fat: drop lock/unlock super

Removed lock/unlock super. Added a new private s_lock mutex.

Signed-off-by: Marco Stornelli <marco.stornelli@gmail.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

1 files changed, 2 insertions, 2 deletions

diff --git a/fs/fat/dir.c b/fs/fat/dir.c
index bca6d0a1255e..2a182342442e 100644
--- a/fs/fat/dir.c
+++ b/fs/fat/dir.c
@@ -571,7 +571,7 @@ static int __fat_readdir(struct inode *inode, struct file *filp, void *dirent,
         int short_len = 0, fill_len = 0;
         int ret = 0;
 
-        lock_super(sb);
+        mutex_lock(&sbi->s_lock);
 
         cpos = filp->f_pos;
         /* Fake . and .. for the root directory. */
@@ -693,7 +693,7 @@ fill_failed:
         if (unicode)
                 __putname(unicode);
 out:
-        unlock_super(sb);
+        mutex_unlock(&sbi->s_lock);
         return ret;
 }