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| author | Steven Rostedt <rostedt@goodmis.org> | 2008-05-12 21:21:02 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2008-05-23 22:01:34 +0200 |
| commit | 2bb6f8d6389cbfadd657e7dc069f6986abf35e4f (patch) | |
| tree | 894c84bdec4c716b1e16c60e2ab2a1ab198ac11d /mm/pagewalk.c | |
| parent | ftrace: special stacktrace (diff) | |
| download | linux-2bb6f8d6389cbfadd657e7dc069f6986abf35e4f.tar.xz linux-2bb6f8d6389cbfadd657e7dc069f6986abf35e4f.zip | |
ftrace: use raw_smp_processor_id for mcount functions
Due to debug hooks in the kernel that can change the way smp_processor_id
works, use raw_smp_processor_id in mcount called functions (namely
ftrace_record_ip). Currently we annotate most debug functions from calling
mcount, but we should not rely on that to prevent kernel lockups.
This patch uses the raw_smp_processor_id to prevent a recusive crash
that can happen if a debug hook in smp_processor_id calls mcount.
Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'mm/pagewalk.c')
0 files changed, 0 insertions, 0 deletions