Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262567AbVCKAP6 (ORCPT ); Thu, 10 Mar 2005 19:15:58 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262818AbVCKAPw (ORCPT ); Thu, 10 Mar 2005 19:15:52 -0500 Received: from [205.233.219.253] ([205.233.219.253]:56268 "EHLO conifer.conscoop.ottawa.on.ca") by vger.kernel.org with ESMTP id S262567AbVCKAHR (ORCPT ); Thu, 10 Mar 2005 19:07:17 -0500 Date: Thu, 10 Mar 2005 19:06:46 -0500 From: Jody McIntyre To: linux-kernel@vger.kernel.org Cc: willy@debian.org Subject: [PATCH, RFC 1/3] Add sem_getcount() to arches that lack it Message-ID: <20050311000646.GJ1111@conscoop.ottawa.on.ca> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.4i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 13412 Lines: 348 parisc and frv define sem_getcount() in semaphore.h, which returns the current semaphore value. This is cleaner than doing atomic_read(&semaphore.count), currently done in drivers/ieee1394/nodemgr.c and fs/xfs/linux-2.6/xfs_buf.c, and will work on all architectures if sem_getcount() is added. This patch adds sem_getcount(). I will also send patches that convert ieee1394 and xfs to use sem_getcount(), which fixes a warning on parisc (and presumably frv.) Any objections? Jody -- Adds sem_getcount() to architectures that were missing it. Renames sema_count on arm for this purpose (sema_count has no current callers.) Tested on i386, ia64, parisc. Signed-off-by: Jody McIntyre Index: 1394-dev/include/asm-h8300/semaphore.h =================================================================== --- 1394-dev.orig/include/asm-h8300/semaphore.h 2005-02-10 12:39:28.000000000 -0500 +++ 1394-dev/include/asm-h8300/semaphore.h 2005-03-08 16:38:06.000000000 -0500 @@ -59,6 +59,11 @@ static inline void init_MUTEX_LOCKED (st sema_init(sem, 0); } +static inline int sem_getcount(struct semaphore *sem) +{ + return atomic_read(&sem->count); +} + asmlinkage void __down_failed(void /* special register calling convention */); asmlinkage int __down_failed_interruptible(void /* params in registers */); asmlinkage int __down_failed_trylock(void /* params in registers */); Index: 1394-dev/include/asm-sh64/semaphore.h =================================================================== --- 1394-dev.orig/include/asm-sh64/semaphore.h 2005-02-10 12:39:41.000000000 -0500 +++ 1394-dev/include/asm-sh64/semaphore.h 2005-03-08 16:42:14.000000000 -0500 @@ -72,6 +72,11 @@ static inline void init_MUTEX_LOCKED (st sema_init(sem, 0); } +static inline int sem_getcount(struct semaphore *sem) +{ + return atomic_read(&sem->count); +} + #if 0 asmlinkage void __down_failed(void /* special register calling convention */); asmlinkage int __down_failed_interruptible(void /* params in registers */); Index: 1394-dev/include/asm-m68knommu/semaphore.h =================================================================== --- 1394-dev.orig/include/asm-m68knommu/semaphore.h 2005-02-10 12:39:29.000000000 -0500 +++ 1394-dev/include/asm-m68knommu/semaphore.h 2005-03-08 16:39:18.000000000 -0500 @@ -59,6 +59,11 @@ static inline void init_MUTEX_LOCKED (st sema_init(sem, 0); } +static inline int sem_getcount(struct semaphore *sem) +{ + return atomic_read(&sem->count); +} + asmlinkage void __down_failed(void /* special register calling convention */); asmlinkage int __down_failed_interruptible(void /* params in registers */); asmlinkage int __down_failed_trylock(void /* params in registers */); Index: 1394-dev/include/asm-m32r/semaphore.h =================================================================== --- 1394-dev.orig/include/asm-m32r/semaphore.h 2005-02-10 12:39:28.000000000 -0500 +++ 1394-dev/include/asm-m32r/semaphore.h 2005-03-08 16:38:26.000000000 -0500 @@ -64,6 +64,11 @@ static inline void init_MUTEX_LOCKED (st sema_init(sem, 0); } +static inline int sem_getcount(struct semaphore *sem) +{ + return atomic_read(&sem->count); +} + asmlinkage void __down_failed(void /* special register calling convention */); asmlinkage int __down_failed_interruptible(void /* params in registers */); asmlinkage int __down_failed_trylock(void /* params in registers */); Index: 1394-dev/include/asm-ia64/semaphore.h =================================================================== --- 1394-dev.orig/include/asm-ia64/semaphore.h 2005-02-10 12:39:28.000000000 -0500 +++ 1394-dev/include/asm-ia64/semaphore.h 2005-03-08 16:38:21.000000000 -0500 @@ -50,6 +50,11 @@ init_MUTEX_LOCKED (struct semaphore *sem sema_init(sem, 0); } +static inline int sem_getcount(struct semaphore *sem) +{ + return atomic_read(&sem->count); +} + extern void __down (struct semaphore * sem); extern int __down_interruptible (struct semaphore * sem); extern int __down_trylock (struct semaphore * sem); Index: 1394-dev/include/asm-i386/semaphore.h =================================================================== --- 1394-dev.orig/include/asm-i386/semaphore.h 2005-02-10 12:39:28.000000000 -0500 +++ 1394-dev/include/asm-i386/semaphore.h 2005-03-08 16:13:56.000000000 -0500 @@ -87,6 +87,13 @@ static inline void init_MUTEX_LOCKED (st sema_init(sem, 0); } +typedef atomic_t semcount_t; + +static inline int sem_getcount(struct semaphore *sem) +{ + return atomic_read(&sem->count); +} + fastcall void __down_failed(void /* special register calling convention */); fastcall int __down_failed_interruptible(void /* params in registers */); fastcall int __down_failed_trylock(void /* params in registers */); Index: 1394-dev/include/asm-sparc/semaphore.h =================================================================== --- 1394-dev.orig/include/asm-sparc/semaphore.h 2005-02-10 12:39:41.000000000 -0500 +++ 1394-dev/include/asm-sparc/semaphore.h 2005-03-08 16:42:37.000000000 -0500 @@ -48,6 +48,11 @@ static inline void init_MUTEX_LOCKED (st sema_init(sem, 0); } +static inline int sem_getcount(struct semaphore *sem) +{ + return atomic_read(&sem->count); +} + extern void __down(struct semaphore * sem); extern int __down_interruptible(struct semaphore * sem); extern int __down_trylock(struct semaphore * sem); Index: 1394-dev/include/asm-x86_64/semaphore.h =================================================================== --- 1394-dev.orig/include/asm-x86_64/semaphore.h 2005-02-10 12:39:41.000000000 -0500 +++ 1394-dev/include/asm-x86_64/semaphore.h 2005-03-08 16:43:23.000000000 -0500 @@ -88,6 +88,11 @@ static inline void init_MUTEX_LOCKED (st sema_init(sem, 0); } +static inline int sem_getcount(struct semaphore *sem) +{ + return atomic_read(&sem->count); +} + asmlinkage void __down_failed(void /* special register calling convention */); asmlinkage int __down_failed_interruptible(void /* params in registers */); asmlinkage int __down_failed_trylock(void /* params in registers */); Index: 1394-dev/include/asm-ppc/semaphore.h =================================================================== --- 1394-dev.orig/include/asm-ppc/semaphore.h 2005-02-10 12:39:40.000000000 -0500 +++ 1394-dev/include/asm-ppc/semaphore.h 2005-03-08 16:41:22.000000000 -0500 @@ -62,6 +62,11 @@ static inline void init_MUTEX_LOCKED (st sema_init(sem, 0); } +static inline int sem_getcount(struct semaphore *sem) +{ + return atomic_read(&sem->count); +} + extern void __down(struct semaphore * sem); extern int __down_interruptible(struct semaphore * sem); extern void __up(struct semaphore * sem); Index: 1394-dev/include/asm-ppc64/semaphore.h =================================================================== --- 1394-dev.orig/include/asm-ppc64/semaphore.h 2005-02-10 12:39:40.000000000 -0500 +++ 1394-dev/include/asm-ppc64/semaphore.h 2005-03-08 16:41:32.000000000 -0500 @@ -56,6 +56,11 @@ static inline void init_MUTEX_LOCKED (st sema_init(sem, 0); } +static inline int sem_getcount(struct semaphore *sem) +{ + return atomic_read(&sem->count); +} + extern void __down(struct semaphore * sem); extern int __down_interruptible(struct semaphore * sem); extern void __up(struct semaphore * sem); Index: 1394-dev/include/asm-arm26/semaphore.h =================================================================== --- 1394-dev.orig/include/asm-arm26/semaphore.h 2005-02-10 12:39:28.000000000 -0500 +++ 1394-dev/include/asm-arm26/semaphore.h 2005-03-08 16:36:37.000000000 -0500 @@ -51,6 +51,11 @@ static inline void init_MUTEX_LOCKED(str sema_init(sem, 0); } +static inline int sem_getcount(struct semaphore *sem) +{ + return atomic_read(&sem->count); +} + /* * special register calling convention */ Index: 1394-dev/include/asm-s390/semaphore.h =================================================================== --- 1394-dev.orig/include/asm-s390/semaphore.h 2005-02-10 12:39:40.000000000 -0500 +++ 1394-dev/include/asm-s390/semaphore.h 2005-03-08 16:41:41.000000000 -0500 @@ -53,6 +53,11 @@ static inline void init_MUTEX_LOCKED (st sema_init(sem, 0); } +static inline int sem_getcount(struct semaphore *sem) +{ + return atomic_read(&sem->count); +} + asmlinkage void __down(struct semaphore * sem); asmlinkage int __down_interruptible(struct semaphore * sem); asmlinkage int __down_trylock(struct semaphore * sem); Index: 1394-dev/include/asm-m68k/semaphore.h =================================================================== --- 1394-dev.orig/include/asm-m68k/semaphore.h 2005-02-10 12:39:28.000000000 -0500 +++ 1394-dev/include/asm-m68k/semaphore.h 2005-03-08 16:39:10.000000000 -0500 @@ -60,6 +60,11 @@ static inline void init_MUTEX_LOCKED (st sema_init(sem, 0); } +static inline int sem_getcount(struct semaphore *sem) +{ + return atomic_read(&sem->count); +} + asmlinkage void __down_failed(void /* special register calling convention */); asmlinkage int __down_failed_interruptible(void /* params in registers */); asmlinkage int __down_failed_trylock(void /* params in registers */); Index: 1394-dev/include/asm-arm/semaphore.h =================================================================== --- 1394-dev.orig/include/asm-arm/semaphore.h 2005-02-10 12:39:27.000000000 -0500 +++ 1394-dev/include/asm-arm/semaphore.h 2005-03-08 16:36:00.000000000 -0500 @@ -49,7 +49,7 @@ static inline void init_MUTEX_LOCKED(str sema_init(sem, 0); } -static inline int sema_count(struct semaphore *sem) +static inline int sem_getcount(struct semaphore *sem) { return atomic_read(&sem->count); } Index: 1394-dev/include/asm-sparc64/semaphore.h =================================================================== --- 1394-dev.orig/include/asm-sparc64/semaphore.h 2005-02-10 12:39:41.000000000 -0500 +++ 1394-dev/include/asm-sparc64/semaphore.h 2005-03-08 16:42:51.000000000 -0500 @@ -47,6 +47,11 @@ static inline void init_MUTEX_LOCKED (st sema_init(sem, 0); } +static inline int sem_getcount(struct semaphore *sem) +{ + return atomic_read(&sem->count); +} + extern void up(struct semaphore *sem); extern void down(struct semaphore *sem); extern int down_trylock(struct semaphore *sem); Index: 1394-dev/include/asm-sh/semaphore.h =================================================================== --- 1394-dev.orig/include/asm-sh/semaphore.h 2005-02-10 12:39:40.000000000 -0500 +++ 1394-dev/include/asm-sh/semaphore.h 2005-03-08 16:42:04.000000000 -0500 @@ -65,6 +65,11 @@ static inline void init_MUTEX_LOCKED (st sema_init(sem, 0); } +static inline int sem_getcount(struct semaphore *sem) +{ + return atomic_read(&sem->count); +} + #if 0 asmlinkage void __down_failed(void /* special register calling convention */); asmlinkage int __down_failed_interruptible(void /* params in registers */); Index: 1394-dev/include/asm-mips/semaphore.h =================================================================== --- 1394-dev.orig/include/asm-mips/semaphore.h 2005-02-10 12:39:29.000000000 -0500 +++ 1394-dev/include/asm-mips/semaphore.h 2005-03-08 16:39:31.000000000 -0500 @@ -70,6 +70,11 @@ static inline void init_MUTEX_LOCKED (st sema_init(sem, 0); } +static inline int sem_getcount(struct semaphore *sem) +{ + return atomic_read(&sem->count); +} + extern void __down(struct semaphore * sem); extern int __down_interruptible(struct semaphore * sem); extern void __up(struct semaphore * sem); Index: 1394-dev/include/asm-alpha/semaphore.h =================================================================== --- 1394-dev.orig/include/asm-alpha/semaphore.h 2005-02-10 12:39:27.000000000 -0500 +++ 1394-dev/include/asm-alpha/semaphore.h 2005-03-08 16:13:47.000000000 -0500 @@ -57,6 +57,11 @@ static inline void init_MUTEX_LOCKED (st sema_init(sem, 0); } +static inline int sem_getcount(struct semaphore *sem) +{ + return atomic_read(&sem.count); +} + extern void down(struct semaphore *); extern void __down_failed(struct semaphore *); extern int down_interruptible(struct semaphore *); Index: 1394-dev/include/asm-cris/semaphore.h =================================================================== --- 1394-dev.orig/include/asm-cris/semaphore.h 2005-02-10 12:39:28.000000000 -0500 +++ 1394-dev/include/asm-cris/semaphore.h 2005-03-08 16:37:12.000000000 -0500 @@ -57,6 +57,11 @@ extern inline void init_MUTEX_LOCKED (st sema_init(sem, 0); } +static inline int sem_getcount(struct semaphore *sem) +{ + return atomic_read(&sem->count); +} + extern void __down(struct semaphore * sem); extern int __down_interruptible(struct semaphore * sem); extern int __down_trylock(struct semaphore * sem); Index: 1394-dev/include/asm-v850/semaphore.h =================================================================== --- 1394-dev.orig/include/asm-v850/semaphore.h 2005-02-10 12:39:41.000000000 -0500 +++ 1394-dev/include/asm-v850/semaphore.h 2005-03-08 16:43:13.000000000 -0500 @@ -42,6 +42,11 @@ static inline void init_MUTEX_LOCKED (st sema_init (sem, 0); } +static inline int sem_getcount(struct semaphore *sem) +{ + return atomic_read(&sem->count); +} + /* * special register calling convention */ -- - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/