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| author | Marcos Paulo de Souza <marcos.mage@gmail.com> | 2012-02-22 02:57:47 +0400 |
|---|---|---|
| committer | Rafael J. Wysocki <rjw@sisk.pl> | 2012-03-05 02:08:54 +0400 |
| commit | 37f08be11be9a7d9351fb1b9b408259519a126f3 (patch) | |
| tree | 7edf402614ae9f36a6e9226b380072cec969c847 /kernel/power | |
| parent | 8671bbc1bd0442ef0eab27f7d56216431c490820 (diff) | |
| download | linux-37f08be11be9a7d9351fb1b9b408259519a126f3.tar.xz | |
PM / Freezer: Remove references to TIF_FREEZE in comments
This patch removes all the references in the code about the TIF_FREEZE
flag removed by commit a3201227f803ad7fd43180c5195dbe5a2bf998aa
freezer: make freezing() test freeze conditions in effect instead of TIF_FREEZE
There still are some references to TIF_FREEZE in
Documentation/power/freezing-of-tasks.txt, but it looks like that
documentation needs more thorough work to reflect how the new
freezer works, and hence merely removing the references to TIF_FREEZE
won't really help. So I have not touched that part in this patch.
Suggested-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Signed-off-by: Marcos Paulo de Souza <marcos.mage@gmail.com>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Diffstat (limited to 'kernel/power')
| -rw-r--r-- | kernel/power/process.c | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/kernel/power/process.c b/kernel/power/process.c index 6aeb5efe00eb..0d2aeb226108 100644 --- a/kernel/power/process.c +++ b/kernel/power/process.c @@ -53,11 +53,9 @@ static int try_to_freeze_tasks(bool user_only) * It is "frozen enough". If the task does wake * up, it will immediately call try_to_freeze. * - * Because freeze_task() goes through p's - * scheduler lock after setting TIF_FREEZE, it's - * guaranteed that either we see TASK_RUNNING or - * try_to_stop() after schedule() in ptrace/signal - * stop sees TIF_FREEZE. + * Because freeze_task() goes through p's scheduler lock, it's + * guaranteed that TASK_STOPPED/TRACED -> TASK_RUNNING + * transition can't race with task state testing here. */ if (!task_is_stopped_or_traced(p) && !freezer_should_skip(p)) |