Re: [PATCH rc4-mm2 2/2] posix-timers: use try_to_del_timer_sync()

From: George Anzinger
Date: Mon May 23 2005 - 20:02:07 EST


Andrew Morton wrote:
George Anzinger <george@xxxxxxxxxx> wrote:

Oleg Nesterov wrote:

sys_timer_settime/sys_timer_delete needs to delete k_itimer->real.timer
synchronously while holding ->it_lock, which is also locked in posix_timer_fn.

This patch removes timer_active/set_timer_inactive which plays with
timer_list's internals in favour of using try_to_del_timer_sync(),
which was introduced in the previous patch.

Is there a particular reason for this, like it does not work, for example, or are you just trying to clean up code?


The posix-timers code is poking about in the internals of the timer_list
implementation. It shouldn't, and finding some way to fix that up is
desirable.

I see, and agree. Could you give me a bit to work on this. I would like to come up with something that is compatable with the HRT patch. At this time I am waiting for John Stultz's time keeping changes to get in before pushing HRT, but I would still like it to get it into the kernel.



--
George Anzinger george@xxxxxxxxxx
High-res-timers: http://sourceforge.net/projects/high-res-timers/
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