GGLinnk/bees
1
0
Fork 0
mirror of https://github.com/Zygo/bees.git synced 2025-06-16 17:46:16 +02:00
Code Packages Activity

bees: remove local cruft, throw at github

Browse Source
This commit is contained in:
Zygo Blaxell
2016-11-15 23:32:44 -05:00
commit cca0ee26a8
66 changed files with 12785 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

205
include/crucible/btrfs.h Normal file
View File

@ -0,0 +1,205 @@
#ifndef CRUCIBLE_BTRFS_H
#define CRUCIBLE_BTRFS_H
// Copied from Linux kernel sources as of 3.15 or so.
// These are probably missing from /usr/include at the moment.
// NULL
#include <cstdio>
// _IOWR macro and friends
#include <asm-generic/ioctl.h>
// __u64 typedef and friends
#include <linux/types.h>
// try Linux headers first
#include <btrfs/ioctl.h>
// Supply any missing definitions
#define mutex not_mutex
#include <btrfs/ctree.h>
// Repair the damage
#undef min
#undef max
#undef mutex
#ifndef BTRFS_FIRST_FREE_OBJECTID
#define BTRFS_ROOT_TREE_OBJECTID 1ULL
#define BTRFS_EXTENT_TREE_OBJECTID 2ULL
#define BTRFS_CHUNK_TREE_OBJECTID 3ULL
#define BTRFS_DEV_TREE_OBJECTID 4ULL
#define BTRFS_FS_TREE_OBJECTID 5ULL
#define BTRFS_ROOT_TREE_DIR_OBJECTID 6ULL
#define BTRFS_CSUM_TREE_OBJECTID 7ULL
#define BTRFS_QUOTA_TREE_OBJECTID 8ULL
#define BTRFS_UUID_TREE_OBJECTID 9ULL
#define BTRFS_FREE_SPACE_TREE_OBJECTID 10ULL
#define BTRFS_BALANCE_OBJECTID -4ULL
#define BTRFS_ORPHAN_OBJECTID -5ULL
#define BTRFS_TREE_LOG_OBJECTID -6ULL
#define BTRFS_TREE_LOG_FIXUP_OBJECTID -7ULL
#define BTRFS_TREE_RELOC_OBJECTID -8ULL
#define BTRFS_DATA_RELOC_TREE_OBJECTID -9ULL
#define BTRFS_EXTENT_CSUM_OBJECTID -10ULL
#define BTRFS_FREE_SPACE_OBJECTID -11ULL
#define BTRFS_FREE_INO_OBJECTID -12ULL
#define BTRFS_MULTIPLE_OBJECTIDS -255ULL
#define BTRFS_FIRST_FREE_OBJECTID 256ULL
#define BTRFS_LAST_FREE_OBJECTID -256ULL
#define BTRFS_FIRST_CHUNK_TREE_OBJECTID 256ULL
#define BTRFS_DEV_ITEMS_OBJECTID 1ULL
#define BTRFS_INODE_ITEM_KEY 1
#define BTRFS_INODE_REF_KEY 12
#define BTRFS_INODE_EXTREF_KEY 13
#define BTRFS_XATTR_ITEM_KEY 24
#define BTRFS_ORPHAN_ITEM_KEY 48
#define BTRFS_DIR_LOG_ITEM_KEY 60
#define BTRFS_DIR_LOG_INDEX_KEY 72
#define BTRFS_DIR_ITEM_KEY 84
#define BTRFS_DIR_INDEX_KEY 96
#define BTRFS_EXTENT_DATA_KEY 108
#define BTRFS_CSUM_ITEM_KEY 120
#define BTRFS_EXTENT_CSUM_KEY 128
#define BTRFS_ROOT_ITEM_KEY 132
#define BTRFS_ROOT_BACKREF_KEY 144
#define BTRFS_ROOT_REF_KEY 156
#define BTRFS_EXTENT_ITEM_KEY 168
#define BTRFS_METADATA_ITEM_KEY 169
#define BTRFS_TREE_BLOCK_REF_KEY 176
#define BTRFS_EXTENT_DATA_REF_KEY 178
#define BTRFS_EXTENT_REF_V0_KEY 180
#define BTRFS_SHARED_BLOCK_REF_KEY 182
#define BTRFS_SHARED_DATA_REF_KEY 184
#define BTRFS_BLOCK_GROUP_ITEM_KEY 192
#define BTRFS_FREE_SPACE_INFO_KEY 198
#define BTRFS_FREE_SPACE_EXTENT_KEY 199
#define BTRFS_FREE_SPACE_BITMAP_KEY 200
#define BTRFS_DEV_EXTENT_KEY 204
#define BTRFS_DEV_ITEM_KEY 216
#define BTRFS_CHUNK_ITEM_KEY 228
#define BTRFS_BALANCE_ITEM_KEY 248
#define BTRFS_QGROUP_STATUS_KEY 240
#define BTRFS_QGROUP_INFO_KEY 242
#define BTRFS_QGROUP_LIMIT_KEY 244
#define BTRFS_QGROUP_RELATION_KEY 246
#define BTRFS_DEV_STATS_KEY 249
#define BTRFS_DEV_REPLACE_KEY 250
#define BTRFS_UUID_KEY_SUBVOL 251
#define BTRFS_UUID_KEY_RECEIVED_SUBVOL 252
#define BTRFS_STRING_ITEM_KEY 253
#endif
#ifndef BTRFS_DEFRAG_RANGE_START_IO
// For some reason uapi has BTRFS_DEFRAG_RANGE_COMPRESS and
// BTRFS_DEFRAG_RANGE_START_IO but not btrfs_ioctl_defrag_range_args
// Never mind, it's too broken to be useful anyway
struct btrfs_ioctl_defrag_range_args {
/* start of the defrag operation */
__u64 start;
/* number of bytes to defrag, use (u64)-1 to say all */
__u64 len;
/*
* flags for the operation, which can include turning
* on compression for this one defrag
*/
__u64 flags;
/*
* any extent bigger than this will be considered
* already defragged. Use 0 to take the kernel default
* Use 1 to say every single extent must be rewritten
*/
__u32 extent_thresh;
/*
* which compression method to use if turning on compression
* for this defrag operation. If unspecified, zlib will
* be used
*/
__u32 compress_type;
/* spare for later */
__u32 unused[4];
};
#endif
#ifndef BTRFS_IOC_CLONE_RANGE
struct btrfs_ioctl_clone_range_args {
__s64 src_fd;
__u64 src_offset, src_length;
__u64 dest_offset;
};
// We definitely have this
#define BTRFS_IOCTL_MAGIC 0x94
#define BTRFS_IOC_CLONE _IOW(BTRFS_IOCTL_MAGIC, 9, int)
#define BTRFS_IOC_CLONE_RANGE _IOW(BTRFS_IOCTL_MAGIC, 13, \
struct btrfs_ioctl_clone_range_args)
#endif
#ifndef BTRFS_SAME_DATA_DIFFERS
#define BTRFS_SAME_DATA_DIFFERS 1
/* For extent-same ioctl */
struct btrfs_ioctl_same_extent_info {
__s64 fd; /* in - destination file */
__u64 logical_offset; /* in - start of extent in destination */
__u64 bytes_deduped; /* out - total # of bytes we were able
* to dedupe from this file */
/* status of this dedupe operation:
* 0 if dedup succeeds
* < 0 for error
* == BTRFS_SAME_DATA_DIFFERS if data differs
*/
__s32 status; /* out - see above description */
__u32 reserved;
};
struct btrfs_ioctl_same_args {
__u64 logical_offset; /* in - start of extent in source */
__u64 length; /* in - length of extent */
__u16 dest_count; /* in - total elements in info array */
__u16 reserved1;
__u32 reserved2;
struct btrfs_ioctl_same_extent_info info[0];
};
#define BTRFS_IOC_FILE_EXTENT_SAME _IOWR(BTRFS_IOCTL_MAGIC, 54, \
struct btrfs_ioctl_same_args)
#endif
#ifndef BTRFS_MAX_DEDUPE_LEN
#define BTRFS_MAX_DEDUPE_LEN (16 * 1024 * 1024)
#endif
#ifndef BTRFS_IOC_TREE_SEARCH_V2
/*
* Extended version of TREE_SEARCH ioctl that can return more than 4k of bytes.
* The allocated size of the buffer is set in buf_size.
*/
struct btrfs_ioctl_search_args_v2 {
struct btrfs_ioctl_search_key key; /* in/out - search parameters */
__u64 buf_size; /* in - size of buffer
* out - on EOVERFLOW: needed size
* to store item */
__u64 buf[0]; /* out - found items */
};
#define BTRFS_IOC_TREE_SEARCH_V2 _IOWR(BTRFS_IOCTL_MAGIC, 17, \
struct btrfs_ioctl_search_args_v2)
#endif
#endif // CRUCIBLE_BTRFS_H