The patch titled
Fix sparse annotation of spin unlock macros in one case
has been added to the -mm tree. Its filename is
fix-sparse-annotation-of-spin-unlock-macros-in-one-case.patch
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: Fix sparse annotation of spin unlock macros in one case
From: Pavel Roskin <proski@xxxxxxx>
SMP systems without preemption and spinlock debugging enabled use unlock
macros that don't tell sparse that the lock is being released. Add sparse
annotations in this case.
Signed-off-by: Pavel Roskin <proski@xxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
include/linux/spinlock.h | 33 ++++++++++++++++++++++++---------
1 file changed, 24 insertions(+), 9 deletions(-)
diff -puN include/linux/spinlock.h~fix-sparse-annotation-of-spin-unlock-macros-in-one-case include/linux/spinlock.h
--- a/include/linux/spinlock.h~fix-sparse-annotation-of-spin-unlock-macros-in-one-case
+++ a/include/linux/spinlock.h
@@ -228,15 +228,30 @@ do { \
# define read_unlock_irq(lock) _read_unlock_irq(lock)
# define write_unlock_irq(lock) _write_unlock_irq(lock)
#else
-# define spin_unlock(lock) __raw_spin_unlock(&(lock)->raw_lock)
-# define read_unlock(lock) __raw_read_unlock(&(lock)->raw_lock)
-# define write_unlock(lock) __raw_write_unlock(&(lock)->raw_lock)
-# define spin_unlock_irq(lock) \
- do { __raw_spin_unlock(&(lock)->raw_lock); local_irq_enable(); } while (0)
-# define read_unlock_irq(lock) \
- do { __raw_read_unlock(&(lock)->raw_lock); local_irq_enable(); } while (0)
-# define write_unlock_irq(lock) \
- do { __raw_write_unlock(&(lock)->raw_lock); local_irq_enable(); } while (0)
+# define spin_unlock(lock) \
+ do {__raw_spin_unlock(&(lock)->raw_lock); __release(lock); } while (0)
+# define read_unlock(lock) \
+ do {__raw_read_unlock(&(lock)->raw_lock); __release(lock); } while (0)
+# define write_unlock(lock) \
+ do {__raw_write_unlock(&(lock)->raw_lock); __release(lock); } while (0)
+# define spin_unlock_irq(lock) \
+do { \
+ __raw_spin_unlock(&(lock)->raw_lock); \
+ __release(lock); \
+ local_irq_enable(); \
+} while (0)
+# define read_unlock_irq(lock) \
+do { \
+ __raw_read_unlock(&(lock)->raw_lock); \
+ __release(lock); \
+ local_irq_enable(); \
+} while (0)
+# define write_unlock_irq(lock) \
+do { \
+ __raw_write_unlock(&(lock)->raw_lock); \
+ __release(lock); \
+ local_irq_enable(); \
+} while (0)
#endif
#define spin_unlock_irqrestore(lock, flags) \
_
Patches currently in -mm which might be from proski@xxxxxxx are
fix-sparse-annotation-of-spin-unlock-macros-in-one-case.patch
-
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