linux-kernel - Re: [RFC PATCH] xfs: pass KM_SLEEP flag to kmem_realloc() in xlog_recover_add_to_cnt

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Message-ID: <20120127105253.GA23335@infradead.org>
Date:	Fri, 27 Jan 2012 05:52:53 -0500
From:	Christoph Hellwig <hch@...radead.org>
To:	Mitsuo Hayasaka <mitsuo.hayasaka.hu@...achi.com>
Cc:	Ben Myers <bpm@....com>, Alex Elder <aelder@....com>,
	Christoph Hellwig <hch@....de>, Alex Elder <elder@...nel.org>,
	linux-kernel@...r.kernel.org, xfs@....sgi.com,
	xfs-masters@....sgi.com, yrl.pp-manager.tt@...achi.com
Subject: Re: [RFC PATCH] xfs: pass KM_SLEEP flag to kmem_realloc() in
 xlog_recover_add_to_cnt_trans()

On Fri, Jan 27, 2012 at 03:37:26PM +0900, Mitsuo Hayasaka wrote:
> The kmem_realloc() in xfs is given KM_* memory allocation flags. And it
> allocates memory using kmalloc() after they are converted to gfp_mask
> flags. In xlog_recover_add_to_cont_trans(), 0u is passed to kmem_realloc(),
> instead of them. I guess it is preferred to use them, and here memory must
> be allocated but don't have to be done with GFP_ATOMIC. So, this patch
> changes it to KM_SLEEP.

Looks good.  I actually just noticed it when changing the kmem_realloc
implementation, but let's put your patch in before that and send it off
to Linus ASAP.

Reviewed-by: Christoph Hellwig <hch@....de>
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