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[PATCH] cpumask: uninline first_cpu()

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text    data     bss     dec     hex filename
before: 3490577 1322408  360000 5172985  4eeef9 vmlinux
after:  3488027 1322496  360128 5170651  4ee5db vmlinux

Cc: Paul Jackson <pj@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Andrew Morton 2006-03-25 03:08:08 -08:00 committed by Linus Torvalds
parent 64b9137943
commit ccb46000f4
3 changed files with 19 additions and 5 deletions
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11
include/linux/cpumask.h
View file

@ -212,11 +212,12 @@ static inline void __cpus_shift_left(cpumask_t *dstp,
bitmap_shift_left(dstp->bits, srcp->bits, n, nbits);
}
#define first_cpu(src) __first_cpu(&(src), NR_CPUS)
static inline int __first_cpu(const cpumask_t *srcp, int nbits)
{
return min_t(int, nbits, find_first_bit(srcp->bits, nbits));
}
#ifdef CONFIG_SMP
int __first_cpu(const cpumask_t *srcp);
#define first_cpu(src) __first_cpu(&(src))
#else
#define first_cpu(src) 0
#endif
#define next_cpu(n, src) __next_cpu((n), &(src), NR_CPUS)
static inline int __next_cpu(int n, const cpumask_t *srcp, int nbits)

2
lib/Makefile
View file

@ -7,6 +7,8 @@ lib-y := errno.o ctype.o string.o vsprintf.o cmdline.o \
idr.o div64.o int_sqrt.o bitmap.o extable.o prio_tree.o \
sha1.o
lib-$(CONFIG_SMP) += cpumask.o
lib-y += kobject.o kref.o kobject_uevent.o klist.o
obj-y += sort.o parser.o halfmd4.o iomap_copy.o

11
lib/cpumask.c Normal file
View file

@ -0,0 +1,11 @@
#include <linux/kernel.h>
#include <linux/bitops.h>
#include <linux/cpumask.h>
#include <linux/module.h>
int __first_cpu(const cpumask_t *srcp)
{
return min_t(int, NR_CPUS, find_first_bit(srcp->bits, NR_CPUS));
}
EXPORT_SYMBOL(__first_cpu);