Re: vm_area at addr ffffffffc0800000 is not marked as VM_IOREMAP

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To: Alexei Starovoitov <alexei.starovoitov@xxxxxxxxx>
Subject: Re: vm_area at addr ffffffffc0800000 is not marked as VM_IOREMAP
From: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Date: Fri, 8 Mar 2024 09:24:51 -0800
Cc: Christoph Hellwig <hch@xxxxxxxxxxxxx>, Miguel Ojeda <miguel.ojeda.sandonis@xxxxxxxxx>, Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>, linux-mm <linux-mm@xxxxxxxxx>, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>, Catalin Marinas <catalin.marinas@xxxxxxx>, Will Deacon <will@xxxxxxxxxx>, Linux ARM <linux-arm-kernel@xxxxxxxxxxxxxxxxxxx>, Daniel Borkmann <daniel@xxxxxxxxxxxxx>, bpf <bpf@xxxxxxxxxxxxxxx>, Bjorn Helgaas <bhelgaas@xxxxxxxxxx>, linux-pci@xxxxxxxxxxxxxxx
In-reply-to: <CAADnVQL4JAUz-p-X9aEggeKNpYUqJZrzQKO7N0dnohE0r7mdpg@mail.gmail.com>
References: <CANiq72ka4rir+RTN2FQoT=Vvprp_Ao-CvoYEkSNqtSY+RZj+AA@mail.gmail.com> <CAADnVQL1Zt5dwFv9HPDKDuPEKa6V7gb5j-D-LPWv47hC6mtwgw@mail.gmail.com> <CAADnVQLP=dxBb+RiMGXoaCEuRrbK387J6B+pfzWKF_F=aRgCPQ@mail.gmail.com> <Zeso7eNj1sBhH5zY@infradead.org> <CAADnVQKQumV-0AxGLKX0jQEfa8Z2Bxx2yW8k_1OqGBnD-RqrbA@mail.gmail.com> <ZetEkyW1QgIKwfFz@infradead.org> <CAADnVQL4JAUz-p-X9aEggeKNpYUqJZrzQKO7N0dnohE0r7mdpg@mail.gmail.com>

On Fri, Mar 08, 2024 at 09:20:24AM -0800, Alexei Starovoitov wrote:
> ok. Like the attached patch?

Looks sensibe, but I think the powerpc callers of ioremap_page_range
will need the same treatment.

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