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btrfs: extent-tree: Add new version of btrfs_delalloc_reserve/release_space

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Add new version of btrfs_delalloc_reserve_space() and
btrfs_delalloc_release_space() functions, which supports accurate qgroup
reserve.

Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: Chris Mason <clm@fb.com>
This commit is contained in:
Qu Wenruo
2015-09-08 17:25:53 +08:00
committed by Chris Mason
parent d9d8b2a51a
commit 1ada3a62b5
2 changed files with 61 additions and 0 deletions
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fs/btrfs/ctree.h
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@@ -3473,7 +3473,9 @@ void btrfs_subvolume_release_metadata(struct btrfs_root *root,
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);
int __btrfs_delalloc_reserve_space(struct inode *inode, u64 start, u64 len);
void btrfs_delalloc_release_space(struct inode *inode, u64 num_bytes);
void __btrfs_delalloc_release_space(struct inode *inode, u64 start, u64 len);
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);