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c17bb49517
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> |
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| .. | ||
| acorn.c | ||
| acorn.h | ||
| amiga.c | ||
| amiga.h | ||
| atari.c | ||
| atari.h | ||
| check.c | ||
| check.h | ||
| efi.c | ||
| efi.h | ||
| ibm.c | ||
| ibm.h | ||
| karma.c | ||
| karma.h | ||
| Kconfig | ||
| ldm.c | ||
| ldm.h | ||
| mac.c | ||
| mac.h | ||
| Makefile | ||
| msdos.c | ||
| msdos.h | ||
| osf.c | ||
| osf.h | ||
| sgi.c | ||
| sgi.h | ||
| sun.c | ||
| sun.h | ||
| ultrix.c | ||
| ultrix.h | ||