Date: Wed, 28 Apr 2010 08:06:59 +0200
From: Pavel Machek <pavel@ucw.cz>
To: Arve Hj??nnev??g <arve@android.com>
Cc: linux-pm@lists.linux-foundation.org, linux-kernel@vger.kernel.org,
       "Rafael J. Wysocki" <rjw@sisk.pl>,
       Alan Stern <stern@rowland.harvard.edu>, Tejun Heo <tj@kernel.org>,
       Oleg Nesterov <oleg@redhat.com>, Len Brown <len.brown@intel.com>
Subject: Re: [PATCH 6/8] PM: Add suspend blocking work.
Message-ID: <20100428060659.GC3721@ucw.cz>
References: <1272429119-12103-1-git-send-email-arve@android.com>
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 <1272429119-12103-4-git-send-email-arve@android.com>
 <1272429119-12103-5-git-send-email-arve@android.com>
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Hi!

> Allow work to be queued that will block suspend while it is pending
> or executing. To get the same functionality in the calling code often
> requires a separate suspend_blocker for pending and executing work, or
> additional state and locking. This implementation does add additional
> state and locking, but this can be removed later if we add support for
> suspend blocking work to the core workqueue code.
> 
> Signed-off-by: Arve Hj??nnev??g <arve@android.com>

Seems sane. ACK.

> +struct suspend_blocking_work {
> +	struct work_struct work;
> +#ifdef CONFIG_OPPORTUNISTIC_SUSPEND

Cound we name it C_AUTO_SUSPEND... to reduce length and typo
potential?

> +	struct suspend_blocker suspend_blocker;
> +	work_func_t func;
> +	spinlock_t lock;
> +	int active;

Is the lock internal-use, or is API user allowed to use it?
								Pavel

-- 
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