diff options
| author | Ralf Baechle | 2008-08-28 16:17:49 +0200 |
|---|---|---|
| committer | Ralf Baechle | 2008-10-11 17:18:54 +0200 |
| commit | 2a31b03335e570dce5fdd082e0d71d48b2cb4290 (patch) | |
| tree | 17c691e8f53874eb309fa8ed9ed14f65167247d2 /arch/mips/include/asm/spinlock_types.h | |
| parent | MIPS: IP checksums: Optimize adjust of sum on buffers of odd alignment. (diff) | |
| download | kernel-qcow2-linux-2a31b03335e570dce5fdd082e0d71d48b2cb4290.tar.gz kernel-qcow2-linux-2a31b03335e570dce5fdd082e0d71d48b2cb4290.tar.xz kernel-qcow2-linux-2a31b03335e570dce5fdd082e0d71d48b2cb4290.zip | |
MIPS: Rewrite spinlocks to ticket locks.
Based on patch by Chad Reese of Cavium Networks.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/include/asm/spinlock_types.h')
| -rw-r--r-- | arch/mips/include/asm/spinlock_types.h | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/arch/mips/include/asm/spinlock_types.h b/arch/mips/include/asm/spinlock_types.h index ce26c5048b15..adeedaa116c1 100644 --- a/arch/mips/include/asm/spinlock_types.h +++ b/arch/mips/include/asm/spinlock_types.h @@ -6,7 +6,12 @@ #endif typedef struct { - volatile unsigned int lock; + /* + * bits 0..13: serving_now + * bits 14 : junk data + * bits 15..28: ticket + */ + unsigned int lock; } raw_spinlock_t; #define __RAW_SPIN_LOCK_UNLOCKED { 0 } |