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SubjectRe: [PATCH] mips/mm: Add page soft dirty tracking
On Tue, Apr 21, 2020 at 05:15:27PM +0800, Guoyun Sun wrote:
> User space checkpoint and restart tool (CRIU) needs the page's change
> to be soft tracked. This allows to do a pre checkpoint and then dump
> only touched pages.
>
> Signed-off-by: Guoyun Sun <sunguoyun@loongson.cn>
> ---
> arch/mips/Kconfig | 1 +
> arch/mips/include/asm/pgtable-bits.h | 8 ++++--
> arch/mips/include/asm/pgtable.h | 48 ++++++++++++++++++++++++++++++++++--

this breaks all 32bit builds where CPU support RIXI, because it overflows
pgtable_bits.

Thomas.

--
Crap can work. Given enough thrust pigs will fly, but it's not necessarily a
good idea. [ RFC1925, 2.3 ]

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