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arm64: Fix task tracing

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For accurate accounting call contextidr_thread_switch before a
task is scheduled, rather than after, when the 'next' variable has a
different meaning since we switched the stacks.

Signed-off-by: Christopher Covington <cov@codeaurora.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
This commit is contained in:
Christopher Covington 2013-04-03 19:01:01 +01:00 committed by Catalin Marinas
parent 5c1ce6f7c2
commit 3325732f3b
1 changed files with 1 additions and 1 deletions
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arch/arm64/kernel/process.c
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@ -311,11 +311,11 @@ struct task_struct *__switch_to(struct task_struct *prev,
fpsimd_thread_switch(next);
tls_thread_switch(next);
hw_breakpoint_thread_switch(next);
contextidr_thread_switch(next);
/* the actual thread switch */
last = cpu_switch_to(prev, next);
contextidr_thread_switch(next);
return last;
}