linux-kernel - Re: [PATCH 05/10] writeback: support

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Message-ID: <4A51EB8D.1070300@gmail.com>
Date:	Mon, 06 Jul 2009 15:18:21 +0300
From:	Artem Bityutskiy <dedekind1@...il.com>
To:	Jens Axboe <jens.axboe@...cle.com>
CC:	linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
	chris.mason@...cle.com, david@...morbit.com, hch@...radead.org,
	akpm@...ux-foundation.org, jack@...e.cz,
	yanmin_zhang@...ux.intel.com, richard@....demon.co.uk,
	damien.wyart@...e.fr, fweisbec@...il.com, Alan.Brunelle@...com
Subject: Re: [PATCH 05/10] writeback: support > 1 flusher thread per bdi

Jens Axboe wrote:
> +static struct bdi_work *bdi_alloc_work(struct super_block *sb, long nr_pages,
> +				       enum writeback_sync_modes sync_mode)
> +{
> +	struct bdi_work *work;
> +
> +	work = kmalloc(sizeof(*work), GFP_ATOMIC);
> +	if (work)
> +		bdi_work_init(work, sb, nr_pages, sync_mode);
>  
> -	wb_start_writeback(&bdi->wb, sb, nr_pages, sync_mode);
> +	return work;
> +}

Since the caller of this function handles kmalloc failure gracefully,
should we also pass __GFP_NOWARN flag to kmalloc() here, in order to
avoid large and scary no-memory complaints?

-- 
Best Regards,
Artem Bityutskiy (Артём Битюцкий)
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