From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754090Ab3BRMlB (ORCPT ); Mon, 18 Feb 2013 07:41:01 -0500 Received: from e28smtp07.in.ibm.com ([122.248.162.7]:50049 "EHLO e28smtp07.in.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753786Ab3BRMk5 (ORCPT ); Mon, 18 Feb 2013 07:40:57 -0500 From: "Srivatsa S. Bhat" Subject: [PATCH v6 03/46] percpu_rwlock: Provide a way to define and init percpu-rwlocks at compile time To: tglx@linutronix.de, peterz@infradead.org, tj@kernel.org, oleg@redhat.com, paulmck@linux.vnet.ibm.com, rusty@rustcorp.com.au, mingo@kernel.org, akpm@linux-foundation.org, namhyung@kernel.org Cc: rostedt@goodmis.org, wangyun@linux.vnet.ibm.com, xiaoguangrong@linux.vnet.ibm.com, rjw@sisk.pl, sbw@mit.edu, fweisbec@gmail.com, linux@arm.linux.org.uk, nikunj@linux.vnet.ibm.com, srivatsa.bhat@linux.vnet.ibm.com, linux-pm@vger.kernel.org, linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linuxppc-dev@lists.ozlabs.org, netdev@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, walken@google.com, vincent.guittot@linaro.org Date: Mon, 18 Feb 2013 18:08:50 +0530 Message-ID: <20130218123850.26245.81751.stgit@srivatsabhat.in.ibm.com> In-Reply-To: <20130218123714.26245.61816.stgit@srivatsabhat.in.ibm.com> References: <20130218123714.26245.61816.stgit@srivatsabhat.in.ibm.com> User-Agent: StGIT/0.14.3 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Content-Scanned: Fidelis XPS MAILER x-cbid: 13021812-8878-0000-0000-000005EFB918 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add the support for defining and initializing percpu-rwlocks at compile time for those users who would like to use percpu-rwlocks really early in the boot process (even before dynamic per-CPU allocations can begin). Cc: David Howells Signed-off-by: Srivatsa S. Bhat --- include/linux/percpu-rwlock.h | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/include/linux/percpu-rwlock.h b/include/linux/percpu-rwlock.h index 74eaf4d..5590b1e 100644 --- a/include/linux/percpu-rwlock.h +++ b/include/linux/percpu-rwlock.h @@ -49,6 +49,21 @@ extern int __percpu_init_rwlock(struct percpu_rwlock *, extern void percpu_free_rwlock(struct percpu_rwlock *); + +#define __PERCPU_RWLOCK_INIT(name) \ + { \ + .rw_state = &name##_rw_state, \ + .global_rwlock = __RW_LOCK_UNLOCKED(name.global_rwlock) \ + } + +#define DEFINE_PERCPU_RWLOCK(name) \ + static DEFINE_PER_CPU(struct rw_state, name##_rw_state); \ + struct percpu_rwlock (name) = __PERCPU_RWLOCK_INIT(name); + +#define DEFINE_STATIC_PERCPU_RWLOCK(name) \ + static DEFINE_PER_CPU(struct rw_state, name##_rw_state); \ + static struct percpu_rwlock(name) = __PERCPU_RWLOCK_INIT(name); + #define percpu_init_rwlock(pcpu_rwlock) \ ({ static struct lock_class_key rwlock_key; \ __percpu_init_rwlock(pcpu_rwlock, #pcpu_rwlock, &rwlock_key); \ From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from e28smtp04.in.ibm.com (e28smtp04.in.ibm.com [122.248.162.4]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "e28smtp04.in.ibm.com", Issuer "GeoTrust SSL CA" (not verified)) by ozlabs.org (Postfix) with ESMTPS id 9DC982C033C for ; Mon, 18 Feb 2013 23:40:56 +1100 (EST) Received: from /spool/local by e28smtp04.in.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Mon, 18 Feb 2013 18:08:28 +0530 Received: from d28relay03.in.ibm.com (d28relay03.in.ibm.com [9.184.220.60]) by d28dlp02.in.ibm.com (Postfix) with ESMTP id A5F053940053 for ; Mon, 18 Feb 2013 18:10:49 +0530 (IST) Received: from d28av05.in.ibm.com (d28av05.in.ibm.com [9.184.220.67]) by d28relay03.in.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id r1ICejoC37814484 for ; Mon, 18 Feb 2013 18:10:45 +0530 Received: from d28av05.in.ibm.com (loopback [127.0.0.1]) by d28av05.in.ibm.com (8.14.4/8.13.1/NCO v10.0 AVout) with ESMTP id r1ICel3o030319 for ; Mon, 18 Feb 2013 23:40:49 +1100 From: "Srivatsa S. Bhat" Subject: [PATCH v6 03/46] percpu_rwlock: Provide a way to define and init percpu-rwlocks at compile time To: tglx@linutronix.de, peterz@infradead.org, tj@kernel.org, oleg@redhat.com, paulmck@linux.vnet.ibm.com, rusty@rustcorp.com.au, mingo@kernel.org, akpm@linux-foundation.org, namhyung@kernel.org Date: Mon, 18 Feb 2013 18:08:50 +0530 Message-ID: <20130218123850.26245.81751.stgit@srivatsabhat.in.ibm.com> In-Reply-To: <20130218123714.26245.61816.stgit@srivatsabhat.in.ibm.com> References: <20130218123714.26245.61816.stgit@srivatsabhat.in.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Cc: linux-arch@vger.kernel.org, linux@arm.linux.org.uk, nikunj@linux.vnet.ibm.com, linux-pm@vger.kernel.org, fweisbec@gmail.com, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, rostedt@goodmis.org, xiaoguangrong@linux.vnet.ibm.com, rjw@sisk.pl, sbw@mit.edu, wangyun@linux.vnet.ibm.com, srivatsa.bhat@linux.vnet.ibm.com, netdev@vger.kernel.org, vincent.guittot@linaro.org, walken@google.com, linuxppc-dev@lists.ozlabs.org, linux-arm-kernel@lists.infradead.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Add the support for defining and initializing percpu-rwlocks at compile time for those users who would like to use percpu-rwlocks really early in the boot process (even before dynamic per-CPU allocations can begin). Cc: David Howells Signed-off-by: Srivatsa S. Bhat --- include/linux/percpu-rwlock.h | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/include/linux/percpu-rwlock.h b/include/linux/percpu-rwlock.h index 74eaf4d..5590b1e 100644 --- a/include/linux/percpu-rwlock.h +++ b/include/linux/percpu-rwlock.h @@ -49,6 +49,21 @@ extern int __percpu_init_rwlock(struct percpu_rwlock *, extern void percpu_free_rwlock(struct percpu_rwlock *); + +#define __PERCPU_RWLOCK_INIT(name) \ + { \ + .rw_state = &name##_rw_state, \ + .global_rwlock = __RW_LOCK_UNLOCKED(name.global_rwlock) \ + } + +#define DEFINE_PERCPU_RWLOCK(name) \ + static DEFINE_PER_CPU(struct rw_state, name##_rw_state); \ + struct percpu_rwlock (name) = __PERCPU_RWLOCK_INIT(name); + +#define DEFINE_STATIC_PERCPU_RWLOCK(name) \ + static DEFINE_PER_CPU(struct rw_state, name##_rw_state); \ + static struct percpu_rwlock(name) = __PERCPU_RWLOCK_INIT(name); + #define percpu_init_rwlock(pcpu_rwlock) \ ({ static struct lock_class_key rwlock_key; \ __percpu_init_rwlock(pcpu_rwlock, #pcpu_rwlock, &rwlock_key); \ From mboxrd@z Thu Jan 1 00:00:00 1970 From: srivatsa.bhat@linux.vnet.ibm.com (Srivatsa S. Bhat) Date: Mon, 18 Feb 2013 18:08:50 +0530 Subject: [PATCH v6 03/46] percpu_rwlock: Provide a way to define and init percpu-rwlocks at compile time In-Reply-To: <20130218123714.26245.61816.stgit@srivatsabhat.in.ibm.com> References: <20130218123714.26245.61816.stgit@srivatsabhat.in.ibm.com> Message-ID: <20130218123850.26245.81751.stgit@srivatsabhat.in.ibm.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Add the support for defining and initializing percpu-rwlocks at compile time for those users who would like to use percpu-rwlocks really early in the boot process (even before dynamic per-CPU allocations can begin). Cc: David Howells Signed-off-by: Srivatsa S. Bhat --- include/linux/percpu-rwlock.h | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/include/linux/percpu-rwlock.h b/include/linux/percpu-rwlock.h index 74eaf4d..5590b1e 100644 --- a/include/linux/percpu-rwlock.h +++ b/include/linux/percpu-rwlock.h @@ -49,6 +49,21 @@ extern int __percpu_init_rwlock(struct percpu_rwlock *, extern void percpu_free_rwlock(struct percpu_rwlock *); + +#define __PERCPU_RWLOCK_INIT(name) \ + { \ + .rw_state = &name##_rw_state, \ + .global_rwlock = __RW_LOCK_UNLOCKED(name.global_rwlock) \ + } + +#define DEFINE_PERCPU_RWLOCK(name) \ + static DEFINE_PER_CPU(struct rw_state, name##_rw_state); \ + struct percpu_rwlock (name) = __PERCPU_RWLOCK_INIT(name); + +#define DEFINE_STATIC_PERCPU_RWLOCK(name) \ + static DEFINE_PER_CPU(struct rw_state, name##_rw_state); \ + static struct percpu_rwlock(name) = __PERCPU_RWLOCK_INIT(name); + #define percpu_init_rwlock(pcpu_rwlock) \ ({ static struct lock_class_key rwlock_key; \ __percpu_init_rwlock(pcpu_rwlock, #pcpu_rwlock, &rwlock_key); \