summaryrefslogtreecommitdiffstats
path: root/fs/9p
diff options
context:
space:
mode:
Diffstat (limited to 'fs/9p')
-rw-r--r--fs/9p/v9fs.c2
-rw-r--r--fs/9p/v9fs.h34
-rw-r--r--fs/9p/v9fs_vfs.h11
-rw-r--r--fs/9p/vfs_dir.c4
-rw-r--r--fs/9p/vfs_file.c40
-rw-r--r--fs/9p/vfs_inode.c181
-rw-r--r--fs/9p/vfs_inode_dotl.c214
-rw-r--r--fs/9p/vfs_super.c29
8 files changed, 134 insertions, 381 deletions
diff --git a/fs/9p/v9fs.c b/fs/9p/v9fs.c
index 61dbe52bb3..281a1ed03a 100644
--- a/fs/9p/v9fs.c
+++ b/fs/9p/v9fs.c
@@ -637,7 +637,7 @@ static int v9fs_init_inode_cache(void)
v9fs_inode_cache = kmem_cache_create("v9fs_inode_cache",
sizeof(struct v9fs_inode),
0, (SLAB_RECLAIM_ACCOUNT|
- SLAB_MEM_SPREAD|SLAB_ACCOUNT),
+ SLAB_ACCOUNT),
v9fs_inode_init_once);
if (!v9fs_inode_cache)
return -ENOMEM;
diff --git a/fs/9p/v9fs.h b/fs/9p/v9fs.h
index 698c43dd5d..1775fcc7f0 100644
--- a/fs/9p/v9fs.h
+++ b/fs/9p/v9fs.h
@@ -179,16 +179,14 @@ extern int v9fs_vfs_rename(struct mnt_idmap *idmap,
struct inode *old_dir, struct dentry *old_dentry,
struct inode *new_dir, struct dentry *new_dentry,
unsigned int flags);
-extern struct inode *v9fs_inode_from_fid(struct v9fs_session_info *v9ses,
- struct p9_fid *fid,
- struct super_block *sb, int new);
+extern struct inode *v9fs_fid_iget(struct super_block *sb, struct p9_fid *fid,
+ bool new);
extern const struct inode_operations v9fs_dir_inode_operations_dotl;
extern const struct inode_operations v9fs_file_inode_operations_dotl;
extern const struct inode_operations v9fs_symlink_inode_operations_dotl;
extern const struct netfs_request_ops v9fs_req_ops;
-extern struct inode *v9fs_inode_from_fid_dotl(struct v9fs_session_info *v9ses,
- struct p9_fid *fid,
- struct super_block *sb, int new);
+extern struct inode *v9fs_fid_iget_dotl(struct super_block *sb,
+ struct p9_fid *fid, bool new);
/* other default globals */
#define V9FS_PORT 564
@@ -227,30 +225,12 @@ static inline int v9fs_proto_dotl(struct v9fs_session_info *v9ses)
*/
static inline struct inode *
v9fs_get_inode_from_fid(struct v9fs_session_info *v9ses, struct p9_fid *fid,
- struct super_block *sb)
+ struct super_block *sb, bool new)
{
if (v9fs_proto_dotl(v9ses))
- return v9fs_inode_from_fid_dotl(v9ses, fid, sb, 0);
+ return v9fs_fid_iget_dotl(sb, fid, new);
else
- return v9fs_inode_from_fid(v9ses, fid, sb, 0);
-}
-
-/**
- * v9fs_get_new_inode_from_fid - Helper routine to populate an inode by
- * issuing a attribute request
- * @v9ses: session information
- * @fid: fid to issue attribute request for
- * @sb: superblock on which to create inode
- *
- */
-static inline struct inode *
-v9fs_get_new_inode_from_fid(struct v9fs_session_info *v9ses, struct p9_fid *fid,
- struct super_block *sb)
-{
- if (v9fs_proto_dotl(v9ses))
- return v9fs_inode_from_fid_dotl(v9ses, fid, sb, 1);
- else
- return v9fs_inode_from_fid(v9ses, fid, sb, 1);
+ return v9fs_fid_iget(sb, fid, new);
}
#endif
diff --git a/fs/9p/v9fs_vfs.h b/fs/9p/v9fs_vfs.h
index 0e8418066a..7923c3c347 100644
--- a/fs/9p/v9fs_vfs.h
+++ b/fs/9p/v9fs_vfs.h
@@ -40,13 +40,16 @@ extern struct kmem_cache *v9fs_inode_cache;
struct inode *v9fs_alloc_inode(struct super_block *sb);
void v9fs_free_inode(struct inode *inode);
-struct inode *v9fs_get_inode(struct super_block *sb, umode_t mode,
- dev_t rdev);
void v9fs_set_netfs_context(struct inode *inode);
int v9fs_init_inode(struct v9fs_session_info *v9ses,
- struct inode *inode, umode_t mode, dev_t rdev);
+ struct inode *inode, struct p9_qid *qid, umode_t mode, dev_t rdev);
void v9fs_evict_inode(struct inode *inode);
-ino_t v9fs_qid2ino(struct p9_qid *qid);
+#if (BITS_PER_LONG == 32)
+#define QID2INO(q) ((ino_t) (((q)->path+2) ^ (((q)->path) >> 32)))
+#else
+#define QID2INO(q) ((ino_t) ((q)->path+2))
+#endif
+
void v9fs_stat2inode(struct p9_wstat *stat, struct inode *inode,
struct super_block *sb, unsigned int flags);
void v9fs_stat2inode_dotl(struct p9_stat_dotl *stat, struct inode *inode,
diff --git a/fs/9p/vfs_dir.c b/fs/9p/vfs_dir.c
index 4102759a5c..e0d34e4e90 100644
--- a/fs/9p/vfs_dir.c
+++ b/fs/9p/vfs_dir.c
@@ -127,7 +127,7 @@ static int v9fs_dir_readdir(struct file *file, struct dir_context *ctx)
}
over = !dir_emit(ctx, st.name, strlen(st.name),
- v9fs_qid2ino(&st.qid), dt_type(&st));
+ QID2INO(&st.qid), dt_type(&st));
p9stat_free(&st);
if (over)
return 0;
@@ -184,7 +184,7 @@ static int v9fs_dir_readdir_dotl(struct file *file, struct dir_context *ctx)
if (!dir_emit(ctx, curdirent.d_name,
strlen(curdirent.d_name),
- v9fs_qid2ino(&curdirent.qid),
+ QID2INO(&curdirent.qid),
curdirent.d_type))
return 0;
diff --git a/fs/9p/vfs_file.c b/fs/9p/vfs_file.c
index a504240c81..348cc90bf9 100644
--- a/fs/9p/vfs_file.c
+++ b/fs/9p/vfs_file.c
@@ -107,7 +107,7 @@ static int v9fs_file_lock(struct file *filp, int cmd, struct file_lock *fl)
p9_debug(P9_DEBUG_VFS, "filp: %p lock: %p\n", filp, fl);
- if ((IS_SETLK(cmd) || IS_SETLKW(cmd)) && fl->fl_type != F_UNLCK) {
+ if ((IS_SETLK(cmd) || IS_SETLKW(cmd)) && fl->c.flc_type != F_UNLCK) {
filemap_write_and_wait(inode->i_mapping);
invalidate_mapping_pages(&inode->i_data, 0, -1);
}
@@ -121,13 +121,12 @@ static int v9fs_file_do_lock(struct file *filp, int cmd, struct file_lock *fl)
struct p9_fid *fid;
uint8_t status = P9_LOCK_ERROR;
int res = 0;
- unsigned char fl_type;
struct v9fs_session_info *v9ses;
fid = filp->private_data;
BUG_ON(fid == NULL);
- BUG_ON((fl->fl_flags & FL_POSIX) != FL_POSIX);
+ BUG_ON((fl->c.flc_flags & FL_POSIX) != FL_POSIX);
res = locks_lock_file_wait(filp, fl);
if (res < 0)
@@ -136,7 +135,7 @@ static int v9fs_file_do_lock(struct file *filp, int cmd, struct file_lock *fl)
/* convert posix lock to p9 tlock args */
memset(&flock, 0, sizeof(flock));
/* map the lock type */
- switch (fl->fl_type) {
+ switch (fl->c.flc_type) {
case F_RDLCK:
flock.type = P9_LOCK_TYPE_RDLCK;
break;
@@ -152,7 +151,7 @@ static int v9fs_file_do_lock(struct file *filp, int cmd, struct file_lock *fl)
flock.length = 0;
else
flock.length = fl->fl_end - fl->fl_start + 1;
- flock.proc_id = fl->fl_pid;
+ flock.proc_id = fl->c.flc_pid;
flock.client_id = fid->clnt->name;
if (IS_SETLKW(cmd))
flock.flags = P9_LOCK_FLAGS_BLOCK;
@@ -207,12 +206,13 @@ out_unlock:
* incase server returned error for lock request, revert
* it locally
*/
- if (res < 0 && fl->fl_type != F_UNLCK) {
- fl_type = fl->fl_type;
- fl->fl_type = F_UNLCK;
+ if (res < 0 && fl->c.flc_type != F_UNLCK) {
+ unsigned char type = fl->c.flc_type;
+
+ fl->c.flc_type = F_UNLCK;
/* Even if this fails we want to return the remote error */
locks_lock_file_wait(filp, fl);
- fl->fl_type = fl_type;
+ fl->c.flc_type = type;
}
if (flock.client_id != fid->clnt->name)
kfree(flock.client_id);
@@ -234,7 +234,7 @@ static int v9fs_file_getlock(struct file *filp, struct file_lock *fl)
* if we have a conflicting lock locally, no need to validate
* with server
*/
- if (fl->fl_type != F_UNLCK)
+ if (fl->c.flc_type != F_UNLCK)
return res;
/* convert posix lock to p9 tgetlock args */
@@ -245,7 +245,7 @@ static int v9fs_file_getlock(struct file *filp, struct file_lock *fl)
glock.length = 0;
else
glock.length = fl->fl_end - fl->fl_start + 1;
- glock.proc_id = fl->fl_pid;
+ glock.proc_id = fl->c.flc_pid;
glock.client_id = fid->clnt->name;
res = p9_client_getlock_dotl(fid, &glock);
@@ -254,13 +254,13 @@ static int v9fs_file_getlock(struct file *filp, struct file_lock *fl)
/* map 9p lock type to os lock type */
switch (glock.type) {
case P9_LOCK_TYPE_RDLCK:
- fl->fl_type = F_RDLCK;
+ fl->c.flc_type = F_RDLCK;
break;
case P9_LOCK_TYPE_WRLCK:
- fl->fl_type = F_WRLCK;
+ fl->c.flc_type = F_WRLCK;
break;
case P9_LOCK_TYPE_UNLCK:
- fl->fl_type = F_UNLCK;
+ fl->c.flc_type = F_UNLCK;
break;
}
if (glock.type != P9_LOCK_TYPE_UNLCK) {
@@ -269,7 +269,7 @@ static int v9fs_file_getlock(struct file *filp, struct file_lock *fl)
fl->fl_end = OFFSET_MAX;
else
fl->fl_end = glock.start + glock.length - 1;
- fl->fl_pid = -glock.proc_id;
+ fl->c.flc_pid = -glock.proc_id;
}
out:
if (glock.client_id != fid->clnt->name)
@@ -293,7 +293,7 @@ static int v9fs_file_lock_dotl(struct file *filp, int cmd, struct file_lock *fl)
p9_debug(P9_DEBUG_VFS, "filp: %p cmd:%d lock: %p name: %pD\n",
filp, cmd, fl, filp);
- if ((IS_SETLK(cmd) || IS_SETLKW(cmd)) && fl->fl_type != F_UNLCK) {
+ if ((IS_SETLK(cmd) || IS_SETLKW(cmd)) && fl->c.flc_type != F_UNLCK) {
filemap_write_and_wait(inode->i_mapping);
invalidate_mapping_pages(&inode->i_data, 0, -1);
}
@@ -324,16 +324,16 @@ static int v9fs_file_flock_dotl(struct file *filp, int cmd,
p9_debug(P9_DEBUG_VFS, "filp: %p cmd:%d lock: %p name: %pD\n",
filp, cmd, fl, filp);
- if (!(fl->fl_flags & FL_FLOCK))
+ if (!(fl->c.flc_flags & FL_FLOCK))
goto out_err;
- if ((IS_SETLK(cmd) || IS_SETLKW(cmd)) && fl->fl_type != F_UNLCK) {
+ if ((IS_SETLK(cmd) || IS_SETLKW(cmd)) && fl->c.flc_type != F_UNLCK) {
filemap_write_and_wait(inode->i_mapping);
invalidate_mapping_pages(&inode->i_data, 0, -1);
}
/* Convert flock to posix lock */
- fl->fl_flags |= FL_POSIX;
- fl->fl_flags ^= FL_FLOCK;
+ fl->c.flc_flags |= FL_POSIX;
+ fl->c.flc_flags ^= FL_FLOCK;
if (IS_SETLK(cmd) | IS_SETLKW(cmd))
ret = v9fs_file_do_lock(filp, cmd, fl);
diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c
index 0fde0ab77e..7a3308d776 100644
--- a/fs/9p/vfs_inode.c
+++ b/fs/9p/vfs_inode.c
@@ -256,9 +256,12 @@ void v9fs_set_netfs_context(struct inode *inode)
}
int v9fs_init_inode(struct v9fs_session_info *v9ses,
- struct inode *inode, umode_t mode, dev_t rdev)
+ struct inode *inode, struct p9_qid *qid, umode_t mode, dev_t rdev)
{
int err = 0;
+ struct v9fs_inode *v9inode = V9FS_I(inode);
+
+ memcpy(&v9inode->qid, qid, sizeof(struct p9_qid));
inode_init_owner(&nop_mnt_idmap, inode, NULL, mode);
inode->i_blocks = 0;
@@ -335,36 +338,6 @@ error:
}
/**
- * v9fs_get_inode - helper function to setup an inode
- * @sb: superblock
- * @mode: mode to setup inode with
- * @rdev: The device numbers to set
- */
-
-struct inode *v9fs_get_inode(struct super_block *sb, umode_t mode, dev_t rdev)
-{
- int err;
- struct inode *inode;
- struct v9fs_session_info *v9ses = sb->s_fs_info;
-
- p9_debug(P9_DEBUG_VFS, "super block: %p mode: %ho\n", sb, mode);
-
- inode = new_inode(sb);
- if (!inode) {
- pr_warn("%s (%d): Problem allocating inode\n",
- __func__, task_pid_nr(current));
- return ERR_PTR(-ENOMEM);
- }
- err = v9fs_init_inode(v9ses, inode, mode, rdev);
- if (err) {
- iput(inode);
- return ERR_PTR(err);
- }
- v9fs_set_netfs_context(inode);
- return inode;
-}
-
-/**
* v9fs_evict_inode - Remove an inode from the inode cache
* @inode: inode to release
*
@@ -391,107 +364,59 @@ void v9fs_evict_inode(struct inode *inode)
clear_inode(inode);
}
-static int v9fs_test_inode(struct inode *inode, void *data)
-{
- int umode;
- dev_t rdev;
- struct v9fs_inode *v9inode = V9FS_I(inode);
- struct p9_wstat *st = (struct p9_wstat *)data;
- struct v9fs_session_info *v9ses = v9fs_inode2v9ses(inode);
-
- umode = p9mode2unixmode(v9ses, st, &rdev);
- /* don't match inode of different type */
- if (inode_wrong_type(inode, umode))
- return 0;
-
- /* compare qid details */
- if (memcmp(&v9inode->qid.version,
- &st->qid.version, sizeof(v9inode->qid.version)))
- return 0;
-
- if (v9inode->qid.type != st->qid.type)
- return 0;
-
- if (v9inode->qid.path != st->qid.path)
- return 0;
- return 1;
-}
-
-static int v9fs_test_new_inode(struct inode *inode, void *data)
-{
- return 0;
-}
-
-static int v9fs_set_inode(struct inode *inode, void *data)
-{
- struct v9fs_inode *v9inode = V9FS_I(inode);
- struct p9_wstat *st = (struct p9_wstat *)data;
-
- memcpy(&v9inode->qid, &st->qid, sizeof(st->qid));
- return 0;
-}
-
-static struct inode *v9fs_qid_iget(struct super_block *sb,
- struct p9_qid *qid,
- struct p9_wstat *st,
- int new)
+struct inode *
+v9fs_fid_iget(struct super_block *sb, struct p9_fid *fid, bool new)
{
dev_t rdev;
int retval;
umode_t umode;
- unsigned long i_ino;
struct inode *inode;
+ struct p9_wstat *st;
struct v9fs_session_info *v9ses = sb->s_fs_info;
- int (*test)(struct inode *inode, void *data);
-
- if (new)
- test = v9fs_test_new_inode;
- else
- test = v9fs_test_inode;
- i_ino = v9fs_qid2ino(qid);
- inode = iget5_locked(sb, i_ino, test, v9fs_set_inode, st);
- if (!inode)
+ inode = iget_locked(sb, QID2INO(&fid->qid));
+ if (unlikely(!inode))
return ERR_PTR(-ENOMEM);
- if (!(inode->i_state & I_NEW))
- return inode;
+ if (!(inode->i_state & I_NEW)) {
+ if (!new) {
+ goto done;
+ } else {
+ p9_debug(P9_DEBUG_VFS, "WARNING: Inode collision %ld\n",
+ inode->i_ino);
+ iput(inode);
+ remove_inode_hash(inode);
+ inode = iget_locked(sb, QID2INO(&fid->qid));
+ WARN_ON(!(inode->i_state & I_NEW));
+ }
+ }
+
/*
* initialize the inode with the stat info
* FIXME!! we may need support for stale inodes
* later.
*/
- inode->i_ino = i_ino;
+ st = p9_client_stat(fid);
+ if (IS_ERR(st)) {
+ retval = PTR_ERR(st);
+ goto error;
+ }
+
umode = p9mode2unixmode(v9ses, st, &rdev);
- retval = v9fs_init_inode(v9ses, inode, umode, rdev);
+ retval = v9fs_init_inode(v9ses, inode, &fid->qid, umode, rdev);
+ v9fs_stat2inode(st, inode, sb, 0);
+ p9stat_free(st);
+ kfree(st);
if (retval)
goto error;
- v9fs_stat2inode(st, inode, sb, 0);
v9fs_set_netfs_context(inode);
v9fs_cache_inode_get_cookie(inode);
unlock_new_inode(inode);
+done:
return inode;
error:
iget_failed(inode);
return ERR_PTR(retval);
-
-}
-
-struct inode *
-v9fs_inode_from_fid(struct v9fs_session_info *v9ses, struct p9_fid *fid,
- struct super_block *sb, int new)
-{
- struct p9_wstat *st;
- struct inode *inode = NULL;
-
- st = p9_client_stat(fid);
- if (IS_ERR(st))
- return ERR_CAST(st);
-
- inode = v9fs_qid_iget(sb, &st->qid, st, new);
- p9stat_free(st);
- kfree(st);
- return inode;
}
/**
@@ -523,8 +448,15 @@ static int v9fs_at_to_dotl_flags(int flags)
*/
static void v9fs_dec_count(struct inode *inode)
{
- if (!S_ISDIR(inode->i_mode) || inode->i_nlink > 2)
- drop_nlink(inode);
+ if (!S_ISDIR(inode->i_mode) || inode->i_nlink > 2) {
+ if (inode->i_nlink) {
+ drop_nlink(inode);
+ } else {
+ p9_debug(P9_DEBUG_VFS,
+ "WARNING: unexpected i_nlink zero %d inode %ld\n",
+ inode->i_nlink, inode->i_ino);
+ }
+ }
}
/**
@@ -575,6 +507,9 @@ static int v9fs_remove(struct inode *dir, struct dentry *dentry, int flags)
} else
v9fs_dec_count(inode);
+ if (inode->i_nlink <= 0) /* no more refs unhash it */
+ remove_inode_hash(inode);
+
v9fs_invalidate_inode_attr(inode);
v9fs_invalidate_inode_attr(dir);
@@ -640,7 +575,7 @@ v9fs_create(struct v9fs_session_info *v9ses, struct inode *dir,
/*
* instantiate inode and assign the unopened fid to the dentry
*/
- inode = v9fs_get_new_inode_from_fid(v9ses, fid, dir->i_sb);
+ inode = v9fs_get_inode_from_fid(v9ses, fid, dir->i_sb, true);
if (IS_ERR(inode)) {
err = PTR_ERR(inode);
p9_debug(P9_DEBUG_VFS,
@@ -768,10 +703,8 @@ struct dentry *v9fs_vfs_lookup(struct inode *dir, struct dentry *dentry,
inode = NULL;
else if (IS_ERR(fid))
inode = ERR_CAST(fid);
- else if (v9ses->cache & (CACHE_META|CACHE_LOOSE))
- inode = v9fs_get_inode_from_fid(v9ses, fid, dir->i_sb);
else
- inode = v9fs_get_new_inode_from_fid(v9ses, fid, dir->i_sb);
+ inode = v9fs_get_inode_from_fid(v9ses, fid, dir->i_sb, false);
/*
* If we had a rename on the server and a parallel lookup
* for the new name, then make sure we instantiate with
@@ -1192,26 +1125,6 @@ v9fs_stat2inode(struct p9_wstat *stat, struct inode *inode,
}
/**
- * v9fs_qid2ino - convert qid into inode number
- * @qid: qid to hash
- *
- * BUG: potential for inode number collisions?
- */
-
-ino_t v9fs_qid2ino(struct p9_qid *qid)
-{
- u64 path = qid->path + 2;
- ino_t i = 0;
-
- if (sizeof(ino_t) == sizeof(path))
- memcpy(&i, &path, sizeof(ino_t));
- else
- i = (ino_t) (path ^ (path >> 32));
-
- return i;
-}
-
-/**
* v9fs_vfs_get_link - follow a symlink path
* @dentry: dentry for symlink
* @inode: inode for symlink
diff --git a/fs/9p/vfs_inode_dotl.c b/fs/9p/vfs_inode_dotl.c
index 3505227e17..c61b97bd13 100644
--- a/fs/9p/vfs_inode_dotl.c
+++ b/fs/9p/vfs_inode_dotl.c
@@ -52,82 +52,50 @@ static kgid_t v9fs_get_fsgid_for_create(struct inode *dir_inode)
return current_fsgid();
}
-static int v9fs_test_inode_dotl(struct inode *inode, void *data)
-{
- struct v9fs_inode *v9inode = V9FS_I(inode);
- struct p9_stat_dotl *st = (struct p9_stat_dotl *)data;
-
- /* don't match inode of different type */
- if (inode_wrong_type(inode, st->st_mode))
- return 0;
-
- if (inode->i_generation != st->st_gen)
- return 0;
-
- /* compare qid details */
- if (memcmp(&v9inode->qid.version,
- &st->qid.version, sizeof(v9inode->qid.version)))
- return 0;
-
- if (v9inode->qid.type != st->qid.type)
- return 0;
- if (v9inode->qid.path != st->qid.path)
- return 0;
- return 1;
-}
-
-/* Always get a new inode */
-static int v9fs_test_new_inode_dotl(struct inode *inode, void *data)
-{
- return 0;
-}
-static int v9fs_set_inode_dotl(struct inode *inode, void *data)
-{
- struct v9fs_inode *v9inode = V9FS_I(inode);
- struct p9_stat_dotl *st = (struct p9_stat_dotl *)data;
-
- memcpy(&v9inode->qid, &st->qid, sizeof(st->qid));
- inode->i_generation = st->st_gen;
- return 0;
-}
-
-static struct inode *v9fs_qid_iget_dotl(struct super_block *sb,
- struct p9_qid *qid,
- struct p9_fid *fid,
- struct p9_stat_dotl *st,
- int new)
+struct inode *
+v9fs_fid_iget_dotl(struct super_block *sb, struct p9_fid *fid, bool new)
{
int retval;
- unsigned long i_ino;
struct inode *inode;
+ struct p9_stat_dotl *st;
struct v9fs_session_info *v9ses = sb->s_fs_info;
- int (*test)(struct inode *inode, void *data);
- if (new)
- test = v9fs_test_new_inode_dotl;
- else
- test = v9fs_test_inode_dotl;
-
- i_ino = v9fs_qid2ino(qid);
- inode = iget5_locked(sb, i_ino, test, v9fs_set_inode_dotl, st);
- if (!inode)
+ inode = iget_locked(sb, QID2INO(&fid->qid));
+ if (unlikely(!inode))
return ERR_PTR(-ENOMEM);
- if (!(inode->i_state & I_NEW))
- return inode;
+ if (!(inode->i_state & I_NEW)) {
+ if (!new) {
+ goto done;
+ } else { /* deal with race condition in inode number reuse */
+ p9_debug(P9_DEBUG_ERROR, "WARNING: Inode collision %lx\n",
+ inode->i_ino);
+ iput(inode);
+ remove_inode_hash(inode);
+ inode = iget_locked(sb, QID2INO(&fid->qid));
+ WARN_ON(!(inode->i_state & I_NEW));
+ }
+ }
+
/*
* initialize the inode with the stat info
* FIXME!! we may need support for stale inodes
* later.
*/
- inode->i_ino = i_ino;
- retval = v9fs_init_inode(v9ses, inode,
+ st = p9_client_getattr_dotl(fid, P9_STATS_BASIC | P9_STATS_GEN);
+ if (IS_ERR(st)) {
+ retval = PTR_ERR(st);
+ goto error;
+ }
+
+ retval = v9fs_init_inode(v9ses, inode, &fid->qid,
st->st_mode, new_decode_dev(st->st_rdev));
+ v9fs_stat2inode_dotl(st, inode, 0);
+ kfree(st);
if (retval)
goto error;
- v9fs_stat2inode_dotl(st, inode, 0);
v9fs_set_netfs_context(inode);
v9fs_cache_inode_get_cookie(inode);
retval = v9fs_get_acl(inode, fid);
@@ -135,27 +103,11 @@ static struct inode *v9fs_qid_iget_dotl(struct super_block *sb,
goto error;
unlock_new_inode(inode);
+done:
return inode;
error:
iget_failed(inode);
return ERR_PTR(retval);
-
-}
-
-struct inode *
-v9fs_inode_from_fid_dotl(struct v9fs_session_info *v9ses, struct p9_fid *fid,
- struct super_block *sb, int new)
-{
- struct p9_stat_dotl *st;
- struct inode *inode = NULL;
-
- st = p9_client_getattr_dotl(fid, P9_STATS_BASIC | P9_STATS_GEN);
- if (IS_ERR(st))
- return ERR_CAST(st);
-
- inode = v9fs_qid_iget_dotl(sb, &st->qid, fid, st, new);
- kfree(st);
- return inode;
}
struct dotl_openflag_map {
@@ -307,7 +259,7 @@ v9fs_vfs_atomic_open_dotl(struct inode *dir, struct dentry *dentry,
p9_debug(P9_DEBUG_VFS, "p9_client_walk failed %d\n", err);
goto out;
}
- inode = v9fs_get_new_inode_from_fid(v9ses, fid, dir->i_sb);
+ inode = v9fs_fid_iget_dotl(dir->i_sb, fid, true);
if (IS_ERR(inode)) {
err = PTR_ERR(inode);
p9_debug(P9_DEBUG_VFS, "inode creation failed %d\n", err);
@@ -357,7 +309,6 @@ static int v9fs_vfs_mkdir_dotl(struct mnt_idmap *idmap,
umode_t omode)
{
int err;
- struct v9fs_session_info *v9ses;
struct p9_fid *fid = NULL, *dfid = NULL;
kgid_t gid;
const unsigned char *name;
@@ -367,7 +318,6 @@ static int v9fs_vfs_mkdir_dotl(struct mnt_idmap *idmap,
struct posix_acl *dacl = NULL, *pacl = NULL;
p9_debug(P9_DEBUG_VFS, "name %pd\n", dentry);
- v9ses = v9fs_inode2v9ses(dir);
omode |= S_IFDIR;
if (dir->i_mode & S_ISGID)
@@ -402,32 +352,17 @@ static int v9fs_vfs_mkdir_dotl(struct mnt_idmap *idmap,
}
/* instantiate inode and assign the unopened fid to the dentry */
- if (v9ses->cache & (CACHE_META|CACHE_LOOSE)) {
- inode = v9fs_get_new_inode_from_fid(v9ses, fid, dir->i_sb);
- if (IS_ERR(inode)) {
- err = PTR_ERR(inode);
- p9_debug(P9_DEBUG_VFS, "inode creation failed %d\n",
- err);
- goto error;
- }
- v9fs_fid_add(dentry, &fid);
- v9fs_set_create_acl(inode, fid, dacl, pacl);
- d_instantiate(dentry, inode);
- err = 0;
- } else {
- /*
- * Not in cached mode. No need to populate
- * inode with stat. We need to get an inode
- * so that we can set the acl with dentry
- */
- inode = v9fs_get_inode(dir->i_sb, mode, 0);
- if (IS_ERR(inode)) {
- err = PTR_ERR(inode);
- goto error;
- }
- v9fs_set_create_acl(inode, fid, dacl, pacl);
- d_instantiate(dentry, inode);
+ inode = v9fs_fid_iget_dotl(dir->i_sb, fid, true);
+ if (IS_ERR(inode)) {
+ err = PTR_ERR(inode);
+ p9_debug(P9_DEBUG_VFS, "inode creation failed %d\n",
+ err);
+ goto error;
}
+ v9fs_fid_add(dentry, &fid);
+ v9fs_set_create_acl(inode, fid, dacl, pacl);
+ d_instantiate(dentry, inode);
+ err = 0;
inc_nlink(dir);
v9fs_invalidate_inode_attr(dir);
error:
@@ -709,14 +644,11 @@ v9fs_vfs_symlink_dotl(struct mnt_idmap *idmap, struct inode *dir,
kgid_t gid;
const unsigned char *name;
struct p9_qid qid;
- struct inode *inode;
struct p9_fid *dfid;
struct p9_fid *fid = NULL;
- struct v9fs_session_info *v9ses;
name = dentry->d_name.name;
p9_debug(P9_DEBUG_VFS, "%lu,%s,%s\n", dir->i_ino, name, symname);
- v9ses = v9fs_inode2v9ses(dir);
dfid = v9fs_parent_fid(dentry);
if (IS_ERR(dfid)) {
@@ -736,36 +668,6 @@ v9fs_vfs_symlink_dotl(struct mnt_idmap *idmap, struct inode *dir,
}
v9fs_invalidate_inode_attr(dir);
- if (v9ses->cache & (CACHE_META|CACHE_LOOSE)) {
- /* Now walk from the parent so we can get an unopened fid. */
- fid = p9_client_walk(dfid, 1, &name, 1);
- if (IS_ERR(fid)) {
- err = PTR_ERR(fid);
- p9_debug(P9_DEBUG_VFS, "p9_client_walk failed %d\n",
- err);
- goto error;
- }
-
- /* instantiate inode and assign the unopened fid to dentry */
- inode = v9fs_get_new_inode_from_fid(v9ses, fid, dir->i_sb);
- if (IS_ERR(inode)) {
- err = PTR_ERR(inode);
- p9_debug(P9_DEBUG_VFS, "inode creation failed %d\n",
- err);
- goto error;
- }
- v9fs_fid_add(dentry, &fid);
- d_instantiate(dentry, inode);
- err = 0;
- } else {
- /* Not in cached mode. No need to populate inode with stat */
- inode = v9fs_get_inode(dir->i_sb, S_IFLNK, 0);
- if (IS_ERR(inode)) {
- err = PTR_ERR(inode);
- goto error;
- }
- d_instantiate(dentry, inode);
- }
error:
p9_fid_put(fid);
@@ -847,7 +749,6 @@ v9fs_vfs_mknod_dotl(struct mnt_idmap *idmap, struct inode *dir,
kgid_t gid;
const unsigned char *name;
umode_t mode;
- struct v9fs_session_info *v9ses;
struct p9_fid *fid = NULL, *dfid = NULL;
struct inode *inode;
struct p9_qid qid;
@@ -857,7 +758,6 @@ v9fs_vfs_mknod_dotl(struct mnt_idmap *idmap, struct inode *dir,
dir->i_ino, dentry, omode,
MAJOR(rdev), MINOR(rdev));
- v9ses = v9fs_inode2v9ses(dir);
dfid = v9fs_parent_fid(dentry);
if (IS_ERR(dfid)) {
err = PTR_ERR(dfid);
@@ -888,33 +788,17 @@ v9fs_vfs_mknod_dotl(struct mnt_idmap *idmap, struct inode *dir,
err);
goto error;
}
-
- /* instantiate inode and assign the unopened fid to the dentry */
- if (v9ses->cache & (CACHE_META|CACHE_LOOSE)) {
- inode = v9fs_get_new_inode_from_fid(v9ses, fid, dir->i_sb);
- if (IS_ERR(inode)) {
- err = PTR_ERR(inode);
- p9_debug(P9_DEBUG_VFS, "inode creation failed %d\n",
- err);
- goto error;
- }
- v9fs_set_create_acl(inode, fid, dacl, pacl);
- v9fs_fid_add(dentry, &fid);
- d_instantiate(dentry, inode);
- err = 0;
- } else {
- /*
- * Not in cached mode. No need to populate inode with stat.
- * socket syscall returns a fd, so we need instantiate
- */
- inode = v9fs_get_inode(dir->i_sb, mode, rdev);
- if (IS_ERR(inode)) {
- err = PTR_ERR(inode);
- goto error;
- }
- v9fs_set_create_acl(inode, fid, dacl, pacl);
- d_instantiate(dentry, inode);
+ inode = v9fs_fid_iget_dotl(dir->i_sb, fid, true);
+ if (IS_ERR(inode)) {
+ err = PTR_ERR(inode);
+ p9_debug(P9_DEBUG_VFS, "inode creation failed %d\n",
+ err);
+ goto error;
}
+ v9fs_set_create_acl(inode, fid, dacl, pacl);
+ v9fs_fid_add(dentry, &fid);
+ d_instantiate(dentry, inode);
+ err = 0;
error:
p9_fid_put(fid);
v9fs_put_acl(dacl, pacl);
diff --git a/fs/9p/vfs_super.c b/fs/9p/vfs_super.c
index 23cc67f29a..f52fdf4294 100644
--- a/fs/9p/vfs_super.c
+++ b/fs/9p/vfs_super.c
@@ -110,7 +110,6 @@ static struct dentry *v9fs_mount(struct file_system_type *fs_type, int flags,
struct inode *inode = NULL;
struct dentry *root = NULL;
struct v9fs_session_info *v9ses = NULL;
- umode_t mode = 0777 | S_ISVTX;
struct p9_fid *fid;
int retval = 0;
@@ -140,7 +139,7 @@ static struct dentry *v9fs_mount(struct file_system_type *fs_type, int flags,
else
sb->s_d_op = &v9fs_dentry_operations;
- inode = v9fs_get_inode(sb, S_IFDIR | mode, 0);
+ inode = v9fs_get_inode_from_fid(v9ses, fid, sb, true);
if (IS_ERR(inode)) {
retval = PTR_ERR(inode);
goto release_sb;
@@ -152,32 +151,6 @@ static struct dentry *v9fs_mount(struct file_system_type *fs_type, int flags,
goto release_sb;
}
sb->s_root = root;
- if (v9fs_proto_dotl(v9ses)) {
- struct p9_stat_dotl *st = NULL;
-
- st = p9_client_getattr_dotl(fid, P9_STATS_BASIC);
- if (IS_ERR(st)) {
- retval = PTR_ERR(st);
- goto release_sb;
- }
- d_inode(root)->i_ino = v9fs_qid2ino(&st->qid);
- v9fs_stat2inode_dotl(st, d_inode(root), 0);
- kfree(st);
- } else {
- struct p9_wstat *st = NULL;
-
- st = p9_client_stat(fid);
- if (IS_ERR(st)) {
- retval = PTR_ERR(st);
- goto release_sb;
- }
-
- d_inode(root)->i_ino = v9fs_qid2ino(&st->qid);
- v9fs_stat2inode(st, d_inode(root), sb, 0);
-
- p9stat_free(st);
- kfree(st);
- }
retval = v9fs_get_acl(inode, fid);
if (retval)
goto release_sb;