linux-kernel - Re: [PATCH -mm -v3] mm, swap: Use kvzalloc to allocate some swap data structure

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Message-ID: <1491570407.8850.164.camel@redhat.com>
Date:   Fri, 07 Apr 2017 09:06:47 -0400
From:   Rik van Riel <riel@...hat.com>
To:     "Huang, Ying" <ying.huang@...el.com>,
        Andrew Morton <akpm@...ux-foundation.org>
Cc:     linux-mm@...ck.org, linux-kernel@...r.kernel.org,
        Dave Hansen <dave.hansen@...el.com>,
        Hugh Dickins <hughd@...gle.com>, Shaohua Li <shli@...nel.org>,
        Minchan Kim <minchan@...nel.org>
Subject: Re: [PATCH -mm -v3] mm, swap: Use kvzalloc to allocate some swap
 data structure

On Fri, 2017-04-07 at 14:49 +0800, Huang, Ying wrote:
> From: Huang Ying <ying.huang@...el.com>
> 
> Now vzalloc() is used in swap code to allocate various data
> structures, such as swap cache, swap slots cache, cluster info, etc.
> Because the size may be too large on some system, so that normal
> kzalloc() may fail.  But using kzalloc() has some advantages,

> Signed-off-by: Huang Ying <ying.huang@...el.com>
> Acked-by: Tim Chen <tim.c.chen@...el.com>
> Acked-by: Michal Hocko <mhocko@...e.com>
> Cc: Dave Hansen <dave.hansen@...el.com>
> Cc: Hugh Dickins <hughd@...gle.com>
> Cc: Shaohua Li <shli@...nel.org>
> Cc: Minchan Kim <minchan@...nel.org>
> Cc: Rik van Riel <riel@...hat.com>
> 
Acked-by: Rik van Riel <riel@...hat.com>