staging: erofs: drop __GFP_NOFAIL for managed inode

For historical reasons, __GFP_NOFAIL was set for managed inode.
It's no need using that since EROFS can handle it properly.
Signed-off-by: Gao Xiang <gaoxiang25@huawei.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Link: https://lore.kernel.org/r/20190731155752.210602-13-gaoxiang25@huawei.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/erofs/super.c

@@ -356,8 +356,7 @@ static int erofs_init_managed_cache(struct super_block *sb)
 
 	inode->i_mapping->a_ops = &managed_cache_aops;
 	mapping_set_gfp_mask(inode->i_mapping,
-			     GFP_NOFS | __GFP_HIGHMEM |
-			     __GFP_MOVABLE |  __GFP_NOFAIL);
+			     GFP_NOFS | __GFP_HIGHMEM | __GFP_MOVABLE);
 	sbi->managed_cache = inode;
 	return 0;
 }