[LTP] [PATCH v3, 1/2] lib/tst_test.sh: Make tst_umount work with argument that has trailing slash

[Petr Vorel <pvorel@suse.cz>]

Hi all,

> > Hi Leo

> > > /proc/mounts shows the mount point without trailing slashes, e.g.
> > > ~ $ cat /proc/mounts
> > > xxx /root/cgroup cgroup rw,relatime,cpu 0 0

> > > So current tst_umount would not work with argument that has trailing slash, e.g.
> > > tst_umount cgroup/ would give "The device is not mounted".

> > > Fix this by filtering out the trailing slash before grepping /proc/mounts.

> > > Signed-off-by: Leo Yu-Chi Liang<ycliang@andestech.com>
> > > ---
> > >   testcases/lib/tst_test.sh | 3 ++-
> > >   1 file changed, 2 insertions(+), 1 deletion(-)

> > > diff --git a/testcases/lib/tst_test.sh b/testcases/lib/tst_test.sh
> > > index c6aa2c487..f132512e7 100644
> > > --- a/testcases/lib/tst_test.sh
> > > +++ b/testcases/lib/tst_test.sh
> > > @@ -282,13 +282,14 @@ tst_umount()

> > >   	[ -z "$device" ]&&  return

> > > +	device=${device%/}
> > >   	if ! grep -q "$device" /proc/mounts; then
> > >   		tst_res TINFO "The $device is not mounted, skipping umount"
> > >   		return
> > >   	fi

> > >   	while [ "$i" -lt 50 ]; do
> > > -		if umount "$device">  /dev/null; then
> > > +		if umount "$device"/>  /dev/null; then
> > With removing this(we don't need add "/" here), this patch looks good to me
> +1
Actually we need to keep / for next patch, right? (cgroup/)

Thus why not just changing argument for grep?
-       if ! grep -q "$device" /proc/mounts; then
+       if ! grep -q "${device%/}" /proc/mounts; then

Kind regards,
Petr

> Reviewed-by: Petr Vorel <pvorel@suse.cz>

> Kind regards,
> Petr

> > Reviewed-by: Yang Xu <xuyang2018.jy@fujitsu.com>
> > >   			return
> > >   		fi