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x86: ftrace - simplify wait_for_nmi

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Get rid of 'waited' stack variable.

Signed-off-by: Cyrill Gorcunov <[email protected]>
Signed-off-by: Steven Rostedt <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
This commit is contained in:
Cyrill Gorcunov 2009-01-26 18:28:02 +03:00 • committed by Ingo Molnar
commit 8902528237
1 changed files with 5 additions and 6 deletions
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11
arch/x86/kernel/ftrace.c
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@ -133,15 +133,14 @@ void ftrace_nmi_exit(void)
static void wait_for_nmi(void)
{
int waited = 0;
if (!atomic_read(&in_nmi))
return;
while (atomic_read(&in_nmi)) {
waited = 1;
do {
cpu_relax();
}
} while(atomic_read(&in_nmi));
if (waited)
nmi_wait_count++;
nmi_wait_count++;
}
static int