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authorSteve French <sfrench@us.ibm.com>2006-04-21 18:17:42 +0000
committerSteve French <sfrench@us.ibm.com>2006-04-21 18:17:42 +0000
commit0bd4fa977f81c914eb8bada00284d0933825900e (patch)
tree398b2fea4b7902f53be9d0fc9d9c9c07d427dce1 /fs
parentf4ffaa452e71495a06376f12f772342bc57051fc (diff)
[CIFS] [CIFS] Do not take rename sem on most path based calls (during
building of full path) to avoid hang rename/readdir hang Reported by Alan Tyson Signed-off-by: Steve French <sfrench@us.ibm.com>
Diffstat (limited to 'fs')
-rw-r--r--fs/cifs/dir.c4
-rw-r--r--fs/cifs/fcntl.c2
-rw-r--r--fs/cifs/file.c2
-rw-r--r--fs/cifs/inode.c6
-rw-r--r--fs/cifs/link.c6
-rw-r--r--fs/cifs/readdir.c2
-rw-r--r--fs/cifs/xattr.c8
7 files changed, 0 insertions, 30 deletions
diff --git a/fs/cifs/dir.c b/fs/cifs/dir.c
index 1d0ca3eaaca..3830dfeb31c 100644
--- a/fs/cifs/dir.c
+++ b/fs/cifs/dir.c
@@ -139,9 +139,7 @@ cifs_create(struct inode *inode, struct dentry *direntry, int mode,
cifs_sb = CIFS_SB(inode->i_sb);
pTcon = cifs_sb->tcon;
- mutex_lock(&direntry->d_sb->s_vfs_rename_mutex);
full_path = build_path_from_dentry(direntry);
- mutex_unlock(&direntry->d_sb->s_vfs_rename_mutex);
if(full_path == NULL) {
FreeXid(xid);
return -ENOMEM;
@@ -316,9 +314,7 @@ int cifs_mknod(struct inode *inode, struct dentry *direntry, int mode,
cifs_sb = CIFS_SB(inode->i_sb);
pTcon = cifs_sb->tcon;
- mutex_lock(&direntry->d_sb->s_vfs_rename_mutex);
full_path = build_path_from_dentry(direntry);
- 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 ec4dfe9bf5e..633a9381132 100644
--- a/fs/cifs/fcntl.c
+++ b/fs/cifs/fcntl.c
@@ -86,9 +86,7 @@ int cifs_dir_notify(struct file * file, unsigned long arg)
cifs_sb = CIFS_SB(file->f_dentry->d_sb);
pTcon = cifs_sb->tcon;
- mutex_lock(&file->f_dentry->d_sb->s_vfs_rename_mutex);
full_path = build_path_from_dentry(file->f_dentry);
- 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 5c497c52977..1476725e605 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -203,9 +203,7 @@ int cifs_open(struct inode *inode, struct file *file)
}
}
- mutex_lock(&inode->i_sb->s_vfs_rename_mutex);
full_path = build_path_from_dentry(file->f_dentry);
- 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 957ddd1571c..4093764ef46 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -722,9 +722,7 @@ int cifs_mkdir(struct inode *inode, struct dentry *direntry, int mode)
cifs_sb = CIFS_SB(inode->i_sb);
pTcon = cifs_sb->tcon;
- mutex_lock(&inode->i_sb->s_vfs_rename_mutex);
full_path = build_path_from_dentry(direntry);
- mutex_unlock(&inode->i_sb->s_vfs_rename_mutex);
if (full_path == NULL) {
FreeXid(xid);
return -ENOMEM;
@@ -807,9 +805,7 @@ int cifs_rmdir(struct inode *inode, struct dentry *direntry)
cifs_sb = CIFS_SB(inode->i_sb);
pTcon = cifs_sb->tcon;
- mutex_lock(&inode->i_sb->s_vfs_rename_mutex);
full_path = build_path_from_dentry(direntry);
- mutex_unlock(&inode->i_sb->s_vfs_rename_mutex);
if (full_path == NULL) {
FreeXid(xid);
return -ENOMEM;
@@ -1141,9 +1137,7 @@ int cifs_setattr(struct dentry *direntry, struct iattr *attrs)
rc = 0;
}
- mutex_lock(&direntry->d_sb->s_vfs_rename_mutex);
full_path = build_path_from_dentry(direntry);
- 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 9562f5bba65..2ec99f83314 100644
--- a/fs/cifs/link.c
+++ b/fs/cifs/link.c
@@ -48,10 +48,8 @@ cifs_hardlink(struct dentry *old_file, struct inode *inode,
/* 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) */
- mutex_lock(&inode->i_sb->s_vfs_rename_mutex);
fromName = build_path_from_dentry(old_file);
toName = build_path_from_dentry(direntry);
- mutex_unlock(&inode->i_sb->s_vfs_rename_mutex);
if((fromName == NULL) || (toName == NULL)) {
rc = -ENOMEM;
goto cifs_hl_exit;
@@ -103,9 +101,7 @@ cifs_follow_link(struct dentry *direntry, struct nameidata *nd)
xid = GetXid();
- mutex_lock(&direntry->d_sb->s_vfs_rename_mutex);
full_path = build_path_from_dentry(direntry);
- mutex_unlock(&direntry->d_sb->s_vfs_rename_mutex);
if (!full_path)
goto out_no_free;
@@ -164,9 +160,7 @@ cifs_symlink(struct inode *inode, struct dentry *direntry, const char *symname)
cifs_sb = CIFS_SB(inode->i_sb);
pTcon = cifs_sb->tcon;
- mutex_lock(&inode->i_sb->s_vfs_rename_mutex);
full_path = build_path_from_dentry(direntry);
- 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 2f6e2825571..7b8591acc5a 100644
--- a/fs/cifs/readdir.c
+++ b/fs/cifs/readdir.c
@@ -404,9 +404,7 @@ static int initiate_cifs_search(const int xid, struct file *file)
if(pTcon == NULL)
return -EINVAL;
- mutex_lock(&file->f_dentry->d_sb->s_vfs_rename_mutex);
full_path = build_path_from_dentry(file->f_dentry);
- 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 3938444d87b..7754d641775 100644
--- a/fs/cifs/xattr.c
+++ b/fs/cifs/xattr.c
@@ -62,9 +62,7 @@ int cifs_removexattr(struct dentry * direntry, const char * ea_name)
cifs_sb = CIFS_SB(sb);
pTcon = cifs_sb->tcon;
- mutex_lock(&sb->s_vfs_rename_mutex);
full_path = build_path_from_dentry(direntry);
- mutex_unlock(&sb->s_vfs_rename_mutex);
if(full_path == NULL) {
FreeXid(xid);
return -ENOMEM;
@@ -116,9 +114,7 @@ int cifs_setxattr(struct dentry * direntry, const char * ea_name,
cifs_sb = CIFS_SB(sb);
pTcon = cifs_sb->tcon;
- mutex_lock(&sb->s_vfs_rename_mutex);
full_path = build_path_from_dentry(direntry);
- mutex_unlock(&sb->s_vfs_rename_mutex);
if(full_path == NULL) {
FreeXid(xid);
return -ENOMEM;
@@ -223,9 +219,7 @@ ssize_t cifs_getxattr(struct dentry * direntry, const char * ea_name,
cifs_sb = CIFS_SB(sb);
pTcon = cifs_sb->tcon;
- mutex_lock(&sb->s_vfs_rename_mutex);
full_path = build_path_from_dentry(direntry);
- mutex_unlock(&sb->s_vfs_rename_mutex);
if(full_path == NULL) {
FreeXid(xid);
return -ENOMEM;
@@ -341,9 +335,7 @@ ssize_t cifs_listxattr(struct dentry * direntry, char * data, size_t buf_size)
cifs_sb = CIFS_SB(sb);
pTcon = cifs_sb->tcon;
- mutex_lock(&sb->s_vfs_rename_mutex);
full_path = build_path_from_dentry(direntry);
- mutex_unlock(&sb->s_vfs_rename_mutex);
if(full_path == NULL) {
FreeXid(xid);
return -ENOMEM;