The patch titled
atomic.h: add atomic64 cmpxchg, xchg and add_unless to parisc
has been removed from the -mm tree. Its filename was
atomich-add-atomic64-cmpxchg-xchg-and-add_unless-to-parisc.patch
This patch was dropped because it had testing failures
------------------------------------------------------
Subject: atomic.h: add atomic64 cmpxchg, xchg and add_unless to parisc
From: Mathieu Desnoyers <mathieu.desnoyers@xxxxxxxxxx>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@xxxxxxxxxx>
Cc: Kyle McMartin <kyle@xxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
include/asm-parisc/atomic.h | 30 ++++++++++++++++++++++++++++--
1 file changed, 28 insertions(+), 2 deletions(-)
diff -puN include/asm-parisc/atomic.h~atomich-add-atomic64-cmpxchg-xchg-and-add_unless-to-parisc include/asm-parisc/atomic.h
--- a/include/asm-parisc/atomic.h~atomich-add-atomic64-cmpxchg-xchg-and-add_unless-to-parisc
+++ a/include/asm-parisc/atomic.h
@@ -163,7 +163,8 @@ static __inline__ int atomic_read(const
}
/* exported interface */
-#define atomic_cmpxchg(v, o, n) ((int)cmpxchg(&((v)->counter), (o), (n)))
+#define atomic_cmpxchg(v, o, n) \
+ ((__typeof__((v)->counter))cmpxchg(&((v)->counter), (o), (n)))
#define atomic_xchg(v, new) (xchg(&((v)->counter), new))
/**
@@ -177,7 +178,7 @@ static __inline__ int atomic_read(const
*/
#define atomic_add_unless(v, a, u) \
({ \
- int c, old; \
+ __typeof__((v)->counter) c, old; \
c = atomic_read(v); \
while (c != (u) && (old = atomic_cmpxchg((v), c, c + (a))) != c) \
c = old; \
@@ -270,6 +271,31 @@ atomic64_read(const atomic64_t *v)
#define atomic64_dec_and_test(v) (atomic64_dec_return(v) == 0)
#define atomic64_sub_and_test(i,v) (atomic64_sub_return((i),(v)) == 0)
+/* exported interface */
+#define atomic64_cmpxchg(v, o, n) \
+ ((__typeof__((v)->counter))cmpxchg(&((v)->counter), (o), (n)))
+#define atomic64_xchg(v, new) (xchg(&((v)->counter), new))
+
+/**
+ * atomic64_add_unless - add unless the number is a given value
+ * @v: pointer of type atomic64_t
+ * @a: the amount to add to v...
+ * @u: ...unless v is equal to u.
+ *
+ * Atomically adds @a to @v, so long as it was not @u.
+ * Returns non-zero if @v was not @u, and zero otherwise.
+ */
+#define atomic64_add_unless(v, a, u) \
+({ \
+ __typeof__((v)->counter) c, old; \
+ c = atomic64_read(v); \
+ while (c != (u) && (old = atomic64_cmpxchg((v), c, c + (a))) != c) \
+ c = old; \
+ c != (u); \
+})
+#define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0)
+
+
#endif /* __LP64__ */
#include <asm-generic/atomic.h>
_
Patches currently in -mm which might be from mathieu.desnoyers@xxxxxxxxxx are
relay-add-cpu-hotplug-support.patch
local_t-documentation.patch
local_t-documentation-fix.patch
order-of-lockdep-off-on-in-vprintk-should-be-changed.patch
minimize-lockdep_on-off-side-effect.patch
atomich-add-atomic64-cmpxchg-xchg-and-add_unless-to-parisc.patch
atomich-add-atomic64-cmpxchg-xchg-and-add_unless-to-powerpc.patch
atomich-add-atomic64-cmpxchg-xchg-and-add_unless-to-sparc64.patch
atomich-add-atomic64-cmpxchg-xchg-and-add_unless-to-x86_64.patch
atomich-add-atomic64-cmpxchg-xchg-and-add_unless-to-x86_64-fix.patch
local_t-architecture-independent-extension.patch
local_t-alpha-extension.patch
local_t-alpha-extension-fix.patch
local_t-i386-extension.patch
local_t-ia64-extension.patch
local_t-mips-extension.patch
local_t-mips-extension-fix.patch
local_t-parisc-cleanup.patch
local_t-powerpc-extension.patch
local_t-s390-cleanup.patch
local_t-sparc64-cleanup.patch
local_t-x86_64-extension.patch
-
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