Vineet Gupta 1097163870 ARCv2: spinlock/rwlock/atomics: reduce 1 instruction in exponential backoff ...

The increment of delay counter was 2 instructions:
Arithmatic Shfit Left (ASL) + set to 1 on overflow

This can be done in 1 using ROtate Left (ROL)

Suggested-by: Nigel Topham <[email protected]>
Cc: Peter Zijlstra (Intel) <[email protected]>
Cc: [email protected]
Signed-off-by: Vineet Gupta <[email protected]>

2015-08-07 13:56:16 +05:30

..

asm

ARCv2: spinlock/rwlock/atomics: reduce 1 instruction in exponential backoff

2015-08-07 13:56:16 +05:30

uapi/asm

ARC: Make pt_regs regs unsigned

2015-08-05 11:48:21 +05:30