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erofs: relinquish volume with mutex held

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[ Upstream commit 7032809a44d752b9e2275833787e0aa88a7540af ]

Relinquish fscache volume with mutex held.  Otherwise if a new domain is
registered when the old domain with the same name gets removed from the
list but not relinquished yet, fscache may complain the collision.

Fixes: 8b7adf1dff3d ("erofs: introduce fscache-based domain")
Signed-off-by: Jingbo Xu <jefflexu@linux.alibaba.com>
Reviewed-by: Jia Zhu <zhujia.zj@bytedance.com>
Link: https://lore.kernel.org/r/20230209063913.46341-4-jefflexu@linux.alibaba.com
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Jingbo Xu 2023-02-09 14:39:12 +08:00 committed by Greg Kroah-Hartman
parent 1cae3dd88e
commit afc9831894
1 changed files with 1 additions and 1 deletions
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2
fs/erofs/fscache.c
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@ -398,8 +398,8 @@ static void erofs_fscache_domain_put(struct erofs_domain *domain)
kern_unmount(erofs_pseudo_mnt);
erofs_pseudo_mnt = NULL;
}
mutex_unlock(&erofs_domain_list_lock);
fscache_relinquish_volume(domain->volume, NULL, false);
mutex_unlock(&erofs_domain_list_lock);
kfree(domain->domain_id);
kfree(domain);
return;