[PATCH] sem2mutex: vfs_rename_mutex
Semaphore to mutex conversion.
The conversion was generated via scripts, and the result was validated
automatically via a script as well.
Signed-off-by: Arjan van de Ven <arjan@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Cc: Al Viro <viro@ftp.linux.org.uk>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/fs/cifs/dir.c b/fs/cifs/dir.c
index fed55e3..632561d 100644
--- a/fs/cifs/dir.c
+++ b/fs/cifs/dir.c
@@ -138,9 +138,9 @@
cifs_sb = CIFS_SB(inode->i_sb);
pTcon = cifs_sb->tcon;
- down(&direntry->d_sb->s_vfs_rename_sem);
+ mutex_lock(&direntry->d_sb->s_vfs_rename_mutex);
full_path = build_path_from_dentry(direntry);
- up(&direntry->d_sb->s_vfs_rename_sem);
+ mutex_unlock(&direntry->d_sb->s_vfs_rename_mutex);
if(full_path == NULL) {
FreeXid(xid);
return -ENOMEM;
@@ -317,9 +317,9 @@
cifs_sb = CIFS_SB(inode->i_sb);
pTcon = cifs_sb->tcon;
- down(&direntry->d_sb->s_vfs_rename_sem);
+ mutex_lock(&direntry->d_sb->s_vfs_rename_mutex);
full_path = build_path_from_dentry(direntry);
- up(&direntry->d_sb->s_vfs_rename_sem);
+ mutex_unlock(&direntry->d_sb->s_vfs_rename_mutex);
if(full_path == NULL)
rc = -ENOMEM;
else if (pTcon->ses->capabilities & CAP_UNIX) {
diff --git a/fs/cifs/fcntl.c b/fs/cifs/fcntl.c
index a7a47bb..ec4dfe9 100644
--- a/fs/cifs/fcntl.c
+++ b/fs/cifs/fcntl.c
@@ -86,9 +86,9 @@
cifs_sb = CIFS_SB(file->f_dentry->d_sb);
pTcon = cifs_sb->tcon;
- down(&file->f_dentry->d_sb->s_vfs_rename_sem);
+ mutex_lock(&file->f_dentry->d_sb->s_vfs_rename_mutex);
full_path = build_path_from_dentry(file->f_dentry);
- up(&file->f_dentry->d_sb->s_vfs_rename_sem);
+ mutex_unlock(&file->f_dentry->d_sb->s_vfs_rename_mutex);
if(full_path == NULL) {
rc = -ENOMEM;
diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index 675bd25..165d674 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -203,9 +203,9 @@
}
}
- down(&inode->i_sb->s_vfs_rename_sem);
+ mutex_lock(&inode->i_sb->s_vfs_rename_mutex);
full_path = build_path_from_dentry(file->f_dentry);
- up(&inode->i_sb->s_vfs_rename_sem);
+ mutex_unlock(&inode->i_sb->s_vfs_rename_mutex);
if (full_path == NULL) {
FreeXid(xid);
return -ENOMEM;
diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index 5935991..ff93a9f 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -574,9 +574,9 @@
/* Unlink can be called from rename so we can not grab the sem here
since we deadlock otherwise */
-/* down(&direntry->d_sb->s_vfs_rename_sem);*/
+/* mutex_lock(&direntry->d_sb->s_vfs_rename_mutex);*/
full_path = build_path_from_dentry(direntry);
-/* up(&direntry->d_sb->s_vfs_rename_sem);*/
+/* mutex_unlock(&direntry->d_sb->s_vfs_rename_mutex);*/
if (full_path == NULL) {
FreeXid(xid);
return -ENOMEM;
@@ -718,9 +718,9 @@
cifs_sb = CIFS_SB(inode->i_sb);
pTcon = cifs_sb->tcon;
- down(&inode->i_sb->s_vfs_rename_sem);
+ mutex_lock(&inode->i_sb->s_vfs_rename_mutex);
full_path = build_path_from_dentry(direntry);
- up(&inode->i_sb->s_vfs_rename_sem);
+ mutex_unlock(&inode->i_sb->s_vfs_rename_mutex);
if (full_path == NULL) {
FreeXid(xid);
return -ENOMEM;
@@ -803,9 +803,9 @@
cifs_sb = CIFS_SB(inode->i_sb);
pTcon = cifs_sb->tcon;
- down(&inode->i_sb->s_vfs_rename_sem);
+ mutex_lock(&inode->i_sb->s_vfs_rename_mutex);
full_path = build_path_from_dentry(direntry);
- up(&inode->i_sb->s_vfs_rename_sem);
+ mutex_unlock(&inode->i_sb->s_vfs_rename_mutex);
if (full_path == NULL) {
FreeXid(xid);
return -ENOMEM;
@@ -1137,9 +1137,9 @@
rc = 0;
}
- down(&direntry->d_sb->s_vfs_rename_sem);
+ mutex_lock(&direntry->d_sb->s_vfs_rename_mutex);
full_path = build_path_from_dentry(direntry);
- up(&direntry->d_sb->s_vfs_rename_sem);
+ mutex_unlock(&direntry->d_sb->s_vfs_rename_mutex);
if (full_path == NULL) {
FreeXid(xid);
return -ENOMEM;
diff --git a/fs/cifs/link.c b/fs/cifs/link.c
index 0f99aae..8d0da7c 100644
--- a/fs/cifs/link.c
+++ b/fs/cifs/link.c
@@ -48,10 +48,10 @@
/* No need to check for cross device links since server will do that
BB note DFS case in future though (when we may have to check) */
- down(&inode->i_sb->s_vfs_rename_sem);
+ mutex_lock(&inode->i_sb->s_vfs_rename_mutex);
fromName = build_path_from_dentry(old_file);
toName = build_path_from_dentry(direntry);
- up(&inode->i_sb->s_vfs_rename_sem);
+ mutex_unlock(&inode->i_sb->s_vfs_rename_mutex);
if((fromName == NULL) || (toName == NULL)) {
rc = -ENOMEM;
goto cifs_hl_exit;
@@ -103,9 +103,9 @@
xid = GetXid();
- down(&direntry->d_sb->s_vfs_rename_sem);
+ mutex_lock(&direntry->d_sb->s_vfs_rename_mutex);
full_path = build_path_from_dentry(direntry);
- up(&direntry->d_sb->s_vfs_rename_sem);
+ mutex_unlock(&direntry->d_sb->s_vfs_rename_mutex);
if (!full_path)
goto out_no_free;
@@ -164,9 +164,9 @@
cifs_sb = CIFS_SB(inode->i_sb);
pTcon = cifs_sb->tcon;
- down(&inode->i_sb->s_vfs_rename_sem);
+ mutex_lock(&inode->i_sb->s_vfs_rename_mutex);
full_path = build_path_from_dentry(direntry);
- up(&inode->i_sb->s_vfs_rename_sem);
+ mutex_unlock(&inode->i_sb->s_vfs_rename_mutex);
if(full_path == NULL) {
FreeXid(xid);
@@ -232,9 +232,9 @@
/* BB would it be safe against deadlock to grab this sem
even though rename itself grabs the sem and calls lookup? */
-/* down(&inode->i_sb->s_vfs_rename_sem);*/
+/* mutex_lock(&inode->i_sb->s_vfs_rename_mutex);*/
full_path = build_path_from_dentry(direntry);
-/* up(&inode->i_sb->s_vfs_rename_sem);*/
+/* mutex_unlock(&inode->i_sb->s_vfs_rename_mutex);*/
if(full_path == NULL) {
FreeXid(xid);
diff --git a/fs/cifs/readdir.c b/fs/cifs/readdir.c
index 288cc04..edb3b6e 100644
--- a/fs/cifs/readdir.c
+++ b/fs/cifs/readdir.c
@@ -404,9 +404,9 @@
if(pTcon == NULL)
return -EINVAL;
- down(&file->f_dentry->d_sb->s_vfs_rename_sem);
+ mutex_lock(&file->f_dentry->d_sb->s_vfs_rename_mutex);
full_path = build_path_from_dentry(file->f_dentry);
- up(&file->f_dentry->d_sb->s_vfs_rename_sem);
+ mutex_unlock(&file->f_dentry->d_sb->s_vfs_rename_mutex);
if(full_path == NULL) {
return -ENOMEM;
diff --git a/fs/cifs/xattr.c b/fs/cifs/xattr.c
index 777e336..3938444 100644
--- a/fs/cifs/xattr.c
+++ b/fs/cifs/xattr.c
@@ -62,9 +62,9 @@
cifs_sb = CIFS_SB(sb);
pTcon = cifs_sb->tcon;
- down(&sb->s_vfs_rename_sem);
+ mutex_lock(&sb->s_vfs_rename_mutex);
full_path = build_path_from_dentry(direntry);
- up(&sb->s_vfs_rename_sem);
+ mutex_unlock(&sb->s_vfs_rename_mutex);
if(full_path == NULL) {
FreeXid(xid);
return -ENOMEM;
@@ -116,9 +116,9 @@
cifs_sb = CIFS_SB(sb);
pTcon = cifs_sb->tcon;
- down(&sb->s_vfs_rename_sem);
+ mutex_lock(&sb->s_vfs_rename_mutex);
full_path = build_path_from_dentry(direntry);
- up(&sb->s_vfs_rename_sem);
+ mutex_unlock(&sb->s_vfs_rename_mutex);
if(full_path == NULL) {
FreeXid(xid);
return -ENOMEM;
@@ -223,9 +223,9 @@
cifs_sb = CIFS_SB(sb);
pTcon = cifs_sb->tcon;
- down(&sb->s_vfs_rename_sem);
+ mutex_lock(&sb->s_vfs_rename_mutex);
full_path = build_path_from_dentry(direntry);
- up(&sb->s_vfs_rename_sem);
+ mutex_unlock(&sb->s_vfs_rename_mutex);
if(full_path == NULL) {
FreeXid(xid);
return -ENOMEM;
@@ -341,9 +341,9 @@
cifs_sb = CIFS_SB(sb);
pTcon = cifs_sb->tcon;
- down(&sb->s_vfs_rename_sem);
+ mutex_lock(&sb->s_vfs_rename_mutex);
full_path = build_path_from_dentry(direntry);
- up(&sb->s_vfs_rename_sem);
+ mutex_unlock(&sb->s_vfs_rename_mutex);
if(full_path == NULL) {
FreeXid(xid);
return -ENOMEM;
diff --git a/fs/namei.c b/fs/namei.c
index 8dc2b03..c72b940 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -104,7 +104,7 @@
*/
/*
* [Sep 2001 AV] Single-semaphore locking scheme (kudos to David Holland)
- * implemented. Let's see if raised priority of ->s_vfs_rename_sem gives
+ * implemented. Let's see if raised priority of ->s_vfs_rename_mutex gives
* any extra contention...
*/
@@ -1422,7 +1422,7 @@
return NULL;
}
- down(&p1->d_inode->i_sb->s_vfs_rename_sem);
+ mutex_lock(&p1->d_inode->i_sb->s_vfs_rename_mutex);
for (p = p1; p->d_parent != p; p = p->d_parent) {
if (p->d_parent == p2) {
@@ -1450,7 +1450,7 @@
mutex_unlock(&p1->d_inode->i_mutex);
if (p1 != p2) {
mutex_unlock(&p2->d_inode->i_mutex);
- up(&p1->d_inode->i_sb->s_vfs_rename_sem);
+ mutex_unlock(&p1->d_inode->i_sb->s_vfs_rename_mutex);
}
}
@@ -2277,17 +2277,17 @@
* a) we can get into loop creation. Check is done in is_subdir().
* b) race potential - two innocent renames can create a loop together.
* That's where 4.4 screws up. Current fix: serialization on
- * sb->s_vfs_rename_sem. We might be more accurate, but that's another
+ * sb->s_vfs_rename_mutex. We might be more accurate, but that's another
* story.
* c) we have to lock _three_ objects - parents and victim (if it exists).
* And that - after we got ->i_mutex on parents (until then we don't know
* whether the target exists). Solution: try to be smart with locking
* order for inodes. We rely on the fact that tree topology may change
- * only under ->s_vfs_rename_sem _and_ that parent of the object we
+ * only under ->s_vfs_rename_mutex _and_ that parent of the object we
* move will be locked. Thus we can rank directories by the tree
* (ancestors first) and rank all non-directories after them.
* That works since everybody except rename does "lock parent, lookup,
- * lock child" and rename is under ->s_vfs_rename_sem.
+ * lock child" and rename is under ->s_vfs_rename_mutex.
* HOWEVER, it relies on the assumption that any object with ->lookup()
* has no more than 1 dentry. If "hybrid" objects will ever appear,
* we'd better make sure that there's no link(2) for them.
diff --git a/fs/super.c b/fs/super.c
index 9cc6545..425861c 100644
--- a/fs/super.c
+++ b/fs/super.c
@@ -76,7 +76,7 @@
down_write(&s->s_umount);
s->s_count = S_BIAS;
atomic_set(&s->s_active, 1);
- sema_init(&s->s_vfs_rename_sem,1);
+ mutex_init(&s->s_vfs_rename_mutex);
mutex_init(&s->s_dquot.dqio_mutex);
mutex_init(&s->s_dquot.dqonoff_mutex);
init_rwsem(&s->s_dquot.dqptr_sem);