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    SubjectRe: [RFC][PATCH 2/2 -mm] kexec based hibernation: kexec restore
    On Mon, 2007-08-27 at 23:31 +0200, Pavel Machek wrote:
    > Hi!
    > > This patch adds writing support for /dev/oldmem. This is used to
    > > restore the memory contents of hibernated system.
    > >
    > > Signed-off-by: Huang Ying <>
    > > +ssize_t write_oldmem_page(unsigned long pfn, const char *buf,
    > > + size_t csize, unsigned long offset, int userbuf)
    > Hmm, int userbuf is only ever set to one... Does it make sense to have
    > write_oldmem_page in the separate file? The onl user is mem.c, perhaps
    > it should go there?

    write_oldmem_page is kept to be consistent with copy_oldmem_page as much
    as possible. The userbuf is used by copy_oldmem_page too, and
    write_oldmem_page is in the same file as copy_oldmem_page. I think the
    consistence between them is reasonable.

    And the copy_oldmem_page/write_oldmem_page is considered to be
    architecture dependent. Now, there are different implementations for
    copy_oldmem_page on different architectures. So I think the
    copy_oldmem_page/write_oldmem_page should be kept in separate file
    instead of go mem.c.

    Best Regards,
    Huang Ying
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      Last update: 2007-08-28 03:17    [W:0.022 / U:5.020 seconds]
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