linux-kernel - Re: [PATCH 26/29] mm: remove vmalloc_user_node

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Message-ID: <CAMuHMdXO0TV09XYxyxjEA8YdvXVwg1u6Zs=z3PzCVb9Mw5boTQ@mail.gmail.com>
Date:   Mon, 20 Apr 2020 11:26:19 +0200
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     Christoph Hellwig <hch@....de>
Cc:     Andrew Morton <akpm@...ux-foundation.org>,
        "K. Y. Srinivasan" <kys@...rosoft.com>,
        Haiyang Zhang <haiyangz@...rosoft.com>,
        Stephen Hemminger <sthemmin@...rosoft.com>,
        Wei Liu <wei.liu@...nel.org>,
        "the arch/x86 maintainers" <x86@...nel.org>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Laura Abbott <labbott@...hat.com>,
        Sumit Semwal <sumit.semwal@...aro.org>,
        Sakari Ailus <sakari.ailus@...ux.intel.com>,
        Minchan Kim <minchan@...nel.org>,
        Nitin Gupta <ngupta@...are.org>,
        Christophe Leroy <christophe.leroy@....fr>,
        Linux-Arch <linux-arch@...r.kernel.org>,
        linux-hyperv@...r.kernel.org,
        linux-s390 <linux-s390@...r.kernel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        linuxppc-dev <linuxppc-dev@...ts.ozlabs.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        DRI Development <dri-devel@...ts.freedesktop.org>,
        linaro-mm-sig@...ts.linaro.org, Linux MM <linux-mm@...ck.org>,
        Linux IOMMU <iommu@...ts.linux-foundation.org>,
        Johannes Weiner <hannes@...xchg.org>,
        bpf <bpf@...r.kernel.org>, Robin Murphy <robin.murphy@....com>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH 26/29] mm: remove vmalloc_user_node_flags

Hi Christoph,

On Tue, Apr 14, 2020 at 3:22 PM Christoph Hellwig <hch@....de> wrote:
> Open code it in __bpf_map_area_alloc, which is the only caller.  Also
> clean up __bpf_map_area_alloc to have a single vmalloc call with
> slightly different flags instead of the current two different calls.
>
> For this to compile for the nommu case add a __vmalloc_node_range stub
> to nommu.c.

Apparently your nommu-cross-compilers are in quarantaine? ;-)

> Signed-off-by: Christoph Hellwig <hch@....de>
> Acked-by: Peter Zijlstra (Intel) <peterz@...radead.org>
> Acked-by: Johannes Weiner <hannes@...xchg.org>

> --- a/mm/nommu.c
> +++ b/mm/nommu.c
> @@ -150,6 +150,14 @@ void *__vmalloc(unsigned long size, gfp_t gfp_mask)
>  }
>  EXPORT_SYMBOL(__vmalloc);
>
> +void *__vmalloc_node_range(unsigned long size, unsigned long align,
> +               unsigned long start, unsigned long end, gfp_t gfp_mask,
> +               pgprot_t prot, unsigned long vm_flags, int node,
> +               const void *caller)
> +{
> +       return __vmalloc(size, flags);

On Mon, Apr 20, 2020 at 10:39 AM <noreply@...erman.id.au> wrote:
> FAILED linux-next/m5272c3_defconfig/m68k-gcc8 Mon Apr 20, 18:38
>
> http://kisskb.ellerman.id.au/kisskb/buildresult/14213623/
>
> mm/nommu.c:158:25: error: 'flags' undeclared (first use in this function); did you mean 'class'?

"return __vmalloc(size, gfp_mask);", I assume?

Gr{oetje,eeting}s,

                        Geert


--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds