CIFS: Fix VFS lock usage for oplocked files

[pandora-kernel.git] / fs / cifs / file.c

diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index 159fcc5..0f7dc22 100644 (file)
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -835,13 +835,21 @@ cifs_posix_lock_set(struct file *file, struct file_lock *flock)
        if ((flock->fl_flags & FL_POSIX) == 0)
                return rc;
 
+try_again:
        mutex_lock(&cinode->lock_mutex);
        if (!cinode->can_cache_brlcks) {
                mutex_unlock(&cinode->lock_mutex);
                return rc;
        }
-       rc = posix_lock_file_wait(file, flock);
+
+       rc = posix_lock_file(file, flock, NULL);
        mutex_unlock(&cinode->lock_mutex);
+       if (rc == FILE_LOCK_DEFERRED) {
+               rc = wait_event_interruptible(flock->fl_wait, !flock->fl_next);
+               if (!rc)
+                       goto try_again;
+               locks_delete_block(flock);
+       }
        return rc;
 }