file_update_time() should be called with i_mutex held,
move it before mutex_unlock().
Signed-off-by: WANG Cong <amwang@xxxxxxxxxx>
Cc: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
Cc: Heiko Carstens <heiko.carstens@xxxxxxxxxx>
Cc: Miklos Szeredi <mszeredi@xxxxxxx>
---
diff --git a/fs/pipe.c b/fs/pipe.c
index f7dd21a..724b035 100644
--- a/fs/pipe.c
+++ b/fs/pipe.c
@@ -602,13 +602,14 @@ redo2:
pipe->waiting_writers--;
}
out:
+ if (ret > 0)
+ file_update_time(filp);
+
mutex_unlock(&inode->i_mutex);
if (do_wakeup) {
wake_up_interruptible_sync(&pipe->wait);
kill_fasync(&pipe->fasync_readers, SIGIO, POLL_IN);
}
- if (ret > 0)
- file_update_time(filp);
return ret;
}
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