[PATCH] fix reiserfs lock inversion of bkl vs inode semaphore
The correct lock ordering is inode lock -> BKL
Signed-off-by: Chris Mason <mason@suse.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/fs/reiserfs/ioctl.c b/fs/reiserfs/ioctl.c
index 745c881..a986b5e 100644
--- a/fs/reiserfs/ioctl.c
+++ b/fs/reiserfs/ioctl.c
@@ -116,12 +116,12 @@
if (REISERFS_I(inode)->i_flags & i_nopack_mask) {
return 0;
}
- reiserfs_write_lock(inode->i_sb);
/* we need to make sure nobody is changing the file size beneath
** us
*/
mutex_lock(&inode->i_mutex);
+ reiserfs_write_lock(inode->i_sb);
write_from = inode->i_size & (blocksize - 1);
/* if we are on a block boundary, we are already unpacked. */