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authorThomas Gleixner <tglx@linutronix.de>2009-07-25 14:43:30 (GMT)
committerIngo Molnar <mingo@elte.hu>2011-09-13 09:11:50 (GMT)
commit740969f91e950b64a18fdd0a25164cdee042abf0 (patch)
treeb152f88baf3868a7f3df4fa712ecd6a8c811d0a4 /lib/proportions.c
parentcdcc136ffd264849a943acb42c36ffe9b458f811 (diff)
locking, lib/proportions: Annotate prop_local_percpu::lock as raw
The prop_local_percpu::lock can be taken in atomic context and therefore cannot be preempted on -rt - annotate it. In mainline this change documents the low level nature of the lock - otherwise there's no functional difference. Lockdep and Sparse checking will work as usual. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'lib/proportions.c')
-rw-r--r--lib/proportions.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/lib/proportions.c b/lib/proportions.c
index d50746a..05df848 100644
--- a/lib/proportions.c
+++ b/lib/proportions.c
@@ -190,7 +190,7 @@ prop_adjust_shift(int *pl_shift, unsigned long *pl_period, int new_shift)
int prop_local_init_percpu(struct prop_local_percpu *pl)
{
- spin_lock_init(&pl->lock);
+ raw_spin_lock_init(&pl->lock);
pl->shift = 0;
pl->period = 0;
return percpu_counter_init(&pl->events, 0);
@@ -226,7 +226,7 @@ void prop_norm_percpu(struct prop_global *pg, struct prop_local_percpu *pl)
if (pl->period == global_period)
return;
- spin_lock_irqsave(&pl->lock, flags);
+ raw_spin_lock_irqsave(&pl->lock, flags);
prop_adjust_shift(&pl->shift, &pl->period, pg->shift);
/*
@@ -247,7 +247,7 @@ void prop_norm_percpu(struct prop_global *pg, struct prop_local_percpu *pl)
percpu_counter_set(&pl->events, 0);
pl->period = global_period;
- spin_unlock_irqrestore(&pl->lock, flags);
+ raw_spin_unlock_irqrestore(&pl->lock, flags);
}
/*
@@ -324,7 +324,7 @@ void prop_fraction_percpu(struct prop_descriptor *pd,
int prop_local_init_single(struct prop_local_single *pl)
{
- spin_lock_init(&pl->lock);
+ raw_spin_lock_init(&pl->lock);
pl->shift = 0;
pl->period = 0;
pl->events = 0;
@@ -356,7 +356,7 @@ void prop_norm_single(struct prop_global *pg, struct prop_local_single *pl)
if (pl->period == global_period)
return;
- spin_lock_irqsave(&pl->lock, flags);
+ raw_spin_lock_irqsave(&pl->lock, flags);
prop_adjust_shift(&pl->shift, &pl->period, pg->shift);
/*
* For each missed period, we half the local counter.
@@ -367,7 +367,7 @@ void prop_norm_single(struct prop_global *pg, struct prop_local_single *pl)
else
pl->events = 0;
pl->period = global_period;
- spin_unlock_irqrestore(&pl->lock, flags);
+ raw_spin_unlock_irqrestore(&pl->lock, flags);
}
/*

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