Re: [PATCH 4/3] thread_group_cputime: move a couple of callsitesoutside of ->siglock

From: Ingo Molnar
Date: Mon Nov 17 2008 - 10:57:46 EST



* Oleg Nesterov <oleg@xxxxxxxxxx> wrote:

> ->siglock buys nothing for thread_group_cputime() in do_sys_times() and
> wait_task_zombie() (which btw takes the unrelated parent's ->siglock).
> Actually I think do_sys_times() doesn't need ->siglock at all.
>
> Signed-off-by: Oleg Nesterov <oleg@xxxxxxxxxx>

applied your changes to tip/core/signal:

2b5fe6d: thread_group_cputime: move a couple of callsites outside of ->siglock
ce39447: thread_group_cputime: kill the bogus ->signal != NULL check
74fcd52: account_steal_time: kill the unneeded account_group_system_time()

(merged the sched/urgent fixlet before them)

thanks Oleg!

Ingo
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