runltp: Do not export empty LTP_BIG_DEV and LTP_BIG_DEV_FS_TYPE
Make runltp export LTP_BIG_DEV and LTP_BIG_DEV_FS_TYPE only when they
have a non-zero value. We do this to make getenv("LTP_BIG_DEV") or
getenv("LTP_BIG_DEV_FS_TYPE") return NULL, if user does not specify a
big block device. Because users usually write such code:
device = getenv("LTP_BIG_DEV");
if (device == NULL) {
tst_brkm(TCONF, NULL,
"you must specify a big blockdevice(>1.2G)");
} else {
tst_mkfs(NULL, device, "ext3", NULL);
}
Signed-off-by: Xiaoguang Wang <wangxg.fnst@cn.fujitsu.com>
1 file changed