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| author | Slava Pestov <sp@daterainc.com> | 2014-04-21 18:23:12 -0700 |
|---|---|---|
| committer | Kent Overstreet <kmo@daterainc.com> | 2014-08-04 15:23:03 -0700 |
| commit | c5aa4a3157b55bdca18dd2a9d9f43314470b6d32 (patch) | |
| tree | 561c55e24a7bc8d646ef2af5bb039b7b815bb676 /drivers/md/bcache/btree.c | |
| parent | a664d0f05a2ec02c8f042db536d84d15d6e19e81 (diff) | |
| download | blackbird-op-linux-c5aa4a3157b55bdca18dd2a9d9f43314470b6d32.tar.gz blackbird-op-linux-c5aa4a3157b55bdca18dd2a9d9f43314470b6d32.zip | |
bcache: wait for buckets when allocating new btree root
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>
Diffstat (limited to 'drivers/md/bcache/btree.c')
| -rw-r--r-- | drivers/md/bcache/btree.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/drivers/md/bcache/btree.c b/drivers/md/bcache/btree.c index 7347b6100961..9dd9f1c4d0d9 100644 --- a/drivers/md/bcache/btree.c +++ b/drivers/md/bcache/btree.c @@ -1060,15 +1060,15 @@ static void btree_node_free(struct btree *b) mutex_unlock(&b->c->bucket_lock); } -struct btree *bch_btree_node_alloc(struct cache_set *c, struct btree_op *op, - int level) +struct btree *__bch_btree_node_alloc(struct cache_set *c, struct btree_op *op, + int level, bool wait) { BKEY_PADDED(key) k; struct btree *b = ERR_PTR(-EAGAIN); mutex_lock(&c->bucket_lock); retry: - if (__bch_bucket_alloc_set(c, RESERVE_BTREE, &k.key, 1, op != NULL)) + if (__bch_bucket_alloc_set(c, RESERVE_BTREE, &k.key, 1, wait)) goto err; bkey_put(c, &k.key); @@ -1100,6 +1100,12 @@ err: return b; } +static struct btree *bch_btree_node_alloc(struct cache_set *c, + struct btree_op *op, int level) +{ + return __bch_btree_node_alloc(c, op, level, op != NULL); +} + static struct btree *btree_node_alloc_replacement(struct btree *b, struct btree_op *op) { |
