The patch titled
Subject: mm: introduce offset_in_thp
has been added to the -mm tree. Its filename is
mm-introduce-offset_in_thp.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-introduce-offset_in_thp.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-introduce-offset_in_thp.patch
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*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next and is updated
there every 3-4 working days
------------------------------------------------------
From: "Matthew Wilcox (Oracle)" <willy@xxxxxxxxxxxxx>
Subject: mm: introduce offset_in_thp
Mirroring offset_in_page(), this gives you the offset within this
particular page, no matter what size page it is. It optimises down to
offset_in_page() if CONFIG_TRANSPARENT_HUGEPAGE is not set.
Link: http://lkml.kernel.org/r/20200629151959.15779-8-willy@xxxxxxxxxxxxx
Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
Reviewed-by: David Hildenbrand <david@xxxxxxxxxx>
Reviewed-by: William Kucharski <william.kucharski@xxxxxxxxxx>
Reviewed-by: Zi Yan <ziy@xxxxxxxxxx>
Cc: Mike Kravetz <mike.kravetz@xxxxxxxxxx>
Cc: "Kirill A. Shutemov" <kirill.shutemov@xxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/mm.h | 1 +
1 file changed, 1 insertion(+)
--- a/include/linux/mm.h~mm-introduce-offset_in_thp
+++ a/include/linux/mm.h
@@ -1585,6 +1585,7 @@ static inline void clear_page_pfmemalloc
extern void pagefault_out_of_memory(void);
#define offset_in_page(p) ((unsigned long)(p) & ~PAGE_MASK)
+#define offset_in_thp(page, p) ((unsigned long)(p) & (thp_size(page) - 1))
/*
* Flags passed to show_mem() and show_free_areas() to suppress output in
_
Patches currently in -mm which might be from willy@xxxxxxxxxxxxx are
vmalloc-convert-to-xarray.patch
mm-store-compound_nr-as-well-as-compound_order.patch
mm-move-page-flags-include-to-top-of-file.patch
mm-add-thp_order.patch
mm-add-thp_size.patch
mm-replace-hpage_nr_pages-with-thp_nr_pages.patch
mm-add-thp_head.patch
mm-introduce-offset_in_thp.patch
