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bcache: wait for buckets when allocating new btree root

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Tested:
- sometimes bcache_tier test would hang on startup with a failure
  to allocate the btree root -- no longer seeing this

Signed-off-by: Kent Overstreet <kmo@daterainc.com>
This commit is contained in:
Slava Pestov
2014-04-21 18:23:12 -07:00
committed by Kent Overstreet
parent a664d0f05a
commit c5aa4a3157
3 changed files with 12 additions and 5 deletions
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3
drivers/md/bcache/btree.h
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@@ -242,7 +242,8 @@ void __bch_btree_node_write(struct btree *, struct closure *);
void bch_btree_node_write(struct btree *, struct closure *);
void bch_btree_set_root(struct btree *);
struct btree *bch_btree_node_alloc(struct cache_set *, struct btree_op *, int);
struct btree *__bch_btree_node_alloc(struct cache_set *, struct btree_op *,
int, bool);
struct btree *bch_btree_node_get(struct cache_set *, struct btree_op *,
struct bkey *, int, bool);