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authorThomas Gleixner <tglx@linutronix.de>2009-07-25 16:18:34 +0200
committerIngo Molnar <mingo@elte.hu>2011-09-13 11:12:05 +0200
commit2d21a29fb62f142b8a62496700d8d82a6a8fd783 (patch)
tree78d83ed47a72b1e31ecadb3f77e91f865b407b48 /include/linux/oprofile.h
parent6b2c1800f1d3a608af952cfbd57f8f1a71c5d9b4 (diff)
downloadblackbird-op-linux-2d21a29fb62f142b8a62496700d8d82a6a8fd783.tar.gz
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locking, oprofile: Annotate oprofilefs lock as raw
The oprofilefs_lock can be taken in atomic context (in profiling interrupts) and therefore cannot 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/linux/oprofile.h')
-rw-r--r--include/linux/oprofile.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/oprofile.h b/include/linux/oprofile.h
index 49c8727eeb57..a4c562453f6b 100644
--- a/include/linux/oprofile.h
+++ b/include/linux/oprofile.h
@@ -166,7 +166,7 @@ ssize_t oprofilefs_ulong_to_user(unsigned long val, char __user * buf, size_t co
int oprofilefs_ulong_from_user(unsigned long * val, char const __user * buf, size_t count);
/** lock for read/write safety */
-extern spinlock_t oprofilefs_lock;
+extern raw_spinlock_t oprofilefs_lock;
/**
* Add the contents of a circular buffer to the event buffer.
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