The patch titled
Subject: mm/page_alloc.c: set a zone_start_pfn value in zone_spanned_pages_in_node
has been added to the -mm tree. Its filename is
mm-calculate-zone_start_pfn-at-zone_spanned_pages_in_node-fix.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-calculate-zone_start_pfn-at-zone_spanned_pages_in_node-fix.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-calculate-zone_start_pfn-at-zone_spanned_pages_in_node-fix.patch
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/SubmitChecklist when testing your code ***
The -mm tree is included into linux-next and is updated
there every 3-4 working days
------------------------------------------------------
From: Arnd Bergmann <arnd@xxxxxxxx>
Subject: mm/page_alloc.c: set a zone_start_pfn value in zone_spanned_pages_in_node
We got a new build warning in linux-next:
mm/page_alloc.c: In function 'free_area_init_node':
mm/page_alloc.c:5278:25: warning: 'zone_start_pfn' may be used uninitialized in this function [-Wmaybe-uninitialized]
zone->zone_start_pfn = zone_start_pfn;
mm/page_alloc.c:5265:17: note: 'zone_start_pfn' was declared here
unsigned long zone_start_pfn, zone_end_pfn;
The code indeed looks wrong, but this is just a guess of what the
fix might be: I have not looked it in detail, so please treat this
as a bug report.
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
Cc: Taku Izumi <izumi.taku@xxxxxxxxxxxxxx>
Cc: Tony Luck <tony.luck@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/page_alloc.c | 2 ++
1 file changed, 2 insertions(+)
diff -puN mm/page_alloc.c~mm-calculate-zone_start_pfn-at-zone_spanned_pages_in_node-fix mm/page_alloc.c
--- a/mm/page_alloc.c~mm-calculate-zone_start_pfn-at-zone_spanned_pages_in_node-fix
+++ a/mm/page_alloc.c
@@ -5013,6 +5013,8 @@ static inline unsigned long __meminit zo
unsigned long *zone_end_pfn,
unsigned long *zones_size)
{
+ *zone_start_pfn = node_start_pfn;
+ *zone_end_pfn = node_end_pfn;
return zones_size[zone_type];
}
_
Patches currently in -mm which might be from arnd@xxxxxxxx are
include-define-__phys_to_pfn-as-phys_pfn-fix-2.patch
mm-calculate-zone_start_pfn-at-zone_spanned_pages_in_node-fix.patch
mm-introduce-kernelcore=mirror-option-fix-2.patch
arm-thp-remove-infrastructure-for-handling-splitting-pmds-fix.patch
mm-printk-introduce-new-format-string-for-flags-fix.patch
printk-nmi-generic-solution-for-safe-printk-in-nmi-v4-fix.patch
memstick-use-sector_div-instead-of-do_div.patch
mm-memcontrol-introduce-config_memcg_legacy_kmem-fix.patch
mm-memcontrol-clean-up-alloc-online-offline-free-functions-fix-2.patch
--
To unsubscribe from this list: send the line "unsubscribe mm-commits" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
