr(struct afs_fs_cursor *fc, struct iattr *attr)
struct afs_net *net = afs_v2net(vnode); struct afs_net *net = afs_v2net(vnode);
__be32 *bp; __be32 *bp;
if (test_bit(AFS_SERVER_FL_IS_YFS, &fc->cbi->server->flags))
return yfs_fs_setattr(fc, attr);
if (attr->ia_valid & ATTR_SIZE) if (attr->ia_valid & ATTR_SIZE)
return afs_fs_setattr_size(fc, attr); return afs_fs_setattr_size(fc, attr);
...@@ -1728,6 +1771,9 @@ int afs_fs_get_volume_status(struct afs_fs_cursor *fc, ...@@ -1728,6 +1771,9 @@ int afs_fs_get_volume_status(struct afs_fs_cursor *fc,
__be32 *bp; __be32 *bp;
void *tmpbuf; void *tmpbuf;
if (test_bit(AFS_SERVER_FL_IS_YFS, &fc->cbi->server->flags))
return yfs_fs_get_volume_status(fc, vs);
_enter(""); _enter("");
tmpbuf = kmalloc(AFSOPAQUEMAX, GFP_KERNEL); tmpbuf = kmalloc(AFSOPAQUEMAX, GFP_KERNEL);
...@@ -1817,6 +1863,9 @@ int afs_fs_set_lock(struct afs_fs_cursor *fc, afs_lock_type_t type) ...@@ -1817,6 +1863,9 @@ int afs_fs_set_lock(struct afs_fs_cursor *fc, afs_lock_type_t type)
struct afs_net *net = afs_v2net(vnode); struct afs_net *net = afs_v2net(vnode);
__be32 *bp; __be32 *bp;
if (test_bit(AFS_SERVER_FL_IS_YFS, &fc->cbi->server->flags))
return yfs_fs_set_lock(fc, type);
_enter(""); _enter("");
call = afs_alloc_flat_call(net, &afs_RXFSSetLock, 5 * 4, 6 * 4); call = afs_alloc_flat_call(net, &afs_RXFSSetLock, 5 * 4, 6 * 4);
...@@ -1849,6 +1898,9 @@ int afs_fs_extend_lock(struct afs_fs_cursor *fc) ...@@ -1849,6 +1898,9 @@ int afs_fs_extend_lock(struct afs_fs_cursor *fc)
struct afs_net *net = afs_v2net(vnode); struct afs_net *net = afs_v2net(vnode);
__be32 *bp; __be32 *bp;
if (test_bit(AFS_SERVER_FL_IS_YFS, &fc->cbi->server->flags))
return yfs_fs_extend_lock(fc);
_enter(""); _enter("");
call = afs_alloc_flat_call(net, &afs_RXFSExtendLock, 4 * 4, 6 * 4); call = afs_alloc_flat_call(net, &afs_RXFSExtendLock, 4 * 4, 6 * 4);
...@@ -1880,6 +1932,9 @@ int afs_fs_release_lock(struct afs_fs_cursor *fc) ...@@ -1880,6 +1932,9 @@ int afs_fs_release_lock(struct afs_fs_cursor *fc)
struct afs_net *net = afs_v2net(vnode); struct afs_net *net = afs_v2net(vnode);
__be32 *bp; __be32 *bp;
if (test_bit(AFS_SERVER_FL_IS_YFS, &fc->cbi->server->flags))
return yfs_fs_release_lock(fc);
_enter(""); _enter("");
call = afs_alloc_flat_call(net, &afs_RXFSReleaseLock, 4 * 4, 6 * 4); call = afs_alloc_flat_call(net, &afs_RXFSReleaseLock, 4 * 4, 6 * 4);
...@@ -1951,6 +2006,7 @@ int afs_fs_give_up_all_callbacks(struct afs_net *net, ...@@ -1951,6 +2006,7 @@ int afs_fs_give_up_all_callbacks(struct afs_net *net,
*/ */
static int afs_deliver_fs_get_capabilities(struct afs_call *call) static int afs_deliver_fs_get_capabilities(struct afs_call *call)
{ {
struct afs_server *server = call->reply[0];
u32 count; u32 count;
int ret; int ret;
...@@ -1986,6 +2042,11 @@ static int afs_deliver_fs_get_capabilities(struct afs_call *call) ...@@ -1986,6 +2042,11 @@ static int afs_deliver_fs_get_capabilities(struct afs_call *call)
break; break;
} }
if (call->service_id == YFS_FS_SERVICE)
set_bit(AFS_SERVER_FL_IS_YFS, &server->flags);
else
clear_bit(AFS_SERVER_FL_IS_YFS, &server->flags);
_leave(" = 0 [done]"); _leave(" = 0 [done]");
return 0; return 0;
} }
...@@ -2019,6 +2080,8 @@ int afs_fs_get_capabilities(struct afs_net *net, ...@@ -2019,6 +2080,8 @@ int afs_fs_get_capabilities(struct afs_net *net,
return -ENOMEM; return -ENOMEM;
call->key = key; call->key = key;
call->reply[0] = server;
call->upgrade = true;
/* marshall the parameters */ /* marshall the parameters */
bp = call->request; bp = call->request;
...@@ -2054,8 +2117,7 @@ static int afs_deliver_fs_fetch_status(struct afs_call *call) ...@@ -2054,8 +2117,7 @@ static int afs_deliver_fs_fetch_status(struct afs_call *call)
if (ret < 0) if (ret < 0)
return ret; return ret;
xdr_decode_AFSCallBack_raw(call, &bp, callback); xdr_decode_AFSCallBack_raw(call, &bp, callback);
if (volsync) xdr_decode_AFSVolSync(&bp, volsync);
xdr_decode_AFSVolSync(&bp, volsync);
_leave(" = 0 [done]"); _leave(" = 0 [done]");
return 0; return 0;
...@@ -2084,6 +2146,9 @@ int afs_fs_fetch_status(struct afs_fs_cursor *fc, ...@@ -2084,6 +2146,9 @@ int afs_fs_fetch_status(struct afs_fs_cursor *fc,
struct afs_call *call; struct afs_call *call;
__be32 *bp; __be32 *bp;
if (test_bit(AFS_SERVER_FL_IS_YFS, &fc->cbi->server->flags))
return yfs_fs_fetch_status(fc, net, fid, status, callback, volsync);
_enter(",%x,{%llx:%llu},,", _enter(",%x,{%llx:%llu},,",
key_serial(fc->key), fid->vid, fid->vnode); key_serial(fc->key), fid->vid, fid->vnode);
...@@ -2218,8 +2283,7 @@ static int afs_deliver_fs_inline_bulk_status(struct afs_call *call) ...@@ -2218,8 +2283,7 @@ static int afs_deliver_fs_inline_bulk_status(struct afs_call *call)
return ret; return ret;
bp = call->buffer; bp = call->buffer;
if (call->reply[3]) xdr_decode_AFSVolSync(&bp, call->reply[3]);
xdr_decode_AFSVolSync(&bp, call->reply[3]);
call->unmarshall++; call->unmarshall++;
...@@ -2256,6 +2320,10 @@ int afs_fs_inline_bulk_status(struct afs_fs_cursor *fc, ...@@ -2256,6 +2320,10 @@ int afs_fs_inline_bulk_status(struct afs_fs_cursor *fc,
__be32 *bp; __be32 *bp;
int i; int i;
if (test_bit(AFS_SERVER_FL_IS_YFS, &fc->cbi->server->flags))
return yfs_fs_inline_bulk_status(fc, net, fids, statuses, callbacks,
nr_fids, volsync);
_enter(",%x,{%llx:%llu},%u", _enter(",%x,{%llx:%llu},%u",
key_serial(fc->key), fids[0].vid, fids[1].vnode, nr_fids); key_serial(fc->key), fids[0].vid, fids[1].vnode, nr_fids);
......
fs/afs/internal.h
View file @ 30062bd1
...@@ -459,6 +459,8 @@ struct afs_server { ...@@ -459,6 +459,8 @@ struct afs_server {
#define AFS_SERVER_FL_PROBING 6 /* Fileserver is being probed */ #define AFS_SERVER_FL_PROBING 6 /* Fileserver is being probed */
#define AFS_SERVER_FL_NO_IBULK 7 /* Fileserver doesn't support FS.InlineBulkStatus */ #define AFS_SERVER_FL_NO_IBULK 7 /* Fileserver doesn't support FS.InlineBulkStatus */
#define AFS_SERVER_FL_MAY_HAVE_CB 8 /* May have callbacks on this fileserver */ #define AFS_SERVER_FL_MAY_HAVE_CB 8 /* May have callbacks on this fileserver */
#define AFS_SERVER_FL_IS_YFS 9 /* Server is YFS not AFS */
#define AFS_SERVER_FL_NO_RM2 10 /* Fileserver doesn't support YFS.RemoveFile2 */
atomic_t usage; atomic_t usage;
u32 addr_version; /* Address list version */ u32 addr_version; /* Address list version */
...@@ -751,6 +753,7 @@ extern struct fscache_cookie_def afs_vnode_cache_index_def; ...@@ -751,6 +753,7 @@ extern struct fscache_cookie_def afs_vnode_cache_index_def;
* callback.c * callback.c
*/ */
extern void afs_init_callback_state(struct afs_server *); extern void afs_init_callback_state(struct afs_server *);
extern void __afs_break_callback(struct afs_vnode *);
extern void afs_break_callback(struct afs_vnode *); extern void afs_break_callback(struct afs_vnode *);
extern void afs_break_callbacks(struct afs_server *, size_t, struct afs_callback_break*); extern void afs_break_callbacks(struct afs_server *, size_t, struct afs_callback_break*);
...@@ -864,7 +867,7 @@ extern int afs_fs_give_up_callbacks(struct afs_net *, struct afs_server *); ...@@ -864,7 +867,7 @@ extern int afs_fs_give_up_callbacks(struct afs_net *, struct afs_server *);
extern int afs_fs_fetch_data(struct afs_fs_cursor *, struct afs_read *); extern int afs_fs_fetch_data(struct afs_fs_cursor *, struct afs_read *);
extern int afs_fs_create(struct afs_fs_cursor *, const char *, umode_t, u64, extern int afs_fs_create(struct afs_fs_cursor *, const char *, umode_t, u64,
struct afs_fid *, struct afs_file_status *, struct afs_callback *); struct afs_fid *, struct afs_file_status *, struct afs_callback *);
extern int afs_fs_remove(struct afs_fs_cursor *, const char *, bool, u64); extern int afs_fs_remove(struct afs_fs_cursor *, struct afs_vnode *, const char *, bool, u64);
extern int afs_fs_link(struct afs_fs_cursor *, struct afs_vnode *, const char *, u64); extern int afs_fs_link(struct afs_fs_cursor *, struct afs_vnode *, const char *, u64);
extern int afs_fs_symlink(struct afs_fs_cursor *, const char *, const char *, u64, extern int afs_fs_symlink(struct afs_fs_cursor *, const char *, const char *, u64,
struct afs_fid *, struct afs_file_status *); struct afs_fid *, struct afs_file_status *);
...@@ -1228,6 +1231,36 @@ extern int afs_launder_page(struct page *); ...@@ -1228,6 +1231,36 @@ extern int afs_launder_page(struct page *);
extern const struct xattr_handler *afs_xattr_handlers[]; extern const struct xattr_handler *afs_xattr_handlers[];
extern ssize_t afs_listxattr(struct dentry *, char *, size_t); extern ssize_t afs_listxattr(struct dentry *, char *, size_t);
/*
* yfsclient.c
*/
extern int yfs_fs_fetch_file_status(struct afs_fs_cursor *, struct afs_volsync *, bool);
extern int yfs_fs_fetch_data(struct afs_fs_cursor *, struct afs_read *);
extern int yfs_fs_create_file(struct afs_fs_cursor *, const char *, umode_t, u64,
struct afs_fid *, struct afs_file_status *, struct afs_callback *);
extern int yfs_fs_make_dir(struct afs_fs_cursor *, const char *, umode_t, u64,
struct afs_fid *, struct afs_file_status *, struct afs_callback *);
extern int yfs_fs_remove_file2(struct afs_fs_cursor *, struct afs_vnode *, const char *, u64);
extern int yfs_fs_remove(struct afs_fs_cursor *, struct afs_vnode *, const char *, bool, u64);
extern int yfs_fs_link(struct afs_fs_cursor *, struct afs_vnode *, const char *, u64);
extern int yfs_fs_symlink(struct afs_fs_cursor *, const char *, const char *, u64,
struct afs_fid *, struct afs_file_status *);
extern int yfs_fs_rename(struct afs_fs_cursor *, const char *,
struct afs_vnode *, const char *, u64, u64);
extern int yfs_fs_store_data(struct afs_fs_cursor *, struct address_space *,
pgoff_t, pgoff_t, unsigned, unsigned);
extern int yfs_fs_setattr(struct afs_fs_cursor *, struct iattr *);
extern int yfs_fs_get_volume_status(struct afs_fs_cursor *, struct afs_volume_status *);
extern int yfs_fs_set_lock(struct afs_fs_cursor *, afs_lock_type_t);
extern int yfs_fs_extend_lock(struct afs_fs_cursor *);
extern int yfs_fs_release_lock(struct afs_fs_cursor *);
extern int yfs_fs_fetch_status(struct afs_fs_cursor *, struct afs_net *,
struct afs_fid *, struct afs_file_status *,
struct afs_callback *, struct afs_volsync *);
extern int yfs_fs_inline_bulk_status(struct afs_fs_cursor *, struct afs_net *,
struct afs_fid *, struct afs_file_status *,
struct afs_callback *, unsigned int,
struct afs_volsync *);
/* /*
* Miscellaneous inline functions. * Miscellaneous inline functions.
......
fs/afs/protocol_yfs.h
View file @ 30062bd1
...@@ -30,6 +30,36 @@ enum YFS_CM_Operations { ...@@ -30,6 +30,36 @@ enum YFS_CM_Operations {
YFSCBCallBack = 64204, YFSCBCallBack = 64204,
}; };
enum YFS_FS_Operations {
YFSFETCHACL = 64131, /* YFS Fetch file ACL */
YFSFETCHSTATUS = 64132, /* YFS Fetch file status */
YFSSTOREACL = 64134, /* YFS Store file ACL */
YFSSTORESTATUS = 64135, /* YFS Store file status */
YFSREMOVEFILE = 64136, /* YFS Remove a file */
YFSCREATEFILE = 64137, /* YFS Create a file */
YFSRENAME = 64138, /* YFS Rename or move a file or directory */
YFSSYMLINK = 64139, /* YFS Create a symbolic link */
YFSLINK = 64140, /* YFS Create a hard link */
YFSMAKEDIR = 64141, /* YFS Create a directory */
YFSREMOVEDIR = 64142, /* YFS Remove a directory */
YFSGETVOLUMESTATUS = 64149, /* YFS Get volume status information */
YFSSETVOLUMESTATUS = 64150, /* YFS Set volume status information */
YFSSETLOCK = 64156, /* YFS Request a file lock */
YFSEXTENDLOCK = 64157, /* YFS Extend a file lock */
YFSRELEASELOCK = 64158, /* YFS Release a file lock */
YFSLOOKUP = 64161, /* YFS lookup file in directory */
YFSFLUSHCPS = 64165,
YFSFETCHOPAQUEACL = 64168,
YFSWHOAMI = 64170,
YFSREMOVEACL = 64171,
YFSREMOVEFILE2 = 64173,
YFSSTOREOPAQUEACL2 = 64174,
YFSINLINEBULKSTATUS = 64536, /* YFS Fetch multiple file statuses with errors */
YFSFETCHDATA64 = 64537, /* YFS Fetch file data */
YFSSTOREDATA64 = 64538, /* YFS Store file data */
YFSUPDATESYMLINK = 64540,
};
struct yfs_xdr_u64 { struct yfs_xdr_u64 {
__be32 msw; __be32 msw;
__be32 lsw; __be32 lsw;
...@@ -55,3 +85,79 @@ struct yfs_xdr_YFSFid { ...@@ -55,3 +85,79 @@ struct yfs_xdr_YFSFid {
struct yfs_xdr_u64 volume; struct yfs_xdr_u64 volume;
struct yfs_xdr_vnode vnode; struct yfs_xdr_vnode vnode;
} __packed; } __packed;
struct yfs_xdr_YFSFetchStatus {
__be32 type;
__be32 nlink;
struct yfs_xdr_u64 size;
struct yfs_xdr_u64 data_version;
struct yfs_xdr_u64 author;
struct yfs_xdr_u64 owner;
struct yfs_xdr_u64 group;
__be32 mode;
__be32 caller_access;
__be32 anon_access;
struct yfs_xdr_vnode parent;
__be32 data_access_protocol;
struct yfs_xdr_u64 mtime_client;
struct yfs_xdr_u64 mtime_server;
__be32 lock_count;
__be32 abort_code;
} __packed;
struct yfs_xdr_YFSCallBack {
__be32 version;
struct yfs_xdr_u64 expiration_time;
__be32 type;
} __packed;
struct yfs_xdr_YFSStoreStatus {
__be32 mask;
__be32 mode;
struct yfs_xdr_u64 mtime_client;
struct yfs_xdr_u64 owner;
struct yfs_xdr_u64 group;
} __packed;
struct yfs_xdr_RPCFlags {
__be32 rpc_flags;
} __packed;
struct yfs_xdr_YFSVolSync {
struct yfs_xdr_u64 vol_creation_date;
struct yfs_xdr_u64 vol_update_date;
struct yfs_xdr_u64 max_quota;
struct yfs_xdr_u64 blocks_in_use;
struct yfs_xdr_u64 blocks_avail;
} __packed;
enum yfs_volume_type {
yfs_volume_type_ro = 0,
yfs_volume_type_rw = 1,
};
#define yfs_FVSOnline 0x1
#define yfs_FVSInservice 0x2
#define yfs_FVSBlessed 0x4
#define yfs_FVSNeedsSalvage 0x8
struct yfs_xdr_YFSFetchVolumeStatus {
struct yfs_xdr_u64 vid;
struct yfs_xdr_u64 parent_id;
__be32 flags;
__be32 type;
struct yfs_xdr_u64 max_quota;
struct yfs_xdr_u64 blocks_in_use;
struct yfs_xdr_u64 part_blocks_avail;
struct yfs_xdr_u64 part_max_blocks;
struct yfs_xdr_u64 vol_copy_date;
struct yfs_xdr_u64 vol_backup_date;
} __packed;
struct yfs_xdr_YFSStoreVolumeStatus {
__be32 mask;
struct yfs_xdr_u64 min_quota;
struct yfs_xdr_u64 max_quota;
struct yfs_xdr_u64 file_quota;
} __packed;
fs/afs/server.c
View file @ 30062bd1
...@@ -13,6 +13,7 @@ ...@@ -13,6 +13,7 @@
#include <linux/slab.h> #include <linux/slab.h>
#include "afs_fs.h" #include "afs_fs.h"
#include "internal.h" #include "internal.h"
#include "protocol_yfs.h"
static unsigned afs_server_gc_delay = 10; /* Server record timeout in seconds */ static unsigned afs_server_gc_delay = 10; /* Server record timeout in seconds */
static unsigned afs_server_update_delay = 30; /* Time till VLDB recheck in secs */ static unsigned afs_server_update_delay = 30; /* Time till VLDB recheck in secs */
...@@ -513,6 +514,8 @@ void afs_purge_servers(struct afs_net *net) ...@@ -513,6 +514,8 @@ void afs_purge_servers(struct afs_net *net)
*/ */
static bool afs_do_probe_fileserver(struct afs_fs_cursor *fc) static bool afs_do_probe_fileserver(struct afs_fs_cursor *fc)
{ {
int i;
_enter(""); _enter("");
fc->ac.addr = NULL; fc->ac.addr = NULL;
...@@ -526,6 +529,11 @@ static bool afs_do_probe_fileserver(struct afs_fs_cursor *fc) ...@@ -526,6 +529,11 @@ static bool afs_do_probe_fileserver(struct afs_fs_cursor *fc)
&fc->ac, fc->key); &fc->ac, fc->key);
switch (fc->ac.error) { switch (fc->ac.error) {
case 0: case 0:
if (test_bit(AFS_SERVER_FL_IS_YFS, &fc->cbi->server->flags)) {
for (i = 0; i < fc->ac.alist->nr_addrs; i++)
fc->ac.alist->addrs[i].srx_service =
YFS_FS_SERVICE;
}
afs_end_cursor(&fc->ac); afs_end_cursor(&fc->ac);
set_bit(AFS_SERVER_FL_PROBED, &fc->cbi->server->flags); set_bit(AFS_SERVER_FL_PROBED, &fc->cbi->server->flags);
return true; return true;
......
fs/afs/yfsclient.c 0 → 100644
View file @ 30062bd1
/* YFS File Server client stubs
*
* Copyright (C) 2018 Red Hat, Inc. All Rights Reserved.
* Written by David Howells (dhowells@redhat.com)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public Licence
* as published by the Free Software Foundation; either version
* 2 of the Licence, or (at your option) any later version.
*/
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/sched.h>
#include <linux/circ_buf.h>
#include <linux/iversion.h>
#include "internal.h"
#include "afs_fs.h"
#include "xdr_fs.h"
#include "protocol_yfs.h"
static const struct afs_fid afs_zero_fid;
static inline void afs_use_fs_server(struct afs_call *call, struct afs_cb_interest *cbi)
{
call->cbi = afs_get_cb_interest(cbi);
}
#define xdr_size(x) (sizeof(*x) / sizeof(__be32))
static void xdr_decode_YFSFid(const __be32 **_bp, struct afs_fid *fid)
{
const struct yfs_xdr_YFSFid *x = (const void *)*_bp;
fid->vid = xdr_to_u64(x->volume);
fid->vnode = xdr_to_u64(x->vnode.lo);
fid->vnode_hi = ntohl(x->vnode.hi);
fid->unique = ntohl(x->vnode.unique);
*_bp += xdr_size(x);
}
static __be32 *xdr_encode_u32(__be32 *bp, u32 n)
{
*bp++ = htonl(n);
return bp;
}
static __be32 *xdr_encode_u64(__be32 *bp, u64 n)
{
struct yfs_xdr_u64 *x = (void *)bp;
*x = u64_to_xdr(n);
return bp + xdr_size(x);
}
static __be32 *xdr_encode_YFSFid(__be32 *bp, struct afs_fid *fid)
{
struct yfs_xdr_YFSFid *x = (void *)bp;
x->volume = u64_to_xdr(fid->vid);
x->vnode.lo = u64_to_xdr(fid->vnode);
x->vnode.hi = htonl(fid->vnode_hi);
x->vnode.unique = htonl(fid->unique);
return bp + xdr_size(x);
}
static size_t xdr_strlen(unsigned int len)
{
return sizeof(__be32) + round_up(len, sizeof(__be32));
}
static __be32 *xdr_encode_string(__be32 *bp, const char *p, unsigned int len)
{
bp = xdr_encode_u32(bp, len);
bp = memcpy(bp, p, len);
if (len & 3) {
unsigned int pad = 4 - (len & 3);
memset((u8 *)bp + len, 0, pad);
len += pad;
}
return bp + len / sizeof(__be32);
}
static s64 linux_to_yfs_time(const struct timespec64 *t)
{
/* Convert to 100ns intervals. */
return (u64)t->tv_sec * 10000000 + t->tv_nsec/100;
}
static __be32 *xdr_encode_YFSStoreStatus_mode(__be32 *bp, mode_t mode)
{
struct yfs_xdr_YFSStoreStatus *x = (void *)bp;
x->mask = htonl(AFS_SET_MODE);
x->mode = htonl(mode & S_IALLUGO);
x->mtime_client = u64_to_xdr(0);
x->owner = u64_to_xdr(0);
x->group = u64_to_xdr(0);
return bp + xdr_size(x);
}
static __be32 *xdr_encode_YFSStoreStatus_mtime(__be32 *bp, const struct timespec64 *t)
{
struct yfs_xdr_YFSStoreStatus *x = (void *)bp;
s64 mtime = linux_to_yfs_time(t);
x->mask = htonl(AFS_SET_MTIME);
x->mode = htonl(0);
x->mtime_client = u64_to_xdr(mtime);
x->owner = u64_to_xdr(0);
x->group = u64_to_xdr(0);
return bp + xdr_size(x);
}
/*
* Convert a signed 100ns-resolution 64-bit time into a timespec.
*/
static struct timespec64 yfs_time_to_linux(s64 t)
{
struct timespec64 ts;
u64 abs_t;
/*
* Unfortunately can not use normal 64 bit division on 32 bit arch, but
* the alternative, do_div, does not work with negative numbers so have
* to special case them
*/
if (t < 0) {
abs_t = -t;
ts.tv_nsec = (time64_t)(do_div(abs_t, 10000000) * 100);
ts.tv_nsec = -ts.tv_nsec;
ts.tv_sec = -abs_t;
} else {
abs_t = t;
ts.tv_nsec = (time64_t)do_div(abs_t, 10000000) * 100;
ts.tv_sec = abs_t;
}
return ts;
}
static struct timespec64 xdr_to_time(const struct yfs_xdr_u64 xdr)
{
s64 t = xdr_to_u64(xdr);
return yfs_time_to_linux(t);
}
static void yfs_check_req(struct afs_call *call, __be32 *bp)
{
size_t len = (void *)bp - call->request;
if (len > call->request_size)
pr_err("kAFS: %s: Request buffer overflow (%zu>%u)\n",
call->type->name, len, call->request_size);
else if (len < call->request_size)
pr_warning("kAFS: %s: Request buffer underflow (%zu<%u)\n",
call->type->name, len, call->request_size);
}
/*
* Dump a bad file status record.
*/
static void xdr_dump_bad(const __be32 *bp)
{
__be32 x[4];
int i;
pr_notice("YFS XDR: Bad status record\n");
for (i = 0; i < 5 * 4 * 4; i += 16) {
memcpy(x, bp, 16);
bp += 4;
pr_notice("%03x: %08x %08x %08x %08x\n",
i, ntohl(x[0]), ntohl(x[1]), ntohl(x[2]), ntohl(x[3]));
}
memcpy(x, bp, 4);
pr_notice("0x50: %08x\n", ntohl(x[0]));
}
/*
* Decode a YFSFetchStatus block
*/
static int xdr_decode_YFSFetchStatus(struct afs_call *call,
const __be32 **_bp,
struct afs_file_status *status,
struct afs_vnode *vnode,
const afs_dataversion_t *expected_version,
struct afs_read *read_req)
{
const struct yfs_xdr_YFSFetchStatus *xdr = (const void *)*_bp;
u32 type;
u8 flags = 0;
status->abort_code = ntohl(xdr->abort_code);
if (status->abort_code != 0) {
if (vnode && status->abort_code == VNOVNODE) {
set_bit(AFS_VNODE_DELETED, &vnode->flags);
status->nlink = 0;
__afs_break_callback(vnode);
}
return 0;
}
type = ntohl(xdr->type);
switch (type) {
case AFS_FTYPE_FILE:
case AFS_FTYPE_DIR:
case AFS_FTYPE_SYMLINK:
if (type != status->type &&
vnode &&
!test_bit(AFS_VNODE_UNSET, &vnode->flags)) {
pr_warning("Vnode %llx:%llx:%x changed type %u to %u\n",
vnode->fid.vid,
vnode->fid.vnode,
vnode->fid.unique,
status->type, type);
goto bad;
}
status->type = type;
break;
default:
goto bad;
}
#define EXTRACT_M4(FIELD) \
do { \
u32 x = ntohl(xdr->FIELD); \
if (status->FIELD != x) { \
flags |= AFS_VNODE_META_CHANGED; \
status->FIELD = x; \
} \
} while (0)
#define EXTRACT_M8(FIELD) \
do { \
u64 x = xdr_to_u64(xdr->FIELD); \
if (status->FIELD != x) { \
flags |= AFS_VNODE_META_CHANGED; \
status->FIELD = x; \
} \
} while (0)
#define EXTRACT_D8(FIELD) \
do { \
u64 x = xdr_to_u64(xdr->FIELD); \
if (status->FIELD != x) { \
flags |= AFS_VNODE_DATA_CHANGED; \
status->FIELD = x; \
} \
} while (0)
EXTRACT_M4(nlink);
EXTRACT_D8(size);
EXTRACT_D8(data_version);
EXTRACT_M8(author);
EXTRACT_M8(owner);
EXTRACT_M8(group);
EXTRACT_M4(mode);
EXTRACT_M4(caller_access); /* call ticket dependent */
EXTRACT_M4(anon_access);
status->mtime_client = xdr_to_time(xdr->mtime_client);
status->mtime_server = xdr_to_time(xdr->mtime_server);
status->lock_count = ntohl(xdr->lock_count);
if (read_req) {
read_req->data_version = status->data_version;
read_req->file_size = status->size;
}
*_bp += xdr_size(xdr);
if (vnode) {
if (test_bit(AFS_VNODE_UNSET, &vnode->flags))
flags |= AFS_VNODE_NOT_YET_SET;
afs_update_inode_from_status(vnode, status, expected_version,
flags);
}
return 0;
bad:
xdr_dump_bad(*_bp);
return afs_protocol_error(call, -EBADMSG, afs_eproto_bad_status);
}
/*
* Decode the file status. We need to lock the target vnode if we're going to
* update its status so that stat() sees the attributes update atomically.
*/
static int yfs_decode_status(struct afs_call *call,
const __be32 **_bp,
struct afs_file_status *status,
struct afs_vnode *vnode,
const afs_dataversion_t *expected_version,
struct afs_read *read_req)
{
int ret;
if (!vnode)
return xdr_decode_YFSFetchStatus(call, _bp, status, vnode,
expected_version, read_req);
write_seqlock(&vnode->cb_lock);
ret = xdr_decode_YFSFetchStatus(call, _bp, status, vnode,
expected_version, read_req);
write_sequnlock(&vnode->cb_lock);
return ret;
}
/*
* Decode a YFSCallBack block
*/
static void xdr_decode_YFSCallBack(struct afs_call *call,
struct afs_vnode *vnode,
const __be32 **_bp)
{
struct yfs_xdr_YFSCallBack *xdr = (void *)*_bp;
struct afs_cb_interest *old, *cbi = call->cbi;
u64 cb_expiry;
write_seqlock(&vnode->cb_lock);
if (call->cb_break == afs_cb_break_sum(vnode, cbi)) {
cb_expiry = xdr_to_u64(xdr->expiration_time);
do_div(cb_expiry, 10 * 1000 * 1000);
vnode->cb_version = ntohl(xdr->version);
vnode->cb_type = ntohl(xdr->type);
vnode->cb_expires_at = cb_expiry + ktime_get_real_seconds();
old = vnode->cb_interest;
if (old != call->cbi) {
vnode->cb_interest = cbi;
cbi = old;
}
set_bit(AFS_VNODE_CB_PROMISED, &vnode->flags);
}
write_sequnlock(&vnode->cb_lock);
call->cbi = cbi;
*_bp += xdr_size(xdr);
}
static void xdr_decode_YFSCallBack_raw(const __be32 **_bp,
struct afs_callback *cb)
{
struct yfs_xdr_YFSCallBack *x = (void *)*_bp;
u64 cb_expiry;
cb_expiry = xdr_to_u64(x->expiration_time);
do_div(cb_expiry, 10 * 1000 * 1000);
cb->version = ntohl(x->version);
cb->type = ntohl(x->type);
cb->expires_at = cb_expiry + ktime_get_real_seconds();
*_bp += xdr_size(x);
}
/*
* Decode a YFSVolSync block
*/
static void xdr_decode_YFSVolSync(const __be32 **_bp,
struct afs_volsync *volsync)
{
struct yfs_xdr_YFSVolSync *x = (void *)*_bp;
u64 creation;
if (volsync) {
creation = xdr_to_u64(x->vol_creation_date);
do_div(creation, 10 * 1000 * 1000);
volsync->creation = creation;
}
*_bp += xdr_size(x);
}
/*
* Encode the requested attributes into a YFSStoreStatus block
*/
static __be32 *xdr_encode_YFS_StoreStatus(__be32 *bp, struct iattr *attr)
{
struct yfs_xdr_YFSStoreStatus *x = (void *)bp;
s64 mtime = 0, owner = 0, group = 0;
u32 mask = 0, mode = 0;
mask = 0;
if (attr->ia_valid & ATTR_MTIME) {
mask |= AFS_SET_MTIME;
mtime = linux_to_yfs_time(&attr->ia_mtime);
}
if (attr->ia_valid & ATTR_UID) {
mask |= AFS_SET_OWNER;
owner = from_kuid(&init_user_ns, attr->ia_uid);
}
if (attr->ia_valid & ATTR_GID) {
mask |= AFS_SET_GROUP;
group = from_kgid(&init_user_ns, attr->ia_gid);
}
if (attr->ia_valid & ATTR_MODE) {
mask |= AFS_SET_MODE;
mode = attr->ia_mode & S_IALLUGO;
}
x->mask = htonl(mask);
x->mode = htonl(mode);
x->mtime_client = u64_to_xdr(mtime);
x->owner = u64_to_xdr(owner);
x->group = u64_to_xdr(group);
return bp + xdr_size(x);
}
/*
* Decode a YFSFetchVolumeStatus block.
*/
static void xdr_decode_YFSFetchVolumeStatus(const __be32 **_bp,
struct afs_volume_status *vs)
{
const struct yfs_xdr_YFSFetchVolumeStatus *x = (const void *)*_bp;
u32 flags;
vs->vid = xdr_to_u64(x->vid);
vs->parent_id = xdr_to_u64(x->parent_id);
flags = ntohl(x->flags);
vs->online = flags & yfs_FVSOnline;
vs->in_service = flags & yfs_FVSInservice;
vs->blessed = flags & yfs_FVSBlessed;
vs->needs_salvage = flags & yfs_FVSNeedsSalvage;
vs->type = ntohl(x->type);
vs->min_quota = 0;
vs->max_quota = xdr_to_u64(x->max_quota);
vs->blocks_in_use = xdr_to_u64(x->blocks_in_use);
vs->part_blocks_avail = xdr_to_u64(x->part_blocks_avail);
vs->part_max_blocks = xdr_to_u64(x->part_max_blocks);
vs->vol_copy_date = xdr_to_u64(x->vol_copy_date);
vs->vol_backup_date = xdr_to_u64(x->vol_backup_date);
*_bp += sizeof(*x) / sizeof(__be32);
}
/*
* deliver reply data to an FS.FetchStatus
*/
static int yfs_deliver_fs_fetch_status_vnode(struct afs_call *call)
{
struct afs_vnode *vnode = call->reply[0];
const __be32 *bp;
int ret;
ret = afs_transfer_reply(call);
if (ret < 0)
return ret;
_enter("{%llx:%llu}", vnode->fid.vid, vnode->fid.vnode);
/* unmarshall the reply once we've received all of it */
bp = call->buffer;
ret = yfs_decode_status(call, &bp, &vnode->status, vnode,
&call->expected_version, NULL);
if (ret < 0)
return ret;
xdr_decode_YFSCallBack(call, vnode, &bp);
xdr_decode_YFSVolSync(&bp, call->reply[1]);
_leave(" = 0 [done]");
return 0;
}
/*
* YFS.FetchStatus operation type
*/
static const struct afs_call_type yfs_RXYFSFetchStatus_vnode = {
.name = "YFS.FetchStatus(vnode)",
.op = yfs_FS_FetchStatus,
.deliver = yfs_deliver_fs_fetch_status_vnode,
.destructor = afs_flat_call_destructor,
};
/*
* Fetch the status information for a file.
*/
int yfs_fs_fetch_file_status(struct afs_fs_cursor *fc, struct afs_volsync *volsync,
bool new_inode)
{
struct afs_vnode *vnode = fc->vnode;
struct afs_call *call;
struct afs_net *net = afs_v2net(vnode);
__be32 *bp;
_enter(",%x,{%llx:%llu},,",
key_serial(fc->key), vnode->fid.vid, vnode->fid.vnode);
call = afs_alloc_flat_call(net, &yfs_RXYFSFetchStatus_vnode,
sizeof(__be32) * 2 +
sizeof(struct yfs_xdr_YFSFid),
sizeof(struct yfs_xdr_YFSFetchStatus) +
sizeof(struct yfs_xdr_YFSCallBack) +
sizeof(struct yfs_xdr_YFSVolSync));
if (!call) {
fc->ac.error = -ENOMEM;
return -ENOMEM;
}
call->key = fc->key;
call->reply[0] = vnode;
call->reply[1] = volsync;
call->expected_version = new_inode ? 1 : vnode->status.data_version;
/* marshall the parameters */
bp = call->request;
bp = xdr_encode_u32(bp, YFSFETCHSTATUS);
bp = xdr_encode_u32(bp, 0); /* RPC flags */
bp = xdr_encode_YFSFid(bp, &vnode->fid);
yfs_check_req(call, bp);
call->cb_break = fc->cb_break;
afs_use_fs_server(call, fc->cbi);
trace_afs_make_fs_call(call, &vnode->fid);
return afs_make_call(&fc->ac, call, GFP_NOFS, false);
}
/*
* Deliver reply data to an YFS.FetchData64.
*/
static int yfs_deliver_fs_fetch_data64(struct afs_call *call)
{
struct afs_vnode *vnode = call->reply[0];
struct afs_read *req = call->reply[2];
const __be32 *bp;
unsigned int size;
int ret;
_enter("{%u,%zu/%llu}",
call->unmarshall, iov_iter_count(&call->iter), req->actual_len);
switch (call->unmarshall) {
case 0:
req->actual_len = 0;
req->index = 0;
req->offset = req->pos & (PAGE_SIZE - 1);
afs_extract_to_tmp64(call);
call->unmarshall++;
/* extract the returned data length */
case 1:
_debug("extract data length");
ret = afs_extract_data(call, true);
if (ret < 0)
return ret;
req->actual_len = be64_to_cpu(call->tmp64);
_debug("DATA length: %llu", req->actual_len);
req->remain = min(req->len, req->actual_len);
if (req->remain == 0)
goto no_more_data;
call->unmarshall++;
begin_page:
ASSERTCMP(req->index, <, req->nr_pages);
if (req->remain > PAGE_SIZE - req->offset)
size = PAGE_SIZE - req->offset;
else
size = req->remain;
call->bvec[0].bv_len = size;
call->bvec[0].bv_offset = req->offset;
call->bvec[0].bv_page = req->pages[req->index];
iov_iter_bvec(&call->iter, READ, call->bvec, 1, size);
ASSERTCMP(size, <=, PAGE_SIZE);
/* extract the returned data */
case 2:
_debug("extract data %zu/%llu",
iov_iter_count(&call->iter), req->remain);
ret = afs_extract_data(call, true);
if (ret < 0)
return ret;
req->remain -= call->bvec[0].bv_len;
req->offset += call->bvec[0].bv_len;
ASSERTCMP(req->offset, <=, PAGE_SIZE);
if (req->offset == PAGE_SIZE) {
req->offset = 0;
if (req->page_done)
req->page_done(call, req);
req->index++;
if (req->remain > 0)
goto begin_page;
}
ASSERTCMP(req->remain, ==, 0);
if (req->actual_len <= req->len)
goto no_more_data;
/* Discard any excess data the server gave us */
iov_iter_discard(&call->iter, READ, req->actual_len - req->len);
call->unmarshall = 3;
case 3:
_debug("extract discard %zu/%llu",
iov_iter_count(&call->iter), req->actual_len - req->len);
ret = afs_extract_data(call, true);
if (ret < 0)
return ret;
no_more_data:
call->unmarshall = 4;
afs_extract_to_buf(call,
sizeof(struct yfs_xdr_YFSFetchStatus) +
sizeof(struct yfs_xdr_YFSCallBack) +
sizeof(struct yfs_xdr_YFSVolSync));
/* extract the metadata */
case 4:
ret = afs_extract_data(call, false);
if (ret < 0)
return ret;
bp = call->buffer;
ret = yfs_decode_status(call, &bp, &vnode->status, vnode,
&vnode->status.data_version, req);
if (ret < 0)
return ret;
xdr_decode_YFSCallBack(call, vnode, &bp);
xdr_decode_YFSVolSync(&bp, call->reply[1]);
call->unmarshall++;
case 5:
break;
}
for (; req->index < req->nr_pages; req->index++) {
if (req->offset < PAGE_SIZE)
zero_user_segment(req->pages[req->index],
req->offset, PAGE_SIZE);
if (req->page_done)
req->page_done(call, req);
req->offset = 0;
}
_leave(" = 0 [done]");
return 0;
}
static void yfs_fetch_data_destructor(struct afs_call *call)
{
struct afs_read *req = call->reply[2];
afs_put_read(req);
afs_flat_call_destructor(call);
}
/*
* YFS.FetchData64 operation type
*/
static const struct afs_call_type yfs_RXYFSFetchData64 = {
.name = "YFS.FetchData64",
.op = yfs_FS_FetchData64,
.deliver = yfs_deliver_fs_fetch_data64,
.destructor = yfs_fetch_data_destructor,
};
/*
* Fetch data from a file.
*/
int yfs_fs_fetch_data(struct afs_fs_cursor *fc, struct afs_read *req)
{
struct afs_vnode *vnode = fc->vnode;
struct afs_call *call;
struct afs_net *net = afs_v2net(vnode);
__be32 *bp;
_enter(",%x,{%llx:%llu},%llx,%llx",
key_serial(fc->key), vnode->fid.vid, vnode->fid.vnode,
req->pos, req->len);
call = afs_alloc_flat_call(net, &yfs_RXYFSFetchData64,
sizeof(__be32) * 2 +
sizeof(struct yfs_xdr_YFSFid) +
sizeof(struct yfs_xdr_u64) * 2,
sizeof(struct yfs_xdr_YFSFetchStatus) +
sizeof(struct yfs_xdr_YFSCallBack) +
sizeof(struct yfs_xdr_YFSVolSync));
if (!call)
return -ENOMEM;
call->key = fc->key;
call->reply[0] = vnode;
call->reply[1] = NULL; /* volsync */
call->reply[2] = req;
call->expected_version = vnode->status.data_version;
call->want_reply_time = true;
/* marshall the parameters */
bp = call->request;
bp = xdr_encode_u32(bp, YFSFETCHDATA64);
bp = xdr_encode_u32(bp, 0); /* RPC flags */
bp = xdr_encode_YFSFid(bp, &vnode->fid);
bp = xdr_encode_u64(bp, req->pos);
bp = xdr_encode_u64(bp, req->len);
yfs_check_req(call, bp);
refcount_inc(&req->usage);
call->cb_break = fc->cb_break;
afs_use_fs_server(call, fc->cbi);
trace_afs_make_fs_call(call, &vnode->fid);
return afs_make_call(&fc->ac, call, GFP_NOFS, false);
}
/*
* Deliver reply data for YFS.CreateFile or YFS.MakeDir.
*/
static int yfs_deliver_fs_create_vnode(struct afs_call *call)
{
struct afs_vnode *vnode = call->reply[0];
const __be32 *bp;
int ret;
_enter("{%u}", call->unmarshall);
ret = afs_transfer_reply(call);
if (ret < 0)
return ret;
/* unmarshall the reply once we've received all of it */
bp = call->buffer;
xdr_decode_YFSFid(&bp, call->reply[1]);
ret = yfs_decode_status(call, &bp, call->reply[2], NULL, NULL, NULL);
if (ret < 0)
return ret;
ret = yfs_decode_status(call, &bp, &vnode->status, vnode,
&call->expected_version, NULL);
if (ret < 0)
return ret;
xdr_decode_YFSCallBack_raw(&bp, call->reply[3]);
xdr_decode_YFSVolSync(&bp, NULL);
_leave(" = 0 [done]");
return 0;
}
/*
* FS.CreateFile and FS.MakeDir operation type
*/
static const struct afs_call_type afs_RXFSCreateFile = {
.name = "YFS.CreateFile",
.op = yfs_FS_CreateFile,
.deliver = yfs_deliver_fs_create_vnode,
.destructor = afs_flat_call_destructor,
};
/*
* Create a file.
*/
int yfs_fs_create_file(struct afs_fs_cursor *fc,
const char *name,
umode_t mode,
u64 current_data_version,
struct afs_fid *newfid,
struct afs_file_status *newstatus,
struct afs_callback *newcb)
{
struct afs_vnode *vnode = fc->vnode;
struct afs_call *call;
struct afs_net *net = afs_v2net(vnode);
size_t namesz, reqsz, rplsz;
__be32 *bp;
_enter("");
namesz = strlen(name);
reqsz = (sizeof(__be32) +
sizeof(__be32) +
sizeof(struct yfs_xdr_YFSFid) +
xdr_strlen(namesz) +
sizeof(struct yfs_xdr_YFSStoreStatus) +
sizeof(__be32));
rplsz = (sizeof(struct yfs_xdr_YFSFid) +
sizeof(struct yfs_xdr_YFSFetchStatus) +
sizeof(struct yfs_xdr_YFSFetchStatus) +
sizeof(struct yfs_xdr_YFSCallBack) +
sizeof(struct yfs_xdr_YFSVolSync));
call = afs_alloc_flat_call(net, &afs_RXFSCreateFile, reqsz, rplsz);
if (!call)
return -ENOMEM;
call->key = fc->key;
call->reply[0] = vnode;
call->reply[1] = newfid;
call->reply[2] = newstatus;
call->reply[3] = newcb;
call->expected_version = current_data_version + 1;
/* marshall the parameters */
bp = call->request;
bp = xdr_encode_u32(bp, YFSCREATEFILE);
bp = xdr_encode_u32(bp, 0); /* RPC flags */
bp = xdr_encode_YFSFid(bp, &vnode->fid);
bp = xdr_encode_string(bp, name, namesz);
bp = xdr_encode_YFSStoreStatus_mode(bp, mode);
bp = xdr_encode_u32(bp, 0); /* ViceLockType */
yfs_check_req(call, bp);
afs_use_fs_server(call, fc->cbi);
trace_afs_make_fs_call(call, &vnode->fid);
return afs_make_call(&fc->ac, call, GFP_NOFS, false);
}
static const struct afs_call_type yfs_RXFSMakeDir = {
.name = "YFS.MakeDir",
.op = yfs_FS_MakeDir,
.deliver = yfs_deliver_fs_create_vnode,
.destructor = afs_flat_call_destructor,
};
/*
* Make a directory.
*/
int yfs_fs_make_dir(struct afs_fs_cursor *fc,
const char *name,
umode_t mode,
u64 current_data_version,
struct afs_fid *newfid,
struct afs_file_status *newstatus,
struct afs_callback *newcb)
{
struct afs_vnode *vnode = fc->vnode;
struct afs_call *call;
struct afs_net *net = afs_v2net(vnode);
size_t namesz, reqsz, rplsz;
__be32 *bp;
_enter("");
namesz = strlen(name);
reqsz = (sizeof(__be32) +
sizeof(struct yfs_xdr_RPCFlags) +
sizeof(struct yfs_xdr_YFSFid) +
xdr_strlen(namesz) +
sizeof(struct yfs_xdr_YFSStoreStatus));
rplsz = (sizeof(struct yfs_xdr_YFSFid) +
sizeof(struct yfs_xdr_YFSFetchStatus) +
sizeof(struct yfs_xdr_YFSFetchStatus) +
sizeof(struct yfs_xdr_YFSCallBack) +
sizeof(struct yfs_xdr_YFSVolSync));
call = afs_alloc_flat_call(net, &yfs_RXFSMakeDir, reqsz, rplsz);
if (!call)
return -ENOMEM;
call->key = fc->key;
call->reply[0] = vnode;
call->reply[1] = newfid;
call->reply[2] = newstatus;
call->reply[3] = newcb;
call->expected_version = current_data_version + 1;
/* marshall the parameters */
bp = call->request;
bp = xdr_encode_u32(bp, YFSMAKEDIR);
bp = xdr_encode_u32(bp, 0); /* RPC flags */
bp = xdr_encode_YFSFid(bp, &vnode->fid);
bp = xdr_encode_string(bp, name, namesz);
bp = xdr_encode_YFSStoreStatus_mode(bp, mode);
yfs_check_req(call, bp);
afs_use_fs_server(call, fc->cbi);
trace_afs_make_fs_call(call, &vnode->fid);
return afs_make_call(&fc->ac, call, GFP_NOFS, false);
}
/*
* Deliver reply data to a YFS.RemoveFile2 operation.
*/
static int yfs_deliver_fs_remove_file2(struct afs_call *call)
{
struct afs_vnode *dvnode = call->reply[0];
struct afs_vnode *vnode = call->reply[1];
struct afs_fid fid;
const __be32 *bp;
int ret;
_enter("{%u}", call->unmarshall);
ret = afs_transfer_reply(call);
if (ret < 0)
return ret;
/* unmarshall the reply once we've received all of it */
bp = call->buffer;
ret = yfs_decode_status(call, &bp, &dvnode->status, dvnode,
&call->expected_version, NULL);
if (ret < 0)
return ret;
xdr_decode_YFSFid(&bp, &fid);
ret = yfs_decode_status(call, &bp, &vnode->status, vnode, NULL, NULL);
if (ret < 0)
return ret;
/* Was deleted if vnode->status.abort_code == VNOVNODE. */
xdr_decode_YFSVolSync(&bp, NULL);
return 0;
}
/*
* YFS.RemoveFile2 operation type.
*/
static const struct afs_call_type yfs_RXYFSRemoveFile2 = {
.name = "YFS.RemoveFile2",
.op = yfs_FS_RemoveFile2,
.deliver = yfs_deliver_fs_remove_file2,
.destructor = afs_flat_call_destructor,
};
/*
* Remove a file and retrieve new file status.
*/
int yfs_fs_remove_file2(struct afs_fs_cursor *fc, struct afs_vnode *vnode,
const char *name, u64 current_data_version)
{
struct afs_vnode *dvnode = fc->vnode;
struct afs_call *call;
struct afs_net *net = afs_v2net(dvnode);
size_t namesz;
__be32 *bp;
_enter("");
namesz = strlen(name);
call = afs_alloc_flat_call(net, &yfs_RXYFSRemoveFile2,
sizeof(__be32) +
sizeof(struct yfs_xdr_RPCFlags) +
sizeof(struct yfs_xdr_YFSFid) +
xdr_strlen(namesz),
sizeof(struct yfs_xdr_YFSFetchStatus) +
sizeof(struct yfs_xdr_YFSFid) +
sizeof(struct yfs_xdr_YFSFetchStatus) +
sizeof(struct yfs_xdr_YFSVolSync));
if (!call)
return -ENOMEM;
call->key = fc->key;
call->reply[0] = dvnode;
call->reply[1] = vnode;
call->expected_version = current_data_version + 1;
/* marshall the parameters */
bp = call->request;
bp = xdr_encode_u32(bp, YFSREMOVEFILE2);
bp = xdr_encode_u32(bp, 0); /* RPC flags */
bp = xdr_encode_YFSFid(bp, &dvnode->fid);
bp = xdr_encode_string(bp, name, namesz);
yfs_check_req(call, bp);
afs_use_fs_server(call, fc->cbi);
trace_afs_make_fs_call(call, &dvnode->fid);
return afs_make_call(&fc->ac, call, GFP_NOFS, false);
}
/*
* Deliver reply data to a YFS.RemoveFile or YFS.RemoveDir operation.
*/
static int yfs_deliver_fs_remove(struct afs_call *call)
{
struct afs_vnode *dvnode = call->reply[0];
const __be32 *bp;
int ret;
_enter("{%u}", call->unmarshall);
ret = afs_transfer_reply(call);
if (ret < 0)
return ret;
/* unmarshall the reply once we've received all of it */
bp = call->buffer;
ret = yfs_decode_status(call, &bp, &dvnode->status, dvnode,
&call->expected_version, NULL);
if (ret < 0)
return ret;
xdr_decode_YFSVolSync(&bp, NULL);
return 0;
}
/*
* FS.RemoveDir and FS.RemoveFile operation types.
*/
static const struct afs_call_type yfs_RXYFSRemoveFile = {
.name = "YFS.RemoveFile",
.op = yfs_FS_RemoveFile,
.deliver = yfs_deliver_fs_remove,
.destructor = afs_flat_call_destructor,
};
static const struct afs_call_type yfs_RXYFSRemoveDir = {
.name = "YFS.RemoveDir",
.op = yfs_FS_RemoveDir,
.deliver = yfs_deliver_fs_remove,
.destructor = afs_flat_call_destructor,
};
/*
* remove a file or directory
*/
int yfs_fs_remove(struct afs_fs_cursor *fc, struct afs_vnode *vnode,
const char *name, bool isdir, u64 current_data_version)
{
struct afs_vnode *dvnode = fc->vnode;
struct afs_call *call;
struct afs_net *net = afs_v2net(dvnode);
size_t namesz;
__be32 *bp;
_enter("");
namesz = strlen(name);
call = afs_alloc_flat_call(
net, isdir ? &yfs_RXYFSRemoveDir : &yfs_RXYFSRemoveFile,
sizeof(__be32) +
sizeof(struct yfs_xdr_RPCFlags) +
sizeof(struct yfs_xdr_YFSFid) +
xdr_strlen(namesz),
sizeof(struct yfs_xdr_YFSFetchStatus) +
sizeof(struct yfs_xdr_YFSVolSync));
if (!call)
return -ENOMEM;
call->key = fc->key;
call->reply[0] = dvnode;
call->reply[1] = vnode;
call->expected_version = current_data_version + 1;
/* marshall the parameters */
bp = call->request;
bp = xdr_encode_u32(bp, isdir ? YFSREMOVEDIR : YFSREMOVEFILE);
bp = xdr_encode_u32(bp, 0); /* RPC flags */
bp = xdr_encode_YFSFid(bp, &dvnode->fid);
bp = xdr_encode_string(bp, name, namesz);
yfs_check_req(call, bp);
afs_use_fs_server(call, fc->cbi);
trace_afs_make_fs_call(call, &dvnode->fid);
return afs_make_call(&fc->ac, call, GFP_NOFS, false);
}
/*
* Deliver reply data to a YFS.Link operation.
*/
static int yfs_deliver_fs_link(struct afs_call *call)
{
struct afs_vnode *dvnode = call->reply[0], *vnode = call->reply[1];
const __be32 *bp;
int ret;
_enter("{%u}", call->unmarshall);
ret = afs_transfer_reply(call);
if (ret < 0)
return ret;
/* unmarshall the reply once we've received all of it */
bp = call->buffer;
ret = yfs_decode_status(call, &bp, &vnode->status, vnode, NULL, NULL);
if (ret < 0)
return ret;
ret = yfs_decode_status(call, &bp, &dvnode->status, dvnode,
&call->expected_version, NULL);
if (ret < 0)
return ret;
xdr_decode_YFSVolSync(&bp, NULL);
_leave(" = 0 [done]");
return 0;
}
/*
* YFS.Link operation type.
*/
static const struct afs_call_type yfs_RXYFSLink = {
.name = "YFS.Link",
.op = yfs_FS_Link,
.deliver = yfs_deliver_fs_link,
.destructor = afs_flat_call_destructor,
};
/*
* Make a hard link.
*/
int yfs_fs_link(struct afs_fs_cursor *fc, struct afs_vnode *vnode,
const char *name, u64 current_data_version)
{
struct afs_vnode *dvnode = fc->vnode;
struct afs_call *call;
struct afs_net *net = afs_v2net(vnode);
size_t namesz;
__be32 *bp;
_enter("");
namesz = strlen(name);
call = afs_alloc_flat_call(net, &yfs_RXYFSLink,
sizeof(__be32) +
sizeof(struct yfs_xdr_RPCFlags) +
sizeof(struct yfs_xdr_YFSFid) +
xdr_strlen(namesz) +
sizeof(struct yfs_xdr_YFSFid),
sizeof(struct yfs_xdr_YFSFetchStatus) +
sizeof(struct yfs_xdr_YFSFetchStatus) +
sizeof(struct yfs_xdr_YFSVolSync));
if (!call)
return -ENOMEM;
call->key = fc->key;
call->reply[0] = dvnode;
call->reply[1] = vnode;
call->expected_version = current_data_version + 1;
/* marshall the parameters */
bp = call->request;
bp = xdr_encode_u32(bp, YFSLINK);
bp = xdr_encode_u32(bp, 0); /* RPC flags */
bp = xdr_encode_YFSFid(bp, &dvnode->fid);
bp = xdr_encode_string(bp, name, namesz);
bp = xdr_encode_YFSFid(bp, &vnode->fid);
yfs_check_req(call, bp);
afs_use_fs_server(call, fc->cbi);
trace_afs_make_fs_call(call, &vnode->fid);
return afs_make_call(&fc->ac, call, GFP_NOFS, false);
}
/*
* Deliver reply data to a YFS.Symlink operation.
*/
static int yfs_deliver_fs_symlink(struct afs_call *call)
{
struct afs_vnode *vnode = call->reply[0];
const __be32 *bp;
int ret;
_enter("{%u}", call->unmarshall);
ret = afs_transfer_reply(call);
if (ret < 0)
return ret;
/* unmarshall the reply once we've received all of it */
bp = call->buffer;
xdr_decode_YFSFid(&bp, call->reply[1]);
ret = yfs_decode_status(call, &bp, call->reply[2], NULL, NULL, NULL);
if (ret < 0)
return ret;
ret = yfs_decode_status(call, &bp, &vnode->status, vnode,
&call->expected_version, NULL);
if (ret < 0)
return ret;
xdr_decode_YFSVolSync(&bp, NULL);
_leave(" = 0 [done]");
return 0;
}
/*
* YFS.Symlink operation type
*/
static const struct afs_call_type yfs_RXYFSSymlink = {
.name = "YFS.Symlink",
.op = yfs_FS_Symlink,
.deliver = yfs_deliver_fs_symlink,
.destructor = afs_flat_call_destructor,
};
/*
* Create a symbolic link.
*/
int yfs_fs_symlink(struct afs_fs_cursor *fc,
const char *name,
const char *contents,
u64 current_data_version,
struct afs_fid *newfid,
struct afs_file_status *newstatus)
{
struct afs_vnode *dvnode = fc->vnode;
struct afs_call *call;
struct afs_net *net = afs_v2net(dvnode);
size_t namesz, contents_sz;
__be32 *bp;
_enter("");
namesz = strlen(name);
contents_sz = strlen(contents);
call = afs_alloc_flat_call(net, &yfs_RXYFSSymlink,
sizeof(__be32) +
sizeof(struct yfs_xdr_RPCFlags) +
sizeof(struct yfs_xdr_YFSFid) +
xdr_strlen(namesz) +
xdr_strlen(contents_sz) +
sizeof(struct yfs_xdr_YFSStoreStatus),
sizeof(struct yfs_xdr_YFSFid) +
sizeof(struct yfs_xdr_YFSFetchStatus) +
sizeof(struct yfs_xdr_YFSFetchStatus) +
sizeof(struct yfs_xdr_YFSVolSync));
if (!call)
return -ENOMEM;
call->key = fc->key;
call->reply[0] = dvnode;
call->reply[1] = newfid;
call->reply[2] = newstatus;
call->expected_version = current_data_version + 1;
/* marshall the parameters */
bp = call->request;
bp = xdr_encode_u32(bp, YFSSYMLINK);
bp = xdr_encode_u32(bp, 0); /* RPC flags */
bp = xdr_encode_YFSFid(bp, &dvnode->fid);
bp = xdr_encode_string(bp, name, namesz);
bp = xdr_encode_string(bp, contents, contents_sz);
bp = xdr_encode_YFSStoreStatus_mode(bp, S_IRWXUGO);
yfs_check_req(call, bp);
afs_use_fs_server(call, fc->cbi);
trace_afs_make_fs_call(call, &dvnode->fid);
return afs_make_call(&fc->ac, call, GFP_NOFS, false);
}
/*
* Deliver reply data to a YFS.Rename operation.
*/
static int yfs_deliver_fs_rename(struct afs_call *call)
{
struct afs_vnode *orig_dvnode = call->reply[0];
struct afs_vnode *new_dvnode = call->reply[1];
const __be32 *bp;
int ret;
_enter("{%u}", call->unmarshall);
ret = afs_transfer_reply(call);
if (ret < 0)
return ret;
/* unmarshall the reply once we've received all of it */
bp = call->buffer;
ret = yfs_decode_status(call, &bp, &orig_dvnode->status, orig_dvnode,
&call->expected_version, NULL);
if (ret < 0)
return ret;
if (new_dvnode != orig_dvnode) {
ret = yfs_decode_status(call, &bp, &new_dvnode->status, new_dvnode,
&call->expected_version_2, NULL);
if (ret < 0)
return ret;
}
xdr_decode_YFSVolSync(&bp, NULL);
_leave(" = 0 [done]");
return 0;
}
/*
* YFS.Rename operation type
*/
static const struct afs_call_type yfs_RXYFSRename = {
.name = "FS.Rename",
.op = yfs_FS_Rename,
.deliver = yfs_deliver_fs_rename,
.destructor = afs_flat_call_destructor,
};
/*
* Rename a file or directory.
*/
int yfs_fs_rename(struct afs_fs_cursor *fc,
const char *orig_name,
struct afs_vnode *new_dvnode,
const char *new_name,
u64 current_orig_data_version,
u64 current_new_data_version)
{
struct afs_vnode *orig_dvnode = fc->vnode;
struct afs_call *call;
struct afs_net *net = afs_v2net(orig_dvnode);
size_t o_namesz, n_namesz;
__be32 *bp;
_enter("");
o_namesz = strlen(orig_name);
n_namesz = strlen(new_name);
call = afs_alloc_flat_call(net, &yfs_RXYFSRename,
sizeof(__be32) +
sizeof(struct yfs_xdr_RPCFlags) +
sizeof(struct yfs_xdr_YFSFid) +
xdr_strlen(o_namesz) +
sizeof(struct yfs_xdr_YFSFid) +
xdr_strlen(n_namesz),
sizeof(struct yfs_xdr_YFSFetchStatus) +
sizeof(struct yfs_xdr_YFSFetchStatus) +
sizeof(struct yfs_xdr_YFSVolSync));
if (!call)
return -ENOMEM;
call->key = fc->key;
call->reply[0] = orig_dvnode;
call->reply[1] = new_dvnode;
call->expected_version = current_orig_data_version + 1;
call->expected_version_2 = current_new_data_version + 1;
/* marshall the parameters */
bp = call->request;
bp = xdr_encode_u32(bp, YFSRENAME);
bp = xdr_encode_u32(bp, 0); /* RPC flags */
bp = xdr_encode_YFSFid(bp, &orig_dvnode->fid);
bp = xdr_encode_string(bp, orig_name, o_namesz);
bp = xdr_encode_YFSFid(bp, &new_dvnode->fid);
bp = xdr_encode_string(bp, new_name, n_namesz);
yfs_check_req(call, bp);
afs_use_fs_server(call, fc->cbi);
trace_afs_make_fs_call(call, &orig_dvnode->fid);
return afs_make_call(&fc->ac, call, GFP_NOFS, false);
}
/*
* Deliver reply data to a YFS.StoreData64 operation.
*/
static int yfs_deliver_fs_store_data(struct afs_call *call)
{
struct afs_vnode *vnode = call->reply[0];
const __be32 *bp;
int ret;
_enter("");
ret = afs_transfer_reply(call);
if (ret < 0)
return ret;
/* unmarshall the reply once we've received all of it */
bp = call->buffer;
ret = yfs_decode_status(call, &bp, &vnode->status, vnode,
&call->expected_version, NULL);
if (ret < 0)
return ret;
xdr_decode_YFSVolSync(&bp, NULL);
afs_pages_written_back(vnode, call);
_leave(" = 0 [done]");
return 0;
}
/*
* YFS.StoreData64 operation type.
*/
static const struct afs_call_type yfs_RXYFSStoreData64 = {
.name = "YFS.StoreData64",
.op = yfs_FS_StoreData64,
.deliver = yfs_deliver_fs_store_data,
.destructor = afs_flat_call_destructor,
};
/*
* Store a set of pages to a large file.
*/
int yfs_fs_store_data(struct afs_fs_cursor *fc, struct address_space *mapping,
pgoff_t first, pgoff_t last,
unsigned offset, unsigned to)
{
struct afs_vnode *vnode = fc->vnode;
struct afs_call *call;
struct afs_net *net = afs_v2net(vnode);
loff_t size, pos, i_size;
__be32 *bp;
_enter(",%x,{%llx:%llu},,",
key_serial(fc->key), vnode->fid.vid, vnode->fid.vnode);
size = (loff_t)to - (loff_t)offset;
if (first != last)
size += (loff_t)(last - first) << PAGE_SHIFT;
pos = (loff_t)first << PAGE_SHIFT;
pos += offset;
i_size = i_size_read(&vnode->vfs_inode);
if (pos + size > i_size)
i_size = size + pos;
_debug("size %llx, at %llx, i_size %llx",
(unsigned long long)size, (unsigned long long)pos,
(unsigned long long)i_size);
call = afs_alloc_flat_call(net, &yfs_RXYFSStoreData64,
sizeof(__be32) +
sizeof(__be32) +
sizeof(struct yfs_xdr_YFSFid) +
sizeof(struct yfs_xdr_YFSStoreStatus) +
sizeof(struct yfs_xdr_u64) * 3,
sizeof(struct yfs_xdr_YFSFetchStatus) +
sizeof(struct yfs_xdr_YFSVolSync));
if (!call)
return -ENOMEM;
call->key = fc->key;
call->mapping = mapping;
call->reply[0] = vnode;
call->first = first;
call->last = last;
call->first_offset = offset;
call->last_to = to;
call->send_pages = true;
call->expected_version = vnode->status.data_version + 1;
/* marshall the parameters */
bp = call->request;
bp = xdr_encode_u32(bp, YFSSTOREDATA64);
bp = xdr_encode_u32(bp, 0); /* RPC flags */
bp = xdr_encode_YFSFid(bp, &vnode->fid);
bp = xdr_encode_YFSStoreStatus_mtime(bp, &vnode->vfs_inode.i_mtime);
bp = xdr_encode_u64(bp, pos);
bp = xdr_encode_u64(bp, size);
bp = xdr_encode_u64(bp, i_size);
yfs_check_req(call, bp);
afs_use_fs_server(call, fc->cbi);
trace_afs_make_fs_call(call, &vnode->fid);
return afs_make_call(&fc->ac, call, GFP_NOFS, false);
}
/*
* deliver reply data to an FS.StoreStatus
*/
static int yfs_deliver_fs_store_status(struct afs_call *call)
{
struct afs_vnode *vnode = call->reply[0];
const __be32 *bp;
int ret;
_enter("");
ret = afs_transfer_reply(call);
if (ret < 0)
return ret;
/* unmarshall the reply once we've received all of it */
bp = call->buffer;
ret = yfs_decode_status(call, &bp, &vnode->status, vnode,
&call->expected_version, NULL);
if (ret < 0)
return ret;
xdr_decode_YFSVolSync(&bp, NULL);
_leave(" = 0 [done]");
return 0;
}
/*
* YFS.StoreStatus operation type
*/
static const struct afs_call_type yfs_RXYFSStoreStatus = {
.name = "YFS.StoreStatus",
.op = yfs_FS_StoreStatus,
.deliver = yfs_deliver_fs_store_status,
.destructor = afs_flat_call_destructor,
};
static const struct afs_call_type yfs_RXYFSStoreData64_as_Status = {
.name = "YFS.StoreData64",
.op = yfs_FS_StoreData64,
.deliver = yfs_deliver_fs_store_status,
.destructor = afs_flat_call_destructor,
};
/*
* Set the attributes on a file, using YFS.StoreData64 rather than
* YFS.StoreStatus so as to alter the file size also.
*/
static int yfs_fs_setattr_size(struct afs_fs_cursor *fc, struct iattr *attr)
{
struct afs_vnode *vnode = fc->vnode;
struct afs_call *call;
struct afs_net *net = afs_v2net(vnode);
__be32 *bp;
_enter(",%x,{%llx:%llu},,",
key_serial(fc->key), vnode->fid.vid, vnode->fid.vnode);
call = afs_alloc_flat_call(net, &yfs_RXYFSStoreData64_as_Status,
sizeof(__be32) * 2 +
sizeof(struct yfs_xdr_YFSFid) +
sizeof(struct yfs_xdr_YFSStoreStatus) +
sizeof(struct yfs_xdr_u64) * 3,
sizeof(struct yfs_xdr_YFSFetchStatus) +
sizeof(struct yfs_xdr_YFSVolSync));
if (!call)
return -ENOMEM;
call->key = fc->key;
call->reply[0] = vnode;
call->expected_version = vnode->status.data_version + 1;
/* marshall the parameters */
bp = call->request;
bp = xdr_encode_u32(bp, YFSSTOREDATA64);
bp = xdr_encode_u32(bp, 0); /* RPC flags */
bp = xdr_encode_YFSFid(bp, &vnode->fid);
bp = xdr_encode_YFS_StoreStatus(bp, attr);
bp = xdr_encode_u64(bp, 0); /* position of start of write */
bp = xdr_encode_u64(bp, 0); /* size of write */
bp = xdr_encode_u64(bp, attr->ia_size); /* new file length */
yfs_check_req(call, bp);
afs_use_fs_server(call, fc->cbi);
trace_afs_make_fs_call(call, &vnode->fid);
return afs_make_call(&fc->ac, call, GFP_NOFS, false);
}
/*
* Set the attributes on a file, using YFS.StoreData64 if there's a change in
* file size, and YFS.StoreStatus otherwise.
*/
int yfs_fs_setattr(struct afs_fs_cursor *fc, struct iattr *attr)
{
struct afs_vnode *vnode = fc->vnode;
struct afs_call *call;
struct afs_net *net = afs_v2net(vnode);
__be32 *bp;
if (attr->ia_valid & ATTR_SIZE)
return yfs_fs_setattr_size(fc, attr);
_enter(",%x,{%llx:%llu},,",
key_serial(fc->key), vnode->fid.vid, vnode->fid.vnode);
call = afs_alloc_flat_call(net, &yfs_RXYFSStoreStatus,
sizeof(__be32) * 2 +
sizeof(struct yfs_xdr_YFSFid) +
sizeof(struct yfs_xdr_YFSStoreStatus),
sizeof(struct yfs_xdr_YFSFetchStatus) +
sizeof(struct yfs_xdr_YFSVolSync));
if (!call)
return -ENOMEM;
call->key = fc->key;
call->reply[0] = vnode;
call->expected_version = vnode->status.data_version;
/* marshall the parameters */
bp = call->request;
bp = xdr_encode_u32(bp, YFSSTORESTATUS);
bp = xdr_encode_u32(bp, 0); /* RPC flags */
bp = xdr_encode_YFSFid(bp, &vnode->fid);
bp = xdr_encode_YFS_StoreStatus(bp, attr);
yfs_check_req(call, bp);
afs_use_fs_server(call, fc->cbi);
trace_afs_make_fs_call(call, &vnode->fid);
return afs_make_call(&fc->ac, call, GFP_NOFS, false);
}
/*
* Deliver reply data to a YFS.GetVolumeStatus operation.
*/
static int yfs_deliver_fs_get_volume_status(struct afs_call *call)
{
const __be32 *bp;
char *p;
u32 size;
int ret;
_enter("{%u}", call->unmarshall);
switch (call->unmarshall) {
case 0:
call->unmarshall++;
afs_extract_to_buf(call, sizeof(struct yfs_xdr_YFSFetchVolumeStatus));
/* extract the returned status record */
case 1:
_debug("extract status");
ret = afs_extract_data(call, true);
if (ret < 0)
return ret;
bp = call->buffer;
xdr_decode_YFSFetchVolumeStatus(&bp, call->reply[1]);
call->unmarshall++;
afs_extract_to_tmp(call);
/* extract the volume name length */
case 2:
ret = afs_extract_data(call, true);
if (ret < 0)
return ret;
call->count = ntohl(call->tmp);
_debug("volname length: %u", call->count);
if (call->count >= AFSNAMEMAX)
return afs_protocol_error(call, -EBADMSG,
afs_eproto_volname_len);
size = (call->count + 3) & ~3; /* It's padded */
afs_extract_begin(call, call->reply[2], size);
call->unmarshall++;
/* extract the volume name */
case 3:
_debug("extract volname");
ret = afs_extract_data(call, true);
if (ret < 0)
return ret;
p = call->reply[2];
p[call->count] = 0;
_debug("volname '%s'", p);
afs_extract_to_tmp(call);
call->unmarshall++;
/* extract the offline message length */
case 4:
ret = afs_extract_data(call, true);
if (ret < 0)
return ret;
call->count = ntohl(call->tmp);
_debug("offline msg length: %u", call->count);
if (call->count >= AFSNAMEMAX)
return afs_protocol_error(call, -EBADMSG,
afs_eproto_offline_msg_len);
size = (call->count + 3) & ~3; /* It's padded */
afs_extract_begin(call, call->reply[2], size);
call->unmarshall++;
/* extract the offline message */
case 5:
_debug("extract offline");
ret = afs_extract_data(call, true);
if (ret < 0)
return ret;
p = call->reply[2];
p[call->count] = 0;
_debug("offline '%s'", p);
afs_extract_to_tmp(call);
call->unmarshall++;
/* extract the message of the day length */
case 6:
ret = afs_extract_data(call, true);
if (ret < 0)
return ret;
call->count = ntohl(call->tmp);
_debug("motd length: %u", call->count);
if (call->count >= AFSNAMEMAX)
return afs_protocol_error(call, -EBADMSG,
afs_eproto_motd_len);
size = (call->count + 3) & ~3; /* It's padded */
afs_extract_begin(call, call->reply[2], size);
call->unmarshall++;
/* extract the message of the day */
case 7:
_debug("extract motd");
ret = afs_extract_data(call, false);
if (ret < 0)
return ret;
p = call->reply[2];
p[call->count] = 0;
_debug("motd '%s'", p);
call->unmarshall++;
case 8:
break;
}
_leave(" = 0 [done]");
return 0;
}
/*
* Destroy a YFS.GetVolumeStatus call.
*/
static void yfs_get_volume_status_call_destructor(struct afs_call *call)
{
kfree(call->reply[2]);
call->reply[2] = NULL;
afs_flat_call_destructor(call);
}
/*
* YFS.GetVolumeStatus operation type
*/
static const struct afs_call_type yfs_RXYFSGetVolumeStatus = {
.name = "YFS.GetVolumeStatus",
.op = yfs_FS_GetVolumeStatus,
.deliver = yfs_deliver_fs_get_volume_status,
.destructor = yfs_get_volume_status_call_destructor,
};
/*
* fetch the status of a volume
*/
int yfs_fs_get_volume_status(struct afs_fs_cursor *fc,
struct afs_volume_status *vs)
{
struct afs_vnode *vnode = fc->vnode;
struct afs_call *call;
struct afs_net *net = afs_v2net(vnode);
__be32 *bp;
void *tmpbuf;
_enter("");
tmpbuf = kmalloc(AFSOPAQUEMAX, GFP_KERNEL);
if (!tmpbuf)
return -ENOMEM;
call = afs_alloc_flat_call(net, &yfs_RXYFSGetVolumeStatus,
sizeof(__be32) * 2 +
sizeof(struct yfs_xdr_u64),
sizeof(struct yfs_xdr_YFSFetchVolumeStatus) +
sizeof(__be32));
if (!call) {
kfree(tmpbuf);
return -ENOMEM;
}
call->key = fc->key;
call->reply[0] = vnode;
call->reply[1] = vs;
call->reply[2] = tmpbuf;
/* marshall the parameters */
bp = call->request;
bp = xdr_encode_u32(bp, YFSGETVOLUMESTATUS);
bp = xdr_encode_u32(bp, 0); /* RPC flags */
bp = xdr_encode_u64(bp, vnode->fid.vid);
yfs_check_req(call, bp);
afs_use_fs_server(call, fc->cbi);
trace_afs_make_fs_call(call, &vnode->fid);
return afs_make_call(&fc->ac, call, GFP_NOFS, false);
}
/*
* Deliver reply data to an YFS.SetLock, YFS.ExtendLock or YFS.ReleaseLock
*/
static int yfs_deliver_fs_xxxx_lock(struct afs_call *call)
{
struct afs_vnode *vnode = call->reply[0];
const __be32 *bp;
int ret;
_enter("{%u}", call->unmarshall);
ret = afs_transfer_reply(call);
if (ret < 0)
return ret;
/* unmarshall the reply once we've received all of it */
bp = call->buffer;
ret = yfs_decode_status(call, &bp, &vnode->status, vnode,
&call->expected_version, NULL);
if (ret < 0)
return ret;
xdr_decode_YFSVolSync(&bp, NULL);
_leave(" = 0 [done]");
return 0;
}
/*
* YFS.SetLock operation type
*/
static const struct afs_call_type yfs_RXYFSSetLock = {
.name = "YFS.SetLock",
.op = yfs_FS_SetLock,
.deliver = yfs_deliver_fs_xxxx_lock,
.destructor = afs_flat_call_destructor,
};
/*
* YFS.ExtendLock operation type
*/
static const struct afs_call_type yfs_RXYFSExtendLock = {
.name = "YFS.ExtendLock",
.op = yfs_FS_ExtendLock,
.deliver = yfs_deliver_fs_xxxx_lock,
.destructor = afs_flat_call_destructor,
};
/*
* YFS.ReleaseLock operation type
*/
static const struct afs_call_type yfs_RXYFSReleaseLock = {
.name = "YFS.ReleaseLock",
.op = yfs_FS_ReleaseLock,
.deliver = yfs_deliver_fs_xxxx_lock,
.destructor = afs_flat_call_destructor,
};
/*
* Set a lock on a file
*/
int yfs_fs_set_lock(struct afs_fs_cursor *fc, afs_lock_type_t type)
{
struct afs_vnode *vnode = fc->vnode;
struct afs_call *call;
struct afs_net *net = afs_v2net(vnode);
__be32 *bp;
_enter("");
call = afs_alloc_flat_call(net, &yfs_RXYFSSetLock,
sizeof(__be32) * 2 +
sizeof(struct yfs_xdr_YFSFid) +
sizeof(__be32),
sizeof(struct yfs_xdr_YFSFetchStatus) +
sizeof(struct yfs_xdr_YFSVolSync));
if (!call)
return -ENOMEM;
call->key = fc->key;
call->reply[0] = vnode;
/* marshall the parameters */
bp = call->request;
bp = xdr_encode_u32(bp, YFSSETLOCK);
bp = xdr_encode_u32(bp, 0); /* RPC flags */
bp = xdr_encode_YFSFid(bp, &vnode->fid);
bp = xdr_encode_u32(bp, type);
yfs_check_req(call, bp);
afs_use_fs_server(call, fc->cbi);
trace_afs_make_fs_call(call, &vnode->fid);
return afs_make_call(&fc->ac, call, GFP_NOFS, false);
}
/*
* extend a lock on a file
*/
int yfs_fs_extend_lock(struct afs_fs_cursor *fc)
{
struct afs_vnode *vnode = fc->vnode;
struct afs_call *call;
struct afs_net *net = afs_v2net(vnode);
__be32 *bp;
_enter("");
call = afs_alloc_flat_call(net, &yfs_RXYFSExtendLock,
sizeof(__be32) * 2 +
sizeof(struct yfs_xdr_YFSFid),
sizeof(struct yfs_xdr_YFSFetchStatus) +
sizeof(struct yfs_xdr_YFSVolSync));
if (!call)
return -ENOMEM;
call->key = fc->key;
call->reply[0] = vnode;
/* marshall the parameters */
bp = call->request;
bp = xdr_encode_u32(bp, YFSEXTENDLOCK);
bp = xdr_encode_u32(bp, 0); /* RPC flags */
bp = xdr_encode_YFSFid(bp, &vnode->fid);
yfs_check_req(call, bp);
afs_use_fs_server(call, fc->cbi);
trace_afs_make_fs_call(call, &vnode->fid);
return afs_make_call(&fc->ac, call, GFP_NOFS, false);
}
/*
* release a lock on a file
*/
int yfs_fs_release_lock(struct afs_fs_cursor *fc)
{
struct afs_vnode *vnode = fc->vnode;
struct afs_call *call;
struct afs_net *net = afs_v2net(vnode);
__be32 *bp;
_enter("");
call = afs_alloc_flat_call(net, &yfs_RXYFSReleaseLock,
sizeof(__be32) * 2 +
sizeof(struct yfs_xdr_YFSFid),
sizeof(struct yfs_xdr_YFSFetchStatus) +
sizeof(struct yfs_xdr_YFSVolSync));
if (!call)
return -ENOMEM;
call->key = fc->key;
call->reply[0] = vnode;
/* marshall the parameters */
bp = call->request;
bp = xdr_encode_u32(bp, YFSRELEASELOCK);
bp = xdr_encode_u32(bp, 0); /* RPC flags */
bp = xdr_encode_YFSFid(bp, &vnode->fid);
yfs_check_req(call, bp);
afs_use_fs_server(call, fc->cbi);
trace_afs_make_fs_call(call, &vnode->fid);
return afs_make_call(&fc->ac, call, GFP_NOFS, false);
}
/*
* Deliver reply data to an FS.FetchStatus with no vnode.
*/
static int yfs_deliver_fs_fetch_status(struct afs_call *call)
{
struct afs_file_status *status = call->reply[1];
struct afs_callback *callback = call->reply[2];
struct afs_volsync *volsync = call->reply[3];
struct afs_vnode *vnode = call->reply[0];
const __be32 *bp;
int ret;
ret = afs_transfer_reply(call);
if (ret < 0)
return ret;
_enter("{%llx:%llu}", vnode->fid.vid, vnode->fid.vnode);
/* unmarshall the reply once we've received all of it */
bp = call->buffer;
ret = yfs_decode_status(call, &bp, status, vnode,
&call->expected_version, NULL);
if (ret < 0)
return ret;
xdr_decode_YFSCallBack_raw(&bp, callback);
xdr_decode_YFSVolSync(&bp, volsync);
_leave(" = 0 [done]");
return 0;
}
/*
* YFS.FetchStatus operation type
*/
static const struct afs_call_type yfs_RXYFSFetchStatus = {
.name = "YFS.FetchStatus",
.op = yfs_FS_FetchStatus,
.deliver = yfs_deliver_fs_fetch_status,
.destructor = afs_flat_call_destructor,
};
/*
* Fetch the status information for a fid without needing a vnode handle.
*/
int yfs_fs_fetch_status(struct afs_fs_cursor *fc,
struct afs_net *net,
struct afs_fid *fid,
struct afs_file_status *status,
struct afs_callback *callback,
struct afs_volsync *volsync)
{
struct afs_call *call;
__be32 *bp;
_enter(",%x,{%llx:%llu},,",
key_serial(fc->key), fid->vid, fid->vnode);
call = afs_alloc_flat_call(net, &yfs_RXYFSFetchStatus,
sizeof(__be32) * 2 +
sizeof(struct yfs_xdr_YFSFid),
sizeof(struct yfs_xdr_YFSFetchStatus) +
sizeof(struct yfs_xdr_YFSCallBack) +
sizeof(struct yfs_xdr_YFSVolSync));
if (!call) {
fc->ac.error = -ENOMEM;
return -ENOMEM;
}
call->key = fc->key;
call->reply[0] = NULL; /* vnode for fid[0] */
call->reply[1] = status;
call->reply[2] = callback;
call->reply[3] = volsync;
call->expected_version = 1; /* vnode->status.data_version */
/* marshall the parameters */
bp = call->request;
bp = xdr_encode_u32(bp, YFSFETCHSTATUS);
bp = xdr_encode_u32(bp, 0); /* RPC flags */
bp = xdr_encode_YFSFid(bp, fid);
yfs_check_req(call, bp);
call->cb_break = fc->cb_break;
afs_use_fs_server(call, fc->cbi);
trace_afs_make_fs_call(call, fid);
return afs_make_call(&fc->ac, call, GFP_NOFS, false);
}
/*
* Deliver reply data to an YFS.InlineBulkStatus call
*/
static int yfs_deliver_fs_inline_bulk_status(struct afs_call *call)
{
struct afs_file_status *statuses;
struct afs_callback *callbacks;
struct afs_vnode *vnode = call->reply[0];
const __be32 *bp;
u32 tmp;
int ret;
_enter("{%u}", call->unmarshall);
switch (call->unmarshall) {
case 0:
afs_extract_to_tmp(call);
call->unmarshall++;
/* Extract the file status count and array in two steps */
case 1:
_debug("extract status count");
ret = afs_extract_data(call, true);
if (ret < 0)
return ret;
tmp = ntohl(call->tmp);
_debug("status count: %u/%u", tmp, call->count2);
if (tmp != call->count2)
return afs_protocol_error(call, -EBADMSG,
afs_eproto_ibulkst_count);
call->count = 0;
call->unmarshall++;
more_counts:
afs_extract_to_buf(call, sizeof(struct yfs_xdr_YFSFetchStatus));
case 2:
_debug("extract status array %u", call->count);
ret = afs_extract_data(call, true);
if (ret < 0)
return ret;
bp = call->buffer;
statuses = call->reply[1];
ret = yfs_decode_status(call, &bp, &statuses[call->count],
call->count == 0 ? vnode : NULL,
NULL, NULL);
if (ret < 0)
return ret;
call->count++;
if (call->count < call->count2)
goto more_counts;
call->count = 0;
call->unmarshall++;
afs_extract_to_tmp(call);
/* Extract the callback count and array in two steps */
case 3:
_debug("extract CB count");
ret = afs_extract_data(call, true);
if (ret < 0)
return ret;
tmp = ntohl(call->tmp);
_debug("CB count: %u", tmp);
if (tmp != call->count2)
return afs_protocol_error(call, -EBADMSG,
afs_eproto_ibulkst_cb_count);
call->count = 0;
call->unmarshall++;
more_cbs:
afs_extract_to_buf(call, sizeof(struct yfs_xdr_YFSCallBack));
case 4:
_debug("extract CB array");
ret = afs_extract_data(call, true);
if (ret < 0)
return ret;
_debug("unmarshall CB array");
bp = call->buffer;
callbacks = call->reply[2];
xdr_decode_YFSCallBack_raw(&bp, &callbacks[call->count]);
statuses = call->reply[1];
if (call->count == 0 && vnode && statuses[0].abort_code == 0) {
bp = call->buffer;
xdr_decode_YFSCallBack(call, vnode, &bp);
}
call->count++;
if (call->count < call->count2)
goto more_cbs;
afs_extract_to_buf(call, sizeof(struct yfs_xdr_YFSVolSync));
call->unmarshall++;
case 5:
ret = afs_extract_data(call, false);
if (ret < 0)
return ret;
bp = call->buffer;
xdr_decode_YFSVolSync(&bp, call->reply[3]);
call->unmarshall++;
case 6:
break;
}
_leave(" = 0 [done]");
return 0;
}
/*
* FS.InlineBulkStatus operation type
*/
static const struct afs_call_type yfs_RXYFSInlineBulkStatus = {
.name = "YFS.InlineBulkStatus",
.op = yfs_FS_InlineBulkStatus,
.deliver = yfs_deliver_fs_inline_bulk_status,
.destructor = afs_flat_call_destructor,
};
/*
* Fetch the status information for up to 1024 files
*/
int yfs_fs_inline_bulk_status(struct afs_fs_cursor *fc,
struct afs_net *net,
struct afs_fid *fids,
struct afs_file_status *statuses,
struct afs_callback *callbacks,
unsigned int nr_fids,
struct afs_volsync *volsync)
{
struct afs_call *call;
__be32 *bp;
int i;
_enter(",%x,{%llx:%llu},%u",
key_serial(fc->key), fids[0].vid, fids[1].vnode, nr_fids);
call = afs_alloc_flat_call(net, &yfs_RXYFSInlineBulkStatus,
sizeof(__be32) +
sizeof(__be32) +
sizeof(__be32) +
sizeof(struct yfs_xdr_YFSFid) * nr_fids,
sizeof(struct yfs_xdr_YFSFetchStatus));
if (!call) {
fc->ac.error = -ENOMEM;
return -ENOMEM;
}
call->key = fc->key;
call->reply[0] = NULL; /* vnode for fid[0] */
call->reply[1] = statuses;
call->reply[2] = callbacks;
call->reply[3] = volsync;
call->count2 = nr_fids;
/* marshall the parameters */
bp = call->request;
bp = xdr_encode_u32(bp, YFSINLINEBULKSTATUS);
bp = xdr_encode_u32(bp, 0); /* RPCFlags */
bp = xdr_encode_u32(bp, nr_fids);
for (i = 0; i < nr_fids; i++)
bp = xdr_encode_YFSFid(bp, &fids[i]);
yfs_check_req(call, bp);
call->cb_break = fc->cb_break;
afs_use_fs_server(call, fc->cbi);
trace_afs_make_fs_call(call, &fids[0]);
return afs_make_call(&fc->ac, call, GFP_NOFS, false);
}
include/trace/events/afs.h
View file @ 30062bd1
...@@ -54,6 +54,35 @@ enum afs_fs_operation { ...@@ -54,6 +54,35 @@ enum afs_fs_operation {
afs_FS_StoreData64 = 65538, /* AFS Store file data */ afs_FS_StoreData64 = 65538, /* AFS Store file data */
afs_FS_GiveUpAllCallBacks = 65539, /* AFS Give up all our callbacks on a server */ afs_FS_GiveUpAllCallBacks = 65539, /* AFS Give up all our callbacks on a server */
afs_FS_GetCapabilities = 65540, /* AFS Get FS server capabilities */ afs_FS_GetCapabilities = 65540, /* AFS Get FS server capabilities */
yfs_FS_FetchData = 130, /* YFS Fetch file data */
yfs_FS_FetchACL = 64131, /* YFS Fetch file ACL */
yfs_FS_FetchStatus = 64132, /* YFS Fetch file status */
yfs_FS_StoreACL = 64134, /* YFS Store file ACL */
yfs_FS_StoreStatus = 64135, /* YFS Store file status */
yfs_FS_RemoveFile = 64136, /* YFS Remove a file */
yfs_FS_CreateFile = 64137, /* YFS Create a file */
yfs_FS_Rename = 64138, /* YFS Rename or move a file or directory */
yfs_FS_Symlink = 64139, /* YFS Create a symbolic link */
yfs_FS_Link = 64140, /* YFS Create a hard link */
yfs_FS_MakeDir = 64141, /* YFS Create a directory */
yfs_FS_RemoveDir = 64142, /* YFS Remove a directory */
yfs_FS_GetVolumeStatus = 64149, /* YFS Get volume status information */
yfs_FS_SetVolumeStatus = 64150, /* YFS Set volume status information */
yfs_FS_SetLock = 64156, /* YFS Request a file lock */
yfs_FS_ExtendLock = 64157, /* YFS Extend a file lock */
yfs_FS_ReleaseLock = 64158, /* YFS Release a file lock */
yfs_FS_Lookup = 64161, /* YFS lookup file in directory */
yfs_FS_FlushCPS = 64165,
yfs_FS_FetchOpaqueACL = 64168,
yfs_FS_WhoAmI = 64170,
yfs_FS_RemoveACL = 64171,
yfs_FS_RemoveFile2 = 64173,
yfs_FS_StoreOpaqueACL2 = 64174,
yfs_FS_InlineBulkStatus = 64536, /* YFS Fetch multiple file statuses with errors */
yfs_FS_FetchData64 = 64537, /* YFS Fetch file data */
yfs_FS_StoreData64 = 64538, /* YFS Store file data */
yfs_FS_UpdateSymlink = 64540,
}; };
enum afs_vl_operation { enum afs_vl_operation {
...@@ -156,7 +185,34 @@ enum afs_file_error { ...@@ -156,7 +185,34 @@ enum afs_file_error {
EM(afs_FS_FetchData64, "FS.FetchData64") \ EM(afs_FS_FetchData64, "FS.FetchData64") \
EM(afs_FS_StoreData64, "FS.StoreData64") \ EM(afs_FS_StoreData64, "FS.StoreData64") \
EM(afs_FS_GiveUpAllCallBacks, "FS.GiveUpAllCallBacks") \ EM(afs_FS_GiveUpAllCallBacks, "FS.GiveUpAllCallBacks") \
E_(afs_FS_GetCapabilities, "FS.GetCapabilities") EM(afs_FS_GetCapabilities, "FS.GetCapabilities") \
EM(yfs_FS_FetchACL, "YFS.FetchACL") \
EM(yfs_FS_FetchStatus, "YFS.FetchStatus") \
EM(yfs_FS_StoreACL, "YFS.StoreACL") \
EM(yfs_FS_StoreStatus, "YFS.StoreStatus") \
EM(yfs_FS_RemoveFile, "YFS.RemoveFile") \
EM(yfs_FS_CreateFile, "YFS.CreateFile") \
EM(yfs_FS_Rename, "YFS.Rename") \
EM(yfs_FS_Symlink, "YFS.Symlink") \
EM(yfs_FS_Link, "YFS.Link") \
EM(yfs_FS_MakeDir, "YFS.MakeDir") \
EM(yfs_FS_RemoveDir, "YFS.RemoveDir") \
EM(yfs_FS_GetVolumeStatus, "YFS.GetVolumeStatus") \
EM(yfs_FS_SetVolumeStatus, "YFS.SetVolumeStatus") \
EM(yfs_FS_SetLock, "YFS.SetLock") \
EM(yfs_FS_ExtendLock, "YFS.ExtendLock") \
EM(yfs_FS_ReleaseLock, "YFS.ReleaseLock") \
EM(yfs_FS_Lookup, "YFS.Lookup") \
EM(yfs_FS_FlushCPS, "YFS.FlushCPS") \
EM(yfs_FS_FetchOpaqueACL, "YFS.FetchOpaqueACL") \
EM(yfs_FS_WhoAmI, "YFS.WhoAmI") \
EM(yfs_FS_RemoveACL, "YFS.RemoveACL") \
EM(yfs_FS_RemoveFile2, "YFS.RemoveFile2") \
EM(yfs_FS_StoreOpaqueACL2, "YFS.StoreOpaqueACL2") \
EM(yfs_FS_InlineBulkStatus, "YFS.InlineBulkStatus") \
EM(yfs_FS_FetchData64, "YFS.FetchData64") \
EM(yfs_FS_StoreData64, "YFS.StoreData64") \
E_(yfs_FS_UpdateSymlink, "YFS.UpdateSymlink")
#define afs_vl_operations \ #define afs_vl_operations \
EM(afs_VL_GetEntryByNameU, "VL.GetEntryByNameU") \ EM(afs_VL_GetEntryByNameU, "VL.GetEntryByNameU") \
......
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