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authorThomas Gleixner <tglx@linutronix.de>2011-01-26 20:05:56 +0000
committerThomas Gleixner <tglx@linutronix.de>2011-01-27 12:30:39 +0100
commit1c8ed640d918290ddc1de5ada02ef6686a733c9f (patch)
treec824e72ff857b68d992fd7cc24810b472d030cd1 /arch/xtensa/include
parentbde11efbc21ea84c3351464a422b467eaefabb9a (diff)
downloadlinux-1c8ed640d918290ddc1de5ada02ef6686a733c9f.tar.gz
rwsem: Move duplicate struct rwsem declaration to linux/rwsem.h
The difference between these declarations is the data type of the count member and the lack of lockdep in some architectures/ long is equivivalent to signed long and the #ifdef guarded dep_map member does not hurt anyone. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: David Howells <dhowells@redhat.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Matt Turner <mattst88@gmail.com> Acked-by: Tony Luck <tony.luck@intel.com> Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Paul Mundt <lethal@linux-sh.org> Acked-by: David Miller <davem@davemloft.net> Cc: Chris Zankel <chris@zankel.net> LKML-Reference: <20110126195833.679641914@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/xtensa/include')
-rw-r--r--arch/xtensa/include/asm/rwsem.h9
1 files changed, 1 insertions, 8 deletions
diff --git a/arch/xtensa/include/asm/rwsem.h b/arch/xtensa/include/asm/rwsem.h
index 1be2102c648..585cab9b0bd 100644
--- a/arch/xtensa/include/asm/rwsem.h
+++ b/arch/xtensa/include/asm/rwsem.h
@@ -16,20 +16,13 @@
#ifndef _LINUX_RWSEM_H
#error "Please don't include <asm/rwsem.h> directly, use <linux/rwsem.h> instead."
#endif
-/*
- * the semaphore definition
- */
-struct rw_semaphore {
- signed long count;
+
#define RWSEM_UNLOCKED_VALUE 0x00000000
#define RWSEM_ACTIVE_BIAS 0x00000001
#define RWSEM_ACTIVE_MASK 0x0000ffff
#define RWSEM_WAITING_BIAS (-0x00010000)
#define RWSEM_ACTIVE_READ_BIAS RWSEM_ACTIVE_BIAS
#define RWSEM_ACTIVE_WRITE_BIAS (RWSEM_WAITING_BIAS + RWSEM_ACTIVE_BIAS)
- spinlock_t wait_lock;
- struct list_head wait_list;
-};
#define __RWSEM_INITIALIZER(name) \
{ RWSEM_UNLOCKED_VALUE, __SPIN_LOCK_UNLOCKED((name).wait_lock), \