Changelog v1 -> v2: - Handled comments from Vlastimil Babka and Bharata B Rao - Changes only in patch 2 and 4.
Sachin recently reported that linux-next was no more bootable on few powerpc systems. https://lore.kernel.org/linux-next/3381cd91-ab3d-4773-ba04-e7a072a63...@linux.vnet.ibm.com/ # numactl -H available: 2 nodes (0-1) node 0 cpus: node 0 size: 0 MB node 0 free: 0 MB node 1 cpus: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 node 1 size: 35247 MB node 1 free: 30907 MB node distances: node 0 1 0: 10 40 1: 40 10 # Sachin bisected the problem to Commit a75056fc1e7c ("mm/memcontrol.c: allocate shrinker_map on appropriate NUMA node") The root cause analysis showed that mm/slub and powerpc/numa had some shortcomings with respect to offline nodes. This patch series is on top of patches posted at https://lore.kernel.org/linuxppc-dev/20200311110237.5731-1-sri...@linux.vnet.ibm.com/t/#u Cc: Andrew Morton <a...@linux-foundation.org> Cc: linux...@kvack.org Cc: Mel Gorman <mgor...@suse.de> Cc: Michael Ellerman <m...@ellerman.id.au> Cc: Sachin Sant <sach...@linux.vnet.ibm.com> Cc: Michal Hocko <mho...@kernel.org> Cc: Christopher Lameter <c...@linux.com> Cc: linuxppc-dev@lists.ozlabs.org Cc: Joonsoo Kim <iamjoonsoo....@lge.com> Cc: Kirill Tkhai <ktk...@virtuozzo.com> Cc: Vlastimil Babka <vba...@suse.cz> Cc: Srikar Dronamraju <sri...@linux.vnet.ibm.com> Cc: Bharata B Rao <bhar...@linux.ibm.com> Cc: Nathan Lynch <nath...@linux.ibm.com> Srikar Dronamraju (4): mm: Check for node_online in node_present_pages mm/slub: Use mem_node to allocate a new slab mm: Implement reset_numa_mem powerpc/numa: Set fallback nodes for offline nodes arch/powerpc/include/asm/topology.h | 16 ++++++++++++++++ arch/powerpc/kernel/smp.c | 1 + include/asm-generic/topology.h | 3 +++ include/linux/mmzone.h | 6 ++++-- include/linux/topology.h | 7 +++++++ mm/slub.c | 9 +++++---- 6 files changed, 36 insertions(+), 6 deletions(-) -- 2.18.1