Re: [PATCH 6.12.y] btrfs: fix block group refcount race in btrfs_create_pending_block_groups()

[Sasha Levin <sashal@kernel.org>]

[ Sasha's backport helper bot ]

Hi,

✅ All tests passed successfully. No issues detected.
No action required from the submitter.

The upstream commit SHA1 provided is correct: 2d8e5168d48a91e7a802d3003e72afb4304bebfa

WARNING: Author mismatch between patch and upstream commit:
Backport author: <alvalan9@foxmail.com>
Commit author: Boris Burkov <boris@bur.io>

Status in newer kernel trees:
6.15.y | Present (exact SHA1)

Note: The patch differs from the upstream commit:
---
1:  2d8e5168d48a ! 1:  7e8e9017eb32 btrfs: fix block group refcount race in btrfs_create_pending_block_groups()
    @@ Metadata
      ## Commit message ##
         btrfs: fix block group refcount race in btrfs_create_pending_block_groups()
     
    +    [ Upstream commit 2d8e5168d48a91e7a802d3003e72afb4304bebfa ]
    +
         Block group creation is done in two phases, which results in a slightly
         unintuitive property: a block group can be allocated/deallocated from
         after btrfs_make_block_group() adds it to the space_info with
    @@ Commit message
         Reviewed-by: Filipe Manana <fdmanana@suse.com>
         Signed-off-by: Boris Burkov <boris@bur.io>
         Signed-off-by: David Sterba <dsterba@suse.com>
    +    Signed-off-by: Alva Lan <alvalan9@foxmail.com>
     
      ## fs/btrfs/block-group.c ##
     @@ fs/btrfs/block-group.c: void btrfs_create_pending_block_groups(struct btrfs_trans_handle *trans)

---

Results of testing on various branches:

| Branch                    | Patch Apply | Build Test |
|---------------------------|-------------|------------|
| origin/linux-6.12.y       | Success     | Success    |