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btrfs: always clear PERTRANS metadata during commit

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[ Upstream commit 6e68de0bb0 ]

It is possible to clear a root's IN_TRANS tag from the radix tree, but
not clear its PERTRANS, if there is some error in between. Eliminate
that possibility by moving the free up to where we clear the tag.

Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Boris Burkov <boris@bur.io>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Boris Burkov 2024-03-26 12:01:28 -07:00 committed by Greg Kroah-Hartman
parent 570bff14e7
commit 54403a77c2
1 changed files with 1 additions and 1 deletions
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2
fs/btrfs/transaction.c
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@ -1449,6 +1449,7 @@ static noinline int commit_fs_roots(struct btrfs_trans_handle *trans)
radix_tree_tag_clear(&fs_info->fs_roots_radix,
(unsigned long)root->root_key.objectid,
BTRFS_ROOT_TRANS_TAG);
btrfs_qgroup_free_meta_all_pertrans(root);
spin_unlock(&fs_info->fs_roots_radix_lock);
btrfs_free_log(trans, root);
@ -1473,7 +1474,6 @@ static noinline int commit_fs_roots(struct btrfs_trans_handle *trans)
if (ret2)
return ret2;
spin_lock(&fs_info->fs_roots_radix_lock);
btrfs_qgroup_free_meta_all_pertrans(root);
}
}
spin_unlock(&fs_info->fs_roots_radix_lock);