diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index 8d6f55fbd28e8a0564d931c9b564a2cd9b8b90d4..fe14285b53f1a49d4f39efc2a6621002ddc96fa2 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -513,6 +513,15 @@ int clear_extent_bit(struct extent_io_tree *tree, u64 start, u64 end, WARN_ON(state->end < start); last_end = state->end; + if (state->end < end && !need_resched()) + next_node = rb_next(&state->rb_node); + else + next_node = NULL; + + /* the state doesn't have the wanted bits, go ahead */ + if (!(state->state & bits)) + goto next; + /* * | ---- desired range ---- | * | state | or @@ -565,12 +574,8 @@ int clear_extent_bit(struct extent_io_tree *tree, u64 start, u64 end, goto out; } - if (state->end < end && prealloc && !need_resched()) - next_node = rb_next(&state->rb_node); - else - next_node = NULL; - set |= clear_state_bit(tree, state, &bits, wake); +next: if (last_end == (u64)-1) goto out; start = last_end + 1;