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Commit 2b7d0390 authored by Ingo Molnar's avatar Ingo Molnar
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tracing: branch tracer, fix vdso crash



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: default avatarIngo Molnar <mingo@elte.hu>
parent f88c4ae9
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