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-rw-r--r--kernel/drivers/tty/tty_ioctl.c15
1 files changed, 7 insertions, 8 deletions
diff --git a/kernel/drivers/tty/tty_ioctl.c b/kernel/drivers/tty/tty_ioctl.c
index 8e53fe469..1445dd39a 100644
--- a/kernel/drivers/tty/tty_ioctl.c
+++ b/kernel/drivers/tty/tty_ioctl.c
@@ -26,6 +26,12 @@
#undef TTY_DEBUG_WAIT_UNTIL_SENT
+#ifdef TTY_DEBUG_WAIT_UNTIL_SENT
+# define tty_debug_wait_until_sent(tty, f, args...) tty_debug(tty, f, ##args)
+#else
+# define tty_debug_wait_until_sent(tty, f, args...) do {} while (0)
+#endif
+
#undef DEBUG
/*
@@ -210,11 +216,8 @@ int tty_unthrottle_safe(struct tty_struct *tty)
void tty_wait_until_sent(struct tty_struct *tty, long timeout)
{
-#ifdef TTY_DEBUG_WAIT_UNTIL_SENT
- char buf[64];
+ tty_debug_wait_until_sent(tty, "\n");
- printk(KERN_DEBUG "%s wait until sent...\n", tty_name(tty, buf));
-#endif
if (!timeout)
timeout = MAX_SCHEDULE_TIMEOUT;
@@ -1144,16 +1147,12 @@ int n_tty_ioctl_helper(struct tty_struct *tty, struct file *file,
spin_unlock_irq(&tty->flow_lock);
break;
case TCIOFF:
- down_read(&tty->termios_rwsem);
if (STOP_CHAR(tty) != __DISABLED_CHAR)
retval = tty_send_xchar(tty, STOP_CHAR(tty));
- up_read(&tty->termios_rwsem);
break;
case TCION:
- down_read(&tty->termios_rwsem);
if (START_CHAR(tty) != __DISABLED_CHAR)
retval = tty_send_xchar(tty, START_CHAR(tty));
- up_read(&tty->termios_rwsem);
break;
default:
return -EINVAL;
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#!/bin/bash
##############################################################################
# Copyright 2015: Mirantis Inc.
# All Rights Reserved.
#
#    Licensed under the Apache License, Version 2.0 (the "License"); you may
#    not use this file except in compliance with the License. You may obtain
#    a copy of the License at
#
#         http://www.apache.org/licenses/LICENSE-2.0
#
#    Unless required by applicable law or agreed to in writing, software
#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
#    License for the specific language governing permissions and limitations
#    under the License.
# yardstick comment: this is a modified copy of
# rally/tests/ci/cover.sh
##############################################################################

if [[ -n $COVER_DIR_NAME ]]; then
    :
elif [[ -n $_ ]]; then
    COVER_DIR_NAME=$( dirname $_ )
else
    COVER_DIR_NAME=$( dirname $0 )
fi

show_diff () {
    diff -U 0 $1 $2 | awk -f $COVER_DIR_NAME/cover.awk
}

run_coverage_test() {

    ALLOWED_EXTRA_MISSING=10
    # enable debugging
    set -x

    # Stash uncommitted changes, checkout master and save coverage report
    uncommited=$(git status --porcelain | grep -v "^??")
    [[ -n ${uncommited} ]] && git stash > /dev/null
    git checkout HEAD^

    baseline_report=$(mktemp -t yardstick_coverageXXXXXXX)
    ls -l .testrepository

    # workaround 'db type could not be determined' bug
    # https://bugs.launchpad.net/testrepository/+bug/1229445
    rm -rf .testrepository
    find . -type f -name "*.pyc" -delete

    #python setup.py testr --coverage --testr-args=""
    python setup.py testr --coverage --slowest --testr-args="$*"
    testr failing
    coverage report > ${baseline_report}

    # debug awk
    tail -1 ${baseline_report}
    baseline_missing=$(awk 'END { if (int($3) > 0) print $3 }' ${baseline_report})

    if [[ -z $baseline_missing ]]; then
        echo "Failed to determine baseline missing"
        exit 1
    fi

    # Checkout back and unstash uncommitted changes (if any)
    git checkout -
    [[ -n ${uncommited} ]] && git stash pop > /dev/null

    # Generate and save coverage report
    current_report=$(mktemp -t yardstick_coverageXXXXXXX)
    ls -l .testrepository

    # workaround 'db type could not be determined' bug
    # https://bugs.launchpad.net/testrepository/+bug/1229445
    rm -rf .testrepository
    find . -type f -name "*.pyc" -delete

    #python setup.py testr --coverage --testr-args=""
    python setup.py testr --coverage --slowest --testr-args="$*"
    testr failing
    coverage report > ${current_report}

    rm -rf cover-$PY_VER
    coverage html -d cover-$PY_VER

    # debug awk
    tail -1 ${current_report}
    current_missing=$(awk 'END { if (int($3) > 0) print $3 }' ${current_report})

    if [[ -z $current_missing ]]; then
        echo "Failed to determine current missing"
        exit 1
    fi

    # Show coverage details
    new_missing=$((current_missing - baseline_missing))

    echo "Missing lines allowed to introduce : ${ALLOWED_EXTRA_MISSING}"
    echo "Missing lines introduced           : ${new_missing}"
    echo "Missing lines in master            : ${baseline_missing}"
    echo "Missing lines in proposed change   : ${current_missing}"

    if [[ ${new_missing} -gt ${ALLOWED_EXTRA_MISSING} ]];
    then
        show_diff ${baseline_report} ${current_report}
        echo "Please write more unit tests, we should keep our test coverage :( "
        rm ${baseline_report} ${current_report}
        exit 1

    elif [[ ${new_missing} -gt 0 ]];
    then
        show_diff ${baseline_report} ${current_report}
        echo "I believe you can cover all your code with 100% coverage!"

    else
        echo "Thank you! You are awesome! Keep writing unit tests! :)"
    fi

    rm ${baseline_report} ${current_report}
}