mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-23 04:34:11 +08:00
5b17e1cd89
The current asm-generic/page.h only contains the get_order function, and asm-generic/uaccess.h only implements unaligned accesses. This renames the file to getorder.h and uaccess-unaligned.h to make room for new page.h and uaccess.h file that will be usable by all simple (e.g. nommu) architectures. Signed-off-by: Remis Lima Baima <remis.developer@googlemail.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
25 lines
421 B
C
25 lines
421 B
C
#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 */
|