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locking, printk: Annotate logbuf_lock as raw

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The logbuf_lock 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 <[email protected]>
[ merged and fixed it ]
Signed-off-by: Ingo Molnar <[email protected]>
This commit is contained in:
Thomas Gleixner 2009-07-25 17:50:36 +02:00 • committed by Ingo Molnar
commit 07354eb1a7
3 changed files with 28 additions and 28 deletions
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4
lib/ratelimit.c
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@ -39,7 +39,7 @@ int ___ratelimit(struct ratelimit_state *rs, const char *func)
* in addition to the one that will be printed by
* the entity that is holding the lock already:
*/
if (!spin_trylock_irqsave(&rs->lock, flags))
if (!raw_spin_trylock_irqsave(&rs->lock, flags))
return 0;
if (!rs->begin)
@ -60,7 +60,7 @@ int ___ratelimit(struct ratelimit_state *rs, const char *func)
rs->missed++;
ret = 0;
}
spin_unlock_irqrestore(&rs->lock, flags);
raw_spin_unlock_irqrestore(&rs->lock, flags);
return ret;
}