Re: [PATCH v4 4/5] cramfs: add mmap support

To: Nicolas Pitre <nicolas.pitre@xxxxxxxxxx>
Subject: Re: [PATCH v4 4/5] cramfs: add mmap support
From: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Date: Sun, 1 Oct 2017 01:30:52 -0700
Cc: Alexander Viro <viro@xxxxxxxxxxxxxxxxxx>, linux-mm@xxxxxxxxx, linux-fsdevel@xxxxxxxxxxxxxxx, linux-embedded@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, Chris Brandt <Chris.Brandt@xxxxxxxxxxx>
In-reply-to: <20170927233224.31676-5-nicolas.pitre@linaro.org>
User-agent: Mutt/1.8.3 (2017-05-23)

up_read(&mm->mmap_sem) in the fault path is a still a complete
no-go,

NAK

Follow-Ups:
- Re: [PATCH v4 4/5] cramfs: add mmap support
  - From: Nicolas Pitre

References:
- [PATCH v4 0/5] cramfs refresh for embedded usage
  - From: Nicolas Pitre
- [PATCH v4 4/5] cramfs: add mmap support
  - From: Nicolas Pitre