Re: [PATCH] mm:vmalloc add vm_struct for vm_map_ram
- Date: Thu, 8 Nov 2018 14:52:39 -0800
- From: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
- Subject: Re: [PATCH] mm:vmalloc add vm_struct for vm_map_ram
On Thu, 8 Nov 2018 19:14:49 +0800 Zhaoyang Huang <huangzhaoyang@xxxxxxxxx> wrote:
> There is no caller and pages information etc for the area which is
> created by vm_map_ram as well as the page count > VMAP_MAX_ALLOC.
> Add them on in this commit.
Well I can kind of see what this is doing - it increases the amount of
info in /proc/vmallocinfo for regions which were created by
But I'd like to hear it in your words, please. What problem are we
trying to solve? Why is it actually a problem? Why is the additional
information considered useful, etc?
It would help a lot if the changelog were to include before-and-after
examples from the /proc/vmallocinfo output.