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From: Mel Gorman <mgorman@techsingularity.net>
To: Michal Hocko <mhocko@suse.com>
Cc: NeilBrown <neilb@suse.de>,
	Andrew Morton <akpm@linux-foundation.org>,
	Thierry Reding <thierry.reding@gmail.com>,
	Matthew Wilcox <willy@infradead.org>,
	linux-mm@kvack.org, linux-kernel@vger.kernel.org,
	Mel Gorman <mgorman@suse.de>
Subject: Re: [PATCH] MM: discard __GFP_ATOMIC
Date: Thu, 18 Nov 2021 13:27:53 +0000	[thread overview]
Message-ID: <20211118132753.GB3366@techsingularity.net> (raw)
In-Reply-To: <YZYbXC/ycmif8WIE@dhcp22.suse.cz>

On Thu, Nov 18, 2021 at 10:22:36AM +0100, Michal Hocko wrote:
> [Cc Mel]
> 

I think this patch should be ok. There are few direct users of __GFP_HIGH
and some of them are borderline silly (e.g. mm/shmem.c specifying
__GFP_HIGH|__GFP_NOMEMALLOC) while others just look questionable (
drivers/md/raid10.c seems to assume __GFP_HIGH guarantees allocation
success). Xen appears to be the worst abuser of __GFP_HIGH.

-- 
Mel Gorman
SUSE Labs

  reply	other threads:[~2021-11-18 13:27 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-11-17  4:39 [PATCH] MM: discard __GFP_ATOMIC NeilBrown
2021-11-17 13:18 ` Matthew Wilcox
2021-11-18 23:14   ` NeilBrown
2021-11-19 14:10     ` Matthew Wilcox
2021-11-20 10:51       ` NeilBrown
2021-11-22 16:54         ` Michal Hocko
2021-11-23  4:15           ` NeilBrown
2021-11-23 14:27             ` Michal Hocko
2021-11-18  9:22 ` Michal Hocko
2021-11-18 13:27   ` Mel Gorman [this message]
2021-11-18 23:02     ` NeilBrown
2021-11-22 16:43 ` Michal Hocko
2021-11-23  4:33   ` NeilBrown
2021-11-23 13:41     ` Michal Hocko
2022-04-30 18:30       ` Andrew Morton
2022-05-01 15:45         ` Michal Hocko
2022-09-06  7:35         ` Michal Hocko
2022-09-07  9:47           ` Mel Gorman
2022-10-17  2:38             ` Andrew Morton
2022-10-18 12:11               ` Mel Gorman

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