Re: [PATCH fstests v4 1/3] common/attr: fix the _require_acl test

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On Wed, Aug 30, 2023 at 06:58:50AM -0400, Jeff Layton wrote:
> _require_acl tests whether you're able to fetch the ACL from a file
> using chacl, and then tests for an -EOPNOTSUPP error return.
> Unfortunately, filesystems that don't support them (like NFSv4) just
> return -ENODATA when someone calls getxattr for the POSIX ACL, so the
> test doesn't work.
> 
> Fix the test to have chacl set an ACL on the file instead, which should
> reliably fail on filesystems that don't support them.
> 
> Signed-off-by: Jeff Layton <jlayton@xxxxxxxxxx>

Seems logical,
Reviewed-by: Darrick J. Wong <djwong@xxxxxxxxxx>

--D

> ---
>  common/attr | 9 ++++-----
>  1 file changed, 4 insertions(+), 5 deletions(-)
> 
> diff --git a/common/attr b/common/attr
> index cce4d1b201b2..3ebba682c894 100644
> --- a/common/attr
> +++ b/common/attr
> @@ -163,13 +163,12 @@ _require_acls()
>      [ -n "$CHACL_PROG" ] || _notrun "chacl command not found"
>  
>      #
> -    # Test if chacl is able to list ACLs on the target filesystems.  On really
> -    # old kernels the system calls might not be implemented at all, but the
> -    # more common case is that the tested filesystem simply doesn't support
> -    # ACLs.
> +    # Test if chacl is able to set an ACL on a file.  On really old kernels
> +    # the system calls might not be implemented at all, but the more common
> +    # case is that the tested filesystem simply doesn't support ACLs.
>      #
>      touch $TEST_DIR/syscalltest
> -    chacl -l $TEST_DIR/syscalltest > $TEST_DIR/syscalltest.out 2>&1
> +    chacl 'u::rw-,g::---,o::---' $TEST_DIR/syscalltest > $TEST_DIR/syscalltest.out 2>&1
>      cat $TEST_DIR/syscalltest.out >> $seqres.full
>  
>      if grep -q 'Function not implemented' $TEST_DIR/syscalltest.out; then
> 
> -- 
> 2.41.0
> 



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