LXR linux/include/uapi/linux/f2fs.h

   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_VOLATILE_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
  46/*
  47 * should be same as XFS_IOC_GOINGDOWN.
  48 * Flags for going down operation used by FS_IOC_GOINGDOWN
  49 */
  50#define F2FS_IOC_SHUTDOWN       _IOR('X', 125, __u32)   /* Shutdown */
  51#define F2FS_GOING_DOWN_FULLSYNC        0x0     /* going down with full sync */
  52#define F2FS_GOING_DOWN_METASYNC        0x1     /* going down with metadata */
  53#define F2FS_GOING_DOWN_NOSYNC          0x2     /* going down */
  54#define F2FS_GOING_DOWN_METAFLUSH       0x3     /* going down with meta flush */
  55#define F2FS_GOING_DOWN_NEED_FSCK       0x4     /* going down to trigger fsck */
  56
  57/*
  58 * Flags used by F2FS_IOC_SEC_TRIM_FILE
  59 */
  60#define F2FS_TRIM_FILE_DISCARD          0x1     /* send discard command */
  61#define F2FS_TRIM_FILE_ZEROOUT          0x2     /* zero out */
  62#define F2FS_TRIM_FILE_MASK             0x3
  63
  64struct f2fs_gc_range {
  65        __u32 sync;
  66        __u64 start;
  67        __u64 len;
  68};
  69
  70struct f2fs_defragment {
  71        __u64 start;
  72        __u64 len;
  73};
  74
  75struct f2fs_move_range {
  76        __u32 dst_fd;           /* destination fd */
  77        __u64 pos_in;           /* start position in src_fd */
  78        __u64 pos_out;          /* start position in dst_fd */
  79        __u64 len;              /* size to move */
  80};
  81
  82struct f2fs_flush_device {
  83        __u32 dev_num;          /* device number to flush */
  84        __u32 segments;         /* # of segments to flush */
  85};
  86
  87struct f2fs_sectrim_range {
  88        __u64 start;
  89        __u64 len;
  90        __u64 flags;
  91};
  92
  93struct f2fs_comp_option {
  94        __u8 algorithm;
  95        __u8 log_cluster_size;
  96};
  97
  98#endif /* _UAPI_LINUX_F2FS_H */
  99