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btrfs: extended inode ref iteration

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The iterate_irefs in backref.c is used to build path components from inode
refs. This patch adds code to iterate extended refs as well.

I had modify the callback function signature to abstract out some of the
differences between ref structures. iref_to_path() also needed similar
changes.

Signed-off-by: Mark Fasheh <mfasheh@suse.de>
This commit is contained in:
Mark Fasheh 2012-08-08 11:33:54 -07:00 • committed by Chris Mason
parent f186373fef
commit d24bec3ae5
2 changed files with 138 additions and 37 deletions
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2
fs/btrfs/backref.h
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@ -33,8 +33,6 @@ struct inode_fs_paths {
typedef int (iterate_extent_inodes_t)(u64 inum, u64 offset, u64 root,
void *ctx);
typedef int (iterate_irefs_t)(u64 parent, struct btrfs_inode_ref *iref,
struct extent_buffer *eb, void *ctx);
int inode_item_info(u64 inum, u64 ioff, struct btrfs_root *fs_root,
struct btrfs_path *path);