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s390/ftrace: Avoid trampolines if possible
authorVasily Gorbik <gor@linux.ibm.com>
Wed, 28 Aug 2024 17:06:55 +0000 (19:06 +0200)
committerVasily Gorbik <gor@linux.ibm.com>
Thu, 29 Aug 2024 20:56:34 +0000 (22:56 +0200)
commitefd9cd019e95d399e27be8dfbfc1df91517c0813
treea0ebbca931862380ad9d66e1c9d23ae2789fcde1tree
parent30799152c375c4e1f40c7f2b98d766748d3b3333commit | diff
s390/ftrace: Avoid trampolines if possible

When a sequential instruction fetching facility is present, it is safe
to patch ftrace NOPs in function prologues. All of them are 8-byte
aligned.

Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
arch/s390/kernel/ftrace.c diff | blob | history
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