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bcachefs: btree_iter_prev_slot()

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Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Kent Overstreet 2021-03-02 22:45:28 -05:00 committed by Kent Overstreet
parent b8f0507915
commit 18fc6ae503
2 changed files with 9 additions and 0 deletions
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8
fs/bcachefs/btree_iter.c
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@ -1904,6 +1904,14 @@ struct bkey_s_c bch2_btree_iter_next_slot(struct btree_iter *iter)
return bch2_btree_iter_peek_slot(iter);
}
struct bkey_s_c bch2_btree_iter_prev_slot(struct btree_iter *iter)
{
if (!bch2_btree_iter_rewind_pos(iter))
return bkey_s_c_null;
return bch2_btree_iter_peek_slot(iter);
}
struct bkey_s_c bch2_btree_iter_peek_cached(struct btree_iter *iter)
{
struct bkey_cached *ck;

1
fs/bcachefs/btree_iter.h
View File

@ -171,6 +171,7 @@ struct bkey_s_c bch2_btree_iter_prev(struct btree_iter *);
struct bkey_s_c bch2_btree_iter_peek_slot(struct btree_iter *);
struct bkey_s_c bch2_btree_iter_next_slot(struct btree_iter *);
struct bkey_s_c bch2_btree_iter_prev_slot(struct btree_iter *);
struct bkey_s_c bch2_btree_iter_peek_cached(struct btree_iter *);