From: "Radim Krčmář" <rkrcmar@redhat.com>
To: linux-kernel@vger.kernel.org
Cc: kvm@vger.kernel.org, linux-arch@vger.kernel.org,
rostedt@goodmis.org, pbonzini@redhat.com, tglx@linutronix.de,
mingo@redhat.com, hpa@zytor.com, x86@kernel.org, arnd@arndb.de,
rusty@rustcorp.com.au, "Radim Krčmář" <rkrcmar@redhat.com>
Subject: [PATCH v2 0/5] static_key: deferred key fixes and improvements
Date: Sat, 7 Dec 2013 01:40:01 +0100 [thread overview]
Message-ID: <1386376806-924-1-git-send-email-rkrcmar@redhat.com> (raw)
This series is made out of three logical parts
- patches 1 and 2 fix panic caused by accessing freed module memory
- patches 3 and 4 fix miscounting by static_key_slow_dec_deferred()
- patch 5 introduces a minor optimization
More jump_label/static_key patches are prepared, but I returned to them
yesterday and implemented a variable jump length on amd64, which
requires some refactoring, porting to remaining architectures, and
retesting, so I'm posting this independent part before it gets overtaken
by higher priority work again
=> This series was tested with additional patches
^ I wrote this on Tuesday and then moved to higher priority work, but
returned with enough courage to post a different first part.
The first part was tested on amd64, s390x and ppc64, the rest also on
armv7.
Applies to next-20131206 and v3.13-rc3.
Radim Krčmář (5):
static_key: add a section for deferred keys
static_key: cancel rate limit timer on rmmod
static_key: add static_key_slow_inc_deferred()
static_key: keep deferred enabled counter debt
static_key: improve deferred inc behavior
arch/x86/kvm/lapic.c | 11 +++++----
arch/x86/kvm/lapic.h | 4 +--
include/asm-generic/vmlinux.lds.h | 1 +
include/linux/jump_label_ratelimit.h | 10 ++++++++
include/linux/module.h | 3 +++
include/linux/perf_event.h | 2 +-
kernel/events/core.c | 8 +++---
kernel/jump_label.c | 47 +++++++++++++++++++++++++++++++-----
kernel/module.c | 4 +++
9 files changed, 72 insertions(+), 18 deletions(-)
--
1.8.4.2
next reply other threads:[~2013-12-07 0:40 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-12-07 0:40 Radim Krčmář [this message]
2013-12-07 0:40 ` [PATCH v2 0/5] static_key: deferred key fixes and improvements Radim Krčmář
2013-12-07 0:40 ` [PATCH v2 1/5] static_key: add a section for deferred keys Radim Krčmář
2013-12-07 0:40 ` Radim Krčmář
2013-12-07 0:40 ` [PATCH v2 2/5] static_key: cancel rate limit timer on rmmod Radim Krčmář
2013-12-07 0:40 ` Radim Krčmář
2013-12-07 0:40 ` [PATCH v2 3/5] static_key: add static_key_slow_inc_deferred() Radim Krčmář
2013-12-07 0:40 ` Radim Krčmář
2013-12-07 0:40 ` [PATCH v2 4/5] static_key: keep deferred enabled counter debt Radim Krčmář
2013-12-07 0:40 ` Radim Krčmář
2013-12-07 0:40 ` [PATCH v2 5/5] static_key: improve deferred inc behavior Radim Krčmář
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