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| author | Yan, Zheng <zheng.yan@oracle.com> | 2010-05-16 10:48:46 -0400 |
|---|---|---|
| committer | Chris Mason <chris.mason@oracle.com> | 2010-05-25 10:34:50 -0400 |
| commit | a22285a6a32390195235171b89d157ed1a1fe932 (patch) | |
| tree | 3fabc88a029e1af4f2fdcc708e7b62ef3cf3703a /fs/btrfs/transaction.h | |
| parent | f0486c68e4bd9a06a5904d3eeb3a0d73a83befb8 (diff) | |
| download | lwn-a22285a6a32390195235171b89d157ed1a1fe932.tar.gz lwn-a22285a6a32390195235171b89d157ed1a1fe932.zip | |
Btrfs: Integrate metadata reservation with start_transaction
Besides simplify the code, this change makes sure all metadata
reservation for normal metadata operations are released after
committing transaction.
Changes since V1:
Add code that check if unlink and rmdir will free space.
Add ENOSPC handling for clone ioctl.
Signed-off-by: Yan Zheng <zheng.yan@oracle.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs/transaction.h')
| -rw-r--r-- | fs/btrfs/transaction.h | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/fs/btrfs/transaction.h b/fs/btrfs/transaction.h index 56e728d70e39..14b3841b75d5 100644 --- a/fs/btrfs/transaction.h +++ b/fs/btrfs/transaction.h @@ -57,8 +57,11 @@ struct btrfs_trans_handle { struct btrfs_pending_snapshot { struct dentry *dentry; struct btrfs_root *root; - char *name; - struct btrfs_key root_key; + struct btrfs_root *snap; + /* block reservation for the operation */ + struct btrfs_block_rsv block_rsv; + /* extra metadata reseration for relocation */ + int error; struct list_head list; }; @@ -85,11 +88,11 @@ static inline void btrfs_set_inode_last_trans(struct btrfs_trans_handle *trans, int btrfs_end_transaction(struct btrfs_trans_handle *trans, struct btrfs_root *root); struct btrfs_trans_handle *btrfs_start_transaction(struct btrfs_root *root, - int num_blocks); + int num_items); struct btrfs_trans_handle *btrfs_join_transaction(struct btrfs_root *root, - int num_blocks); + int num_blocks); struct btrfs_trans_handle *btrfs_start_ioctl_transaction(struct btrfs_root *r, - int num_blocks); + int num_blocks); int btrfs_write_and_wait_transaction(struct btrfs_trans_handle *trans, struct btrfs_root *root); int btrfs_commit_tree_roots(struct btrfs_trans_handle *trans, |