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List:       dm-devel
Subject:    Re: [dm-devel] [PATCH 17/20] dm: get rid of superfluous gfp flags
From:       Mike Snitzer <snitzer () redhat ! com>
Date:       2016-04-29 18:54:52
Message-ID: 20160429185451.GA21865 () redhat ! com
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On Thu, Apr 28 2016 at  9:24am -0400,
Michal Hocko <mhocko@kernel.org> wrote:

> From: Michal Hocko <mhocko@suse.com>
> 
> copy_params seems to be little bit confused about which allocation flags
> to use. It enforces GFP_NOIO even though it uses
> memalloc_noio_{save,restore} which enforces GFP_NOIO at the page
> allocator level automatically (via memalloc_noio_flags). It also
> uses __GFP_REPEAT for the __vmalloc request which doesn't make much
> sense either because vmalloc doesn't rely on costly high order
> allocations. Let's just drop the __GFP_REPEAT and leave the further
> cleanup to later changes.
> 
> Cc: Shaohua Li <shli@kernel.org>
> Cc: Mikulas Patocka <mpatocka@redhat.com>
> Cc: dm-devel@redhat.com
> Signed-off-by: Michal Hocko <mhocko@suse.com>

I've taken this patch for 4.7 but editted the header, see:
https://git.kernel.org/cgit/linux/kernel/git/device-mapper/linux-dm.git/commit/?h=dm-4.7&id=0222c76e96163355620224625c1cd80991086dc7


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