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authorJosé Pekkarinen <jose.pekkarinen@nokia.com>2016-04-11 10:41:07 +0300
committerJosé Pekkarinen <jose.pekkarinen@nokia.com>2016-04-13 08:17:18 +0300
commite09b41010ba33a20a87472ee821fa407a5b8da36 (patch)
treed10dc367189862e7ca5c592f033dc3726e1df4e3 /kernel/include/asm-generic/atomic.h
parentf93b97fd65072de626c074dbe099a1fff05ce060 (diff)
These changes are the raw update to linux-4.4.6-rt14. Kernel sources
are taken from kernel.org, and rt patch from the rt wiki download page. During the rebasing, the following patch collided: Force tick interrupt and get rid of softirq magic(I70131fb85). Collisions have been removed because its logic was found on the source already. Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769 Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to 'kernel/include/asm-generic/atomic.h')
-rw-r--r--kernel/include/asm-generic/atomic.h15
1 files changed, 8 insertions, 7 deletions
diff --git a/kernel/include/asm-generic/atomic.h b/kernel/include/asm-generic/atomic.h
index 1973ad2b1..74f1a3704 100644
--- a/kernel/include/asm-generic/atomic.h
+++ b/kernel/include/asm-generic/atomic.h
@@ -98,15 +98,16 @@ ATOMIC_OP_RETURN(add, +)
ATOMIC_OP_RETURN(sub, -)
#endif
-#ifndef atomic_clear_mask
+#ifndef atomic_and
ATOMIC_OP(and, &)
-#define atomic_clear_mask(i, v) atomic_and(~(i), (v))
#endif
-#ifndef atomic_set_mask
-#define CONFIG_ARCH_HAS_ATOMIC_OR
+#ifndef atomic_or
ATOMIC_OP(or, |)
-#define atomic_set_mask(i, v) atomic_or((i), (v))
+#endif
+
+#ifndef atomic_xor
+ATOMIC_OP(xor, ^)
#endif
#undef ATOMIC_OP_RETURN
@@ -126,7 +127,7 @@ ATOMIC_OP(or, |)
* Atomically reads the value of @v.
*/
#ifndef atomic_read
-#define atomic_read(v) ACCESS_ONCE((v)->counter)
+#define atomic_read(v) READ_ONCE((v)->counter)
#endif
/**
@@ -136,7 +137,7 @@ ATOMIC_OP(or, |)
*
* Atomically sets the value of @v to @i.
*/
-#define atomic_set(v, i) (((v)->counter) = (i))
+#define atomic_set(v, i) WRITE_ONCE(((v)->counter), (i))
#include <linux/irqflags.h>