linux/fs/9p
Jeff Layton f7e33bdbd6 fs: remove mandatory file locking support
We added CONFIG_MANDATORY_FILE_LOCKING in 2015, and soon after turned it
off in Fedora and RHEL8. Several other distros have followed suit.

I've heard of one problem in all that time: Someone migrated from an
older distro that supported "-o mand" to one that didn't, and the host
had a fstab entry with "mand" in it which broke on reboot. They didn't
actually _use_ mandatory locking so they just removed the mount option
and moved on.

This patch rips out mandatory locking support wholesale from the kernel,
along with the Kconfig option and the Documentation file. It also
changes the mount code to ignore the "mand" mount option instead of
erroring out, and to throw a big, ugly warning.

Signed-off-by: Jeff Layton <jlayton@kernel.org>
2021-08-23 06:15:36 -04:00
..
acl.c fs: make helpers idmap mount aware 2021-01-24 14:27:20 +01:00
acl.h 9p: switch v9fs_set_create_acl() to inode+fid, do it before d_instantiate() 2013-02-26 02:46:07 -05:00
cache.c 9p/cache.c: Fix memory leak in v9fs_cache_session_get_cookie 2019-09-03 11:07:39 +00:00
cache.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 188 2019-05-30 11:29:21 -07:00
fid.c 9p: Remove unnecessary IS_ERR() check 2020-12-01 08:19:02 +01:00
fid.h 9p: apply review requests for fid refcounting 2020-11-19 17:21:34 +01:00
Kconfig 9p: Fix Kconfig indentation 2020-03-27 09:29:56 +00:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
v9fs_vfs.h fs: make helpers idmap mount aware 2021-01-24 14:27:20 +01:00
v9fs.c 9p: Constify static struct v9fs_attr_group 2021-03-31 07:02:46 +09:00
v9fs.h fs: make helpers idmap mount aware 2021-01-24 14:27:20 +01:00
vfs_addr.c 9p: pass the correct prototype to read_cache_page 2019-07-12 11:05:43 -07:00
vfs_dentry.c 9p: add refcount to p9_fid struct 2020-11-19 17:20:39 +01:00
vfs_dir.c 9p: add refcount to p9_fid struct 2020-11-19 17:20:39 +01:00
vfs_file.c fs: remove mandatory file locking support 2021-08-23 06:15:36 -04:00
vfs_inode_dotl.c 9p: missing chunk of "fs/9p: Don't update file type when updating file attributes" 2021-03-12 22:15:22 -05:00
vfs_inode.c new helper: inode_wrong_type() 2021-03-08 10:19:35 -05:00
vfs_super.c 9p: add refcount to p9_fid struct 2020-11-19 17:20:39 +01:00
xattr.c acl: handle idmapped mounts 2021-01-24 14:27:17 +01:00
xattr.h 9p: xattr simplifications 2015-11-13 20:34:33 -05:00