[PATCH] r/o bind mounts: monitor zeroing of i_nlink
Some filesystems, instead of simply decrementing i_nlink, simply zero it
during an unlink operation. We need to catch these in addition to the
decrement operations.
Signed-off-by: Dave Hansen <haveblue@us.ibm.com>
Acked-by: Christoph Hellwig <hch@lst.de>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/fs/msdos/namei.c b/fs/msdos/namei.c
index fa868c7..b0f01b3 100644
--- a/fs/msdos/namei.c
+++ b/fs/msdos/namei.c
@@ -345,7 +345,7 @@
goto out;
drop_nlink(dir);
- inode->i_nlink = 0;
+ clear_nlink(inode);
inode->i_ctime = CURRENT_TIME_SEC;
fat_detach(inode);
out:
@@ -430,7 +430,7 @@
err = fat_remove_entries(dir, &sinfo); /* and releases bh */
if (err)
goto out;
- inode->i_nlink = 0;
+ clear_nlink(inode);
inode->i_ctime = CURRENT_TIME_SEC;
fat_detach(inode);
out: