The patch titled
Subject: mm-memory_hotplug-make-sure-the-pfn-is-aligned-to-the-order-when-onlining-fix
has been added to the -mm tree. Its filename is
mm-memory_hotplug-make-sure-the-pfn-is-aligned-to-the-order-when-onlining-fix.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-memory_hotplug-make-sure-the-pfn-is-aligned-to-the-order-when-onlining-fix.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-memory_hotplug-make-sure-the-pfn-is-aligned-to-the-order-when-onlining-fix.patch
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------------------------------------------------------
From: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Subject: mm-memory_hotplug-make-sure-the-pfn-is-aligned-to-the-order-when-onlining-fix
add WARN_ON_ONCE()
Cc: Arun KS <arunks@xxxxxxxxxxxxxx>
Cc: Dan Williams <dan.j.williams@xxxxxxxxx>
Cc: David Hildenbrand <david@xxxxxxxxxx>
Cc: Michal Hocko <mhocko@xxxxxxxx>
Cc: Oscar Salvador <osalvador@xxxxxxx>
Cc: Pavel Tatashin <pasha.tatashin@xxxxxxxxxx>
Cc: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
Cc: Borislav Petkov <bp@xxxxxxx>
Cc: Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: Nadav Amit <namit@xxxxxxxxxx>
Cc: Wei Yang <richardw.yang@xxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/memory_hotplug.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/mm/memory_hotplug.c~mm-memory_hotplug-make-sure-the-pfn-is-aligned-to-the-order-when-onlining-fix
+++ a/mm/memory_hotplug.c
@@ -647,7 +647,7 @@ static int online_pages_range(unsigned l
for (pfn = start_pfn; pfn < end_pfn; pfn += 1ul << order) {
order = min(MAX_ORDER - 1, get_order(PFN_PHYS(end_pfn - pfn)));
/* __free_pages_core() wants pfns to be aligned to the order */
- if (unlikely(!IS_ALIGNED(pfn, 1ul << order)))
+ if (WARN_ON_ONCE(!IS_ALIGNED(pfn, 1ul << order)))
order = 0;
(*online_page_callback)(pfn_to_page(pfn), order);
}
_
Patches currently in -mm which might be from akpm@xxxxxxxxxxxxxxxxxxxx are
ocfs2-clear-zero-in-unaligned-direct-io-checkpatch-fixes.patch
fs-ocfs2-fix-possible-null-pointer-dereferences-in-ocfs2_xa_prepare_entry-fix.patch
mm.patch
mm-kmemleak-use-the-memory-pool-for-early-allocations-checkpatch-fixes.patch
mm-kmemleak-use-the-memory-pool-for-early-allocations-checkpatch-fixes-fix.patch
mm-introduce-page_shift-fix.patch
mm-throttle-allocators-when-failing-reclaim-over-memoryhigh-fix.patch
mm-throttle-allocators-when-failing-reclaim-over-memoryhigh-fix-fix.patch
mm-throttle-allocators-when-failing-reclaim-over-memoryhigh-fix-fix-fix.patch
mm-memory_hotplug-remove-move_pfn_range-fix.patch
mm-memory_hotplug-make-sure-the-pfn-is-aligned-to-the-order-when-onlining-fix.patch
mm-compaction-clear-total_migratefree_scanned-before-scanning-a-new-zone-fix-fix.patch
mm-compaction-clear-total_migratefree_scanned-before-scanning-a-new-zone-fix-2-fix.patch
mm-oom-avoid-printk-iteration-under-rcu-fix.patch
mm-oom_killer-add-task-uid-to-info-message-on-an-oom-kill-fix.patch
psi-annotate-refault-stalls-from-io-submission-fix.patch
psi-annotate-refault-stalls-from-io-submission-fix-2.patch
mm-mmapc-refine-find_vma_prev-with-rb_last-fix.patch
dev-kmem-debug-preadv-progress-fix.patch
dev-kmem-debug-preadv-progress-fix-fix.patch
diff-sucks.patch
drivers-tty-serial-sh-scic-suppress-warning.patch
kernel-forkc-export-kernel_thread-to-modules.patch
