From: Jens Axboe <axboe@suse.de> To: Linux Kernel <linux-kernel@vger.kernel.org> Subject: [patch] ide tcq for 2.4.19-pre8 Date: Fri, 17 May 2002 08:36:07 +0200 Cc: Linux IDE <linux-ide@vger.kernel.org>, "Andre M. Hedrick" <andre@linux-ide.org> 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 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/