VFS: Don't use save/replace_mount_options if not using generic_show_options
authorDavid Howells <dhowells@redhat.com>
Wed, 5 Jul 2017 15:24:09 +0000 (16:24 +0100)
committerAl Viro <viro@zeniv.linux.org.uk>
Thu, 6 Jul 2017 07:31:46 +0000 (03:31 -0400)
commitc3d98ea08291ca26144780f601e1fd39e4f20f7e
treed90c98ef4e026262d799657e8c765e0411bf67c0
parentcdf01226b26e98c79c13b335fbe0cbbbe850cf44
VFS: Don't use save/replace_mount_options if not using generic_show_options

btrfs, debugfs, reiserfs and tracefs call save_mount_options() and reiserfs
calls replace_mount_options(), but they then implement their own
->show_options() methods and don't touch s_options, rendering the saved
options unnecessary.  I'm trying to eliminate s_options to make it easier
to implement a context-based mount where the mount options can be passed
individually over a file descriptor.

Remove the calls to save/replace_mount_options() call in these cases.

Signed-off-by: David Howells <dhowells@redhat.com>
cc: Chris Mason <clm@fb.com>
cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
cc: Steven Rostedt <rostedt@goodmis.org>
cc: linux-btrfs@vger.kernel.org
cc: reiserfs-devel@vger.kernel.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
fs/btrfs/super.c
fs/debugfs/inode.c
fs/reiserfs/super.c
fs/tracefs/inode.c