From: Peter Zijlstra <a.p.zijlstra@chello.nl>
To: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Li Zefan <lizf@cn.fujitsu.com>,
hpa@zytor.com, linux-kernel@vger.kernel.org, tglx@linutronix.de,
mingo@elte.hu, linux-tip-commits@vger.kernel.org
Subject: Re: [tip:sched/core] sched: Pull up the might_sleep() check into cond_resched()
Date: Mon, 20 Jul 2009 13:39:15 +0200 [thread overview]
Message-ID: <1248089955.15751.8494.camel@twins> (raw)
In-Reply-To: <20090720081210.GA5309@nowhere>
On Mon, 2009-07-20 at 04:12 -0400, Frederic Weisbecker wrote:
> Hm, I can read that in fs/dcache.c:512
>
> /* dentry->d_lock was dropped in prune_one_dentry() */
> cond_resched_lock(&dcache_lock);
dentry->d_lock != dcache_lock
> Isn't it a mususe of cond_resched_lock() ?
> In this case, dcache.c should be fixed.
Both sites look good wrt locking. So there's something else fishy.
next prev parent reply other threads:[~2009-07-20 11:38 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-07-16 6:28 [PATCH 1/7] sched: Drop the need_resched() loop from cond_resched() Frederic Weisbecker
2009-07-16 6:28 ` [PATCH 2/7] sched: Remove obsolete comment in __cond_resched() Frederic Weisbecker
2009-07-18 14:21 ` [tip:sched/core] " tip-bot for Frederic Weisbecker
2009-07-16 6:28 ` [PATCH 3/7] sched: Cover the CONFIG_DEBUG_SPINLOCK_SLEEP off-case for __might_sleep() Frederic Weisbecker
2009-07-18 14:21 ` [tip:sched/core] " tip-bot for Frederic Weisbecker
2009-07-16 6:28 ` [PATCH 4/7] sched: Add a preempt count base offset to __might_sleep() Frederic Weisbecker
2009-07-16 14:14 ` Peter Zijlstra
2009-07-16 14:34 ` Peter Zijlstra
2009-07-16 14:42 ` Frederic Weisbecker
2009-07-18 14:22 ` [tip:sched/core] " tip-bot for Frederic Weisbecker
2009-07-16 6:28 ` [PATCH 5/7] sched: Remove the CONFIG_PREEMPT_BKL case definition of cond_resched() Frederic Weisbecker
2009-07-18 14:22 ` [tip:sched/core] " tip-bot for Frederic Weisbecker
2009-07-16 6:28 ` [PATCH 6/7 v3] sched: Pull up the might_sleep() check in cond_resched() Frederic Weisbecker
2009-07-18 14:22 ` [tip:sched/core] sched: Pull up the might_sleep() check into cond_resched() tip-bot for Frederic Weisbecker
2009-07-20 6:50 ` Li Zefan
2009-07-20 8:12 ` Frederic Weisbecker
2009-07-20 8:49 ` Peter Zijlstra
2009-07-20 9:13 ` Frederic Weisbecker
2009-07-20 11:56 ` Ingo Molnar
2009-07-20 11:39 ` Peter Zijlstra [this message]
2009-07-22 17:17 ` Frédéric Weisbecker
2009-07-22 17:56 ` Peter Zijlstra
2009-07-16 6:28 ` [PATCH 7/7] sched: Convert the only user of cond_resched_bkl to use cond_resched() Frederic Weisbecker
2009-07-18 14:22 ` [tip:sched/core] " tip-bot for Frederic Weisbecker
2009-07-18 14:21 ` [tip:sched/core] sched: Drop the need_resched() loop from cond_resched() tip-bot for Frederic Weisbecker
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