linux-kernel - [PATCH 0/3 v2] x86: Remove old nmi

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <1290540725-2911-1-git-send-email-dzickus@redhat.com>
Date:	Tue, 23 Nov 2010 14:32:02 -0500
From:	Don Zickus <dzickus@...hat.com>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	fweisbec@...il.com, gorcunov@...nvz.org,
	LKML <linux-kernel@...r.kernel.org>, yinghai@...nel.org,
	Don Zickus <dzickus@...hat.com>
Subject: [PATCH 0/3 v2] x86: Remove old nmi_watchdog

Ingo asked me to remove the old nmi_watchdog to minimize the amount of
code duplication we have to do for recent fixes.  All the functionality
needed by the old nmi watchdog should be available in perf now.

This is done in two parts.  The first part is simply remove the old code
and leave stubs for the functions that were removed.  This mimics the
behaviour of the new nmi watchdog.

The second parts removes all the stub functions, which is probably a
little more intrusive, but basically dead code anyway.

The only small piece left is the perf counter reservation code.  That can't
be removed until oprofile is modified to sit on top of perf (if that is
possible).

Compile tested for 32/64 bit with the lockup detector turned on and off.
Tested on 32/64 bit machines to make sure they still boot properly.

NOTE:  This patch will clash with my nmi rewrite patch series.  I don't
which patch series will go in first.  I can refresh either one once one
of them is merged.

Don Zickus (3):
  x86, NMI: Remove do_nmi_callback logic
  x86, nmi_watchdog:  remove the old nmi_watchdog
  x86, nmi_watchdog: remove all stub function calls from old
    nmi_watchdog

 Documentation/kernel-parameters.txt    |   10 +-
 arch/x86/include/asm/nmi.h             |   51 ---
 arch/x86/include/asm/smpboot_hooks.h   |    1 -
 arch/x86/include/asm/timer.h           |    6 -
 arch/x86/kernel/apic/Makefile          |    5 +-
 arch/x86/kernel/apic/apic.c            |   15 +-
 arch/x86/kernel/apic/hw_nmi.c          |   27 +-
 arch/x86/kernel/apic/io_apic.c         |   46 ---
 arch/x86/kernel/apic/nmi.c             |  567 ----------------------------
 arch/x86/kernel/cpu/perf_event.c       |    9 -
 arch/x86/kernel/cpu/perfctr-watchdog.c |  642 --------------------------------
 arch/x86/kernel/smpboot.c              |   11 -
 arch/x86/kernel/time.c                 |   18 -
 arch/x86/kernel/traps.c                |   26 +-
 arch/x86/oprofile/nmi_timer_int.c      |    3 -
 drivers/acpi/acpica/nsinit.c           |    2 -
 drivers/watchdog/hpwdt.c               |    7 +-
 include/linux/nmi.h                    |    4 -
 kernel/sysctl.c                        |    9 +-
 kernel/sysctl_binary.c                 |    1 -
 kernel/watchdog.c                      |    2 +
 21 files changed, 29 insertions(+), 1433 deletions(-)
 delete mode 100644 arch/x86/kernel/apic/nmi.c

-- 
1.7.3.2

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/