Simplify the error handling in __btrfs_run_delayed_refs by breaking out
the code used to return a head back to the delayed_refs tree for
processing into a helper function.
Signed-off-by: Josef Bacik <jba...@fb.com>
---
fs/btrfs/extent-tree.c | 30 +++++++++++++++---------------
1 file changed, 15 insertions(+), 15 deletions(-)
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 00d86c8afaef..f356b4a66186 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -2576,6 +2576,17 @@ select_delayed_ref(struct btrfs_delayed_ref_head *head)
return ref;
}
+static void
+unselect_delayed_ref_head(struct btrfs_delayed_ref_root *delayed_refs,
+ struct btrfs_delayed_ref_head *head)
+{
+ spin_lock(&delayed_refs->lock);
+ head->processing = 0;
+ delayed_refs->num_heads_ready++;
+ spin_unlock(&delayed_refs->lock);
+ btrfs_delayed_ref_unlock(head);
+}
+
/*
* Returns 0 on success or if called with an already aborted transaction.
* Returns -ENOMEM or -EIO on failure and will abort the transaction.
@@ -2649,11 +2660,7 @@ static noinline int __btrfs_run_delayed_refs(struct
btrfs_trans_handle *trans,
if (ref && ref->seq &&
btrfs_check_delayed_seq(fs_info, delayed_refs, ref->seq)) {
spin_unlock(&locked_ref->lock);
- spin_lock(&delayed_refs->lock);
- locked_ref->processing = 0;
- delayed_refs->num_heads_ready++;
- spin_unlock(&delayed_refs->lock);
- btrfs_delayed_ref_unlock(locked_ref);
+ unselect_delayed_ref_head(delayed_refs, locked_ref);
locked_ref = NULL;
cond_resched();
count++;
@@ -2699,14 +2706,11 @@ static noinline int __btrfs_run_delayed_refs(struct
btrfs_trans_handle *trans,
*/
if (must_insert_reserved)
locked_ref->must_insert_reserved = 1;
- spin_lock(&delayed_refs->lock);
- locked_ref->processing = 0;
- delayed_refs->num_heads_ready++;
- spin_unlock(&delayed_refs->lock);
+ unselect_delayed_ref_head(delayed_refs,
+ locked_ref);
btrfs_debug(fs_info,
"run_delayed_extent_op
returned %d",
ret);
- btrfs_delayed_ref_unlock(locked_ref);
return ret;
}
continue;
@@ -2764,11 +2768,7 @@ static noinline int __btrfs_run_delayed_refs(struct
btrfs_trans_handle *trans,
btrfs_free_delayed_extent_op(extent_op);
if (ret) {
- spin_lock(&delayed_refs->lock);
- locked_ref->processing = 0;
- delayed_refs->num_heads_ready++;
- spin_unlock(&delayed_refs->lock);
- btrfs_delayed_ref_unlock(locked_ref);
+ unselect_delayed_ref_head(delayed_refs, locked_ref);
btrfs_put_delayed_ref(ref);
btrfs_debug(fs_info, "run_one_delayed_ref returned %d",
ret);
--
2.7.4
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