From: Borislav Petkov <bp@alien8.de>
To: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Cc: linux-kernel@vger.kernel.org, mingo@kernel.org,
laijs@cn.fujitsu.com, dipankar@in.ibm.com,
akpm@linux-foundation.org, mathieu.desnoyers@efficios.com,
josh@joshtriplett.org, tglx@linutronix.de, peterz@infradead.org,
rostedt@goodmis.org, dhowells@redhat.com, edumazet@google.com,
dvhart@linux.intel.com, fweisbec@gmail.com, oleg@redhat.com,
bobby.prani@gmail.com, linux-edac@vger.kernel.org,
Tony Luck <tony.luck@intel.com>
Subject: Re: [PATCH tip/core/rcu 2/4] rcu: Eliminate array-index-based RCU primitives
Date: Wed, 13 May 2015 15:08:45 +0200 [thread overview]
Message-ID: <20150513130845.GI1517@pd.tnic> (raw)
In-Reply-To: <1431465524-32246-2-git-send-email-paulmck@linux.vnet.ibm.com>
On Tue, May 12, 2015 at 02:18:42PM -0700, Paul E. McKenney wrote:
> From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
>
> Now that rcu_access_index() and rcu_dereference_index_check() are no
> longer used, the commit removes them from the RCU API. This means that
> RCU's data dependencies now involve only pointers, give or take the
> occasional cast to and then back from an integer type to do pointer
> arithmetic. This in turn eliminates the need for a number of operations
> on values carrying RCU data dependencies.
>
> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
> Cc: linux-edac@vger.kernel.org
> Cc: Tony Luck <tony.luck@intel.com>
> Cc: Borislav Petkov <bp@alien8.de>
> ---
> include/linux/rcupdate.h | 50 ------------------------------------------------
> 1 file changed, 50 deletions(-)
Diffstats like this one are my favourite ones!
Acked-by: Borislav Petkov <bp@suse.de>
--
Regards/Gruss,
Boris.
ECO tip #101: Trim your mails when you reply.
--
next prev parent reply other threads:[~2015-05-13 13:08 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-05-12 21:18 [PATCH tip/core/rcu 0/4] Array-based RCU removals for 4.2 Paul E. McKenney
2015-05-12 21:18 ` [PATCH tip/core/rcu 1/4] mce: Stop using array-index-based RCU primitives Paul E. McKenney
2015-05-12 21:18 ` [PATCH tip/core/rcu 2/4] rcu: Eliminate " Paul E. McKenney
2015-05-13 13:08 ` Borislav Petkov [this message]
2015-05-14 20:27 ` Paul E. McKenney
2015-05-12 21:18 ` [PATCH tip/core/rcu 3/4] documentation: RCU-protected array indexes no longer supported Paul E. McKenney
2015-05-12 21:18 ` [PATCH tip/core/rcu 4/4] mce: mce_chrdev_write() can be static Paul E. McKenney
2015-05-13 10:31 ` [PATCH tip/core/rcu 1/4] mce: Stop using array-index-based RCU primitives Borislav Petkov
2015-05-13 12:51 ` Paul E. McKenney
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