linux-kernel - [RFC PATCH 0/3] timer: patchset focus on del_timer

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Message-Id: <1282633129-9187-1-git-send-email-yong.zhang0@gmail.com>
Date:	Tue, 24 Aug 2010 14:58:46 +0800
From:	Yong Zhang <yong.zhang0@...il.com>
To:	linux-kernel@...r.kernel.org
Cc:	tglx@...utronix.de, akpm@...ux-foundation.org, mingo@...e.hu,
	peterz@...radead.org, oleg@...hat.com
Subject: [RFC PATCH 0/3] timer: patchset focus on del_timer_sync()

From: Yong Zhang <yong.zhang@...driver.com>

This is inspired by http://lkml.org/lkml/2010/8/16/291
which catch a lockdep false positive on fake_timer_lock.
When I go into del_timer_sync(), but don't find anything
which prevent del_timer_sync() from using in softirq context,
and indeed it's been used in softirq for some timer(such as
__dst_free()).

Thus, tell others it can't be used in softirq context, and
teach lockdep about that. It's realized by patch-0002.

Your comments are very appreciated.

Thanks,
Yong

---
Yong Zhang (3):
      timer: fix comments of try_to_del_timer_sync()
      timer: del_timer_sync() can be used in softirq context
      timer: warn when del_timer_sync() used in hardirq context

 kernel/timer.c |   16 ++++++++--------
 1 files changed, 8 insertions(+), 8 deletions(-)

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