linux-toradex.git/lib/fault-inject.c, branch v4.12

lib/fault-inject.c: use correct check for interrupts

2017-05-09T00:15:12+00:00

in_interrupt() also returns true when bh is disabled in task context.
That's not what fail_task() wants to check.  Use the new in_task()
predicate that does the right thing.

Link: http://lkml.kernel.org/r/20170321091805.140676-1-dvyukov@google.com
Signed-off-by: Dmitry Vyukov 
Reviewed-by: Akinobu Mita 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

fault-inject: fix inverted interval/probability values in printk

2015-10-23T08:55:10+00:00

interval displays the probability and vice versa.

Fixes: 6adc4a22f20bb ("fault-inject: add ratelimit option")
Acked-by: Akinobu Mita 
Cc: 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

fault-inject: add ratelimit option

2014-12-13T20:42:52+00:00

Current debug levels are not optimal.  Especially if one want to provoke
big numbers of faults(broken device simulator) then any verbose level will
produce giant numbers of identical logging messages.  Let's add ratelimit
parameter for that purpose.

Signed-off-by: Dmitry Monakhov 
Acked-by: Akinobu Mita 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

debugfs: add get/set for atomic types

2013-06-03T20:55:01+00:00

debugfs currently lack the ability to create attributes
that set/get atomic_t values.

This patch adds support for this through a new
debugfs_create_atomic_t() function.

Signed-off-by: Seth Jennings 
Acked-by: Greg Kroah-Hartman 
Acked-by: Mel Gorman 
Acked-by: Rik van Riel 
Acked-by: Konrad Rzeszutek Wilk 
Signed-off-by: Greg Kroah-Hartman

lib/: rename random32() to prandom_u32()

2013-04-30T01:28:42+00:00

Use preferable function name which implies using a pseudo-random
number generator.

Signed-off-by: Akinobu Mita 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

fault-inject: avoid call to random32() if fault injection is disabled

2012-06-20T21:39:36+00:00

After enabling CONFIG_FAILSLAB I noticed random32 in profiles even if slub
fault injection wasn't enabled at runtime.

should_fail forces a comparison against random32() even if probability is
0:

        if (attr->probability <= random32() % 100)
                return false;

Add a check up front for probability == 0 and avoid all of the more
complicated checks.

Signed-off-by: Anton Blanchard 
Acked-by: Akinobu Mita 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

lib: reduce the use of module.h wherever possible

2012-03-07T20:04:04+00:00

For files only using THIS_MODULE and/or EXPORT_SYMBOL, map
them onto including export.h -- or if the file isn't even
using those, then just delete the include.  Fix up any implicit
include dependencies that were being masked by module.h along
the way.

Signed-off-by: Paul Gortmaker

switch debugfs to umode_t

2012-01-04T03:54:56+00:00

Signed-off-by: Al Viro

fault-inject: export setup_fault_attr()

2011-10-26T20:32:11+00:00

mmc_core module needs to use setup_fault_attr() in order
to set fault injection attributes during module load time.

Signed-off-by: Per Forlin 
Reviewed-by: Akinobu Mita 
Signed-off-by: Chris Ball

fault-inject: export fault injection functions

2011-10-26T19:43:34+00:00

Export symbols should_fail() and fault_create_debugfs_attr() in order
to let modules utilize the fault injection framework.

Signed-off-by: Per Forlin 
Acked-by: Akinobu Mita 
Signed-off-by: Chris Ball