diff options
author | Oleg Nesterov <oleg@redhat.com> | 2009-09-05 11:17:06 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-09-05 11:30:42 -0700 |
commit | 4e49627b9bc29a14b393c480e8c979e3bc922ef7 (patch) | |
tree | 209b69da65abbbffb7abeaea60f17d46f38485fe /mm | |
parent | 37d0892c5a94e208cf863e3b7bac014edee4346d (diff) |
workqueues: introduce __cancel_delayed_work()
cancel_delayed_work() has to use del_timer_sync() to guarantee the timer
function is not running after return. But most users doesn't actually
need this, and del_timer_sync() has problems: it is not useable from
interrupt, and it depends on every lock which could be taken from irq.
Introduce __cancel_delayed_work() which calls del_timer() instead.
The immediate reason for this patch is
http://bugzilla.kernel.org/show_bug.cgi?id=13757
but hopefully this helper makes sense anyway.
As for 13757 bug, actually we need requeue_delayed_work(), but its
semantics are not yet clear.
Merge this patch early to resolves cross-tree interdependencies between
input and infiniband.
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: Roland Dreier <rdreier@cisco.com>
Cc: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
0 files changed, 0 insertions, 0 deletions