[PATCH v2] maple_tree: Make maple state reusable after mas_empty_area()

[Edgecombe, Rick P]

On Fri, 2023-05-05 at 22:58 +0800, Peng Zhang wrote:
> Make mas->min and mas->max point to a node range instead of a leaf
> entry
> range. This allows mas to still be usable after mas_empty_area()
> returns.
> Users would get unexpected results from other operations on the maple
> state after calling the affected function.
> 
> Reported-by: "Edgecombe, Rick P" <rick.p.edgecombe at intel.com>
> Reported-by: Tad <support at spotco.us>
> Reported-by: Michael Keyes <mgkeyes at vigovproductions.net>
> Link:
> https://lore.kernel.org/linux-mm/32f156ba80010fd97dbaf0a0cdfc84366608624d.camel@intel.com/
> Link:
> https://lore.kernel.org/linux-mm/e6108286ac025c268964a7ead3aab9899f9bc6e9.camel@spotco.us/
> Fixes: 54a611b60590 ("Maple Tree: add new data structure")
> Cc: <Stable at vger.kernel.org>
> Signed-off-by: Peng Zhang <zhangpeng.00 at bytedance.com>
> ---

Yep, this also works for me. Thanks.