The patch titled
Subject: mm-vmstat-skip-reporting-offline-pages-in-pagetypeinfo-fix
has been added to the -mm tree. Its filename is
mm-vmstat-skip-reporting-offline-pages-in-pagetypeinfo-fix.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-vmstat-skip-reporting-offline-pages-in-pagetypeinfo-fix.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-vmstat-skip-reporting-offline-pages-in-pagetypeinfo-fix.patch
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------------------------------------------------------
From: Michal Hocko <mhocko@xxxxxxxx>
Subject: mm-vmstat-skip-reporting-offline-pages-in-pagetypeinfo-fix
0-day has reported
In file included from arch/x86/include/asm/page.h:75:0,
from arch/x86/include/asm/thread_info.h:11,
from include/linux/thread_info.h:37,
from arch/x86/include/asm/preempt.h:6,
from include/linux/preempt.h:80,
from include/linux/spinlock.h:50,
from include/linux/wait.h:8,
from include/linux/fs.h:5,
from mm/vmstat.c:12:
mm/vmstat.c: In function 'pagetypeinfo_showblockcount_print':
>> include/asm-generic/memory_model.h:54:52: warning: 'page' is used uninitialized in this function [-Wuninitialized]
#define __page_to_pfn(page) (unsigned long)((page) - vmemmap)
^
mm/vmstat.c:1224:16: note: 'page' was declared here
struct page *page;
^~~~
Link: http://lkml.kernel.org/r/20170519072225.GA13041@xxxxxxxxxxxxxx
Signed-off-by: Michal Hocko <mhocko@xxxxxxxx>
Reported-by: kbuild test robot <fengguang.wu@xxxxxxxxx>
Cc: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/vmstat.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff -puN mm/vmstat.c~mm-vmstat-skip-reporting-offline-pages-in-pagetypeinfo-fix mm/vmstat.c
--- a/mm/vmstat.c~mm-vmstat-skip-reporting-offline-pages-in-pagetypeinfo-fix
+++ a/mm/vmstat.c
@@ -1223,7 +1223,8 @@ static void pagetypeinfo_showblockcount_
for (pfn = start_pfn; pfn < end_pfn; pfn += pageblock_nr_pages) {
struct page *page;
- if (!pfn_to_online_page(pfn))
+ page = pfn_to_online_page(pfn);
+ if (!page)
continue;
/* Watch for unexpected holes punched in the memmap */
_
Patches currently in -mm which might be from mhocko@xxxxxxxx are
include-linux-gfph-fix-___gfp_nolockdep-value.patch
mm-clarify-why-we-want-kmalloc-before-falling-backto-vmallock.patch
mm-remove-return-value-from-init_currently_empty_zone.patch
mm-memory_hotplug-use-node-instead-of-zone-in-can_online_high_movable.patch
mm-drop-page_initialized-check-from-get_nid_for_pfn.patch
mm-memory_hotplug-get-rid-of-is_zone_device_section.patch
mm-memory_hotplug-split-up-register_one_node.patch
mm-memory_hotplug-consider-offline-memblocks-removable.patch
mm-consider-zone-which-is-not-fully-populated-to-have-holes.patch
mm-consider-zone-which-is-not-fully-populated-to-have-holes-fix.patch
mm-compaction-skip-over-holes-in-__reset_isolation_suitable.patch
mm-__first_valid_page-skip-over-offline-pages.patch
mm-vmstat-skip-reporting-offline-pages-in-pagetypeinfo.patch
mm-vmstat-skip-reporting-offline-pages-in-pagetypeinfo-fix.patch
mm-memory_hotplug-do-not-associate-hotadded-memory-to-zones-until-online.patch
mm-memory_hotplug-replace-for_device-by-want_memblock-in-arch_add_memory.patch
mm-memory_hotplug-fix-the-section-mismatch-warning.patch
mm-memory_hotplug-remove-unused-cruft-after-memory-hotplug-rework.patch
mm-adaptive-hash-table-scaling-fix.patch
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