Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic:
  add generic lib/checksum.c
  asm-generic: add a generic uaccess.h
  asm-generic: add generic NOMMU versions of some headers
  asm-generic: add generic atomic.h and io.h
  asm-generic: add legacy I/O header files
  asm-generic: add generic versions of common headers
  asm-generic: make bitops.h usable
  asm-generic: make pci.h usable directly
  asm-generic: make get_rtc_time overridable
  asm-generic: rename page.h and uaccess.h
  asm-generic: rename atomic.h to atomic-long.h
  asm-generic: add a generic unistd.h
  asm-generic: add generic ABI headers
  asm-generic: add generic sysv ipc headers
  asm-generic: introduce asm/bitsperlong.h
  asm-generic: rename termios.h, signal.h and mman.h

1 files changed, 24 insertions, 0 deletions

diff --git a/include/asm-generic/getorder.h b/include/asm-generic/getorder.h
new file mode 100644
index 00000000000..67e7245dc9b
--- /dev/null
+++ b/include/asm-generic/getorder.h
@@ -0,0 +1,24 @@
+#ifndef __ASM_GENERIC_GETORDER_H
+#define __ASM_GENERIC_GETORDER_H
+
+#ifndef __ASSEMBLY__
+
+#include <linux/compiler.h>
+
+/* Pure 2^n version of get_order */
+static inline __attribute_const__ int get_order(unsigned long size)
+{
+	int order;
+
+	size = (size - 1) >> (PAGE_SHIFT - 1);
+	order = -1;
+	do {
+		size >>= 1;
+		order++;
+	} while (size);
+	return order;
+}
+
+#endif	/* __ASSEMBLY__ */
+
+#endif	/* __ASM_GENERIC_GETORDER_H */