From 2300638b124645c26d082dbb57841878202ff6f7 Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Wed, 15 Nov 2017 17:37:26 -0800 Subject: [PATCH] mm: move clearing of page->mapping to page_cache_tree_delete() Clearing of page->mapping makes sense in page_cache_tree_delete() as well and it will help us with batching things this way. Link: http://lkml.kernel.org/r/20171010151937.26984-6-jack@suse.cz Signed-off-by: Jan Kara Acked-by: Mel Gorman Reviewed-by: Andi Kleen Cc: Dave Chinner Cc: Dave Hansen Cc: "Kirill A. Shutemov" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/filemap.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/mm/filemap.c b/mm/filemap.c index 014109e66e4a..c649624d386c 100644 --- a/mm/filemap.c +++ b/mm/filemap.c @@ -165,6 +165,9 @@ static void page_cache_tree_delete(struct address_space *mapping, workingset_update_node, mapping); } + page->mapping = NULL; + /* Leave page->index set: truncation lookup relies upon it */ + if (shadow) { mapping->nrexceptional += nr; /* @@ -250,9 +253,6 @@ void __delete_from_page_cache(struct page *page, void *shadow) inode_to_wb(mapping->host)); } page_cache_tree_delete(mapping, page, shadow); - - page->mapping = NULL; - /* Leave page->index set: truncation lookup relies upon it */ } static void page_cache_free_page(struct address_space *mapping,