Re: [PATCH v2 3/4] mm: BUG_ON to avoid NULL deference while __GFP_NOFAIL fails

To: Barry Song <21cnbao@xxxxxxxxx>
Subject: Re: [PATCH v2 3/4] mm: BUG_ON to avoid NULL deference while __GFP_NOFAIL fails
From: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Date: Wed, 31 Jul 2024 09:28:01 -0700
Cc: akpm@xxxxxxxxxxxxxxxxxxxx, linux-mm@xxxxxxxxx, 42.hyeyoo@xxxxxxxxx, cl@xxxxxxxxx, hailong.liu@xxxxxxxx, hch@xxxxxxxxxxxxx, iamjoonsoo.kim@xxxxxxx, lstoakes@xxxxxxxxx, mhocko@xxxxxxxx, penberg@xxxxxxxxxx, rientjes@xxxxxxxxxx, roman.gushchin@xxxxxxxxx, torvalds@xxxxxxxxxxxxxxxxxxxx, urezki@xxxxxxxxx, v-songbaohua@xxxxxxxx, vbabka@xxxxxxx, virtualization@xxxxxxxxxxxxxxx, Kees Cook <kees@xxxxxxxxxx>
In-reply-to: <20240731000155.109583-4-21cnbao@gmail.com>
References: <20240731000155.109583-1-21cnbao@gmail.com> <20240731000155.109583-4-21cnbao@gmail.com>

Looks good (inline or not):

Reviewed-by: Christoph Hellwig <hch@xxxxxx>

References:
- [PATCH v2 0/4] mm: clarify nofail memory allocation
  - From: Barry Song
- [PATCH v2 3/4] mm: BUG_ON to avoid NULL deference while __GFP_NOFAIL fails
  - From: Barry Song