lkml.org 
[lkml]   [2017]   [Oct]   [3]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH v4 4/5] cramfs: add mmap support
On Tue, Oct 03, 2017 at 11:30:50AM -0400, Nicolas Pitre wrote:
> Unless you have a better scheme altogether to suggest of course, given
> the existing constraints.

I still can't understand why this convoluted fault path that finds
vma, attempts with all kinds of races and then tries to update things
like vm_ops is even nessecary.

We have direct mappings of physical address perfectly working in the
DAX code (even with write support!) or in drivers using remap_pfn_range
so a really good explanation why neither scheme can be used is needed
first.

\
 
 \ /
  Last update: 2017-10-03 17:38    [W:0.062 / U:4.352 seconds]
©2003-2017 Jasper Spaans. hosted at Digital OceanAdvertise on this site