[LTP] [PATCH] statx04: mask STATX_ATTR_COMPRESSED on tmpfs

[xuyang2018.jy@fujitsu.com]

Hi Li

> Recently a new kernel commit (e408e695f) introduces the inode attributes
> being supported in tmpfs, which is like other Linux file systems. But that
> caused statx04 to throw an unsupported error in STATX_ATTR_COMPRESSED.
> 
> This patch help masks it just like what we did for XFS.

Looks good to me,
Reviewed-by: Yang Xu <xuyang2018.jy@fujitsu.com>

Best Regards
Yang Xu

>
>      tst_test.c:1599: TINFO: Testing on tmpfs
>      tst_test.c:1064: TINFO: Skipping mkfs for TMPFS filesystem
>      tst_test.c:1045: TINFO: Limiting tmpfs size to 32MB
>      statx04.c:114: TFAIL: STATX_ATTR_COMPRESSED not supported
>      statx04.c:112: TPASS: STATX_ATTR_APPEND is supported
>      statx04.c:112: TPASS: STATX_ATTR_IMMUTABLE is supported
>      statx04.c:112: TPASS: STATX_ATTR_NODUMP is supported
> 
> Signed-off-by: Li Wang <liwang@redhat.com>
> ---
>   testcases/kernel/syscalls/statx/statx04.c | 13 ++++++++++---
>   1 file changed, 10 insertions(+), 3 deletions(-)
> 
> diff --git a/testcases/kernel/syscalls/statx/statx04.c b/testcases/kernel/syscalls/statx/statx04.c
> index 083298310..03d909534 100644
> --- a/testcases/kernel/syscalls/statx/statx04.c
> +++ b/testcases/kernel/syscalls/statx/statx04.c
> @@ -17,7 +17,7 @@
>    * xfs filesystem doesn't support STATX_ATTR_COMPRESSED flag, so we only test
>    * three other flags.
>    *
> - * ext2, ext4, btrfs and xfs support statx syscall since the following commit
> + * ext2, ext4, btrfs, xfs and tmpfs support statx syscall since the following commit
>    *
>    *  commit 93bc420ed41df63a18ae794101f7cbf45226a6ef
>    *  Author: yangerkun <yangerkun@huawei.com>
> @@ -42,6 +42,13 @@
>    *  Date:   Fri Mar 31 18:32:03 2017 +0100
>    *
>    *  xfs: report crtime and attribute flags to statx
> + *
> + *  commit e408e695f5f1f60d784913afc45ff2c387a5aeb8
> + *  Author: Theodore Ts'o <tytso@mit.edu>
> + *  Date:   Thu Jul 14 21:59:12 2022 -0400
> + *
> + *  mm/shmem: support FS_IOC_[SG]ETFLAGS in tmpfs
> + *
>    */
>   
>   #define _GNU_SOURCE
> @@ -88,8 +95,8 @@ static void setup(void)
>   	for (i = 0, expected_mask = 0; i < ARRAY_SIZE(attr_list); i++)
>   		expected_mask |= attr_list[i].attr;
>   
> -	/* STATX_ATTR_COMPRESSED not supported on XFS */
> -	if (!strcmp(tst_device->fs_type, "xfs"))
> +	/* STATX_ATTR_COMPRESSED not supported on XFS, TMPFS */
> +	if (!strcmp(tst_device->fs_type, "xfs") || !strcmp(tst_device->fs_type, "tmpfs"))
>   		expected_mask &= ~STATX_ATTR_COMPRESSED;
>   
>   	/* Attribute support was added to Btrfs statx() in kernel v4.13 */