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| author | Jens Axboe <jens.axboe@oracle.com> | 2008-09-14 05:56:33 -0700 |
|---|---|---|
| committer | Jens Axboe <jens.axboe@oracle.com> | 2008-10-09 08:56:17 +0200 |
| commit | 581d4e28d9195aa8b2231383dbabc288988d615e (patch) | |
| tree | 093bcac9a538ef67edcf91826f7532bdb88e6248 /lib | |
| parent | 0a0d96b03a1f3bfd6bc3ea08008699e8e59fccd9 (diff) | |
| download | kernel_samsung_smdk4412-581d4e28d9195aa8b2231383dbabc288988d615e.tar.gz kernel_samsung_smdk4412-581d4e28d9195aa8b2231383dbabc288988d615e.tar.bz2 kernel_samsung_smdk4412-581d4e28d9195aa8b2231383dbabc288988d615e.zip | |
block: add fault injection mechanism for faking request timeouts
Only works for the generic request timer handling. Allows one to
sporadically ignore request completions, thus exercising the timeout
handling.
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Kconfig.debug | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index c556896abe5..7d7a31d0dde 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -683,10 +683,21 @@ config FAIL_PAGE_ALLOC config FAIL_MAKE_REQUEST bool "Fault-injection capability for disk IO" - depends on FAULT_INJECTION + depends on FAULT_INJECTION && BLOCK help Provide fault-injection capability for disk IO. +config FAIL_IO_TIMEOUT + bool "Faul-injection capability for faking disk interrupts" + depends on FAULT_INJECTION && BLOCK + help + Provide fault-injection capability on end IO handling. This + will make the block layer "forget" an interrupt as configured, + thus exercising the error handling. + + Only works with drivers that use the generic timeout handling, + for others it wont do anything. + config FAULT_INJECTION_DEBUG_FS bool "Debugfs entries for fault-injection capabilities" depends on FAULT_INJECTION && SYSFS && DEBUG_FS |