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btrfs: convert __TRANS_* defines to enum bits

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The base transaction bits can be defined as bits in a contiguous
sequence, although right now there's a hole from bit 1 to 8.

The bits are used for btrfs_trans_handle::type, and there's another set
of TRANS_STATE_* defines that are for btrfs_transaction::state. They are
mutually exclusive though the hole in the sequence looks like was made
for the states.

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 17:43:06 +02:00
parent e0a8b9a747
commit cc37ea6192
1 changed files with 10 additions and 8 deletions
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18
fs/btrfs/transaction.h
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@ -10,6 +10,7 @@
#include "btrfs_inode.h"
#include "delayed-ref.h"
#include "ctree.h"
#include "misc.h"
enum btrfs_trans_state {
TRANS_STATE_RUNNING,
@ -98,14 +99,15 @@ struct btrfs_transaction {
struct list_head releasing_ebs;
};
#define __TRANS_FREEZABLE (1U << 0)
#define __TRANS_START (1U << 9)
#define __TRANS_ATTACH (1U << 10)
#define __TRANS_JOIN (1U << 11)
#define __TRANS_JOIN_NOLOCK (1U << 12)
#define __TRANS_DUMMY (1U << 13)
#define __TRANS_JOIN_NOSTART (1U << 14)
enum {
ENUM_BIT(__TRANS_FREEZABLE),
ENUM_BIT(__TRANS_START),
ENUM_BIT(__TRANS_ATTACH),
ENUM_BIT(__TRANS_JOIN),
ENUM_BIT(__TRANS_JOIN_NOLOCK),
ENUM_BIT(__TRANS_DUMMY),
ENUM_BIT(__TRANS_JOIN_NOSTART),
};
#define TRANS_START (__TRANS_START | __TRANS_FREEZABLE)
#define TRANS_ATTACH (__TRANS_ATTACH)