From: josef@toxicpanda.com
To: kernel-team@fb.com, linux-btrfs@vger.kernel.org
Cc: Josef Bacik <jbacik@fb.com>
Subject: [PATCH 01/10] btrfs: add a helper to return a head ref
Date: Mon, 11 Sep 2017 17:12:27 -0400 [thread overview]
Message-ID: <1505164356-13474-2-git-send-email-jbacik@fb.com> (raw)
In-Reply-To: <1505164356-13474-1-git-send-email-jbacik@fb.com>
From: Josef Bacik <jbacik@fb.com>
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 <jbacik@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 b68fb8c..636aac0 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -2508,6 +2508,17 @@ 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.
@@ -2581,11 +2592,7 @@ 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++;
@@ -2631,14 +2638,11 @@ 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;
@@ -2696,11 +2700,7 @@ 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
next prev parent reply other threads:[~2017-09-11 21:12 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-09-11 21:12 [RFC][0/10] Cleanup and enhance delayed refs josef
2017-09-11 21:12 ` josef [this message]
2017-09-11 21:12 ` [PATCH 02/10] btrfs: move extent_op cleanup to a helper josef
2017-09-11 21:12 ` [PATCH 03/10] btrfs: breakout empty head " josef
2017-09-11 21:12 ` [PATCH 04/10] btrfs: move ref_mod modification into the if (ref) logic josef
2017-09-11 21:12 ` [PATCH 05/10] btrfs: move all ref head cleanup to the helper function josef
2017-09-11 21:12 ` [PATCH 06/10] btrfs: remove delayed_ref_node from ref_head josef
2017-09-11 21:12 ` [PATCH 07/10] btrfs: remove type argument from comp_tree_refs josef
2017-09-12 16:08 ` Timofey Titovets
2017-09-11 21:12 ` [PATCH 08/10] btrfs: switch args for comp_*_refs josef
2017-09-12 16:21 ` Timofey Titovets
2017-09-12 16:35 ` Timofey Titovets
2017-09-11 21:12 ` [PATCH 09/10] btrfs: add a comp_refs() helper josef
2017-09-11 21:12 ` [PATCH 10/10] btrfs: track refs in a rb_tree instead of a list josef
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