Merge branch into tip/master: 'core/entry'

Merge branch into tip/master: 'core/entry'

* core/entry:
    985faa78687d powerpc: Snapshot thread flags
    08b0af5b2aff powerpc: Avoid discarding flags in system_call_exception()
    4ea7ce0a79b9 openrisc: Snapshot thread flags
    e538c5849143 microblaze: Snapshot thread flags
    342b38087865 arm64: Snapshot thread flags
    050e22bfc4f4 ARM: Snapshot thread flags
    7fb2b24bb5c5 alpha: Snapshot thread flags
    0569b245132c sched: Snapshot thread flags
    6ce895128b3b entry: Snapshot thread flags
    dca99fb643a2 x86: Snapshot thread flags
    7ad639840acf thread_info: Add helpers to snapshot thread flags

Signed-off-by: Ingo Molnar <mingo@kernel.org>