diff options
Diffstat (limited to 'arch/arc/include/asm/spinlock_types.h')
-rw-r--r-- | arch/arc/include/asm/spinlock_types.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/arc/include/asm/spinlock_types.h b/arch/arc/include/asm/spinlock_types.h index 8276bfd61704..662627ced4f2 100644 --- a/arch/arc/include/asm/spinlock_types.h +++ b/arch/arc/include/asm/spinlock_types.h @@ -20,9 +20,9 @@ typedef struct { #define __ARCH_SPIN_LOCK_LOCKED { __ARCH_SPIN_LOCK_LOCKED__ } /* - * Unlocked: 0x01_00_00_00 - * Read lock(s): 0x00_FF_00_00 to say 0x01 - * Write lock: 0x0, but only possible if prior value "unlocked" 0x0100_0000 + * Unlocked : 0x0100_0000 + * Read lock(s) : 0x00FF_FFFF to 0x01 (Multiple Readers decrement it) + * Write lock : 0x0, but only if prior value is "unlocked" 0x0100_0000 */ typedef struct { volatile unsigned int counter; |