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authorMike Rapoport <rppt@linux.vnet.ibm.com>2018-06-08 03:07:11 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2018-06-08 03:34:36 +0300
commit88484826bc67844eeae1855ebe32cce9edd937c9 (patch)
tree746b0a2a54108d048f472cce9166c68c79d6072a /mm
parent48f49e1f66854ef44439b84a5cf47179539f3804 (diff)
downloadlinux-88484826bc67844eeae1855ebe32cce9edd937c9.tar.xz
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.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/mm/ksm.c b/mm/ksm.c
index 7d6558f3bac9..e2d2886fb1df 100644
--- a/mm/ksm.c
+++ b/mm/ksm.c
@@ -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: