Messages in this thread |  | | Date | Mon, 24 Sep 2001 01:28:01 +0200 | From | Jens Axboe <> | Subject | [patch] block highmem zero bounce v15 |
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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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