From: Wu Fengguang <fengguang.wu@intel.com>
To: Jan Kara <jack@suse.cz>
Cc: Jens Axboe <jaxboe@fusionio.com>,
LKML <linux-kernel@vger.kernel.org>,
Andrew Morton <akpm@linux-foundation.org>
Subject: Re: [PATCH 2/2] mm: Add comment explaining task state setting in bdi_forker_thread()
Date: Sun, 4 Sep 2011 11:05:51 +0800 [thread overview]
Message-ID: <20110904030551.GB16361@localhost> (raw)
In-Reply-To: <1315004059-9844-3-git-send-email-jack@suse.cz>
> @@ -401,6 +401,13 @@ static int bdi_forker_thread(void *ptr)
> }
>
> spin_lock_bh(&bdi_lock);
> + /*
> + * In the following loop we are going to check whether we have
> + * some work to do without any synchronization with tasks
> + * waking us up to do work for them. So we have to set task
> + * state already here so that we don't miss wakeups coming
s/already/early/ ?
Acked-by: Wu Fengguang <fengguang.wu@intel.com>
> + * after we verify some condition.
> + */
> set_current_state(TASK_INTERRUPTIBLE);
>
> list_for_each_entry(bdi, &bdi_list, bdi_list) {
> --
> 1.7.1
next prev parent reply other threads:[~2011-09-04 3:05 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-09-02 22:54 [PATCH 0/2 v3] Small cleanup of bdi_forker_thread() Jan Kara
2011-09-02 22:54 ` [PATCH 1/2] mm: Cleanup clearing of BDI_pending bit in bdi_forker_thread() Jan Kara
2011-09-04 3:04 ` Wu Fengguang
2011-09-04 4:13 ` Wu Fengguang
2011-09-05 10:06 ` Jan Kara
2011-09-05 12:50 ` Wu Fengguang
2011-09-02 22:54 ` [PATCH 2/2] mm: Add comment explaining task state setting " Jan Kara
2011-09-04 3:05 ` Wu Fengguang [this message]
2011-09-05 10:01 ` Jan Kara
2011-09-05 12:44 ` Wu Fengguang
2011-09-05 15:53 ` Jan Kara
2011-09-07 22:19 ` Andrew Morton
2011-09-08 0:29 ` Wu Fengguang
2011-09-02 23:07 ` [PATCH 0/2 v3] Small cleanup of bdi_forker_thread() Jens Axboe
2011-09-02 23:12 ` Jan Kara
2011-09-02 23:16 ` Jens Axboe
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