diff mbox series

[1/3] btrfs-progs: take a ref in the root locking code

Message ID d5f7aa7b21a238ddbbe4196d9c5707846550728f.1692800798.git.josef@toxicpanda.com (mailing list archive)
State New, archived
Headers show
Series btrfs-progs: a couple fixes | expand

Commit Message

Josef Bacik Aug. 23, 2023, 2:27 p.m. UTC 
This code in the kernel not only returns the locked root, but also takes
a reference on the node.  This is important for when we sync ctree.c
into btrfs-progs, it expects that references are held on the root node
after calling these helpers.

Signed-off-by: Josef Bacik <josef@toxicpanda.com>
---
 kernel-shared/locking.c | 3 +++
 1 file changed, 3 insertions(+)
diff mbox series

Patch

diff --git a/kernel-shared/locking.c b/kernel-shared/locking.c
index a41ce06b..bd24571e 100644
--- a/kernel-shared/locking.c
+++ b/kernel-shared/locking.c
@@ -5,15 +5,18 @@ 
 
 struct extent_buffer *btrfs_read_lock_root_node(struct btrfs_root *root)
 {
+	root->node->refs++;
 	return root->node;
 }
 
 struct extent_buffer *btrfs_try_read_lock_root_node(struct btrfs_root *root)
 {
+	root->node->refs++;
 	return root->node;
 }
 
 struct extent_buffer *btrfs_lock_root_node(struct btrfs_root *root)
 {
+	root->node->refs++;
 	return root->node;
 }