Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-22 12:11:40 +00:00
Code Issues Packages Projects Releases Wiki Activity

btrfs: convert EXTENT_* bits to enums

Browse Source 
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
David Sterba 2022-09-09 17:34:58 +02:00
parent fd8d2951f4
commit d3b4d0fd55
1 changed files with 38 additions and 33 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

71
fs/btrfs/extent-io-tree.h
View File

@ -3,43 +3,48 @@
#ifndef BTRFS_EXTENT_IO_TREE_H
#define BTRFS_EXTENT_IO_TREE_H
#include "misc.h"
struct extent_changeset;
struct io_failure_record;
/* Bits for the extent state */
#define EXTENT_DIRTY (1U << 0)
#define EXTENT_UPTODATE (1U << 1)
#define EXTENT_LOCKED (1U << 2)
#define EXTENT_NEW (1U << 3)
#define EXTENT_DELALLOC (1U << 4)
#define EXTENT_DEFRAG (1U << 5)
#define EXTENT_BOUNDARY (1U << 6)
#define EXTENT_NODATASUM (1U << 7)
#define EXTENT_CLEAR_META_RESV (1U << 8)
#define EXTENT_NEED_WAIT (1U << 9)
#define EXTENT_NORESERVE (1U << 11)
#define EXTENT_QGROUP_RESERVED (1U << 12)
#define EXTENT_CLEAR_DATA_RESV (1U << 13)
/*
* Must be cleared only during ordered extent completion or on error paths if we
* did not manage to submit bios and create the ordered extents for the range.
* Should not be cleared during page release and page invalidation (if there is
* an ordered extent in flight), that is left for the ordered extent completion.
*/
#define EXTENT_DELALLOC_NEW (1U << 14)
/*
* When an ordered extent successfully completes for a region marked as a new
* delalloc range, use this flag when clearing a new delalloc range to indicate
* that the VFS' inode number of bytes should be incremented and the inode's new
* delalloc bytes decremented, in an atomic way to prevent races with stat(2).
*/
#define EXTENT_ADD_INODE_BYTES (1U << 15)
/*
* Set during truncate when we're clearing an entire range and we just want the
* extent states to go away.
*/
#define EXTENT_CLEAR_ALL_BITS (1U << 16)
enum {
ENUM_BIT(EXTENT_DIRTY),
ENUM_BIT(EXTENT_UPTODATE),
ENUM_BIT(EXTENT_LOCKED),
ENUM_BIT(EXTENT_NEW),
ENUM_BIT(EXTENT_DELALLOC),
ENUM_BIT(EXTENT_DEFRAG),
ENUM_BIT(EXTENT_BOUNDARY),
ENUM_BIT(EXTENT_NODATASUM),
ENUM_BIT(EXTENT_CLEAR_META_RESV),
ENUM_BIT(EXTENT_NEED_WAIT),
ENUM_BIT(EXTENT_NORESERVE),
ENUM_BIT(EXTENT_QGROUP_RESERVED),
ENUM_BIT(EXTENT_CLEAR_DATA_RESV),
/*
* Must be cleared only during ordered extent completion or on error
* paths if we did not manage to submit bios and create the ordered
* extents for the range. Should not be cleared during page release
* and page invalidation (if there is an ordered extent in flight),
* that is left for the ordered extent completion.
*/
ENUM_BIT(EXTENT_DELALLOC_NEW),
/*
* When an ordered extent successfully completes for a region marked as
* a new delalloc range, use this flag when clearing a new delalloc
* range to indicate that the VFS' inode number of bytes should be
* incremented and the inode's new delalloc bytes decremented, in an
* atomic way to prevent races with stat(2).
*/
ENUM_BIT(EXTENT_ADD_INODE_BYTES),
/*
* Set during truncate when we're clearing an entire range and we just
* want the extent states to go away.
*/
ENUM_BIT(EXTENT_CLEAR_ALL_BITS),
};
#define EXTENT_DO_ACCOUNTING (EXTENT_CLEAR_META_RESV | \
EXTENT_CLEAR_DATA_RESV)