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authorDmitry Torokhov <dmitry.torokhov@gmail.com>2009-09-13 21:16:56 -0700
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2009-09-13 21:16:56 -0700
commitfc8e1ead9314cf0e0f1922e661428b93d3a50d88 (patch)
treef3cb97c4769b74f6627a59769f1ed5c92a13c58a /lib/gcd.c
parent2bcaa6a4238094c5695d5b1943078388d82d3004 (diff)
parent9de48cc300fb10f7d9faa978670becf5e352462a (diff)
Merge branch 'next' into for-linus
Diffstat (limited to 'lib/gcd.c')
-rw-r--r--lib/gcd.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/lib/gcd.c b/lib/gcd.c
new file mode 100644
index 000000000000..f879033d9822
--- /dev/null
+++ b/lib/gcd.c
@@ -0,0 +1,18 @@
+#include <linux/kernel.h>
+#include <linux/gcd.h>
+#include <linux/module.h>
+
+/* Greatest common divisor */
+unsigned long gcd(unsigned long a, unsigned long b)
+{
+ unsigned long r;
+
+ if (a < b)
+ swap(a, b);
+ while ((r = a % b) != 0) {
+ a = b;
+ b = r;
+ }
+ return b;
+}
+EXPORT_SYMBOL_GPL(gcd);