[PATCHSET pm-freezer] freezer: fixes & simplifications

From: Tejun Heo
Date: Fri Sep 02 2011 - 14:29:35 EST


Hello,

These six patches are fixes and simplifications for the recent freezer
changes. The first four have been posted twice. Changes since the
last posting[L] are

* freezer->state setting bug fix updated per Matt Helsley so that the
actual per-task freeze/thaw operations are always performed.

* fixed a bug caused by forgetting to unlock freezer_lock in "freezer:
restructure __refrigerator()".

* Two patches added. The fifth one is mostly trivial. The sixth a
bit more involved but still shouldn't cause any noticeable
functional difference. This removes the buggy and unused
freezable_with_signal.

Properly tested this time. As hera is still down, no git branch
available at this point. Patch list and diffstat follow.

Thanks.

[PATCH 1/6] cgroup_freezer: fix freezer->state setting bug in
[PATCH 2/6] freezer: set PF_NOFREEZE on a dying task right before
[PATCH 3/6] freezer: restructure __refrigerator()
[PATCH 4/6] freezer: use lock_task_sighand() in
[PATCH 5/6] freezer: remove unused @sig_only from freeze_task()
[PATCH 6/6] freezer: kill unused set_freezable_with_signal()

include/linux/freezer.h | 22 +------------
include/linux/sched.h | 1
kernel/cgroup_freezer.c | 18 +++++------
kernel/exit.c | 10 ++----
kernel/freezer.c | 78 ++++++++++++++++--------------------------------
kernel/kthread.c | 2 -
kernel/power/process.c | 8 ++--
7 files changed, 47 insertions(+), 92 deletions(-)

--
tejun

[L] http://thread.gmane.org/gmane.linux.kernel/1186387
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