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| author | Thomas Gleixner <tglx@linutronix.de> | 2010-02-24 09:54:54 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2011-09-13 11:11:59 +0200 |
| commit | ddb6c9b58a19edcfac93ac670b066c836ff729f1 (patch) | |
| tree | 70a9ab2dde08671a050424b0d70fa535472e1345 /include/linux/rwsem-spinlock.h | |
| parent | 8292c9e15c3b069459794a04f5e2cf0d5665ddc4 (diff) | |
| download | op-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.h | 2 |
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; |
