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| author | David S. Miller <davem@davemloft.net> | 2011-09-22 03:23:13 -0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-09-22 03:23:13 -0400 |
| commit | 8decf868790b48a727d7e7ca164f2bcd3c1389c0 (patch) | |
| tree | b759a5f861f842af7ea76f9011b579d06e9d5508 /arch/sparc/include/asm/spinlock_32.h | |
| parent | 3fc72370186be2f9d4d6ef06d99e1caa5d92c564 (diff) | |
| parent | d93dc5c4478c1fd5de85a3e8aece9aad7bbae044 (diff) | |
| download | linux-8decf868790b48a727d7e7ca164f2bcd3c1389c0.tar.bz2 | |
Merge branch 'master' of github.com:davem330/net
Conflicts:
MAINTAINERS
drivers/net/Kconfig
drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c
drivers/net/ethernet/broadcom/tg3.c
drivers/net/wireless/iwlwifi/iwl-pci.c
drivers/net/wireless/iwlwifi/iwl-trans-tx-pcie.c
drivers/net/wireless/rt2x00/rt2800usb.c
drivers/net/wireless/wl12xx/main.c
Diffstat (limited to 'arch/sparc/include/asm/spinlock_32.h')
| -rw-r--r-- | arch/sparc/include/asm/spinlock_32.h | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/arch/sparc/include/asm/spinlock_32.h b/arch/sparc/include/asm/spinlock_32.h index 5f5b8bf3f50d..bcc98fc35281 100644 --- a/arch/sparc/include/asm/spinlock_32.h +++ b/arch/sparc/include/asm/spinlock_32.h @@ -131,6 +131,15 @@ static inline void arch_write_lock(arch_rwlock_t *rw) *(volatile __u32 *)&lp->lock = ~0U; } +static void inline arch_write_unlock(arch_rwlock_t *lock) +{ + __asm__ __volatile__( +" st %%g0, [%0]" + : /* no outputs */ + : "r" (lock) + : "memory"); +} + static inline int arch_write_trylock(arch_rwlock_t *rw) { unsigned int val; @@ -175,8 +184,6 @@ static inline int __arch_read_trylock(arch_rwlock_t *rw) res; \ }) -#define arch_write_unlock(rw) do { (rw)->lock = 0; } while(0) - #define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock) #define arch_read_lock_flags(rw, flags) arch_read_lock(rw) #define arch_write_lock_flags(rw, flags) arch_write_lock(rw) |