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Re: [PATCH 2/2] x86: replace BIO_VMERGE_BOUNDARY with BIOVEC_PHYS_MERGEABLE

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From: Jeremy Fitzhardinge
Subject: Re: [PATCH 2/2] x86: replace BIO_VMERGE_BOUNDARY with BIOVEC_PHYS_MERGEABLE
Date: Monday, October 27, 2008 - 1:21 am

FUJITA Tomonori wrote:

Under Xen, pages which appear to be pseudo-physically adjacent are not 
necessarily really physically adjacent.  We need to hook 
BIOVEC_PHYS_MERGEABLE to prevent the bio layer from inappropriately 
merging requests across non-contiguous page boundaries.

    J
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Messages in current thread:
[PATCH] x86: remove dead BIO_VMERGE_BOUNDARY definition, FUJITA Tomonori, (Thu Oct 23, 10:41 pm)
Re: [PATCH] x86: remove dead BIO_VMERGE_BOUNDARY definition, Jeremy Fitzhardinge, (Fri Oct 24, 1:58 pm)
[PATCH 1/2] bio: define __BIOVEC_PHYS_MERGEABLE, Jeremy Fitzhardinge, (Fri Oct 24, 1:59 pm)
[PATCH 2/2] x86: replace BIO_VMERGE_BOUNDARY with BIOVEC_P ..., Jeremy Fitzhardinge, (Fri Oct 24, 1:59 pm)
Re: [PATCH 2/2] x86: replace BIO_VMERGE_BOUNDARY with BIOV ..., FUJITA Tomonori, (Sun Oct 26, 8:52 pm)
Re: [PATCH] x86: remove dead BIO_VMERGE_BOUNDARY definition, FUJITA Tomonori, (Sun Oct 26, 9:42 pm)
Re: [PATCH 2/2] x86: replace BIO_VMERGE_BOUNDARY with BIOV ..., Jeremy Fitzhardinge, (Mon Oct 27, 1:21 am)
Re: [PATCH 2/2] x86: replace BIO_VMERGE_BOUNDARY with BIOV ..., FUJITA Tomonori, (Mon Oct 27, 1:37 am)
Re: [PATCH 2/2] x86: replace BIO_VMERGE_BOUNDARY with BIOV ..., Jeremy Fitzhardinge, (Mon Oct 27, 2:18 am)
Re: [PATCH 2/2] x86: replace BIO_VMERGE_BOUNDARY with BIOV ..., FUJITA Tomonori, (Mon Oct 27, 2:36 am)
Re: [PATCH 2/2] x86: replace BIO_VMERGE_BOUNDARY with BIOV ..., Jens Axboe, (Mon Oct 27, 2:41 am)
Re: [PATCH 2/2] x86: replace BIO_VMERGE_BOUNDARY with BIOV ..., Jeremy Fitzhardinge, (Mon Oct 27, 4:43 am)
Re: [PATCH 2/2] x86: replace BIO_VMERGE_BOUNDARY with BIOV ..., Jens Axboe, (Mon Oct 27, 4:57 am)
Re: [PATCH 2/2] x86: replace BIO_VMERGE_BOUNDARY with BIOV ..., FUJITA Tomonori, (Tue Oct 28, 4:06 pm)
Re: [PATCH 2/2] x86: replace BIO_VMERGE_BOUNDARY with BIOV ..., Ingo Molnar, (Wed Oct 29, 1:37 am)
Re: [PATCH 2/2] x86: replace BIO_VMERGE_BOUNDARY with BIOV ..., Jeremy Fitzhardinge, (Wed Oct 29, 2:24 am)
Re: [PATCH 2/2] x86: replace BIO_VMERGE_BOUNDARY with BIOV ..., Jens Axboe, (Wed Oct 29, 2:27 am)
Re: [PATCH 2/2] x86: replace BIO_VMERGE_BOUNDARY with BIOV ..., Ingo Molnar, (Wed Oct 29, 3:51 am)
Re: [PATCH 2/2] x86: replace BIO_VMERGE_BOUNDARY with BIOV ..., Ingo Molnar, (Wed Oct 29, 4:25 am)
Re: [PATCH 2/2] x86: replace BIO_VMERGE_BOUNDARY with BIOV ..., Jens Axboe, (Wed Oct 29, 4:27 am)
Re: [PATCH 2/2] x86: replace BIO_VMERGE_BOUNDARY with BIOV ..., Ingo Molnar, (Wed Oct 29, 4:30 am)
Re: [PATCH 2/2] x86: replace BIO_VMERGE_BOUNDARY with BIOV ..., Jens Axboe, (Wed Oct 29, 4:34 am)
Re: [PATCH 2/2] x86: replace BIO_VMERGE_BOUNDARY with BIOV ..., FUJITA Tomonori, (Wed Oct 29, 4:55 am)
Re: [PATCH 2/2] x86: replace BIO_VMERGE_BOUNDARY with BIOV ..., Jeremy Fitzhardinge, (Wed Oct 29, 5:12 am)
Re: [PATCH 2/2] x86: replace BIO_VMERGE_BOUNDARY with BIOV ..., Ingo Molnar, (Wed Oct 29, 6:03 am)
Re: [PATCH 2/2] x86: replace BIO_VMERGE_BOUNDARY with BIOV ..., Jeremy Fitzhardinge, (Wed Oct 29, 6:06 am)
Re: [PATCH 2/2] x86: replace BIO_VMERGE_BOUNDARY with BIOV ..., Jens Axboe, (Wed Oct 29, 6:06 am)