linux-kernel - [PATCH RESEND v4 0/4] x86: fix get_nr_restart

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Date:   Mon, 1 Feb 2021 18:45:55 +0100
From:   Oleg Nesterov <oleg@...hat.com>
To:     Andrew Morton <akpm@...ux-foundation.org>,
        Thomas Gleixner <tglx@...utronix.de>
Cc:     Andy Lutomirski <luto@...nel.org>, Ingo Molnar <mingo@...nel.org>,
        Jan Kratochvil <jan.kratochvil@...hat.com>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Pedro Alves <palves@...hat.com>, Peter Anvin <hpa@...or.com>,
        linux-kernel@...r.kernel.org, x86@...nel.org
Subject: [PATCH RESEND v4 0/4] x86: fix get_nr_restart_syscall()

Somehow I forgot about this problem. Let me resend the last version
based on discussion with Linus. IIRC he was agree with this series.

And let me remind why 3/4 temporary adds the "transient" TS_COMPAT_RESTART
flag killed by the next patch: to simplify the backporting. 1-3 can fix
the problem without breaking the kABI.

Oleg.
---
 arch/x86/include/asm/processor.h   |  9 ---------
 arch/x86/include/asm/thread_info.h | 15 ++++++++++++++-
 arch/x86/kernel/signal.c           | 24 +-----------------------
 fs/select.c                        | 10 ++++------
 include/linux/restart_block.h      |  1 +
 include/linux/thread_info.h        | 13 +++++++++++++
 kernel/futex.c                     |  3 +--
 kernel/time/alarmtimer.c           |  2 +-
 kernel/time/hrtimer.c              |  2 +-
 kernel/time/posix-cpu-timers.c     |  2 +-
 10 files changed, 37 insertions(+), 44 deletions(-)