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Message-Id: <11697417771413-git-send-email-mathieu.desnoyers@polymtl.ca>
Date: Thu, 25 Jan 2007 11:16:08 -0500
From: Mathieu Desnoyers <mathieu.desnoyers@...ymtl.ca>
To: linux-kernel@...r.kernel.org
Cc: Linus Torvalds <torvalds@...l.org>, Andrew Morton <akpm@...l.org>,
Ingo Molnar <mingo@...hat.com>,
Greg Kroah-Hartman <gregkh@...e.de>,
Christoph Hellwig <hch@...radead.org>, ltt-dev@...fik.org,
systemtap@...rces.redhat.com,
Douglas Niehaus <niehaus@...s.ku.edu>,
"Martin J. Bligh" <mbligh@...igh.org>,
Thomas Gleixner <tglx@...utronix.de>,
Paul Mackerras <paulus@...ba.org>,
Mathieu Desnoyers <mathieu.desnoyers@...ymtl.ca>
Subject: [PATCH 01/10] local_t : architecture independant extension
local_t : architecture independant extension
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@...ymtl.ca>
--- a/include/asm-generic/local.h
+++ b/include/asm-generic/local.h
@@ -33,6 +33,19 @@ typedef struct
#define local_add(i,l) atomic_long_add((i),(&(l)->a))
#define local_sub(i,l) atomic_long_sub((i),(&(l)->a))
+#define local_sub_and_test(i, l) atomic_long_sub_and_test((i), (&(l)->a))
+#define local_dec_and_test(l) atomic_long_dec_and_test(&(l)->a)
+#define local_inc_and_test(l) atomic_long_inc_and_test(&(l)->a)
+#define local_add_negative(i, l) atomic_long_add_negative((i), (&(l)->a))
+#define local_add_return(i, l) atomic_long_add_return((i), (&(l)->a))
+#define local_sub_return(i, l) atomic_long_sub_return((i), (&(l)->a))
+#define local_inc_return(l) atomic_long_inc_return(&(l)->a)
+
+#define local_cmpxchg(l, old, new) atomic_long_cmpxchg((&(l)->a), (old), (new))
+#define local_xchg(l, new) atomic_long_xchg((&(l)->a), (new))
+#define local_add_unless(l, a, u) atomic_long_add_unless((&(l)->a), (a), (u))
+#define local_inc_not_zero(l) atomic_long_inc_not_zero(&(l)->a)
+
/* Non-atomic variants, ie. preemption disabled and won't be touched
* in interrupt, etc. Some archs can optimize this case well. */
#define __local_inc(l) local_set((l), local_read(l) + 1)
@@ -44,19 +57,19 @@ typedef struct
* much more efficient than these naive implementations. Note they take
* a variable (eg. mystruct.foo), not an address.
*/
-#define cpu_local_read(v) local_read(&__get_cpu_var(v))
-#define cpu_local_set(v, i) local_set(&__get_cpu_var(v), (i))
-#define cpu_local_inc(v) local_inc(&__get_cpu_var(v))
-#define cpu_local_dec(v) local_dec(&__get_cpu_var(v))
-#define cpu_local_add(i, v) local_add((i), &__get_cpu_var(v))
-#define cpu_local_sub(i, v) local_sub((i), &__get_cpu_var(v))
+#define cpu_local_read(l) local_read(&__get_cpu_var(l))
+#define cpu_local_set(l, i) local_set(&__get_cpu_var(l), (i))
+#define cpu_local_inc(l) local_inc(&__get_cpu_var(l))
+#define cpu_local_dec(l) local_dec(&__get_cpu_var(l))
+#define cpu_local_add(i, l) local_add((i), &__get_cpu_var(l))
+#define cpu_local_sub(i, l) local_sub((i), &__get_cpu_var(l))
/* Non-atomic increments, ie. preemption disabled and won't be touched
* in interrupt, etc. Some archs can optimize this case well.
*/
-#define __cpu_local_inc(v) __local_inc(&__get_cpu_var(v))
-#define __cpu_local_dec(v) __local_dec(&__get_cpu_var(v))
-#define __cpu_local_add(i, v) __local_add((i), &__get_cpu_var(v))
-#define __cpu_local_sub(i, v) __local_sub((i), &__get_cpu_var(v))
+#define __cpu_local_inc(l) __local_inc(&__get_cpu_var(l))
+#define __cpu_local_dec(l) __local_dec(&__get_cpu_var(l))
+#define __cpu_local_add(i, l) __local_add((i), &__get_cpu_var(l))
+#define __cpu_local_sub(i, l) __local_sub((i), &__get_cpu_var(l))
#endif /* _ASM_GENERIC_LOCAL_H */
-
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