f2fs: don't change inode status under page lock

In order to shrink page lock coverage.
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

fs/f2fs/dir.c

@@ -850,12 +850,6 @@ void f2fs_delete_entry(struct f2fs_dir_entry *dentry, struct page *page,
 			0);
 	set_page_dirty(page);
 
-	dir->i_ctime = dir->i_mtime = current_time(dir);
-	f2fs_mark_inode_dirty_sync(dir, false);
-
-	if (inode)
-		f2fs_drop_nlink(dir, inode);
-
 	if (bit_pos == NR_DENTRY_IN_BLOCK &&
 		!f2fs_truncate_hole(dir, page->index, page->index + 1)) {
 		f2fs_clear_page_cache_dirty_tag(page);
@@ -867,6 +861,12 @@ void f2fs_delete_entry(struct f2fs_dir_entry *dentry, struct page *page,
 		f2fs_remove_dirty_inode(dir);
 	}
 	f2fs_put_page(page, 1);
+
+	dir->i_ctime = dir->i_mtime = current_time(dir);
+	f2fs_mark_inode_dirty_sync(dir, false);
+
+	if (inode)
+		f2fs_drop_nlink(dir, inode);
 }
 
 bool f2fs_empty_dir(struct inode *dir)