diff options
author | Jeremy Fitzhardinge <[email protected]> | 2011-09-30 09:10:54 -0700 |
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committer | Jeremy Fitzhardinge <[email protected]> | 2011-10-25 11:54:04 -0700 |
commit | 189c3fd68c7016e37c1ffd7a00009e2c944a9d06 (patch) | |
tree | f4df4e497ba41eefd3c5a74761de90567e8a8727 /tools/perf/scripts/python/failed-syscalls-by-pid.py | |
parent | d5d9a3b12adf339b851c8e595d2ca71c3d211363 (diff) |
stop_machine: make stop_machine safe and efficient to call early
Make stop_machine() safe to call early in boot, before stop_machine()
has been set up, by simply calling the callback function directly if
there's only one CPU online.
[ Fixes from AKPM:
- add comment
- local_irq_flags, not save_flags
- also call hard_irq_disable() for systems which need it
Tejun suggested using an explicit flag rather than just looking at
the online cpu count. ]
Signed-off-by: Jeremy Fitzhardinge <[email protected]>
Acked-by: Tejun Heo <[email protected]>
Acked-by: Peter Zijlstra <[email protected]>
Cc: Rusty Russell <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Andrew Morton <[email protected]>
Cc: H. Peter Anvin <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Steven Rostedt <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/failed-syscalls-by-pid.py')
0 files changed, 0 insertions, 0 deletions