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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/ctree.h | |
| parent | f0486c68e4bd9a06a5904d3eeb3a0d73a83befb8 (diff) | |
| download | linux-a22285a6a32390195235171b89d157ed1a1fe932.tar.gz linux-a22285a6a32390195235171b89d157ed1a1fe932.tar.bz2 linux-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/ctree.h')
| -rw-r--r-- | fs/btrfs/ctree.h | 20 |
1 files changed, 18 insertions, 2 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index 7d2479694a58..e0aa9fb563e2 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -34,6 +34,7 @@ struct btrfs_trans_handle; struct btrfs_transaction; +struct btrfs_pending_snapshot; extern struct kmem_cache *btrfs_trans_handle_cachep; extern struct kmem_cache *btrfs_transaction_cachep; extern struct kmem_cache *btrfs_bit_radix_cachep; @@ -970,6 +971,7 @@ struct btrfs_fs_info { int do_barriers; int closing; int log_root_recovering; + int enospc_unlink; u64 total_pinned; @@ -1995,6 +1997,9 @@ void btrfs_put_block_group(struct btrfs_block_group_cache *cache); int btrfs_run_delayed_refs(struct btrfs_trans_handle *trans, struct btrfs_root *root, unsigned long count); int btrfs_lookup_extent(struct btrfs_root *root, u64 start, u64 len); +int btrfs_lookup_extent_info(struct btrfs_trans_handle *trans, + struct btrfs_root *root, u64 bytenr, + u64 num_bytes, u64 *refs, u64 *flags); int btrfs_pin_extent(struct btrfs_root *root, u64 bytenr, u64 num, int reserved); int btrfs_drop_leaf_ref(struct btrfs_trans_handle *trans, @@ -2075,8 +2080,6 @@ u64 btrfs_reduce_alloc_profile(struct btrfs_root *root, u64 flags); void btrfs_set_inode_space_info(struct btrfs_root *root, struct inode *ionde); void btrfs_clear_space_info_full(struct btrfs_fs_info *info); -int btrfs_reserve_metadata_space(struct btrfs_root *root, int num_items); -int btrfs_unreserve_metadata_space(struct btrfs_root *root, int num_items); int btrfs_unreserve_metadata_for_delalloc(struct btrfs_root *root, struct inode *inode, int num_items); int btrfs_reserve_metadata_for_delalloc(struct btrfs_root *root, @@ -2089,6 +2092,13 @@ void btrfs_delalloc_reserve_space(struct btrfs_root *root, struct inode *inode, u64 bytes); void btrfs_delalloc_free_space(struct btrfs_root *root, struct inode *inode, u64 bytes); +int btrfs_trans_reserve_metadata(struct btrfs_trans_handle *trans, + struct btrfs_root *root, + int num_items, int *retries); +void btrfs_trans_release_metadata(struct btrfs_trans_handle *trans, + struct btrfs_root *root); +int btrfs_snap_reserve_metadata(struct btrfs_trans_handle *trans, + struct btrfs_pending_snapshot *pending); void btrfs_init_block_rsv(struct btrfs_block_rsv *rsv); struct btrfs_block_rsv *btrfs_alloc_block_rsv(struct btrfs_root *root); void btrfs_free_block_rsv(struct btrfs_root *root, @@ -2296,6 +2306,12 @@ int btrfs_del_inode_ref(struct btrfs_trans_handle *trans, struct btrfs_root *root, const char *name, int name_len, u64 inode_objectid, u64 ref_objectid, u64 *index); +struct btrfs_inode_ref * +btrfs_lookup_inode_ref(struct btrfs_trans_handle *trans, + struct btrfs_root *root, + struct btrfs_path *path, + const char *name, int name_len, + u64 inode_objectid, u64 ref_objectid, int mod); int btrfs_insert_empty_inode(struct btrfs_trans_handle *trans, struct btrfs_root *root, struct btrfs_path *path, u64 objectid); |