diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2009-07-25 16:43:30 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2011-09-13 11:11:50 +0200 |
| commit | 740969f91e950b64a18fdd0a25164cdee042abf0 (patch) | |
| tree | b152f88baf3868a7f3df4fa712ecd6a8c811d0a4 /include | |
| parent | cdcc136ffd264849a943acb42c36ffe9b458f811 (diff) | |
| download | lwn-740969f91e950b64a18fdd0a25164cdee042abf0.tar.gz lwn-740969f91e950b64a18fdd0a25164cdee042abf0.zip | |
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 'include')
| -rw-r--r-- | include/linux/proportions.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/include/linux/proportions.h b/include/linux/proportions.h index cf793bbbd05e..ef35bb73f69b 100644 --- a/include/linux/proportions.h +++ b/include/linux/proportions.h @@ -58,7 +58,7 @@ struct prop_local_percpu { */ int shift; unsigned long period; - spinlock_t lock; /* protect the snapshot state */ + raw_spinlock_t lock; /* protect the snapshot state */ }; int prop_local_init_percpu(struct prop_local_percpu *pl); @@ -106,11 +106,11 @@ struct prop_local_single { */ unsigned long period; int shift; - spinlock_t lock; /* protect the snapshot state */ + raw_spinlock_t lock; /* protect the snapshot state */ }; #define INIT_PROP_LOCAL_SINGLE(name) \ -{ .lock = __SPIN_LOCK_UNLOCKED(name.lock), \ +{ .lock = __RAW_SPIN_LOCK_UNLOCKED(name.lock), \ } int prop_local_init_single(struct prop_local_single *pl); |