• Dmitry Safonov's avatar
    selftests/timens: Add Time Namespace test for supported clocks · 61c57676
    Dmitry Safonov authored
    A test to check that all supported clocks work on host and inside
    a new time namespace. Use both ways to get time: through VDSO and
    by entering the kernel with implicit syscall.
    
    Introduce a new timens directory in selftests framework for
    the next timens tests.
    
    Output on success:
     1..10
     ok 1 Passed for CLOCK_BOOTTIME (syscall)
     ok 2 Passed for CLOCK_BOOTTIME (vdso)
     ok 3 Passed for CLOCK_BOOTTIME_ALARM (syscall)
     ok 4 Passed for CLOCK_BOOTTIME_ALARM (vdso)
     ok 5 Passed for CLOCK_MONOTONIC (syscall)
     ok 6 Passed for CLOCK_MONOTONIC (vdso)
     ok 7 Passed for CLOCK_MONOTONIC_COARSE (syscall)
     ok 8 Passed for CLOCK_MONOTONIC_COARSE (vdso)
     ok 9 Passed for CLOCK_MONOTONIC_RAW (syscall)
     ok 10 Passed for CLOCK_MONOTONIC_RAW (vdso)
     # Pass 10 Fail 0 Xfail 0 Xpass 0 Skip 0 Error 0
    
    Output with lack of permissions:
     1..10
     not ok 1 # SKIP need to run as root
    
    Output without support of time namespaces:
     1..10
     not ok 1 # SKIP Time namespaces are not supported
    Co-developed-by: default avatarAndrei Vagin <avagin@openvz.org>
    Signed-off-by: default avatarAndrei Vagin <avagin@gmail.com>
    Signed-off-by: default avatarDmitry Safonov <dima@arista.com>
    Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
    Link: https://lore.kernel.org/r/20191112012724.250792-29-dima@arista.com
    
    61c57676
Makefile 7.08 KB