mm: remove gup_flags FOLL_WRITE games from __get_user_pages()

[cascardo/linux.git] / mm / page-writeback.c

diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index 5ed3381..439cc63 100644 (file)
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -2716,7 +2716,7 @@ int test_clear_page_writeback(struct page *page)
        int ret;
 
        lock_page_memcg(page);
-       if (mapping) {
+       if (mapping && mapping_use_writeback_tags(mapping)) {
                struct inode *inode = mapping->host;
                struct backing_dev_info *bdi = inode_to_bdi(inode);
                unsigned long flags;
@@ -2759,7 +2759,7 @@ int __test_set_page_writeback(struct page *page, bool keep_write)
        int ret;
 
        lock_page_memcg(page);
-       if (mapping) {
+       if (mapping && mapping_use_writeback_tags(mapping)) {
                struct inode *inode = mapping->host;
                struct backing_dev_info *bdi = inode_to_bdi(inode);
                unsigned long flags;