x86: fix percpu_write with 64-bit constants

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Impact: slightly better code generation for percpu_to_op()

The processor will sign-extend 32-bit immediate values in 64-bit
operations.  Use the 'e' constraint ("32-bit signed integer constant,
or a symbolic reference known to fit that range") for 64-bit constants.

Signed-off-by: Brian Gerst <brgerst@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>

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Brian Gerst 2009-01-21 17:26:05 +09:00 • committed by Tejun Heo

parent 06deef892c

commit 299e26992a

1 changed files with 1 additions and 1 deletions

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arch/x86/include/asm/percpu.h

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