The patch titled
From: Dan Williams <dan.j.williams@xxxxxxxxx>
has been added to the -mm tree. Its filename is
mm-fix-mixed-zone-detection-in-devm_memremap_pages-fix.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-fix-mixed-zone-detection-in-devm_memremap_pages-fix.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-fix-mixed-zone-detection-in-devm_memremap_pages-fix.patch
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------------------------------------------------------
From: Dan Williams <dan.j.williams@xxxxxxxxx>
Subject: mm: fix 'size' alignment in devm_memremap_pages()
We need to align the end address, not just the size.
Signed-off-by: Dan Williams <dan.j.williams@xxxxxxxxx>
Cc: Toshi Kani <toshi.kani@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
kernel/memremap.c | 12 +++++++-----
1 file changed, 7 insertions(+), 5 deletions(-)
diff -puN kernel/memremap.c~mm-fix-mixed-zone-detection-in-devm_memremap_pages-fix kernel/memremap.c
--- a/kernel/memremap.c~mm-fix-mixed-zone-detection-in-devm_memremap_pages-fix
+++ a/kernel/memremap.c
@@ -270,14 +270,16 @@ struct dev_pagemap *find_dev_pagemap(res
void *devm_memremap_pages(struct device *dev, struct resource *res,
struct percpu_ref *ref, struct vmem_altmap *altmap)
{
- resource_size_t align_start = res->start & ~(SECTION_SIZE - 1);
- resource_size_t align_size = ALIGN(resource_size(res), SECTION_SIZE);
- int is_ram = region_intersects(align_start, align_size, "System RAM");
- resource_size_t key, align_end;
+ resource_size_t key, align_start, align_size, align_end;
struct dev_pagemap *pgmap;
struct page_map *page_map;
+ int error, nid, is_ram;
unsigned long pfn;
- int error, nid;
+
+ align_start = res->start & ~(SECTION_SIZE - 1);
+ align_size = ALIGN(res->start + resource_size(res), SECTION_SIZE)
+ - align_start;
+ is_ram = region_intersects(align_start, align_size, "System RAM");
if (is_ram == REGION_MIXED) {
WARN_ONCE(1, "%s attempted on mixed region %pr\n",
_
Patches currently in -mm which might be from dan.j.williams@xxxxxxxxx are
list-kill-list_force_poison.patch
mm-fix-mixed-zone-detection-in-devm_memremap_pages.patch
mm-fix-mixed-zone-detection-in-devm_memremap_pages-fix.patch
mm-exclude-zone_device-from-gfp_zone_table.patch
mm-zone_device-depends-on-sparsemem_vmemmap.patch
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