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| author | Ingo Molnar <mingo@elte.hu> | 2009-05-14 05:16:59 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-05-15 09:47:07 +0200 |
| commit | 251e8e3c7235f5944805a64f24c79fc4696793f1 (patch) | |
| tree | 8e171cd075aa20432f7c4a03e88deaf2f3f32b49 /Documentation/perf_counter/builtin-stat.c | |
| parent | 9029a5e3801f1cc7cdaab80169d82427acf928d8 (diff) | |
| download | lwn-251e8e3c7235f5944805a64f24c79fc4696793f1.tar.gz lwn-251e8e3c7235f5944805a64f24c79fc4696793f1.zip | |
perf_counter: Remove ACPI quirk
We had a disable/enable around acpi_idle_do_entry() due to an erratum
in an early prototype CPU i had access to. That erratum has been fixed
in the BIOS so remove the quirk.
The quirk also kept us from profiling interrupts that hit the ACPI idle
instruction - so this is an improvement as well, beyond a cleanup and
a micro-optimization.
[ Impact: improve profiling scope, cleanup, micro-optimization ]
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'Documentation/perf_counter/builtin-stat.c')
0 files changed, 0 insertions, 0 deletions