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authorJens Axboe <jens.axboe@oracle.com>2008-09-14 05:56:33 -0700
committerJens Axboe <jens.axboe@oracle.com>2008-10-09 08:56:17 +0200
commit581d4e28d9195aa8b2231383dbabc288988d615e (patch)
tree093bcac9a538ef67edcf91826f7532bdb88e6248 /lib
parent0a0d96b03a1f3bfd6bc3ea08008699e8e59fccd9 (diff)
downloadconfigs-581d4e28d9195aa8b2231383dbabc288988d615e.tar.gz
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.debug13
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