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| author | Mike Rapoport <rppt@linux.vnet.ibm.com> | 2018-06-07 17:07:11 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-06-07 17:34:36 -0700 |
| commit | 88484826bc67844eeae1855ebe32cce9edd937c9 (patch) | |
| tree | 746b0a2a54108d048f472cce9166c68c79d6072a /mm | |
| parent | 48f49e1f66854ef44439b84a5cf47179539f3804 (diff) | |
| download | lwn-88484826bc67844eeae1855ebe32cce9edd937c9.tar.gz lwn-88484826bc67844eeae1855ebe32cce9edd937c9.zip | |
mm/ksm: move [set_]page_stable_node from ksm.h to ksm.c
page_stable_node() and set_page_stable_node() are only used in mm/ksm.c
and there is no point to keep them in the include/linux/ksm.h
[akpm@linux-foundation.org: fix SYSFS=n build]
Link: http://lkml.kernel.org/r/1524552106-7356-3-git-send-email-rppt@linux.vnet.ibm.com
Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/ksm.c | 11 |
1 files changed, 11 insertions, 0 deletions
@@ -840,6 +840,17 @@ static int unmerge_ksm_pages(struct vm_area_struct *vma, return err; } +static inline struct stable_node *page_stable_node(struct page *page) +{ + return PageKsm(page) ? page_rmapping(page) : NULL; +} + +static inline void set_page_stable_node(struct page *page, + struct stable_node *stable_node) +{ + page->mapping = (void *)((unsigned long)stable_node | PAGE_MAPPING_KSM); +} + #ifdef CONFIG_SYSFS /* * Only called through the sysfs control interface: |