From: Alejandro Colomar <alx.manpages@gmail.com>
Date: Thu, 11 Feb 2021 17:44:57 +0000 (+0100)
Subject: process_madvise.2: SYNOPSIS: Fix prototype parameter type
X-Git-Tag: man-pages-5.11~201
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=147ad5cedc08a11c9c8be8defcb6d26b456710da;p=thirdparty%2Fman-pages.git

process_madvise.2: SYNOPSIS: Fix prototype parameter type

The type of vlen is 'size_t', and not 'unsigned int'.  Fix it.

......

$ grep_syscall process_madvise
mm/madvise.c:1161:
SYSCALL_DEFINE5(process_madvise, int, pidfd, const struct iovec __user *, vec,
		size_t, vlen, int, behavior, unsigned int, flags)
include/linux/syscalls.h:887:
asmlinkage long sys_process_madvise(int pidfd, const struct iovec __user *vec,
			size_t vlen, int behavior, unsigned int flags);

function grep_syscall()
{
	if ! [ -v 1 ]; then
		>&2 echo "Usage: ${FUNCNAME[0]} <syscall>";
		return ${EX_USAGE};
	fi

	find * -type f \
	|grep '\.c$' \
	|sort -V \
	|xargs pcregrep -Mn "(?s)^\w*SYSCALL_DEFINE.\(${1},.*?\)" \
	|sed -E 's/^[^:]+:[0-9]+:/&\n/';

	find * -type f \
	|grep '\.[ch]$' \
	|sort -V \
	|xargs pcregrep -Mn "(?s)^asmlinkage\s+[\w\s]+\**sys_${1}\s*\(.*?\)" \
	|sed -E 's/^[^:]+:[0-9]+:/&\n/';
}

Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
---

diff --git a/man2/process_madvise.2 b/man2/process_madvise.2
index 3767d8d4ad..13950936e2 100644
--- a/man2/process_madvise.2
+++ b/man2/process_madvise.2
@@ -33,7 +33,7 @@ process_madvise \- give advice about use of memory to a process
 .B #include <sys/uio.h>
 .PP
 .BI "ssize_t process_madvise(int " pidfd ", const struct iovec *" iovec ,
-.BI "                        unsigned long " vlen ", int " advice ,
+.BI "                        size_t " vlen ", int " advice ,
 .BI "                        unsigned int " flags ");"
 .fi
 .PP