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authorAnton Blanchard <anton@samba.org>2012-06-20 21:53:03 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2012-06-20 23:39:36 +0200
commitf39cdaebb89dc3e6dd4f3e75b6d4e87ef12190af (patch)
tree3e6db2d5c97c822591350be26a09097589ef5b8c /kernel/pid_namespace.c
parentViresh has moved (diff)
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fault-inject: avoid call to random32() if fault injection is disabled
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 <anton@samba.org> Acked-by: Akinobu Mita <akinobu.mita@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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