diff options
| author | Andrew Morton <akpm@osdl.org> | 2006-03-25 03:08:08 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-03-25 08:22:59 -0800 |
| commit | ccb46000f4bb459777686611157ac0eac928704e (patch) | |
| tree | 461e956d9e27a7afa7de64950f3186070ffa61f5 | |
| parent | 64b91379439ff0fb007bde90eb496299c14a9b2a (diff) | |
| download | lwn-ccb46000f4bb459777686611157ac0eac928704e.tar.gz lwn-ccb46000f4bb459777686611157ac0eac928704e.zip | |
[PATCH] cpumask: uninline first_cpu()
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>
| -rw-r--r-- | include/linux/cpumask.h | 11 | ||||
| -rw-r--r-- | lib/Makefile | 2 | ||||
| -rw-r--r-- | lib/cpumask.c | 11 |
3 files changed, 19 insertions, 5 deletions
diff --git a/include/linux/cpumask.h b/include/linux/cpumask.h index 60e56c6e03dd..9b702fd24a72 100644 --- a/include/linux/cpumask.h +++ b/include/linux/cpumask.h @@ -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) diff --git a/lib/Makefile b/lib/Makefile index 648b2c1242fd..f827e3c24ec0 100644 --- a/lib/Makefile +++ b/lib/Makefile @@ -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 diff --git a/lib/cpumask.c b/lib/cpumask.c new file mode 100644 index 000000000000..1560d97390dd --- /dev/null +++ b/lib/cpumask.c @@ -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); + |