linux-kernel - [PATCH 34/40] trace syscalls: Convert generic syscalls without long return type

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Date:	Wed, 23 Jun 2010 20:03:15 +1000
From:	"Ian Munsie" <imunsie@....ibm.com>
To:	linux-kernel@...r.kernel.org, linuxppc-dev@...abs.org
Cc:	Jason Baron <jbaron@...hat.com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Steven Rostedt <rostedt@...dmis.org>,
	Ingo Molnar <mingo@...hat.com>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Paul Mackerras <paulus@...ba.org>,
	Michael Ellerman <michael@...erman.id.au>,
	Ian Munsie <imunsie@....ibm.com>,
	Alexander Viro <viro@...iv.linux.org.uk>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Jeff Moyer <jmoyer@...hat.com>,
	David Howells <dhowells@...hat.com>,
	Oleg Nesterov <oleg@...hat.com>, linux-fsdevel@...r.kernel.org
Subject: [PATCH 34/40] trace syscalls: Convert generic syscalls without long return type

From: Ian Munsie <imunsie@....ibm.com>

This patch converts a number of syscalls from the generic code that had
return types other than long to use the new COMPAT_SYSCALL_DEFINEx_RET
macros so their metadata is recorded for tracing.

Signed-off-by: Ian Munsie <imunsie@....ibm.com>
---
 fs/compat.c     |   24 ++++++++++++------------
 ipc/compat_mq.c |    8 ++++----
 2 files changed, 16 insertions(+), 16 deletions(-)

diff --git a/fs/compat.c b/fs/compat.c
index 9897b7b..edfa4b5 100644
--- a/fs/compat.c
+++ b/fs/compat.c
@@ -1224,9 +1224,9 @@ out:
 	return ret;
 }
 
-asmlinkage ssize_t
-compat_sys_readv(unsigned long fd, const struct compat_iovec __user *vec,
-		 unsigned long vlen)
+COMPAT_SYSCALL_DEFINE3_RET(ssize_t, readv, unsigned long, fd,
+		const struct compat_iovec __user *, vec,
+		unsigned long, vlen)
 {
 	struct file *file;
 	int fput_needed;
@@ -1240,9 +1240,9 @@ compat_sys_readv(unsigned long fd, const struct compat_iovec __user *vec,
 	return ret;
 }
 
-asmlinkage ssize_t
-compat_sys_preadv(unsigned long fd, const struct compat_iovec __user *vec,
-		  unsigned long vlen, u32 pos_low, u32 pos_high)
+COMPAT_SYSCALL_DEFINE5_RET(ssize_t, preadv, unsigned long, fd,
+		const struct compat_iovec __user *, vec,
+		unsigned long, vlen, u32, pos_low, u32, pos_high)
 {
 	loff_t pos = ((loff_t)pos_high << 32) | pos_low;
 	struct file *file;
@@ -1281,9 +1281,9 @@ out:
 	return ret;
 }
 
-asmlinkage ssize_t
-compat_sys_writev(unsigned long fd, const struct compat_iovec __user *vec,
-		  unsigned long vlen)
+COMPAT_SYSCALL_DEFINE3_RET(ssize_t, writev, unsigned long, fd,
+		const struct compat_iovec __user *, vec,
+		unsigned long, vlen)
 {
 	struct file *file;
 	int fput_needed;
@@ -1297,9 +1297,9 @@ compat_sys_writev(unsigned long fd, const struct compat_iovec __user *vec,
 	return ret;
 }
 
-asmlinkage ssize_t
-compat_sys_pwritev(unsigned long fd, const struct compat_iovec __user *vec,
-		   unsigned long vlen, u32 pos_low, u32 pos_high)
+COMPAT_SYSCALL_DEFINE5_RET(ssize_t, pwritev, unsigned long, fd,
+		const struct compat_iovec __user *, vec,
+		unsigned long, vlen, u32, pos_low, u32, pos_high)
 {
 	loff_t pos = ((loff_t)pos_high << 32) | pos_low;
 	struct file *file;
diff --git a/ipc/compat_mq.c b/ipc/compat_mq.c
index 53593d3..22a394e 100644
--- a/ipc/compat_mq.c
+++ b/ipc/compat_mq.c
@@ -89,10 +89,10 @@ COMPAT_SYSCALL_DEFINE5(mq_timedsend, mqd_t, mqdes,
 			msg_prio, u_ts);
 }
 
-asmlinkage ssize_t compat_sys_mq_timedreceive(mqd_t mqdes,
-			char __user *u_msg_ptr,
-			size_t msg_len, unsigned int __user *u_msg_prio,
-			const struct compat_timespec __user *u_abs_timeout)
+COMPAT_SYSCALL_DEFINE5_RET(ssize_t, mq_timedreceive, mqd_t, mqdes,
+			char __user *, u_msg_ptr,
+			size_t, msg_len, unsigned int __user *, u_msg_prio,
+			const struct compat_timespec __user *, u_abs_timeout)
 {
 	struct timespec __user *u_ts;
 	if (compat_prepare_timeout(&u_ts, u_abs_timeout))
-- 
1.7.1

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