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authorThomas Gleixner <[email protected]>2017-09-12 21:37:18 +0200
committerIngo Molnar <[email protected]>2017-09-14 11:41:08 +0200
commit178b9f7a36d2c74a38274b66dd89f53611298a19 (patch)
tree6ea60b3626a552baa282502b62cd19b4429889bf /tools/perf/scripts/python/export-to-postgresql.py
parent091549858ed881e5f3054374af4f5b1cac681d50 (diff)
watchdog/hardlockup/perf: Implement init time perf validation
The watchdog tries to create perf events even after it figured out that perf is not functional or the requested event is not supported. That's braindead as this can be done once at init time and if not supported the NMI watchdog can be turned off unconditonally. Implement the perf hardlockup detector functionality for that. This creates a new event create function, which will replace the unholy mess of the existing one in later patches. Signed-off-by: Thomas Gleixner <[email protected]> Reviewed-by: Don Zickus <[email protected]> Cc: Andrew Morton <[email protected]> Cc: Borislav Petkov <[email protected]> Cc: Chris Metcalf <[email protected]> Cc: Linus Torvalds <[email protected]> Cc: Nicholas Piggin <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Sebastian Siewior <[email protected]> Cc: Ulrich Obergfell <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Ingo Molnar <[email protected]>
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