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ARM: Stop irqsoff trace on return to user
authorTodd Poynor <toddpoynor@google.com>
Tue, 9 Nov 2010 04:26:23 +0000 (20:26 -0800)
committerTodd Poynor <toddpoynor@google.com>
Thu, 23 Dec 2010 01:09:24 +0000 (17:09 -0800)
commit4e5206fb786eba459f317b9386d2b3767f0bf50d
tree28c966834540f74397d8ce1c6c967f9a57c84983tree | snapshot
parente2760fa5d1b1318212753147f207696add2177f5commit | diff
ARM: Stop irqsoff trace on return to user

If the irqsoff tracer is in use, stop tracing the interrupt disable
interval when returning to userspace.  Tracing userspace execution
time as interrupts disabled time is not helpful for kernel
performance analysis purposes.  Only do so if the irqsoff tracer
is enabled, to avoid overhead purely for lockdep, which doesn't
care.

Change-Id: I74cde7dd0c4c3a783af34e76bd4efc1f85315abe
Signed-off-by: Todd Poynor <toddpoynor@google.com>
arch/arm/kernel/entry-common.S diff | blob | history
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