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Re: [PATCH v3 2/2] kexec: Provide arch_kexec_protect(unprotect)_crashkres()

From Minfei Huang <mhuang@redhat.com>
Newsgroups linux.kernel
Subject Re: [PATCH v3 2/2] kexec: Provide arch_kexec_protect(unprotect)_crashkres()
Date 2016-01-08 09:50 +0100
Message-ID <qOAUa-4eB-19@gated-at.bofh.it> (permalink)
References <qOv85-7I-1@gated-at.bofh.it> <qOv85-7I-3@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On 01/08/16 at 10:33am, Xunlei Pang wrote:
> +
> +static int
> +kexec_mark_range(unsigned long start, unsigned long end, bool protect)
> +{
> +	struct page *page;
> +	unsigned int nr_pages;
> +
> +	/* For physical range: [start, end] */
> +	if (!end || start > end)
> +		return 0;

This test !end is hard to be understood without the annotation. It is
better to add the comment about it.

Otherwise it looks good for me.

Thanks
Minfei

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Thread

[PATCH v3 1/2] kexec: Introduce a protection mechanism for the crashkernel reserved memory Xunlei Pang <xlpang@redhat.com> - 2016-01-08 03:40 +0100
  [PATCH v3 2/2] kexec: Provide arch_kexec_protect(unprotect)_crashkres() Xunlei Pang <xlpang@redhat.com> - 2016-01-08 03:40 +0100
    Re: [PATCH v3 2/2] kexec: Provide  arch_kexec_protect(unprotect)_crashkres() Minfei Huang <mhuang@redhat.com> - 2016-01-08 09:50 +0100
      Re: [PATCH v3 2/2] kexec: Provide  arch_kexec_protect(unprotect)_crashkres() Xunlei Pang <xlpang@redhat.com> - 2016-01-08 14:30 +0100
        Re: [PATCH v3 2/2] kexec: Provide  arch_kexec_protect(unprotect)_crashkres() Minfei Huang <mhuang@redhat.com> - 2016-01-10 02:10 +0100

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