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author | Tejun Heo <tj@kernel.org> | 2012-08-03 21:30:47 +0400 |
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committer | Tejun Heo <tj@kernel.org> | 2012-08-03 21:30:47 +0400 |
commit | 8376fe22c7e79c7e90857d39f82aeae6cad6c4b8 (patch) | |
tree | 3a77fda11324a25abfe1ffe3ea0eba28a4fac03f /net/rfkill | |
parent | bbb68dfaba73e8338fe0f1dc711cc1d261daec87 (diff) | |
download | linux-8376fe22c7e79c7e90857d39f82aeae6cad6c4b8.tar.xz |
workqueue: implement mod_delayed_work[_on]()
Workqueue was lacking a mechanism to modify the timeout of an already
pending delayed_work. delayed_work users have been working around
this using several methods - using an explicit timer + work item,
messing directly with delayed_work->timer, and canceling before
re-queueing, all of which are error-prone and/or ugly.
This patch implements mod_delayed_work[_on]() which behaves similarly
to mod_timer() - if the delayed_work is idle, it's queued with the
given delay; otherwise, its timeout is modified to the new value.
Zero @delay guarantees immediate execution.
v2: Updated to reflect try_to_grab_pending() changes. Now safe to be
called from bh context.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Ingo Molnar <mingo@redhat.com>
Diffstat (limited to 'net/rfkill')
0 files changed, 0 insertions, 0 deletions