From 50e7fbc3bf0c3e41af0075f17a9e4ddefa82e1b5 Mon Sep 17 00:00:00 2001 From: Matthew Wilcox Date: Thu, 7 Jun 2018 17:09:01 -0700 Subject: mm: add hmm_data to struct page MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Make hmm_data an explicit member of the struct page union. Link: http://lkml.kernel.org/r/20180518194519.3820-14-willy@infradead.org Signed-off-by: Matthew Wilcox Acked-by: Vlastimil Babka Cc: Christoph Lameter Cc: Dave Hansen Cc: Jérôme Glisse Cc: "Kirill A . Shutemov" Cc: Lai Jiangshan Cc: Martin Schwidefsky Cc: Pekka Enberg Cc: Randy Dunlap Cc: Andrey Ryabinin Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/hmm.h | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) (limited to 'include/linux/hmm.h') diff --git a/include/linux/hmm.h b/include/linux/hmm.h index 2f1327c37a63..4c92e3ba3e16 100644 --- a/include/linux/hmm.h +++ b/include/linux/hmm.h @@ -522,9 +522,7 @@ void hmm_devmem_remove(struct hmm_devmem *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_drvdata(struct page *page, */ 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; } -- cgit v1.2.3