[PATCH] erofs: fix erofs_insert_workgroup() lockref usage

[Chao Yu]

On 2023/10/31 14:05, Gao Xiang wrote:
> As Linus pointed out [1], lockref_put_return() is fundamentally
> designed to be something that can fail.  It behaves as a fastpath-only
> thing, and the failure case needs to be handled anyway.
> 
> Actually, since the new pcluster was just allocated without being
> populated, it won't be accessed by others until it is inserted into
> XArray, so lockref helpers are actually unneeded here.
> 
> Let's just set the proper reference count on initializing.
> 
> [1] https://lore.kernel.org/r/CAHk-=whCga8BeQnJ3ZBh_Hfm9ctba_wpF444LpwRybVNMzO6Dw@mail.gmail.com
> Fixes: 7674a42f35ea ("erofs: use struct lockref to replace handcrafted approach")
> Signed-off-by: Gao Xiang <hsiangkao at linux.alibaba.com>

Reviewed-by: Chao Yu <chao at kernel.org>

Thanks,