linux-kernel - [RFC PATCH 00/16] Replace smp_read_barrier_depends() with lockless

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: <1415906662-4576-1-git-send-email-bobby.prani@gmail.com>
Date:	Thu, 13 Nov 2014 14:24:06 -0500
From:	Pranith Kumar <bobby.prani@...il.com>
To:	Herbert Xu <herbert@...dor.apana.org.au>,
	"David S. Miller" <davem@...emloft.net>,
	Cristian Stoica <cristian.stoica@...escale.com>,
	Horia Geanta <horia.geanta@...escale.com>,
	Ruchika Gupta <ruchika.gupta@...escale.com>,
	Michael Neuling <mikey@...ling.org>,
	Wolfram Sang <wsa@...-dreams.de>,
	linux-crypto@...r.kernel.org (open list:CRYPTO API),
	linux-kernel@...r.kernel.org (open list),
	Vinod Koul <vinod.koul@...el.com>,
	Dan Williams <dan.j.williams@...el.com>,
	Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
	Kyungmin Park <kyungmin.park@...sung.com>,
	Manuel Schölling <manuel.schoelling@....de>,
	Dave Jiang <dave.jiang@...el.com>,
	Rashika <rashika.kheria@...il.com>,
	dmaengine@...r.kernel.org (open list:DMA GENERIC OFFLO...),
	"K. Y. Srinivasan" <kys@...rosoft.com>,
	Haiyang Zhang <haiyangz@...rosoft.com>,
	devel@...uxdriverproject.org (open list:Hyper-V CORE AND...),
	Josh Triplett <josh@...htriplett.org>,
	Steven Rostedt <rostedt@...dmis.org>,
	Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
	Lai Jiangshan <laijs@...fujitsu.com>,
	Tejun Heo <tj@...nel.org>,
	Christoph Lameter <cl@...ux-foundation.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Paul Mackerras <paulus@...ba.org>,
	Ingo Molnar <mingo@...hat.com>,
	Arnaldo Carvalho de Melo <acme@...nel.org>,
	Kees Cook <keescook@...omium.org>,
	Andy Lutomirski <luto@...capital.net>,
	Will Drewry <wad@...omium.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Joonsoo Kim <iamjoonsoo.kim@....com>,
	Naoya Horiguchi <n-horiguchi@...jp.nec.com>,
	Jérôme Glisse <jglisse@...hat.com>,
	"Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>,
	Hugh Dickins <hughd@...gle.com>, NeilBrown <neilb@...e.de>,
	Joerg Roedel <jroedel@...e.de>,
	Sasha Levin <sasha.levin@...cle.com>,
	Paul McQuade <paulmcquad@...il.com>,
	linux-mm@...ck.org (open list:MEMORY MANAGEMENT),
	netfilter-devel@...r.kernel.org, coreteam@...filter.org,
	netdev@...r.kernel.org (open list:NETWORKING [IPv4/...)
Cc:	paulmck@...ux.vnet.ibm.com
Subject: [RFC PATCH 00/16] Replace smp_read_barrier_depends() with lockless_derefrence()

Recently lockless_dereference() was added which can be used in place of
hard-coding smp_read_barrier_depends(). 

http://lkml.iu.edu/hypermail/linux/kernel/1410.3/04561.html

The following series tries to do this.

There are still some hard-coded locations which I was not sure how to replace
with. I will send in separate patches/questions regarding them.

Pranith Kumar (16):
  crypto: caam - Remove unnecessary smp_read_barrier_depends()
  doc: memory-barriers.txt: Document use of lockless_dereference()
  drivers: dma: Replace smp_read_barrier_depends() with
    lockless_dereference()
  dcache: Replace smp_read_barrier_depends() with lockless_dereference()
  overlayfs: Replace smp_read_barrier_depends() with
    lockless_dereference()
  assoc_array: Replace smp_read_barrier_depends() with
    lockless_dereference()
  hyperv: Replace smp_read_barrier_depends() with lockless_dereference()
  rcupdate: Replace smp_read_barrier_depends() with
    lockless_dereference()
  percpu: Replace smp_read_barrier_depends() with lockless_dereference()
  perf: Replace smp_read_barrier_depends() with lockless_dereference()
  seccomp: Replace smp_read_barrier_depends() with
    lockless_dereference()
  task_work: Replace smp_read_barrier_depends() with
    lockless_dereference()
  ksm: Replace smp_read_barrier_depends() with lockless_dereference()
  slab: Replace smp_read_barrier_depends() with lockless_dereference()
  netfilter: Replace smp_read_barrier_depends() with
    lockless_dereference()
  rxrpc: Replace smp_read_barrier_depends() with lockless_dereference()

 Documentation/memory-barriers.txt |  2 +-
 drivers/crypto/caam/jr.c          |  3 ---
 drivers/dma/ioat/dma_v2.c         |  3 +--
 drivers/dma/ioat/dma_v3.c         |  3 +--
 fs/dcache.c                       |  7 ++-----
 fs/overlayfs/super.c              |  4 +---
 include/linux/assoc_array_priv.h  | 11 +++++++----
 include/linux/hyperv.h            |  9 ++++-----
 include/linux/percpu-refcount.h   |  4 +---
 include/linux/rcupdate.h          | 10 +++++-----
 kernel/events/core.c              |  3 +--
 kernel/events/uprobes.c           |  8 ++++----
 kernel/seccomp.c                  |  7 +++----
 kernel/task_work.c                |  3 +--
 lib/assoc_array.c                 |  7 -------
 mm/ksm.c                          |  7 +++----
 mm/slab.h                         |  6 +++---
 net/ipv4/netfilter/arp_tables.c   |  3 +--
 net/ipv4/netfilter/ip_tables.c    |  3 +--
 net/ipv6/netfilter/ip6_tables.c   |  3 +--
 net/rxrpc/ar-ack.c                | 22 +++++++++-------------
 security/keys/keyring.c           |  6 ------
 22 files changed, 50 insertions(+), 84 deletions(-)

-- 
1.9.1

--
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/