linux/fs/cachefiles
Christoph Hellwig 5af7926ff3 enforce ->sync_fs is only called for rw superblock
Make sure a superblock really is writeable by checking MS_RDONLY
under s_umount.  sync_filesystems needed some re-arragement for
that, but all but one sync_filesystem caller had the correct locking
already so that we could add that check there.  cachefiles grew
s_umount locking.

I've also added a WARN_ON to sync_filesystem to assert this for
future callers.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2009-06-11 21:36:06 -04:00
..
Kconfig
Makefile
bind.c
daemon.c
interface.c enforce ->sync_fs is only called for rw superblock 2009-06-11 21:36:06 -04:00
internal.h
key.c
main.c
namei.c
proc.c
rdwr.c
security.c
xattr.c