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#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 /* _UAPI_LINUX_F2FS_H */
108

source code of linux/include/uapi/linux/f2fs.h

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