Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/arch/x86_64/lib/bitstr.c b/arch/x86_64/lib/bitstr.c
new file mode 100644
index 0000000..2467660
--- /dev/null
+++ b/arch/x86_64/lib/bitstr.c
@@ -0,0 +1,28 @@
+#include <linux/module.h>
+#include <linux/bitops.h>
+
+/* Find string of zero bits in a bitmap */
+unsigned long
+find_next_zero_string(unsigned long *bitmap, long start, long nbits, int len)
+{
+ unsigned long n, end, i;
+
+ again:
+ n = find_next_zero_bit(bitmap, nbits, start);
+ if (n == -1)
+ return -1;
+
+ /* could test bitsliced, but it's hardly worth it */
+ end = n+len;
+ if (end >= nbits)
+ return -1;
+ for (i = n+1; i < end; i++) {
+ if (test_bit(i, bitmap)) {
+ start = i+1;
+ goto again;
+ }
+ }
+ return n;
+}
+
+EXPORT_SYMBOL(find_next_zero_string);