xfs: dont use XFS_IS_QUOTA_RUNNING() for option check

When CONFIG_XFS_QUOTA is not defined any quota option is invalid.

Using the macro XFS_IS_QUOTA_RUNNING() as a check if any quota option
has been given is a little misleading so use a simple m_qflags != 0
check to make the intended use more explicit.

Also change to use the IS_ENABLED() macro for the kernel config check.
Signed-off-by: Ian Kent <raven@themaw.net>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>

fs/xfs/xfs_super.c

@@ -341,12 +341,10 @@ xfs_parseargs(
 		return -EINVAL;
 	}
 
-#ifndef CONFIG_XFS_QUOTA
-	if (XFS_IS_QUOTA_RUNNING(mp)) {
+	if (!IS_ENABLED(CONFIG_XFS_QUOTA) && mp->m_qflags != 0) {
 		xfs_warn(mp, "quota support not available in this kernel.");
 		return -EINVAL;
 	}
-#endif
 
 	if ((mp->m_dalign && !mp->m_swidth) ||
 	    (!mp->m_dalign && mp->m_swidth)) {