linux-kernel - Re: [PATCH 0/3] vmalloc enhancements

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Message-ID: <20190211190822.GA14443@cmpxchg.org>
Date:   Mon, 11 Feb 2019 14:08:22 -0500
From:   Johannes Weiner <hannes@...xchg.org>
To:     Roman Gushchin <guroan@...il.com>
Cc:     linux-mm@...ck.org, Matthew Wilcox <willy@...radead.org>,
        Michal Hocko <mhocko@...e.com>, linux-kernel@...r.kernel.org,
        kernel-team@...com, Roman Gushchin <guro@...com>,
        Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH 0/3] vmalloc enhancements

These slipped through the cracks. +CC Andrew directly.
Andrew, if it's not too late yet, could you consider them for 5.1?

On Wed, Dec 19, 2018 at 09:37:48AM -0800, Roman Gushchin wrote:
> The patchset contains few changes to the vmalloc code, which are
> leading to some performance gains and code simplification.
> 
> Also, it exports a number of pages, used by vmalloc(),
> in /proc/meminfo.
> 
> Patch (1) removes some redundancy on __vunmap().
> Patch (2) separates memory allocation and data initialization
>   in alloc_vmap_area()
> Patch (3) adds vmalloc counter to /proc/meminfo.
> 
> RFC->v1:
>   - removed bogus empty lines (suggested by Matthew Wilcox)
>   - made nr_vmalloc_pages static (suggested by Matthew Wilcox)
>   - dropped patch 3 from RFC patchset, will post later with
>   some other changes
>   - dropped RFC
> 
> Roman Gushchin (3):
>   mm: refactor __vunmap() to avoid duplicated call to find_vm_area()
>   mm: separate memory allocation and actual work in alloc_vmap_area()
>   mm: show number of vmalloc pages in /proc/meminfo
> 
>  fs/proc/meminfo.c       |   2 +-
>  include/linux/vmalloc.h |   2 +
>  mm/vmalloc.c            | 107 ++++++++++++++++++++++++++--------------
>  3 files changed, 73 insertions(+), 38 deletions(-)
> 
> -- 
> 2.19.2
>