The patch titled
memory hotplug: align memmap to page size
has been added to the -mm tree. Its filename is
memory-hotplug-align-memmap-to-page-size.patch
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Subject: memory hotplug: align memmap to page size
From: Yasunori Goto <y-goto@xxxxxxxxxxxxxx>
To free memmap more easily, this patch aligns it to page size. The bootmem
allocater may mix some objects into single pages. This is not good for
freeing the memmap of memory during hot-remove.
Signed-off-by: Yasunori Goto <y-goto@xxxxxxxxxxxxxx>
Cc: Yinghai Lu <yhlu.kernel@xxxxxxxxx>
Cc: Badari Pulavarty <pbadari@xxxxxxxxxx>
Cc: Christoph Lameter <clameter@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/sparse.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff -puN mm/sparse.c~memory-hotplug-align-memmap-to-page-size mm/sparse.c
--- a/mm/sparse.c~memory-hotplug-align-memmap-to-page-size
+++ a/mm/sparse.c
@@ -263,8 +263,8 @@ struct page __init *sparse_mem_map_popul
if (map)
return map;
- map = alloc_bootmem_node(NODE_DATA(nid),
- sizeof(struct page) * PAGES_PER_SECTION);
+ map = alloc_bootmem_pages_node(NODE_DATA(nid),
+ PAGE_ALIGN(sizeof(struct page) * PAGES_PER_SECTION));
return map;
}
#endif /* !CONFIG_SPARSEMEM_VMEMMAP */
_
Patches currently in -mm which might be from y-goto@xxxxxxxxxxxxxx are
hotplug-memory-remove-generic-__remove_pages-support.patch
powerpc-hotplug-memory-notifications-for-ppc.patch
powerpc-update-lmb-for-hotplug-memory-add-remove.patch
powerpc-provide-walk_memory_resource-for-ppc.patch
block-fix-memory-hotplug-and-bouncing-in-block-layer.patch
mm-make-mem_map-allocation-continuous-v2.patch
mm-fix-alloc_bootmem_core-to-use-fast-searching-for-all-nodes.patch
mm-offset-align-in-alloc_bootmem.patch
mm-make-reserve_bootmem-can-crossed-the-nodes.patch
memory-hotplug-register-section-node-id-to-free.patch
memory-hotplug-align-memmap-to-page-size.patch
memory-hotplug-create-alloc_bootmem_section.patch
memory-hotplug-allocate-usemap-on-the-section-with-pgdat.patch
memory-hotplug-free-memmaps-allocated-by-bootmem.patch
ipc-scale-msgmni-to-the-amount-of-lowmem.patch
ipc-scale-msgmni-to-the-number-of-ipc-namespaces.patch
ipc-define-the-slab_memory_callback-priority-as-a-constant.patch
ipc-recompute-msgmni-on-memory-add--remove.patch
ipc-invoke-the-ipcns-notifier-chain-as-a-work-item.patch
ipc-recompute-msgmni-on-ipc-namespace-creation-removal.patch
ipc-do-not-recompute-msgmni-anymore-if-explicitly-set-by-user.patch
ipc-re-enable-msgmni-automatic-recomputing-msgmni-if-set-to-negative.patch
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