Memory unplug has a few bugs which I had attempted to fix ealier at https://lists.ozlabs.org/pipermail/linuxppc-dev/2019-July/194087.html
Now with Leonardo's patch for PAPR changes that add a separate flag bit to LMB flags for explicitly identifying hot-removable memory (https://lore.kernel.org/linuxppc-dev/f55a7b65a43cc9dc7b22385cf9960f8b11d5ce2e.ca...@linux.ibm.com/T/#t), a few other issues around memory unplug on radix can be fixed. This series is a combination of those fixes. This series works on top of above mentioned Leonardo's patch. Bharata B Rao (5): powerpc/pseries/hotplug-memory: Set DRCONF_MEM_HOTREMOVABLE for hot-plugged mem powerpc/mm/radix: Create separate mappings for hot-plugged memory powerpc/mm/radix: Fix PTE/PMD fragment count for early page table mappings powerpc/mm/radix: Free PUD table when freeing pagetable powerpc/mm/radix: Remove split_kernel_mapping() arch/powerpc/include/asm/book3s/64/pgalloc.h | 11 +- arch/powerpc/include/asm/book3s/64/radix.h | 1 + arch/powerpc/include/asm/sparsemem.h | 1 + arch/powerpc/mm/book3s64/pgtable.c | 31 ++- arch/powerpc/mm/book3s64/radix_pgtable.c | 186 +++++++++++------- arch/powerpc/mm/mem.c | 5 + arch/powerpc/mm/pgtable-frag.c | 9 +- .../platforms/pseries/hotplug-memory.c | 6 +- 8 files changed, 167 insertions(+), 83 deletions(-) -- 2.21.0
