tracing: branch tracer, fix vdso crash

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Impact: fix bootup crash

the branch tracer missed arch/x86/vdso/vclock_gettime.c from
disabling tracing, which caused such bootup crashes:

  [  201.840097] init[1]: segfault at 7fffed3fe7c0 ip 00007fffed3fea2e sp 000077

also clean up the ugly ifdefs in arch/x86/kernel/vsyscall_64.c by
creating DISABLE_UNLIKELY_PROFILE facility for code to turn off
instrumentation on a per file basis.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

...

This commit is contained in:

Ingo Molnar 2008-11-12 13:17:38 +01:00

parent f88c4ae9f8

commit 2b7d0390a6

3 changed files with 10 additions and 8 deletions

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9

arch/x86/kernel/vsyscall_64.c

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3

arch/x86/vdso/vclock_gettime.c

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6

include/linux/compiler.h

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