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authorThomas Gleixner <tglx@linutronix.de>2010-02-24 09:54:54 +0100
committerIngo Molnar <mingo@elte.hu>2011-09-13 11:11:59 +0200
commitddb6c9b58a19edcfac93ac670b066c836ff729f1 (patch)
tree70a9ab2dde08671a050424b0d70fa535472e1345 /include/linux/rwsem-spinlock.h
parent8292c9e15c3b069459794a04f5e2cf0d5665ddc4 (diff)
downloadop-kernel-dev-ddb6c9b58a19edcfac93ac670b066c836ff729f1.zip
op-kernel-dev-ddb6c9b58a19edcfac93ac670b066c836ff729f1.tar.gz
locking, rwsem: Annotate inner lock as raw
There is no reason to allow the lock protecting rwsems (the ownerless variant) to be preemptible on -rt. Convert it to raw. 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/linux/rwsem-spinlock.h')
-rw-r--r--include/linux/rwsem-spinlock.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/rwsem-spinlock.h b/include/linux/rwsem-spinlock.h
index 3470124..d5b13bc 100644
--- a/include/linux/rwsem-spinlock.h
+++ b/include/linux/rwsem-spinlock.h
@@ -22,7 +22,7 @@
*/
struct rw_semaphore {
__s32 activity;
- spinlock_t wait_lock;
+ raw_spinlock_t wait_lock;
struct list_head wait_list;
#ifdef CONFIG_DEBUG_LOCK_ALLOC
struct lockdep_map dep_map;
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