linux-kernel - [PATCH RFC tip/core/rcu 0/9] Add rcu_sync and implement percpu

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 for Android: free password hash cracker in your pocket

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

Message-ID: <20150829032643.GA19166@linux.vnet.ibm.com>
Date:	Fri, 28 Aug 2015 20:26:43 -0700
From:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
To:	linux-kernel@...r.kernel.org
Cc:	mingo@...nel.org, jiangshanlai@...il.com, dipankar@...ibm.com,
	akpm@...ux-foundation.org, mathieu.desnoyers@...icios.com,
	josh@...htriplett.org, tglx@...utronix.de, peterz@...radead.org,
	rostedt@...dmis.org, dhowells@...hat.com, edumazet@...gle.com,
	dvhart@...ux.intel.com, fweisbec@...il.com, oleg@...hat.com,
	bobby.prani@...il.com
Subject: [PATCH RFC tip/core/rcu 0/9] Add rcu_sync and implement percpu_rwsem
 in terms of it

Hello!

This series implements an rcu_sync primitive and updates percpu_rwsem to
be implemented in terms of it.  This is an updated version of the series
posted by Oleg Nesterov, responding to feedback from Ingo Molnar.  The
patches in this series, all courtesy of Oleg (and some in turn based
on work by Peter Zijlstra), are as follows:

1.	Create rcu_sync infrastructure.

2.	Simplify rcu_sync using new rcu_sync_ops structure.

3.	Add CONFIG_PROVE_RCU checks.

4.	Introduce rcu_sync_dtor().

5.	Make percpu_free_rwsem() after kzalloc() safe.

6.	Make use of the rcu_sync infrastructure for percpu_rwsem.

7.	Fix the percpu_rwsem comments outdated by rcu_sync.

8.	Clean up the lockdep annotations in percpu_down_read().

9.	Change _wait_rcu_gp() to work around GCC bug 67055.

							Thanx, Paul

------------------------------------------------------------------------

 b/include/linux/percpu-rwsem.h  |    3 
 b/include/linux/rcu_sync.h      |  161 +++++++++++++++++++-----
 b/include/linux/rcupdate.h      |   11 -
 b/kernel/locking/percpu-rwsem.c |   85 ++++---------
 b/kernel/rcu/Makefile           |    2 
 b/kernel/rcu/sync.c             |  259 ++++++++++++++++++++++++++++++++++++----
 6 files changed, 401 insertions(+), 120 deletions(-)

--
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/