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Diffstat (limited to 'fs/btrfs/disk-io.c')
-rw-r--r--fs/btrfs/disk-io.c12
1 files changed, 8 insertions, 4 deletions
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 9b7020197c7..3c2886ca7d8 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -3762,6 +3762,7 @@ int btrfs_destroy_delayed_refs(struct btrfs_transaction *trans,
while ((node = rb_first(&delayed_refs->root)) != NULL) {
struct btrfs_delayed_ref_head *head = NULL;
+ bool pin_bytes = false;
ref = rb_entry(node, struct btrfs_delayed_ref_node, rb_node);
atomic_set(&ref->refs, 1);
@@ -3782,8 +3783,7 @@ int btrfs_destroy_delayed_refs(struct btrfs_transaction *trans,
}
if (head->must_insert_reserved)
- btrfs_pin_extent(root, ref->bytenr,
- ref->num_bytes, 1);
+ pin_bytes = true;
btrfs_free_delayed_extent_op(head->extent_op);
delayed_refs->num_heads--;
if (list_empty(&head->cluster))
@@ -3794,9 +3794,13 @@ int btrfs_destroy_delayed_refs(struct btrfs_transaction *trans,
ref->in_tree = 0;
rb_erase(&ref->rb_node, &delayed_refs->root);
delayed_refs->num_entries--;
- if (head)
- mutex_unlock(&head->mutex);
spin_unlock(&delayed_refs->lock);
+ if (head) {
+ if (pin_bytes)
+ btrfs_pin_extent(root, ref->bytenr,
+ ref->num_bytes, 1);
+ mutex_unlock(&head->mutex);
+ }
btrfs_put_delayed_ref(ref);
cond_resched();