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Btrfs: Extent based page cache code. This uses an rbtree of extents and tests

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instead of buffer heads.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
This commit is contained in:
Chris Mason
2007-08-27 16:49:44 -04:00
committed by David Woodhouse
parent 83df7c1d8b
commit a52d9a8033
9 changed files with 2213 additions and 679 deletions
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7
fs/btrfs/ctree.h
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@@ -1176,7 +1176,14 @@ int btrfs_commit_write(struct file *file, struct page *page,
unsigned from, unsigned to);
int btrfs_get_block(struct inode *inode, sector_t iblock,
struct buffer_head *result, int create);
struct extent_map *btrfs_get_extent(struct inode *inode, struct page *page,
size_t page_offset, u64 start, u64 end,
int create);
int btrfs_update_inode(struct btrfs_trans_handle *trans,
struct btrfs_root *root,
struct inode *inode);
/* file.c */
int btrfs_drop_extent_cache(struct inode *inode, u64 start, u64 end);
extern struct file_operations btrfs_file_operations;
int btrfs_drop_extents(struct btrfs_trans_handle *trans,
struct btrfs_root *root, struct inode *inode,