sys/linux/fs_ext4.txt

# Copyright 2018 syzkaller project authors. All rights reserved.
# Use of this source code is governed by Apache 2 LICENSE that can be found in the LICENSE file.

include <uapi/linux/fs.h>
include <uapi/linux/fsmap.h>
include <fs/ext4/ext4.h>

ioctl$EXT4_IOC_SETFLAGS(fd fd, cmd const[EXT4_IOC_SETFLAGS], arg ptr[in, flags[ext4_inode_flags, intptr]])
ioctl$EXT4_IOC_GROUP_EXTEND(fd fd, cmd const[EXT4_IOC_GROUP_EXTEND], arg ptr[in, intptr])
ioctl$EXT4_IOC_GROUP_ADD(fd fd, cmd const[EXT4_IOC_GROUP_ADD], arg ptr[in, ext4_new_group_input])
ioctl$EXT4_IOC_MIGRATE(fd fd, cmd const[EXT4_IOC_MIGRATE])
ioctl$EXT4_IOC_ALLOC_DA_BLKS(fd fd, cmd const[EXT4_IOC_ALLOC_DA_BLKS])
ioctl$EXT4_IOC_MOVE_EXT(fd fd, cmd const[EXT4_IOC_MOVE_EXT], arg ptr[in, move_extent])
ioctl$EXT4_IOC_SWAP_BOOT(fd fd, cmd const[EXT4_IOC_SWAP_BOOT])
ioctl$EXT4_IOC_PRECACHE_EXTENTS(fd fd, cmd const[EXT4_IOC_PRECACHE_EXTENTS])

ext4_inode_flags = EXT4_SECRM_FL, EXT4_UNRM_FL, EXT4_COMPR_FL, EXT4_SYNC_FL, EXT4_IMMUTABLE_FL, EXT4_APPEND_FL, EXT4_NODUMP_FL, EXT4_NOATIME_FL, EXT4_PROJINHERIT_FL, EXT4_EOFBLOCKS_FL, EXT4_JOURNAL_DATA_FL, EXT4_NOTAIL_FL, EXT4_DIRSYNC_FL, EXT4_TOPDIR_FL, EXT4_EXTENTS_FL

# See comments in init.go.
_ = EXT4_IOC_SHUTDOWN, EXT4_IOC_RESIZE_FS

ext4_new_group_input {
	group		int32
	block_bitmap	int64
	inode_bitmap	int64
	inode_table	int64
	blocks_count	int32
	reserved_blocks	int16
	unused		const[0, int16]
}

move_extent {
	reserved	const[0, int32]
	donor_fd	fd
	orig_start	int64
	donor_start	int64
	len		int64
	moved_len	int64
}