On Thu, 2015-03-12 at 10:29:19 UTC, Laurent Dufour 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. > > This is done by using a newly assigned PTE bit (_PAGE_SOFT_DIRTY) when > the page is backed in memory, and a new _PAGE_SWP_SOFT_DIRTY bit when > the page is swapped out. > > To introduce a new PTE _PAGE_SOFT_DIRTY bit value common to hash 4k > and hash 64k pte, the bits already defined in hash-*4k.h should be > shifted left by one. > > The _PAGE_SWP_SOFT_DIRTY bit is dynamically put after the swap type in > the swap pte. A check is added to ensure that the bit is not > overwritten by _PAGE_HPTEFLAGS. > > Signed-off-by: Laurent Dufour <lduf...@linux.vnet.ibm.com> > CC: Aneesh Kumar K.V <aneesh.ku...@linux.vnet.ibm.com>
Applied to powerpc next, thanks. https://git.kernel.org/powerpc/c/7207f43665b83ed7881c5111bc cheers _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
