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(I'm so sorry!) Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel os linux
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef _UAPI_LINUX_EXT4_H#define _UAPI_LINUX_EXT4_H#include <linux/fiemap.h>#include <linux/fs.h>#include <linux/ioctl.h>#include <linux/types.h>
/* * ext4-specific ioctl commands */#define EXT4_IOC_GETVERSION _IOR('f', 3, long)#define EXT4_IOC_SETVERSION _IOW('f', 4, long)#define EXT4_IOC_GETVERSION_OLD FS_IOC_GETVERSION#define EXT4_IOC_SETVERSION_OLD FS_IOC_SETVERSION#define EXT4_IOC_GETRSVSZ _IOR('f', 5, long)#define EXT4_IOC_SETRSVSZ _IOW('f', 6, long)#define EXT4_IOC_GROUP_EXTEND _IOW('f', 7, unsigned long)#define EXT4_IOC_GROUP_ADD _IOW('f', 8, struct ext4_new_group_input)#define EXT4_IOC_MIGRATE _IO('f', 9) /* note ioctl 10 reserved for an early version of the FIEMAP ioctl */ /* note ioctl 11 reserved for filesystem-independent FIEMAP ioctl */#define EXT4_IOC_ALLOC_DA_BLKS _IO('f', 12)#define EXT4_IOC_MOVE_EXT _IOWR('f', 15, struct move_extent)#define EXT4_IOC_RESIZE_FS _IOW('f', 16, __u64)#define EXT4_IOC_SWAP_BOOT _IO('f', 17)#define EXT4_IOC_PRECACHE_EXTENTS _IO('f', 18)/* ioctl codes 19--39 are reserved for fscrypt */#define EXT4_IOC_CLEAR_ES_CACHE _IO('f', 40)#define EXT4_IOC_GETSTATE _IOW('f', 41, __u32)#define EXT4_IOC_GET_ES_CACHE _IOWR('f', 42, struct fiemap)#define EXT4_IOC_CHECKPOINT _IOW('f', 43, __u32)#define EXT4_IOC_GETFSUUID _IOR('f', 44, struct fsuuid)#define EXT4_IOC_SETFSUUID _IOW('f', 44, struct fsuuid)#define EXT4_IOC_GET_TUNE_SB_PARAM _IOR('f', 45, struct ext4_tune_sb_params)#define EXT4_IOC_SET_TUNE_SB_PARAM _IOW('f', 46, struct ext4_tune_sb_params)
#define EXT4_IOC_SHUTDOWN _IOR('X', 125, __u32)
/* * ioctl commands in 32 bit emulation */#define EXT4_IOC32_GETVERSION _IOR('f', 3, int)#define EXT4_IOC32_SETVERSION _IOW('f', 4, int)#define EXT4_IOC32_GETRSVSZ _IOR('f', 5, int)#define EXT4_IOC32_SETRSVSZ _IOW('f', 6, int)#define EXT4_IOC32_GROUP_EXTEND _IOW('f', 7, unsigned int)#define EXT4_IOC32_GROUP_ADD _IOW('f', 8, struct compat_ext4_new_group_input)#define EXT4_IOC32_GETVERSION_OLD FS_IOC32_GETVERSION#define EXT4_IOC32_SETVERSION_OLD FS_IOC32_SETVERSION
/* * Flags returned by EXT4_IOC_GETSTATE * * We only expose to userspace a subset of the state flags in * i_state_flags */#define EXT4_STATE_FLAG_EXT_PRECACHED 0x00000001#define EXT4_STATE_FLAG_NEW 0x00000002#define EXT4_STATE_FLAG_NEWENTRY 0x00000004#define EXT4_STATE_FLAG_DA_ALLOC_CLOSE 0x00000008
/* * Flags for ioctl EXT4_IOC_CHECKPOINT */#define EXT4_IOC_CHECKPOINT_FLAG_DISCARD 0x1#define EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT 0x2#define EXT4_IOC_CHECKPOINT_FLAG_DRY_RUN 0x4#define EXT4_IOC_CHECKPOINT_FLAG_VALID (EXT4_IOC_CHECKPOINT_FLAG_DISCARD | \ EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT | \ EXT4_IOC_CHECKPOINT_FLAG_DRY_RUN)
/* * Structure for EXT4_IOC_GETFSUUID/EXT4_IOC_SETFSUUID */struct fsuuid { __u32 fsu_len; __u32 fsu_flags; __u8 fsu_uuid[];};
/* * Structure for EXT4_IOC_MOVE_EXT */struct move_extent { __u32 reserved; /* should be zero */ __u32 donor_fd; /* donor file descriptor */ __u64 orig_start; /* logical start offset in block for orig */ __u64 donor_start; /* logical start offset in block for donor */ __u64 len; /* block length to be moved */ __u64 moved_len; /* moved block length */};
/* * Flags used by EXT4_IOC_SHUTDOWN */#define EXT4_GOING_FLAGS_DEFAULT 0x0 /* going down */#define EXT4_GOING_FLAGS_LOGFLUSH 0x1 /* flush log but not data */#define EXT4_GOING_FLAGS_NOLOGFLUSH 0x2 /* don't flush log nor data */
/* Used to pass group descriptor data when online resize is done */struct ext4_new_group_input { __u32 group; /* Group number for this data */ __u64 block_bitmap; /* Absolute block number of block bitmap */ __u64 inode_bitmap; /* Absolute block number of inode bitmap */ __u64 inode_table; /* Absolute block number of inode table start */ __u32 blocks_count; /* Total number of blocks in this group */ __u16 reserved_blocks; /* Number of reserved blocks in this group */ __u16 unused;};
struct ext4_tune_sb_params { __u32 set_flags; __u32 checkinterval; __u16 errors_behavior; __u16 mnt_count; __u16 max_mnt_count; __u16 raid_stride; __u64 last_check_time; __u64 reserved_blocks; __u64 blocks_count; __u32 default_mnt_opts; __u32 reserved_uid; __u32 reserved_gid; __u32 raid_stripe_width; __u16 encoding; __u16 encoding_flags; __u8 def_hash_alg; __u8 pad_1; __u16 pad_2; __u32 feature_compat; __u32 feature_incompat; __u32 feature_ro_compat; __u32 set_feature_compat_mask; __u32 set_feature_incompat_mask; __u32 set_feature_ro_compat_mask; __u32 clear_feature_compat_mask; __u32 clear_feature_incompat_mask; __u32 clear_feature_ro_compat_mask; __u8 mount_opts[64]; __u8 pad[68];};
#define EXT4_TUNE_FL_ERRORS_BEHAVIOR 0x00000001#define EXT4_TUNE_FL_MNT_COUNT 0x00000002#define EXT4_TUNE_FL_MAX_MNT_COUNT 0x00000004#define EXT4_TUNE_FL_CHECKINTRVAL 0x00000008#define EXT4_TUNE_FL_LAST_CHECK_TIME 0x00000010#define EXT4_TUNE_FL_RESERVED_BLOCKS 0x00000020#define EXT4_TUNE_FL_RESERVED_UID 0x00000040#define EXT4_TUNE_FL_RESERVED_GID 0x00000080#define EXT4_TUNE_FL_DEFAULT_MNT_OPTS 0x00000100#define EXT4_TUNE_FL_DEF_HASH_ALG 0x00000200#define EXT4_TUNE_FL_RAID_STRIDE 0x00000400#define EXT4_TUNE_FL_RAID_STRIPE_WIDTH 0x00000800#define EXT4_TUNE_FL_MOUNT_OPTS 0x00001000#define EXT4_TUNE_FL_FEATURES 0x00002000#define EXT4_TUNE_FL_EDIT_FEATURES 0x00004000#define EXT4_TUNE_FL_FORCE_FSCK 0x00008000#define EXT4_TUNE_FL_ENCODING 0x00010000#define EXT4_TUNE_FL_ENCODING_FLAGS 0x00020000
/* * Returned by EXT4_IOC_GET_ES_CACHE as an additional possible flag. * It indicates that the entry in extent status cache is for a hole. */#define EXT4_FIEMAP_EXTENT_HOLE 0x08000000
#endif /* _UAPI_LINUX_EXT4_H */