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| author | Miao Xie <miaox@cn.fujitsu.com> | 2012-09-06 04:02:28 -0600 |
|---|---|---|
| committer | Chris Mason <chris.mason@fusionio.com> | 2012-10-01 15:19:11 -0400 |
| commit | 66d8f3dd1c87813d7f1cf8b774cb03e9b8d7e87e (patch) | |
| tree | 74d18d716f42e15958a9723ece4cd98dfdfd6a74 /fs/btrfs/ctree.h | |
| parent | 6352b91da1a2108bb8cc5115e8714f90d706f15f (diff) | |
| download | linux-66d8f3dd1c87813d7f1cf8b774cb03e9b8d7e87e.tar.gz | |
Btrfs: add a new "type" field into the block reservation structure
Sometimes we need choose the method of the reservation according to the type of the block reservation, such as the reservation for the delayed inode update. Now we identify the type just by comparing the address of the reservation variants, it is very ugly if it is a temporary one because we need compare it with all the common reservation variants. So we add a new "type" field to keep the type the reservation variants. Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Diffstat (limited to 'fs/btrfs/ctree.h')
| -rw-r--r-- | fs/btrfs/ctree.h | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index b7cd3adb5a58..2990a7ea6248 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -1028,13 +1028,22 @@ struct btrfs_space_info { wait_queue_head_t wait; }; +#define BTRFS_BLOCK_RSV_GLOBAL 1 +#define BTRFS_BLOCK_RSV_DELALLOC 2 +#define BTRFS_BLOCK_RSV_TRANS 3 +#define BTRFS_BLOCK_RSV_CHUNK 4 +#define BTRFS_BLOCK_RSV_DELOPS 5 +#define BTRFS_BLOCK_RSV_EMPTY 6 +#define BTRFS_BLOCK_RSV_TEMP 7 + struct btrfs_block_rsv { u64 size; u64 reserved; struct btrfs_space_info *space_info; spinlock_t lock; - unsigned int full; - unsigned int failfast; + unsigned short full; + unsigned short type; + unsigned short failfast; }; /* @@ -2875,8 +2884,9 @@ int btrfs_delalloc_reserve_metadata(struct inode *inode, u64 num_bytes); void btrfs_delalloc_release_metadata(struct inode *inode, u64 num_bytes); int btrfs_delalloc_reserve_space(struct inode *inode, u64 num_bytes); void btrfs_delalloc_release_space(struct inode *inode, u64 num_bytes); -void btrfs_init_block_rsv(struct btrfs_block_rsv *rsv); -struct btrfs_block_rsv *btrfs_alloc_block_rsv(struct btrfs_root *root); +void btrfs_init_block_rsv(struct btrfs_block_rsv *rsv, unsigned short type); +struct btrfs_block_rsv *btrfs_alloc_block_rsv(struct btrfs_root *root, + unsigned short type); void btrfs_free_block_rsv(struct btrfs_root *root, struct btrfs_block_rsv *rsv); int btrfs_block_rsv_add(struct btrfs_root *root, |