1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
  2
  3#ifndef _LINUX_F2FS_H
  4#define _LINUX_F2FS_H
  5#include <linux/types.h>
  6#include <linux/ioctl.h>
  7
  8/*
  9 * f2fs-specific ioctl commands
 10 */
 11#define F2FS_IOCTL_MAGIC		0xf5
 12#define F2FS_IOC_START_ATOMIC_WRITE	_IO(F2FS_IOCTL_MAGIC, 1)
 13#define F2FS_IOC_COMMIT_ATOMIC_WRITE	_IO(F2FS_IOCTL_MAGIC, 2)
 14#define F2FS_IOC_START_VOLATILE_WRITE	_IO(F2FS_IOCTL_MAGIC, 3)
 15#define F2FS_IOC_RELEASE_VOLATILE_WRITE	_IO(F2FS_IOCTL_MAGIC, 4)
 16#define F2FS_IOC_ABORT_ATOMIC_WRITE	_IO(F2FS_IOCTL_MAGIC, 5)
 17#define F2FS_IOC_GARBAGE_COLLECT	_IOW(F2FS_IOCTL_MAGIC, 6, __u32)
 18#define F2FS_IOC_WRITE_CHECKPOINT	_IO(F2FS_IOCTL_MAGIC, 7)
 19#define F2FS_IOC_DEFRAGMENT		_IOWR(F2FS_IOCTL_MAGIC, 8,	\
 20						struct f2fs_defragment)
 21#define F2FS_IOC_MOVE_RANGE		_IOWR(F2FS_IOCTL_MAGIC, 9,	\
 22						struct f2fs_move_range)
 23#define F2FS_IOC_FLUSH_DEVICE		_IOW(F2FS_IOCTL_MAGIC, 10,	\
 24						struct f2fs_flush_device)
 25#define F2FS_IOC_GARBAGE_COLLECT_RANGE	_IOW(F2FS_IOCTL_MAGIC, 11,	\
 26						struct f2fs_gc_range)
 27#define F2FS_IOC_GET_FEATURES		_IOR(F2FS_IOCTL_MAGIC, 12, __u32)
 28#define F2FS_IOC_SET_PIN_FILE		_IOW(F2FS_IOCTL_MAGIC, 13, __u32)
 29#define F2FS_IOC_GET_PIN_FILE		_IOR(F2FS_IOCTL_MAGIC, 14, __u32)
 30#define F2FS_IOC_PRECACHE_EXTENTS	_IO(F2FS_IOCTL_MAGIC, 15)
 31#define F2FS_IOC_RESIZE_FS		_IOW(F2FS_IOCTL_MAGIC, 16, __u64)
 32#define F2FS_IOC_GET_COMPRESS_BLOCKS	_IOR(F2FS_IOCTL_MAGIC, 17, __u64)
 33#define F2FS_IOC_RELEASE_COMPRESS_BLOCKS				\
 34					_IOR(F2FS_IOCTL_MAGIC, 18, __u64)
 35#define F2FS_IOC_RESERVE_COMPRESS_BLOCKS				\
 36					_IOR(F2FS_IOCTL_MAGIC, 19, __u64)
 37#define F2FS_IOC_SEC_TRIM_FILE		_IOW(F2FS_IOCTL_MAGIC, 20,	\
 38						struct f2fs_sectrim_range)
 39#define F2FS_IOC_GET_COMPRESS_OPTION	_IOR(F2FS_IOCTL_MAGIC, 21,	\
 40						struct f2fs_comp_option)
 41#define F2FS_IOC_SET_COMPRESS_OPTION	_IOW(F2FS_IOCTL_MAGIC, 22,	\
 42						struct f2fs_comp_option)
 43#define F2FS_IOC_DECOMPRESS_FILE	_IO(F2FS_IOCTL_MAGIC, 23)
 44#define F2FS_IOC_COMPRESS_FILE		_IO(F2FS_IOCTL_MAGIC, 24)
 45#define F2FS_IOC_START_ATOMIC_REPLACE	_IO(F2FS_IOCTL_MAGIC, 25)
 46#define F2FS_IOC_GET_DEV_ALIAS_FILE	_IOR(F2FS_IOCTL_MAGIC, 26, __u32)
 47#define F2FS_IOC_IO_PRIO		_IOW(F2FS_IOCTL_MAGIC, 27, __u32)
 48
 49/*
 50 * should be same as XFS_IOC_GOINGDOWN.
 51 * Flags for going down operation used by FS_IOC_GOINGDOWN
 52 */
 53#define F2FS_IOC_SHUTDOWN	_IOR('X', 125, __u32)	/* Shutdown */
 54#define F2FS_GOING_DOWN_FULLSYNC	0x0	/* going down with full sync */
 55#define F2FS_GOING_DOWN_METASYNC	0x1	/* going down with metadata */
 56#define F2FS_GOING_DOWN_NOSYNC		0x2	/* going down */
 57#define F2FS_GOING_DOWN_METAFLUSH	0x3	/* going down with meta flush */
 58#define F2FS_GOING_DOWN_NEED_FSCK	0x4	/* going down to trigger fsck */
 59
 60/*
 61 * Flags used by F2FS_IOC_SEC_TRIM_FILE
 62 */
 63#define F2FS_TRIM_FILE_DISCARD		0x1	/* send discard command */
 64#define F2FS_TRIM_FILE_ZEROOUT		0x2	/* zero out */
 65#define F2FS_TRIM_FILE_MASK		0x3
 66
 67/* for F2FS_IOC_IO_PRIO */
 68enum {
 69	F2FS_IOPRIO_WRITE = 1,	/* high write priority */
 70	F2FS_IOPRIO_MAX,
 71};
 72
 73struct f2fs_gc_range {
 74	__u32 sync;
 75	__u64 start;
 76	__u64 len;
 77};
 78
 79struct f2fs_defragment {
 80	__u64 start;
 81	__u64 len;
 82};
 83
 84struct f2fs_move_range {
 85	__u32 dst_fd;		/* destination fd */
 86	__u64 pos_in;		/* start position in src_fd */
 87	__u64 pos_out;		/* start position in dst_fd */
 88	__u64 len;		/* size to move */
 89};
 90
 91struct f2fs_flush_device {
 92	__u32 dev_num;		/* device number to flush */
 93	__u32 segments;		/* # of segments to flush */
 94};
 95
 96struct f2fs_sectrim_range {
 97	__u64 start;
 98	__u64 len;
 99	__u64 flags;
100};
101
102struct f2fs_comp_option {
103	__u8 algorithm;
104	__u8 log_cluster_size;
105};
106
107#endif /* _LINUX_F2FS_H */