Eric Biggers ba63f23d69 fscrypto: require write access to mount to set encryption policy ... Since setting an encryption policy requires writing metadata to the filesystem, it should be guarded by mnt_want_write/mnt_drop_write. Otherwise, a user could cause a write to a frozen or readonly filesystem. This was handled correctly by f2fs but not by ext4. Make fscrypt_process_policy() handle it rather than relying on the filesystem to get it right. Signed-off-by: Eric Biggers <ebiggers@google.com> Cc: stable@vger.kernel.org # 4.1+; check fs/{ext4,f2fs} Signed-off-by: Theodore Ts'o <tytso@mit.edu> Acked-by: Jaegeuk Kim <jaegeuk@kernel.org>		2016-09-10 01:18:57 -04:00
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Kconfig	f2fs: add mount option to select fault injection ratio	2016-05-07 10:32:22 -07:00
Makefile	fs crypto: move per-file encryption from f2fs tree to fs/crypto	2016-03-17 21:19:33 -07:00
acl.c	f2fs: avoid mark_inode_dirty	2016-07-08 10:34:09 -07:00
acl.h	f2fs: clean up coding style and redundancy	2016-07-25 12:58:12 -07:00
checkpoint.c	The major change in this version is mitigating cpu overheads on write paths by	2016-07-27 10:36:31 -07:00
data.c	Revert "f2fs: move i_size_write in f2fs_write_end"	2016-08-19 11:15:08 +09:00
debug.c	f2fs: flush inode metadata when checkpoint is doing	2016-06-02 18:05:11 -07:00
dir.c	Merge branch 'work.const-qstr' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-08-06 09:49:02 -04:00
extent_cache.c	f2fs: disable extent_cache for fcollapse/finsert inodes	2016-07-15 15:21:20 -07:00
f2fs.h	Revert "f2fs: use percpu_rw_semaphore"	2016-08-19 11:15:08 +09:00
file.c	fscrypto: require write access to mount to set encryption policy	2016-09-10 01:18:57 -04:00
gc.c	The major change in this version is mitigating cpu overheads on write paths by	2016-07-27 10:36:31 -07:00
gc.h	f2fs: detect idle time depending on user behavior	2016-01-11 15:56:37 -08:00
hash.c	f2fs: introduce dot and dotdot name check	2015-05-28 15:41:34 -07:00
inline.c	The major change in this version is mitigating cpu overheads on write paths by	2016-07-27 10:36:31 -07:00
inode.c	f2fs: avoid mark_inode_dirty	2016-07-08 10:34:09 -07:00
namei.c	f2fs: fix to report error number of f2fs_find_entry	2016-07-20 14:53:19 -07:00
node.c	Revert "f2fs: use percpu_rw_semaphore"	2016-08-19 11:15:08 +09:00
node.h	f2fs: produce more nids and reduce readahead nats	2016-07-06 10:44:08 -07:00
recovery.c	f2fs: handle error case with f2fs_bug_on	2016-07-20 14:53:22 -07:00
segment.c	The major change in this version is mitigating cpu overheads on write paths by	2016-07-27 10:36:31 -07:00
segment.h	f2fs: add maximum prefree segments	2016-07-15 15:21:21 -07:00
shrinker.c	f2fs: produce more nids and reduce readahead nats	2016-07-06 10:44:08 -07:00
super.c	Revert "f2fs: use percpu_rw_semaphore"	2016-08-19 11:15:08 +09:00
trace.c	f2fs: use bio op accessors	2016-06-07 13:41:38 -06:00
trace.h	f2fs: add sbi and page pointer in f2fs_io_info	2015-05-28 15:41:32 -07:00
xattr.c	f2fs: avoid mark_inode_dirty	2016-07-08 10:34:09 -07:00
xattr.h	f2fs: add missing argument to f2fs_setxattr stub	2016-03-17 21:19:47 -07:00