From:	 Jens Axboe <axboe@suse.de>
To:	 Linux Kernel <linux-kernel@vger.kernel.org>
Subject: [patch] block highmem zero bounce v15
Date:	 Mon, 24 Sep 2001 01:28:01 +0200
Cc:	 arjanv@redhat.com, "David S. Miller" <davem@redhat.com>,
	 Linus Torvalds <torvalds@transmeta.com>

Hi,

I've uploaded a new version of the patch that allows direct I/O to
highmem memory without resorting to bouncing to lower memory. Changes
since last time include:

- Update to 2.4.10

- Fix SCSI dont-merge error. No corruption, just a performance
  hit (me)

- Add single_sg_ok entry to SCSI hosts. An alternative solution would be
  to always bounce single entry sg for highmem pages, however I don't
  want decent drivers to take a hit on account of crap drivers. Now the
  entire I/O path should be unaffected for non-highmem enabled
  hosts/drivers. (me)

ATM only aic7xxx and sym53c8xxx have single_sg_ok enabled, others will
follow on a per-audit basis.

*.kernel.org/pub/linux/kernel/people/axboe/patches/2.4.10/block-highmem-all-15

-- 
Jens Axboe

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