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author | Miao Xie <miaox@cn.fujitsu.com> | 2014-04-02 15:51:05 +0400 |
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committer | Chris Mason <clm@fb.com> | 2014-06-10 04:20:40 +0400 |
commit | 27cdeb7096b86f05ad018a24cdb63acdf0850a5d (patch) | |
tree | 1e795214fd0456f83c85843bea354d7331328bd1 /fs/btrfs/ctree.h | |
parent | f959492fc15b60d874a9cbf55ae4760f2ef261ed (diff) | |
download | linux-27cdeb7096b86f05ad018a24cdb63acdf0850a5d.tar.xz |
Btrfs: use bitfield instead of integer data type for the some variants in btrfs_root
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Signed-off-by: Chris Mason <clm@fb.com>
Diffstat (limited to 'fs/btrfs/ctree.h')
-rw-r--r-- | fs/btrfs/ctree.h | 39 |
1 files changed, 21 insertions, 18 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index 0a805b8d61cc..efd3bf61696d 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -1711,6 +1711,26 @@ struct btrfs_subvolume_writers { }; /* + * The state of btrfs root + */ +/* + * btrfs_record_root_in_trans is a multi-step process, + * and it can race with the balancing code. But the + * race is very small, and only the first time the root + * is added to each transaction. So IN_TRANS_SETUP + * is used to tell us when more checks are required + */ +#define BTRFS_ROOT_IN_TRANS_SETUP 0 +#define BTRFS_ROOT_REF_COWS 1 +#define BTRFS_ROOT_TRACK_DIRTY 2 +#define BTRFS_ROOT_IN_RADIX 3 +#define BTRFS_ROOT_DUMMY_ROOT 4 +#define BTRFS_ROOT_ORPHAN_ITEM_INSERTED 5 +#define BTRFS_ROOT_DEFRAG_RUNNING 6 +#define BTRFS_ROOT_FORCE_COW 7 +#define BTRFS_ROOT_MULTI_LOG_TASKS 8 + +/* * in ram representation of the tree. extent_root is used for all allocations * and for the extent tree extent_root root. */ @@ -1721,6 +1741,7 @@ struct btrfs_root { struct btrfs_root *log_root; struct btrfs_root *reloc_root; + unsigned long state; struct btrfs_root_item root_item; struct btrfs_key root_key; struct btrfs_fs_info *fs_info; @@ -1755,7 +1776,6 @@ struct btrfs_root { /* Just be updated when the commit succeeds. */ int last_log_commit; pid_t log_start_pid; - bool log_multiple_pids; u64 objectid; u64 last_trans; @@ -1775,23 +1795,9 @@ struct btrfs_root { u64 highest_objectid; - /* btrfs_record_root_in_trans is a multi-step process, - * and it can race with the balancing code. But the - * race is very small, and only the first time the root - * is added to each transaction. So in_trans_setup - * is used to tell us when more checks are required - */ - unsigned long in_trans_setup; - int ref_cows; - int track_dirty; - int in_radix; -#ifdef CONFIG_BTRFS_FS_RUN_SANITY_TESTS - int dummy_root; -#endif u64 defrag_trans_start; struct btrfs_key defrag_progress; struct btrfs_key defrag_max; - int defrag_running; char *name; /* the dirty list is only used by non-reference counted roots */ @@ -1805,7 +1811,6 @@ struct btrfs_root { spinlock_t orphan_lock; atomic_t orphan_inodes; struct btrfs_block_rsv *orphan_block_rsv; - int orphan_item_inserted; int orphan_cleanup_state; spinlock_t inode_lock; @@ -1823,8 +1828,6 @@ struct btrfs_root { */ dev_t anon_dev; - int force_cow; - spinlock_t root_item_lock; atomic_t refs; |