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WSL2-Linux-Kernel
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WSL2-Linux-Kernel/block
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Akinobu Mita c17bb49517 [PATCH] fault-injection capability for disk IO 
This patch provides fault-injection capability for disk IO.

Boot option:

fail_make_request=<probability>,<interval>,<space>,<times>

	<interval> -- specifies the interval of failures.

	<probability> -- specifies how often it should fail in percent.

	<space> -- specifies the size of free space where disk IO can be issued
		   safely in bytes.

	<times> -- specifies how many times failures may happen at most.

Debugfs:

/debug/fail_make_request/interval
/debug/fail_make_request/probability
/debug/fail_make_request/specifies
/debug/fail_make_request/times

Example:

	fail_make_request=10,100,0,-1
	echo 1 > /sys/blocks/hda/hda1/make-it-fail

generic_make_request() on /dev/hda1 fails once per 10 times.

Cc: Jens Axboe <axboe@suse.de>
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
 		2006-12-08 08:29:02 -08:00
..
Kconfig [PATCH] Centralise definitions of sector_t and blkcnt_t 2006-12-04 19:41:15 -08:00
Kconfig.iosched [PATCH] BLOCK: Make it possible to disable the block layer [try #6] 2006-09-30 20:52:31 +02:00
Makefile [PATCH] BLOCK: Make it possible to disable the block layer [try #6] 2006-09-30 20:52:31 +02:00
as-iosched.c Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 2006-12-05 14:37:56 +00:00
blktrace.c [PATCH] Allow NULL pointers in percpu_free 2006-12-07 08:39:22 -08:00
cfq-iosched.c [PATCH] slab: remove kmem_cache_t 2006-12-07 08:39:25 -08:00
deadline-iosched.c [BLOCK] Cleanup unused variable passing 2006-12-01 10:42:33 +01:00
elevator.c [BLOCK] Cleanup unused variable passing 2006-12-01 10:42:33 +01:00
genhd.c [PATCH] fault-injection capability for disk IO 2006-12-08 08:29:02 -08:00
ioctl.c [PATCH] struct path: convert block 2006-12-08 08:28:44 -08:00
ll_rw_blk.c [PATCH] fault-injection capability for disk IO 2006-12-08 08:29:02 -08:00
noop-iosched.c [BLOCK] Cleanup unused variable passing 2006-12-01 10:42:33 +01:00
scsi_ioctl.c Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6 2006-12-05 16:09:46 -08:00