linux-kernel - Re: [PATCH] mm: make __GFP_SKIP_ZERO visible to skip zero operation

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Message-ID: <ZPCEim0AZG5hTSYH@casper.infradead.org>
Date:   Thu, 31 Aug 2023 13:16:10 +0100
From:   Matthew Wilcox <willy@...radead.org>
To:     "zhaoyang.huang" <zhaoyang.huang@...soc.com>
Cc:     Andrew Morton <akpm@...ux-foundation.org>, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org,
        Zhaoyang Huang <huangzhaoyang@...il.com>, ke.wang@...soc.com
Subject: Re: [PATCH] mm: make __GFP_SKIP_ZERO visible to skip zero operation

On Thu, Aug 31, 2023 at 06:52:52PM +0800, zhaoyang.huang wrote:
> From: Zhaoyang Huang <zhaoyang.huang@...soc.com>
> 
> There is no explicit gfp flags to let the allocation skip zero
> operation when CONFIG_INIT_ON_ALLOC_DEFAULT_ON=y. I would like to make
> __GFP_SKIP_ZERO be visible even if kasan is not configured.

This bypasses a security feature so you're going to have to do a little
better than "I want it".

> Signed-off-by: Zhaoyang Huang <zhaoyang.huang@...soc.com>
> ---
>  include/linux/gfp_types.h | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
>  mode change 100644 => 100755 include/linux/gfp_types.h

What is this garbage?  Header files should not be executable.