tree 661cd33467685dd268e35d7e4dc1dbf2aa83d994
parent f88c4ae9f8c3939bee4337c75c7a673b5de7a8a7
author Ingo Molnar <mingo@elte.hu> 1226492258 +0100
committer Ingo Molnar <mingo@elte.hu> 1226492798 +0100

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: Ingo Molnar <mingo@elte.hu>