The patch titled
Subject: mm: add hmm_data to struct page
has been removed from the -mm tree. Its filename was
mm-add-hmm_data-to-struct-page.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
From: Matthew Wilcox <mawilcox@xxxxxxxxxxxxx>
Subject: mm: add hmm_data to struct page
Make hmm_data an explicit member of the struct page union.
Link: http://lkml.kernel.org/r/20180518194519.3820-14-willy@xxxxxxxxxxxxx
Signed-off-by: Matthew Wilcox <mawilcox@xxxxxxxxxxxxx>
Acked-by: Vlastimil Babka <vbabka@xxxxxxx>
Cc: Christoph Lameter <cl@xxxxxxxxx>
Cc: Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>
Cc: Jérôme Glisse <jglisse@xxxxxxxxxx>
Cc: "Kirill A . Shutemov" <kirill.shutemov@xxxxxxxxxxxxxxx>
Cc: Lai Jiangshan <jiangshanlai@xxxxxxxxx>
Cc: Martin Schwidefsky <schwidefsky@xxxxxxxxxx>
Cc: Pekka Enberg <penberg@xxxxxxxxxx>
Cc: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
Cc: Andrey Ryabinin <aryabinin@xxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/hmm.h | 8 ++------
include/linux/mm_types.h | 12 ++++++------
2 files changed, 8 insertions(+), 12 deletions(-)
diff -puN include/linux/hmm.h~mm-add-hmm_data-to-struct-page include/linux/hmm.h
--- a/include/linux/hmm.h~mm-add-hmm_data-to-struct-page
+++ a/include/linux/hmm.h
@@ -522,9 +522,7 @@ void hmm_devmem_remove(struct hmm_devmem
static inline void hmm_devmem_page_set_drvdata(struct page *page,
unsigned long data)
{
- unsigned long *drvdata = (unsigned long *)&page->pgmap;
-
- drvdata[1] = data;
+ page->hmm_data = data;
}
/*
@@ -535,9 +533,7 @@ static inline void hmm_devmem_page_set_d
*/
static inline unsigned long hmm_devmem_page_get_drvdata(const struct page *page)
{
- const unsigned long *drvdata = (const unsigned long *)&page->pgmap;
-
- return drvdata[1];
+ return page->hmm_data;
}
diff -puN include/linux/mm_types.h~mm-add-hmm_data-to-struct-page include/linux/mm_types.h
--- a/include/linux/mm_types.h~mm-add-hmm_data-to-struct-page
+++ a/include/linux/mm_types.h
@@ -146,15 +146,15 @@ struct page {
spinlock_t ptl;
#endif
};
+ struct { /* ZONE_DEVICE pages */
+ /** @pgmap: Points to the hosting device page map. */
+ struct dev_pagemap *pgmap;
+ unsigned long hmm_data;
+ unsigned long _zd_pad_1; /* uses mapping */
+ };
/** @rcu_head: You can use this to free a page by RCU. */
struct rcu_head rcu_head;
-
- /**
- * @pgmap: For ZONE_DEVICE pages, this points to the hosting
- * device page map.
- */
- struct dev_pagemap *pgmap;
};
union { /* This union is 4 bytes in size. */
_
Patches currently in -mm which might be from mawilcox@xxxxxxxxxxxxx are
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