The patch titled
Document SPIN_LOCK_UNLOCKED/RW_LOCK_UNLOCKED deprecation
has been removed from the -mm tree. Its filename was
document-spin_lock_unlocked-rw_lock_unlocked-deprecation.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
Subject: Document SPIN_LOCK_UNLOCKED/RW_LOCK_UNLOCKED deprecation
From: Michael Ellerman <[EMAIL PROTECTED]>
Apparently it's not cool anymore to use SPIN/RW_LOCK_UNLOCKED. There's
some mention of this in Documentation/spinlocks.txt, but that only talks
about dynamic initialisation.
A comment in the code mentioning the preferred usage would be good IMHO.
[EMAIL PROTECTED]: add reason for deprecation]
Signed-off-by: Michael Ellerman <[EMAIL PROTECTED]>
Acked-by: Ingo Molnar <[EMAIL PROTECTED]>
Signed-off-by: Andrew Morton <[EMAIL PROTECTED]>
---
include/linux/spinlock_types.h | 6 ++++++
1 file changed, 6 insertions(+)
diff -puN
include/linux/spinlock_types.h~document-spin_lock_unlocked-rw_lock_unlocked-deprecation
include/linux/spinlock_types.h
---
a/include/linux/spinlock_types.h~document-spin_lock_unlocked-rw_lock_unlocked-deprecation
+++ a/include/linux/spinlock_types.h
@@ -85,6 +85,12 @@ typedef struct {
RW_DEP_MAP_INIT(lockname) }
#endif
+/*
+ * SPIN_LOCK_UNLOCKED and RW_LOCK_UNLOCKED defeat lockdep state tracking and
+ * are hence deprecated.
+ * Please use DEFINE_SPINLOCK()/DEFINE_RWLOCK() or
+ * __SPIN_LOCK_UNLOCKED()/__RW_LOCK_UNLOCKED() as appropriate.
+ */
#define SPIN_LOCK_UNLOCKED __SPIN_LOCK_UNLOCKED(old_style_spin_init)
#define RW_LOCK_UNLOCKED __RW_LOCK_UNLOCKED(old_style_rw_init)
_
Patches currently in -mm which might be from [EMAIL PROTECTED] are
origin.patch
-
To unsubscribe from this list: send the line "unsubscribe mm-commits" in
the body of a message to [EMAIL PROTECTED]
More majordomo info at http://vger.kernel.org/majordomo-info.html
