erofs: directly use wrapper erofs_page_is_managed() when shrinking

We already have the wrapper function to identify managed page.

Link: https://lore.kernel.org/r/20210810065450.1320-1-zbestahu@gmail.com
Reviewed-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Yue Hu <huyue2@yulong.com>
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>

diff --git a/fs/erofs/zdata.c b/fs/erofs/zdata.c
index cb4d0889eca95b3fe99838562e13cc998d19fe87..fe724d6d68560d9266bfba0916f7ea314a2741d6 100644 (file)
--- a/fs/erofs/zdata.c
+++ b/fs/erofs/zdata.c
@@ -309,7 +309,6 @@ int erofs_try_to_free_all_cached_pages(struct erofs_sb_info *sbi,
 {
        struct z_erofs_pcluster *const pcl =
                container_of(grp, struct z_erofs_pcluster, obj);
-       struct address_space *const mapping = MNGD_MAPPING(sbi);
        int i;
 
        /*
@@ -326,7 +325,7 @@ int erofs_try_to_free_all_cached_pages(struct erofs_sb_info *sbi,
                if (!trylock_page(page))
                        return -EBUSY;
 
-               if (page->mapping != mapping)
+               if (!erofs_page_is_managed(sbi, page))
                        continue;
 
                /* barrier is implied in the following 'unlock_page' */