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| author | Jan Schmidt <list.btrfs@jan-o-sch.net> | 2012-06-11 08:29:29 +0200 |
|---|---|---|
| committer | Jan Schmidt <list.btrfs@jan-o-sch.net> | 2012-06-14 18:52:09 +0200 |
| commit | 3d7806eca43e73a9721d2e09369200ed93036bd0 (patch) | |
| tree | 339d940a7cb3522169f9e2a8b14edf8b8ae15880 /fs/btrfs/ctree.h | |
| parent | Btrfs: fix return value for __tree_mod_log_oldest_root (diff) | |
| download | linux-3d7806eca43e73a9721d2e09369200ed93036bd0.tar.xz linux-3d7806eca43e73a9721d2e09369200ed93036bd0.zip | |
Btrfs: add btrfs_next_old_leaf
To make sense of the tree mod log, the backref walker not only needs
btrfs_search_old_slot, but it also called btrfs_next_leaf, which in turn was
calling btrfs_search_slot. This obviously didn't give the correct result.
This commit adds btrfs_next_old_leaf, a drop-in replacement for
btrfs_next_leaf with a time_seq parameter. If it is zero, it behaves exactly
like btrfs_next_leaf. If it is non-zero, it will use btrfs_search_old_slot
with this time_seq parameter.
Signed-off-by: Jan Schmidt <list.btrfs@jan-o-sch.net>
Diffstat (limited to '')
| -rw-r--r-- | fs/btrfs/ctree.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index 0151ca1ac657..db15e9e7b91c 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -2753,6 +2753,8 @@ static inline int btrfs_insert_empty_item(struct btrfs_trans_handle *trans, } int btrfs_next_leaf(struct btrfs_root *root, struct btrfs_path *path); +int btrfs_next_old_leaf(struct btrfs_root *root, struct btrfs_path *path, + u64 time_seq); static inline int btrfs_next_item(struct btrfs_root *root, struct btrfs_path *p) { ++p->slots[0]; |