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authorHeiko Carstens <heiko.carstens@de.ibm.com>2014-08-15 14:33:46 +0400
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2014-09-09 10:53:28 +0400
commit2481a87b0250bbf429fc8cdc78331efbc44a0221 (patch)
tree0bf818ad656c2c12bbe4bc5b7882c99826439b93 /Documentation/mutex-design.txt
parent0f1b1ff54b386926ef1a524e60ef89ae7738bbd5 (diff)
downloadlinux-2481a87b0250bbf429fc8cdc78331efbc44a0221.tar.xz
s390/ftrace: optimize function graph caller code
When the function graph tracer is disabled we can skip three additional instructions. So let's just do this. So if function tracing is enabled but function graph tracing is runtime disabled, we get away with a single unconditional branch. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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