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(I'm so sorry!) Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel os linux
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12345678910111213141516/* SPDX-License-Identifier: GPL-2.0 */#ifndef _LINUX_PFN_H_#define _LINUX_PFN_H_
#ifndef __ASSEMBLER__#include <linux/types.h>#endif
#define PFN_ALIGN(x) (((unsigned long)(x) + (PAGE_SIZE - 1)) & PAGE_MASK)#define PFN_UP(x) (((x) + PAGE_SIZE-1) >> PAGE_SHIFT)#define PFN_DOWN(x) ((x) >> PAGE_SHIFT)#define PFN_PHYS(x) ((phys_addr_t)(x) << PAGE_SHIFT)#define PHYS_PFN(x) ((unsigned long)((x) >> PAGE_SHIFT))
#endif