uapi/linux/f2fs.h

0001 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
0002
0003 #ifndef _UAPI_LINUX_F2FS_H
0004 #define _UAPI_LINUX_F2FS_H
0005 #include <linux/types.h>
0006 #include <linux/ioctl.h>
0007
0008 /*
0009  * f2fs-specific ioctl commands
0010  */
0011 #define F2FS_IOCTL_MAGIC        0xf5
0012 #define F2FS_IOC_START_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 1)
0013 #define F2FS_IOC_COMMIT_ATOMIC_WRITE    _IO(F2FS_IOCTL_MAGIC, 2)
0014 #define F2FS_IOC_START_VOLATILE_WRITE   _IO(F2FS_IOCTL_MAGIC, 3)
0015 #define F2FS_IOC_RELEASE_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 4)
0016 #define F2FS_IOC_ABORT_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 5)
0017 #define F2FS_IOC_GARBAGE_COLLECT    _IOW(F2FS_IOCTL_MAGIC, 6, __u32)
0018 #define F2FS_IOC_WRITE_CHECKPOINT   _IO(F2FS_IOCTL_MAGIC, 7)
0019 #define F2FS_IOC_DEFRAGMENT     _IOWR(F2FS_IOCTL_MAGIC, 8,  \
0020                         struct f2fs_defragment)
0021 #define F2FS_IOC_MOVE_RANGE     _IOWR(F2FS_IOCTL_MAGIC, 9,  \
0022                         struct f2fs_move_range)
0023 #define F2FS_IOC_FLUSH_DEVICE       _IOW(F2FS_IOCTL_MAGIC, 10,  \
0024                         struct f2fs_flush_device)
0025 #define F2FS_IOC_GARBAGE_COLLECT_RANGE  _IOW(F2FS_IOCTL_MAGIC, 11,  \
0026                         struct f2fs_gc_range)
0027 #define F2FS_IOC_GET_FEATURES       _IOR(F2FS_IOCTL_MAGIC, 12, __u32)
0028 #define F2FS_IOC_SET_PIN_FILE       _IOW(F2FS_IOCTL_MAGIC, 13, __u32)
0029 #define F2FS_IOC_GET_PIN_FILE       _IOR(F2FS_IOCTL_MAGIC, 14, __u32)
0030 #define F2FS_IOC_PRECACHE_EXTENTS   _IO(F2FS_IOCTL_MAGIC, 15)
0031 #define F2FS_IOC_RESIZE_FS      _IOW(F2FS_IOCTL_MAGIC, 16, __u64)
0032 #define F2FS_IOC_GET_COMPRESS_BLOCKS    _IOR(F2FS_IOCTL_MAGIC, 17, __u64)
0033 #define F2FS_IOC_RELEASE_COMPRESS_BLOCKS                \
0034                     _IOR(F2FS_IOCTL_MAGIC, 18, __u64)
0035 #define F2FS_IOC_RESERVE_COMPRESS_BLOCKS                \
0036                     _IOR(F2FS_IOCTL_MAGIC, 19, __u64)
0037 #define F2FS_IOC_SEC_TRIM_FILE      _IOW(F2FS_IOCTL_MAGIC, 20,  \
0038                         struct f2fs_sectrim_range)
0039 #define F2FS_IOC_GET_COMPRESS_OPTION    _IOR(F2FS_IOCTL_MAGIC, 21,  \
0040                         struct f2fs_comp_option)
0041 #define F2FS_IOC_SET_COMPRESS_OPTION    _IOW(F2FS_IOCTL_MAGIC, 22,  \
0042                         struct f2fs_comp_option)
0043 #define F2FS_IOC_DECOMPRESS_FILE    _IO(F2FS_IOCTL_MAGIC, 23)
0044 #define F2FS_IOC_COMPRESS_FILE      _IO(F2FS_IOCTL_MAGIC, 24)
0045
0046 /*
0047  * should be same as XFS_IOC_GOINGDOWN.
0048  * Flags for going down operation used by FS_IOC_GOINGDOWN
0049  */
0050 #define F2FS_IOC_SHUTDOWN   _IOR('X', 125, __u32)   /* Shutdown */
0051 #define F2FS_GOING_DOWN_FULLSYNC    0x0 /* going down with full sync */
0052 #define F2FS_GOING_DOWN_METASYNC    0x1 /* going down with metadata */
0053 #define F2FS_GOING_DOWN_NOSYNC      0x2 /* going down */
0054 #define F2FS_GOING_DOWN_METAFLUSH   0x3 /* going down with meta flush */
0055 #define F2FS_GOING_DOWN_NEED_FSCK   0x4 /* going down to trigger fsck */
0056
0057 /*
0058  * Flags used by F2FS_IOC_SEC_TRIM_FILE
0059  */
0060 #define F2FS_TRIM_FILE_DISCARD      0x1 /* send discard command */
0061 #define F2FS_TRIM_FILE_ZEROOUT      0x2 /* zero out */
0062 #define F2FS_TRIM_FILE_MASK     0x3
0063
0064 struct f2fs_gc_range {
0065     __u32 sync;
0066     __u64 start;
0067     __u64 len;
0068 };
0069
0070 struct f2fs_defragment {
0071     __u64 start;
0072     __u64 len;
0073 };
0074
0075 struct f2fs_move_range {
0076     __u32 dst_fd;       /* destination fd */
0077     __u64 pos_in;       /* start position in src_fd */
0078     __u64 pos_out;      /* start position in dst_fd */
0079     __u64 len;      /* size to move */
0080 };
0081
0082 struct f2fs_flush_device {
0083     __u32 dev_num;      /* device number to flush */
0084     __u32 segments;     /* # of segments to flush */
0085 };
0086
0087 struct f2fs_sectrim_range {
0088     __u64 start;
0089     __u64 len;
0090     __u64 flags;
0091 };
0092
0093 struct f2fs_comp_option {
0094     __u8 algorithm;
0095     __u8 log_cluster_size;
0096 };
0097
0098 #endif /* _UAPI_LINUX_F2FS_H */