local client="$1"
local path="$2"
local expected_data="$3"
+ local pid=$4
- path_data=$(do_facet $client cat $path)
- [[ "x$path_data" == "x$expected_data" ]] || error \
- "expected $path: $expected_data, got: $path_data"
+ # if $pid is set, then run command within namespace for that process
+ path_data=$(do_facet $client ${pid:+nsenter -t $pid -U -m} cat $path)
+ [[ "x$path_data" == "x$expected_data" ]] ||
+ error "expected $path: $expected_data, got: $path_data"
}
check_lpcc_data()
is_project_quota_supported || project=false
- do_facet $SINGLEAGT mkdir -p $DIR/$tdir
+ do_facet $SINGLEAGT $LFS mkdir -i0 -c1 $DIR/$tdir
setup_pcc_mapping
$project && lfs project -sp $project_id $DIR/$tdir
setup_pcc_mapping $SINGLEAGT \
"projid={100}\ rwid=$HSM_ARCHIVE_NUMBER\ auto_attach=0"
$LCTL pcc list $MOUNT
- mkdir $DIR/$tdir || error "mkdir $DIR/$tdir failed"
+ mkdir_on_mdt0 $DIR/$tdir || error "mkdir $DIR/$tdir failed"
chmod 777 $DIR/$tdir || error "chmod 777 $DIR/$tdir failed"
do_facet $SINGLEAGT $RUNAS dd if=/dev/zero of=$file bs=1024 count=1 ||
setup_pcc_mapping $SINGLEAGT \
"projid={100}\ rwid=$HSM_ARCHIVE_NUMBER\ open_attach=0\ stat_attach=0"
- do_facet $SINGLEAGT mkdir -p $DIR/$tdir
+ do_facet $SINGLEAGT $LFS mkdir -i0 -c1 $DIR/$tdir
chmod 777 $DIR/$tdir || error "chmod 0777 $DIR/$tdir failed"
$LFS project -sp $project_id $DIR/$tdir ||
error "failed to set project for $DIR/$tdir"
copytool setup -m "$MOUNT" -a "$HSM_ARCHIVE_NUMBER"
setup_pcc_mapping
file=$DIR/$tdir/multiop
- mkdir -p $DIR/$tdir
+ $LFS mkdir -i -1 -c $MDSCOUNT $DIR/$tdir
rm -f $file
do_facet $SINGLEAGT $LFS project -sp $project_id $DIR/$tdir ||
sleep 3
wait_request_state $(path2fid $file) RESTORE SUCCEED
$LFS hsm_remove $file || error "hsm remove $file failed"
- wait $pid && error "RW-PCC attach $file should fail"
+ wait $pid
do_facet $SINGLEAGT "[ -f $lpcc_path ]" &&
error "RW-PCC cached file '$lpcc_path' should be removed"
"$rule\ rwid=$HSM_ARCHIVE_NUMBER\ auto_attach=0"
$LCTL pcc list $MOUNT
- do_facet $SINGLEAGT mkdir -p $DIR/$tdir
+ do_facet $SINGLEAGT $LFS mkdir -i 0 $DIR/$tdir
chmod 777 $DIR/$tdir || error "chmod 0777 $DIR/$tdir failed"
rm -f $file || error "rm $file failed"
copytool setup -m "$MOUNT" -a "$HSM_ARCHIVE_NUMBER"
setup_pcc_mapping
- mkdir $DIR/$tdir || error "mkdir $DIR/$tdir failed"
+ mkdir_on_mdt0 $DIR/$tdir || error "mkdir $DIR/$tdir failed"
chmod 777 $DIR/$tdir || error "chmod 777 $DIR/$tdir failed"
echo "Check open attach for non-root user"
}
run_test 20 "Auto attach works after the inode was once evicted from cache"
+#test 101: containers and PCC
+#LU-15170: Test mount namespaces with PCC
+#This tests the cases where the PCC mount is not present in the container by
+#creating a mount namespace without the PCC mount in it (this is probably the
+#standard config for most containers)
+test_101a() {
+ local loopfile="$TMP/$tfile"
+ local mntpt="/mnt/pcc.$tdir"
+ local hsm_root="$mntpt/$tdir"
+ local file=$DIR/$tdir/$tfile
+
+ # Some kernels such as RHEL7 default to 0 user namespaces
+ local maxuserns=$(do_facet $SINGLEAGT cat /proc/sys/user/max_user_namespaces)
+ do_facet $SINGLEAGT "echo 10 > /proc/sys/user/max_user_namespaces"
+ stack_trap "do_facet $SINGLEAGT 'echo $maxuserns > /proc/sys/user/max_user_namespaces'"
+
+ echo "creating user namespace for $RUNAS_ID"
+ # Create a mount and user namespace with this command, and leave the
+ # process running so we can do the rest of our steps
+ do_facet $SINGLEAGT $RUNAS unshare -Um sleep 600 &
+ # Let the child start...
+ sleep 0.2
+ # Get the sleep PID so we can find its namespace and kill it later
+ PID=$(do_facet $SINGLEAGT pgrep sleep)
+ stack_trap "do_facet $SINGLEAGT kill -9 $PID" EXIT
+ echo "Created NS: child (sleep) pid $PID"
+ # Map 'RUNAS' to root in the namespace, so it has rights to do whatever
+ # This is handled by '-r' in unshare in newer versions
+ do_facet $SINGLEAGT $RUNAS newuidmap $PID 0 $RUNAS_ID 1 ||
+ error "could not map uid $RUNAS_ID to root in namespace"
+ do_facet $SINGLEAGT $RUNAS newgidmap $PID 0 $RUNAS_GID 1 ||
+ error "could not map gid $RUNAS_GID to root in namespace"
+
+ # Create PCC after creating namespace; namespace will not have PCC
+ # mount
+ setup_loopdev $SINGLEAGT $loopfile $mntpt 50
+
+ # Create a temp file inside the PCC mount to verify mount namespace
+ do_facet $SINGLEAGT touch $mntpt/$tfile.tmp
+ stack_trap "do_facet $SINGLEAGT rm -f $mntpt/$tfile.tmp" EXIT
+ echo "Check for temp file in PCC mount"
+ do_facet $SINGLEAGT test -f $mntpt/$tfile.tmp ||
+ error "Should see $mntpt/$tfile.tmp"
+ echo "Check for temp file in PCC mount from inside namespace"
+ do_facet $SINGLEAGT nsenter -t $PID -U -m test -f $mntpt/$tfile.tmp &&
+ error "Should not see $mntpt/$tfile.tmp from namespace"
+ rm -f $mntpt/$tfile.tmp
+
+ # Finish PCC setup
+ copytool setup -m "$MOUNT" -a "$HSM_ARCHIVE_NUMBER"
+ setup_pcc_mapping $SINGLEAGT "projid={100}\ rwid=$HSM_ARCHIVE_NUMBER"
+
+ mkdir_on_mdt0 $DIR/$tdir || error "mkdir $DIR/$tdir failed"
+ chmod 777 $DIR/$tdir || error "chmod 777 $DIR/$tdir failed"
+
+ echo "Verify open attach from inside mount namespace"
+ do_facet $SINGLEAGT nsenter -t $PID -U -m dd if=/dev/zero of=$file bs=1024 count=1 ||
+ error "failed to dd write to $file"
+ do_facet $SINGLEAGT nsenter -t $PID -U -m $LFS pcc attach \
+ -i $HSM_ARCHIVE_NUMBER $file || error "cannot attach $file"
+ do_facet $SINGLEAGT nsenter -t $PID -U -m $LFS pcc state $file
+
+ check_lpcc_state $file "readwrite" $SINGLEAGT "$RUNAS"
+ # Revoke the layout lock, the PCC-cached file will be
+ # detached automatically.
+ do_facet $SINGLEAGT $LCTL set_param ldlm.namespaces.*mdc*.lru_size=clear
+ check_lpcc_state $file "readwrite" $SINGLEAGT "$RUNAS"
+ # Detach the file but keep the cache, as the file layout generation
+ # is not changed, so the file is still valid cached in PCC, and can
+ # be reused from PCC cache directly.
+ do_facet $SINGLEAGT nsenter -t $PID -U -m $LFS pcc detach -k $file ||
+ error "PCC detach $file failed"
+ check_lpcc_state $file "readwrite" $SINGLEAGT "$RUNAS"
+ do_facet $SINGLEAGT nsenter -t $PID -U -m $LFS pcc detach $file ||
+ error "PCC detach $file failed"
+ do_facet $SINGLEAGT nsenter -t $PID -U -m dd if=/dev/zero of=$file bs=1024 count=1 ||
+ error "failed to dd write to $file"
+ rm -f $file || error "rm $file failed"
+
+ echo "Verify auto attach at open from inside NS for RW-PCC"
+ # nsenter has strange behavior with echo, which means we have to place
+ # this in a script so we can use sh, otherwise it doesn't execute echo
+ # in the namespace
+ # NB: using /bin/echo instead of the shell built in does not help
+ echo "echo -n autoattach_data > $file" > $DIR/$tdir/$tfile.shell
+ # File is owned by root, make it accessible to RUNAS user
+ chmod a+rw $DIR/$tdir/$tfile.shell
+ stack_trap 'rm -f $DIR/$tdir/$tfile.shell' EXIT
+ do_facet $SINGLEAGT nsenter -t $PID -U -m "sh $DIR/$tdir/$tfile.shell"
+ do_facet $SINGLEAGT nsenter -t $PID -U -m $LFS pcc attach -i $HSM_ARCHIVE_NUMBER \
+ $file || error "RW-PCC attach $file failed"
+ check_lpcc_state $file "readwrite"
+
+ # Revoke the layout lock, the PCC-cached file will be
+ # detached automatically.
+ do_facet $SINGLEAGT $LCTL set_param ldlm.namespaces.*mdc*.lru_size=clear
+ check_file_data $SINGLEAGT $file "autoattach_data" $PID
+ check_lpcc_state $file "readwrite"
+
+ # Detach the file with -k option, as the file layout generation
+ # is not changed, so the file is still valid cached in PCC,
+ # and can be reused from PCC cache directly.
+ do_facet $SINGLEAGT $LFS pcc detach -k $file ||
+ error "RW-PCC detach $file failed"
+ check_lpcc_state $file "readwrite"
+ # HSM released exists archived status
+ check_hsm_flags $file "0x0000000d"
+ check_file_data $SINGLEAGT $file "autoattach_data" $PID
+
+ # HSM restore the PCC cached file, the layout generation
+ # was changed, so the file can not be auto attached.
+ $LFS hsm_restore $file || error "failed to restore $file"
+ wait_request_state $(path2fid $file) RESTORE SUCCEED
+ check_lpcc_state $file "none"
+ # HSM exists archived status
+ check_hsm_flags $file "0x00000009"
+}
+run_test 101a "Test auto attach in mount namespace (simulated container)"
+
complete $SECONDS
check_and_cleanup_lustre
exit_status
git://git.whamcloud.com / fs / lustre-release.git / blobdiff