linux-ext4 - Re: [PATCH] ext4: remove loop around bio

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Message-ID: <20110630022033.GX2729@thunk.org>
Date:	Wed, 29 Jun 2011 22:20:33 -0400
From:	Ted Ts'o <tytso@....edu>
To:	Steven Liu <lingjiujianke@...il.com>
Cc:	linux-ext4@...r.kernel.org
Subject: Re: [PATCH] ext4: remove loop around bio_alloc()

On Thu, Jun 30, 2011 at 10:12:25AM +0800, Steven Liu wrote:
> > +       bio = bio_alloc(GFP_NOIO, min(nvecs, BIO_MAX_PAGES));
> Is this needn't to check if bio_alloc success?

No, that was the point of this patch.  See the commit description.
Also see the comment for bio_alloc() in fs/bio.c, and note that
the __GFP_WAIT bit is set in GFP_NOFS.

Regards,

						- Ted
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