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CIFS: Fix the VFS brlock cache usage in posix locking case 

Request to the cache in FL_POSIX case only.

Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru>
Signed-off-by: Steve French <smfrench@gmail.com>
This commit is contained in:
Pavel Shilovsky 2011-10-29 17:17:57 +04:00 committed by Steve French
parent 8ea00c6977
commit 5079276066
1 changed files with 8 additions and 2 deletions
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10
fs/cifs/file.c
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@ -793,6 +793,9 @@ cifs_posix_lock_test(struct file *file, struct file_lock *flock)
struct cifsInodeInfo *cinode = CIFS_I(file->f_path.dentry->d_inode);
unsigned char saved_type = flock->fl_type;
if ((flock->fl_flags & FL_POSIX) == 0)
return 1;
mutex_lock(&cinode->lock_mutex);
posix_test_lock(file, flock);
@ -809,12 +812,15 @@ static int
cifs_posix_lock_set(struct file *file, struct file_lock *flock)
{
struct cifsInodeInfo *cinode = CIFS_I(file->f_path.dentry->d_inode);
int rc;
int rc = 1;
if ((flock->fl_flags & FL_POSIX) == 0)
return rc;
mutex_lock(&cinode->lock_mutex);
if (!cinode->can_cache_brlcks) {
mutex_unlock(&cinode->lock_mutex);
return 1;
return rc;
}
rc = posix_lock_file_wait(file, flock);
mutex_unlock(&cinode->lock_mutex);