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Code Issues Releases Wiki Activity

bcachefs: Drop unnecessary rcu_read_lock()

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Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Kent Overstreet 2019-09-21 16:30:15 -04:00 committed by Kent Overstreet
parent fdfab313b6
commit fb975d14b7
1 changed files with 0 additions and 6 deletions
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6
fs/bcachefs/btree_cache.c
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@ -675,10 +675,7 @@ struct btree *bch2_btree_node_get(struct bch_fs *c, struct btree_iter *iter,
EBUG_ON(!btree_node_locked(iter, level + 1));
EBUG_ON(level >= BTREE_MAX_DEPTH);
retry:
rcu_read_lock();
b = btree_cache_find(bc, k);
rcu_read_unlock();
if (unlikely(!b)) {
/*
* We must have the parent locked to call bch2_btree_node_fill(),
@ -879,10 +876,7 @@ void bch2_btree_node_prefetch(struct bch_fs *c, struct btree_iter *iter,
BUG_ON(!btree_node_locked(iter, level + 1));
BUG_ON(level >= BTREE_MAX_DEPTH);
rcu_read_lock();
b = btree_cache_find(bc, k);
rcu_read_unlock();
if (b)
return;