xref: /linux/include/uapi/linux/f2fs.h (revision c34e9ab9a612ee8b18273398ef75c207b01f516d)
1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2 
3 #ifndef _UAPI_LINUX_F2FS_H
4 #define _UAPI_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 
48 /*
49  * should be same as XFS_IOC_GOINGDOWN.
50  * Flags for going down operation used by FS_IOC_GOINGDOWN
51  */
52 #define F2FS_IOC_SHUTDOWN	_IOR('X', 125, __u32)	/* Shutdown */
53 #define F2FS_GOING_DOWN_FULLSYNC	0x0	/* going down with full sync */
54 #define F2FS_GOING_DOWN_METASYNC	0x1	/* going down with metadata */
55 #define F2FS_GOING_DOWN_NOSYNC		0x2	/* going down */
56 #define F2FS_GOING_DOWN_METAFLUSH	0x3	/* going down with meta flush */
57 #define F2FS_GOING_DOWN_NEED_FSCK	0x4	/* going down to trigger fsck */
58 
59 /*
60  * Flags used by F2FS_IOC_SEC_TRIM_FILE
61  */
62 #define F2FS_TRIM_FILE_DISCARD		0x1	/* send discard command */
63 #define F2FS_TRIM_FILE_ZEROOUT		0x2	/* zero out */
64 #define F2FS_TRIM_FILE_MASK		0x3
65 
66 struct f2fs_gc_range {
67 	__u32 sync;
68 	__u64 start;
69 	__u64 len;
70 };
71 
72 struct f2fs_defragment {
73 	__u64 start;
74 	__u64 len;
75 };
76 
77 struct f2fs_move_range {
78 	__u32 dst_fd;		/* destination fd */
79 	__u64 pos_in;		/* start position in src_fd */
80 	__u64 pos_out;		/* start position in dst_fd */
81 	__u64 len;		/* size to move */
82 };
83 
84 struct f2fs_flush_device {
85 	__u32 dev_num;		/* device number to flush */
86 	__u32 segments;		/* # of segments to flush */
87 };
88 
89 struct f2fs_sectrim_range {
90 	__u64 start;
91 	__u64 len;
92 	__u64 flags;
93 };
94 
95 struct f2fs_comp_option {
96 	__u8 algorithm;
97 	__u8 log_cluster_size;
98 };
99 
100 #endif /* _UAPI_LINUX_F2FS_H */
101