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powerpc: pSeries reconfig notifier error injection module

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This provides the ability to inject artifical errors to pSeries reconfig
notifier chain callbacks.  It is controlled through debugfs interface
under /sys/kernel/debug/notifier-error-inject/pSeries-reconfig

If the notifier call chain should be failed with some events
notified, write the error code to "actions/<notifier event>/error".

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: Greg KH <greg@kroah.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Michael Ellerman <michael@ellerman.id.au>
Cc: Dave Jones <davej@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Akinobu Mita 2012-07-30 14:43:13 -07:00 • committed by Linus Torvalds
parent 9579f5bd31
commit 08dfb4ddee
3 changed files with 70 additions and 0 deletions
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17
lib/Kconfig.debug
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@ -1166,6 +1166,23 @@ config MEMORY_NOTIFIER_ERROR_INJECT
If unsure, say N.
config PSERIES_RECONFIG_NOTIFIER_ERROR_INJECT
tristate "pSeries reconfig notifier error injection module"
depends on PPC_PSERIES && NOTIFIER_ERROR_INJECTION
help
This option provides the ability to inject artifical errors to
pSeries reconfig notifier chain callbacks. It is controlled
through debugfs interface under
/sys/kernel/debug/notifier-error-inject/pSeries-reconfig/
If the notifier call chain should be failed with some events
notified, write the error code to "actions/<notifier event>/error".
To compile this code as a module, choose M here: the module will
be called memory-notifier-error-inject.
If unsure, say N.
config FAULT_INJECTION
bool "Fault-injection framework"
depends on DEBUG_KERNEL