The patch titled
Subject: mm/page_alloc.c: fix comment in __get_free_pages()
has been added to the -mm tree. Its filename is
mm-page_alloc-fix-comment-is-__get_free_pages.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-page_alloc-fix-comment-is-__get_free_pages.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-page_alloc-fix-comment-is-__get_free_pages.patch
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------------------------------------------------------
From: Jiankang Chen <chenjiankang1@xxxxxxxxxx>
Subject: mm/page_alloc.c: fix comment in __get_free_pages()
__get_free_pages() will return a virtual address, but it is not just a
32-bit address, for example on a 64-bit system. And this comment really
confuses new readers of mm.
Link: http://lkml.kernel.org/r/1511780964-64864-1-git-send-email-chenjiankang1@xxxxxxxxxx
Signed-off-by: Jiankang Chen <chenjiankang1@xxxxxxxxxx>
Reported-by: Hanjun Guo <guohanjun@xxxxxxxxxx>
Cc: Mel Gorman <mgorman@xxxxxxxxxxxxxxxxxxx>
Cc: Johannes Weiner <hannes@xxxxxxxxxxx>
Cc: Yisheng Xie <xieyisheng1@xxxxxxxxxx>
Cc: Kefeng Wang <wangkefeng.wang@xxxxxxxxxx>
Cc: Michal Hocko <mhocko@xxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/page_alloc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN mm/page_alloc.c~mm-page_alloc-fix-comment-is-__get_free_pages mm/page_alloc.c
--- a/mm/page_alloc.c~mm-page_alloc-fix-comment-is-__get_free_pages
+++ a/mm/page_alloc.c
@@ -4267,7 +4267,7 @@ unsigned long __get_free_pages(gfp_t gfp
struct page *page;
/*
- * __get_free_pages() returns a 32-bit address, which cannot represent
+ * __get_free_pages() returns a virtual address, which cannot represent
* a highmem page
*/
VM_BUG_ON((gfp_mask & __GFP_HIGHMEM) != 0);
_
Patches currently in -mm which might be from chenjiankang1@xxxxxxxxxx are
mm-page_alloc-fix-comment-is-__get_free_pages.patch
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