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| author |   Don Zickus <dzickus@redhat.com> | 2010-08-31 23:00:07 -0400 |
|---|---|---|
| committer |   Ingo Molnar <mingo@elte.hu> | 2010-09-01 10:02:28 +0200 |
| commit | 68d3f1d810500e8b975bdf0b20dd83d060076b4b (patch) | |
| tree | 68d07e9d165aa9fde390dfa5694bb58aa63adb0d /arch | |
| parent | tracing: Fix a race in function profile (diff) | |
| download | linux-dev-68d3f1d810500e8b975bdf0b20dd83d060076b4b.tar.xz linux-dev-68d3f1d810500e8b975bdf0b20dd83d060076b4b.zip | |
lockup_detector: Sync touch_*_watchdog back to old semantics
During my rewrite, the semantics of touch_nmi_watchdog and
touch_softlockup_watchdog changed enough to break some drivers
(mostly over preemptable regions).
These are cases where long delays on one CPU (due to
print_delay for example) can cause long delays on other
CPUs - so we must 'touch' the nmi_watchdog flag of those
other CPUs as well.
This change brings those touch_*_watchdog() functions back in line
with to how they used to work.
Signed-off-by: Don Zickus <dzickus@redhat.com>
Acked-by: Cyrill Gorcunov <gorcunov@openvz.org>
Cc: peterz@infradead.org
Cc: fweisbec@gmail.com
LKML-Reference: <1283310009-22168-2-git-send-email-dzickus@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch')
0 files changed, 0 insertions, 0 deletions