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author | Jens Axboe <jens.axboe@oracle.com> | 2010-04-02 10:43:33 +0400 |
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committer | Jens Axboe <jens.axboe@oracle.com> | 2010-04-02 10:43:33 +0400 |
commit | ed6b6dc7c142bfb5840d201a9b4a465c9e56ce33 (patch) | |
tree | 538a3ec7ba62f5e668be7f0bd681857c1bd73da2 /lib | |
parent | 2eaa9cfdf33b8d7fb7aff27792192e0019ae8fc6 (diff) | |
parent | a506aedc51093544ff0f9610af6066d18cb6abbe (diff) | |
download | linux-ed6b6dc7c142bfb5840d201a9b4a465c9e56ce33.tar.xz |
Merge branch 'for-linus' into for-2.6.35
Diffstat (limited to 'lib')
-rw-r--r-- | lib/Makefile | 2 | ||||
-rw-r--r-- | lib/lcm.c | 15 |
2 files changed, 16 insertions, 1 deletions
diff --git a/lib/Makefile b/lib/Makefile index 2e152aed7198..0d4015205c64 100644 --- a/lib/Makefile +++ b/lib/Makefile @@ -21,7 +21,7 @@ lib-y += kobject.o kref.o klist.o obj-y += bcd.o div64.o sort.o parser.o halfmd4.o debug_locks.o random32.o \ bust_spinlocks.o hexdump.o kasprintf.o bitmap.o scatterlist.o \ - string_helpers.o gcd.o list_sort.o + string_helpers.o gcd.o lcm.o list_sort.o ifeq ($(CONFIG_DEBUG_KOBJECT),y) CFLAGS_kobject.o += -DDEBUG diff --git a/lib/lcm.c b/lib/lcm.c new file mode 100644 index 000000000000..157cd88a6ffc --- /dev/null +++ b/lib/lcm.c @@ -0,0 +1,15 @@ +#include <linux/kernel.h> +#include <linux/gcd.h> +#include <linux/module.h> + +/* Lowest common multiple */ +unsigned long lcm(unsigned long a, unsigned long b) +{ + if (a && b) + return (a * b) / gcd(a, b); + else if (b) + return b; + + return a; +} +EXPORT_SYMBOL_GPL(lcm); |