The patch titled
lockdep ifdef fix
has been added to the -mm tree. Its filename is
lockdep-ifdef-fix.patch
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: lockdep ifdef fix
From: Jarek Poplawski <jarkao2@xxxxx>
With
CONFIG_SMP=y
CONFIG_PREEMPT=y
CONFIG_LOCKDEP=y
CONFIG_DEBUG_LOCK_ALLOC=y
# CONFIG_PROVE_LOCKING is not set
spin_unlock_irqrestore() goes through lockdep but spin_lock_irqsave() doesn't.
Apparently, bad things happen.
Acked-by: Ingo Molnar <mingo@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
kernel/spinlock.c | 2 +-
1 files changed, 1 insertion(+), 1 deletion(-)
diff -puN kernel/spinlock.c~lockdep-ifdef-fix kernel/spinlock.c
--- a/kernel/spinlock.c~lockdep-ifdef-fix
+++ a/kernel/spinlock.c
@@ -72,7 +72,7 @@ EXPORT_SYMBOL(_write_trylock);
* not re-enabled during lock-acquire (which the preempt-spin-ops do):
*/
#if !defined(CONFIG_PREEMPT) || !defined(CONFIG_SMP) || \
- defined(CONFIG_PROVE_LOCKING)
+ defined(CONFIG_DEBUG_LOCK_ALLOC)
void __lockfunc _read_lock(rwlock_t *lock)
{
_
Patches currently in -mm which might be from jarkao2@xxxxx are
lockdep-ifdef-fix.patch
-
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