[LTP] [PATCH] syscalls/fgetxattr02: Use loop instead of RAM disk

[Yang Xu]

Hi Cyril> There are minimal systems that does not ship with RAM disk 
kernel module
> which makes this test fail with ENXIO when we attempt to open the block
> device in the test setup.
> 
> LTP depends on heavily on loop device driver already so it makes sense
> to switch over to a loop device backed block device instead.
> 
> Signed-off-by: Cyril Hrubis <chrubis@suse.cz>
> ---
>   testcases/kernel/syscalls/fgetxattr/fgetxattr02.c | 7 ++++---
>   1 file changed, 4 insertions(+), 3 deletions(-)
> 
> diff --git a/testcases/kernel/syscalls/fgetxattr/fgetxattr02.c b/testcases/kernel/syscalls/fgetxattr/fgetxattr02.c
> index 02e81810a..82fb676be 100644
> --- a/testcases/kernel/syscalls/fgetxattr/fgetxattr02.c
> +++ b/testcases/kernel/syscalls/fgetxattr/fgetxattr02.c
> @@ -210,7 +210,8 @@ static void setup(void)
>   	size_t i = 0;
>   	struct sockaddr_un sun;
>   
> -	dev_t dev = makedev(1, 3);
> +	dev_t chr_dev = makedev(1, 3);
> +	dev_t blk_dev = makedev(7, 3);
  Can we use tst_find_free_loopdev to avoid a fixed loop dev like 
copy_file_range02.c?

Best Regards
Yang Xu
>   
>   	SAFE_TOUCH(FILENAME, 0644, NULL);
>   	SAFE_TOUCH(SYMLINKF, 0644, NULL);
> @@ -219,8 +220,8 @@ static void setup(void)
>   
>   	/* root: mknod(2) needs it to create something other than a file */
>   	SAFE_MKNOD(FIFO, S_IFIFO | 0777, 0);
> -	SAFE_MKNOD(CHR, S_IFCHR | 0777, dev);
> -	SAFE_MKNOD(BLK, S_IFBLK | 0777, dev);
> +	SAFE_MKNOD(CHR, S_IFCHR | 0777, chr_dev);
> +	SAFE_MKNOD(BLK, S_IFBLK | 0777, blk_dev);
>   
>   	for (i = 0; i < ARRAY_SIZE(tc); i++) {
>   
>