From 051ac83adf69eea4f57a97356e4282e395a5fa6d Mon Sep 17 00:00:00 2001 From: Joonsoo Kim Date: Tue, 21 Jan 2014 15:49:48 -0800 Subject: mm/rmap: make rmap_walk to get the rmap_walk_control argument In each rmap traverse case, there is some difference so that we need function pointers and arguments to them in order to handle these For this purpose, struct rmap_walk_control is introduced in this patch, and will be extended in following patch. Introducing and extending are separate, because it clarify changes. Signed-off-by: Joonsoo Kim Reviewed-by: Naoya Horiguchi Cc: Mel Gorman Cc: Hugh Dickins Cc: Rik van Riel Cc: Ingo Molnar Cc: Hillf Danton Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/ksm.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'mm/ksm.c') diff --git a/mm/ksm.c b/mm/ksm.c index 175fff79dc95..c3035fee8080 100644 --- a/mm/ksm.c +++ b/mm/ksm.c @@ -1997,8 +1997,7 @@ out: } #ifdef CONFIG_MIGRATION -int rmap_walk_ksm(struct page *page, int (*rmap_one)(struct page *, - struct vm_area_struct *, unsigned long, void *), void *arg) +int rmap_walk_ksm(struct page *page, struct rmap_walk_control *rwc) { struct stable_node *stable_node; struct rmap_item *rmap_item; @@ -2033,7 +2032,8 @@ again: if ((rmap_item->mm == vma->vm_mm) == search_new_forks) continue; - ret = rmap_one(page, vma, rmap_item->address, arg); + ret = rwc->rmap_one(page, vma, + rmap_item->address, rwc->arg); if (ret != SWAP_AGAIN) { anon_vma_unlock_read(anon_vma); goto out; -- cgit v1.2.1