From: James Bottomley <James.Bottomley@SteelEye.com>
To: Jens Axboe <axboe@suse.de>
Cc: Hua Zhong <hzhong@gmail.com>,
linux-kernel@vger.kernel.org, akpm@osdl.org
Subject: Re: [PATCH] likely cleanup: revert unlikely in ll_back_merge_fn
Date: Wed, 26 Apr 2006 08:50:35 -0500 [thread overview]
Message-ID: <1146059435.3908.3.camel@mulgrave.il.steeleye.com> (raw)
In-Reply-To: <20060426052049.GV4102@suse.de>
On Wed, 2006-04-26 at 07:20 +0200, Jens Axboe wrote:
> But blk_recount_segments() sets the BIO_SEG_VALID flag. Ugh ok
> __bio_add_page() basically kills the flag. James, I think you are the
> author of that addition, does it really need to be so restrictive?
>
> /* If we may be able to merge these biovecs, force a recount */
> if (bio->bi_vcnt && (BIOVEC_PHYS_MERGEABLE(bvec-1, bvec) ||
> BIOVEC_VIRT_MERGEABLE(bvec-1, bvec)))
> bio->bi_flags &= ~(1 << BIO_SEG_VALID);
Help me out here ... I can't find this chunk of code in the current
tree. Where is it?
James
next prev parent reply other threads:[~2006-04-26 13:50 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-04-25 18:18 Hua Zhong
2006-04-25 18:30 ` Jens Axboe
2006-04-25 21:38 ` Hua Zhong
2006-04-26 5:20 ` Jens Axboe
2006-04-26 13:50 ` James Bottomley [this message]
2006-04-26 13:55 ` Jens Axboe
2006-04-26 14:24 ` James Bottomley
2006-04-27 14:39 ` Jens Axboe
2006-04-26 17:06 ` Hua Zhong
2006-04-30 19:25 ` Pavel Machek
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