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authorDan Williams <dan.j.williams@intel.com>2010-05-17 16:30:58 -0700
committerDan Williams <dan.j.williams@intel.com>2010-05-17 16:30:58 -0700
commit0b28330e39bbe0ffee4c56b09fc415fcec595ea3 (patch)
treefcf504879883763557e696eff81427b1ab78f76b /lib/lcm.c
parent058276303dbc4ed089c1f7dad0871810b1f5ddf1 (diff)
parentcaa20d974c86af496b419eef70010e63b7fab7ac (diff)
Merge branch 'ioat' into dmaengine
Diffstat (limited to 'lib/lcm.c')
-rw-r--r--lib/lcm.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/lib/lcm.c b/lib/lcm.c
new file mode 100644
index 00000000000..157cd88a6ff
--- /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);