linux/fs/notify
Eric Paris 7c5347733d fanotify: disable fanotify syscalls
This patch disables the fanotify syscalls by just not building them and
letting the cond_syscall() statements in kernel/sys_ni.c redirect them
to sys_ni_syscall().

It was pointed out by Tvrtko Ursulin that the fanotify interface did not
include an explicit prioritization between groups.  This is necessary
for fanotify to be usable for hierarchical storage management software,
as they must get first access to the file, before inotify-like notifiers
see the file.

This feature can be added in an ABI compatible way in the next release
(by using a number of bits in the flags field to carry the info) but it
was suggested by Alan that maybe we should just hold off and do it in
the next cycle, likely with an (new) explicit argument to the syscall.
I don't like this approach best as I know people are already starting to
use the current interface, but Alan is all wise and noone on list backed
me up with just using what we have.  I feel this is needlessly ripping
the rug out from under people at the last minute, but if others think it
needs to be a new argument it might be the best way forward.

Three choices:
Go with what we got (and implement the new feature next cycle).  Add a
new field right now (and implement the new feature next cycle).  Wait
till next cycle to release the ABI (and implement the new feature next
cycle).  This is number 3.

Signed-off-by: Eric Paris <eparis@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-10-11 18:15:28 -07:00
..
dnotify fanotify: use both marks when possible 2010-07-28 10:18:55 -04:00
fanotify fanotify: Return EPERM when a process is not privileged 2010-08-27 19:59:42 -04:00
inotify Revert "fsnotify: store struct file not struct path" 2010-08-12 14:23:04 -07:00
Kconfig fanotify: disable fanotify syscalls 2010-10-11 18:15:28 -07:00
Makefile fsnotify: vfsmount marks generic functions 2010-07-28 09:58:57 -04:00
fsnotify.c fsnotify: drop two useless bools in the fnsotify main loop 2010-08-27 21:42:11 -04:00
fsnotify.h fsnotify: remove global fsnotify groups lists 2010-07-28 10:18:54 -04:00
group.c fsnotify: remove global fsnotify groups lists 2010-07-28 10:18:54 -04:00
inode_mark.c Merge branch 'for-linus' of git://git.infradead.org/users/eparis/notify 2010-08-10 11:39:13 -07:00
mark.c fsnotify: remove global fsnotify groups lists 2010-07-28 10:18:54 -04:00
notification.c Revert "fsnotify: store struct file not struct path" 2010-08-12 14:23:04 -07:00
vfsmount_mark.c fsnotify: use an explicit flag to indicate fsnotify_destroy_mark has been called 2010-07-28 10:18:52 -04:00