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SubjectRe: [PATCH] Fix CPU bitmask truncation
FromAndreas Schwab <>
DateFri, 20 Dec 2002 13:17:24 +0100
William Lee Irwin III <wli@holomorphy.com> writes:

|> ===== include/linux/init_task.h 1.19 vs edited =====
|> --- 1.19/include/linux/init_task.h	Sun Sep 29 07:02:55 2002
|> +++ edited/include/linux/init_task.h	Fri Dec 20 02:22:04 2002
|> @@ -63,7 +63,7 @@
|>  	.prio		= MAX_PRIO-20,					\
|>  	.static_prio	= MAX_PRIO-20,					\
|>  	.policy		= SCHED_NORMAL,					\
|> -	.cpus_allowed	= -1,						\
|> +	.cpus_allowed	= ~0UL,						\

This is useless.  Assigning -1 to any unsigned type is garanteed to give
you all bits one, and with two's complement this also holds for any signed
type.

Andreas.

-- 
Andreas Schwab, SuSE Labs, schwab@suse.de
SuSE Linux AG, Deutschherrnstr. 15-19, D-90429 Nürnberg
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