generic/077: ignore errors occurred while accessing the filler files

When looking for data to fill in the filesystem, errors accessing files
may occur.  This will cause the test to fail as it'll show in the output
lines such as:

    du: cannot read directory '/usr/etc/sudoers.d': Permission denied

Ignoring these errors should be safe, so simply redirecting the stderr of
'du' to $seqres.full fixes it.  Unfortunately, this exposed a different
issue, which was the truncation of the $seqres.full file while copying files
into the filesystem.  This patch also fixes that.

Signed-off-by: "Luis Henriques (SUSE)" <luis.henriques@linux.dev>
Reviewed-by: Zorro Lang <zlang@redhat.com>
Signed-off-by: Zorro Lang <zlang@kernel.org>

diff --git a/tests/generic/077 b/tests/generic/077
index 2624e88f1456b3b34c6aa88e506db0136f8f3571..4d66f1055403e81760e321a404d7e01df8016e0a 100755 (executable)
--- a/tests/generic/077
+++ b/tests/generic/077
@@ -12,13 +12,13 @@ _begin_fstest acl attr auto enospc
 # Something w/ enough data to fill 256M of fs...
 filler=""
 [ -d /lib/modules ] && \
-       [ $(( $(du -h -m /lib/modules | tail -1| cut -f1) * 2 )) -ge 256 ] && \
+       [ $(( $(du -h -m /lib/modules 2>> $seqres.full | tail -1| cut -f1) * 2 )) -ge 256 ] && \
        filler=/lib/modules
 
 # fall back in case /lib/modules doesn't exist or smaller
 [[ -z $filler ]] && \
        [ -d /usr ] && \
-       [ $(( $(du -h -m /usr | tail -1| cut -f1) * 2 )) -ge 256 ] && \
+       [ $(( $(du -h -m /usr 2>> $seqres.full | tail -1| cut -f1) * 2 )) -ge 256 ] && \
        filler=/usr
 
 # Override the default cleanup function.
@@ -58,10 +58,10 @@ echo "*** set default ACL"
 setfacl -R -dm u:fsgqa:rwx,g::rwx,o::r-x,m::rwx $SCRATCH_MNT/subdir
 
 echo "*** populate filesystem, pass #1" | tee -a $seqres.full
-cp -rf $filler $SCRATCH_MNT/subdir >$seqres.full 2>&1
+cp -rf $filler $SCRATCH_MNT/subdir >>$seqres.full 2>&1
 
 echo "*** populate filesystem, pass #2" | tee -a $seqres.full
-cp -rf $filler $SCRATCH_MNT/subdir >$seqres.full 2>&1
+cp -rf $filler $SCRATCH_MNT/subdir >>$seqres.full 2>&1
 
 _check_scratch_fs