Messages in this thread | | | Date | Fri, 17 May 2002 08:36:07 +0200 | From | Jens Axboe <> | Subject | [patch] ide tcq for 2.4.19-pre8 |
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Hi,
Fixed a few bugs and missing functionality (recovery) since the initial 2.4 version. Changelog:
- (generic tcq) use list_for_each_safe() in blk_queue_invalidate_tags(), we are removing entries while browsning. - (ide tcq) remember to honor max depth set. - (ide tcq) fix auto_poll detection oops - (ide tcq) enable use of NOP command to clear hardware tag queue on error. - (ide tcq) hwgroup->rq clearing race - (ide tcq) refuse to toggle tcq enable flag on busy drive. This will need to be fixed properly by serializing such requests with the normal request queue.
I have tested error recovery, and it works. I've provoked errors at full queue depths, and the code correctly recovered and kept spinning without data loss.
Generic tcq support:
*.kernel.org/pub/linux/kernel/people/axboe/patches/v2.4/2.4.19-pre8/block-tag-2419p8-2.bz2
IDE tcq support:
*.kernel.org/pub/linux/kernel/people/axboe/patches/v2.4/2.4.19-pre8/ide-tag-2419p8-2.bz2
All-in-one:
*.kernel.org/pub/linux/kernel/people/axboe/patches/v2.4/2.4.19-pre8/ide-block-tag-2419p8.bz2
Enjoy, -- Jens Axboe
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