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[05/39] io_destroy.2: Use syscall(SYS_...); for system calls without a wrapper

Message ID 20210510175546.28445-6-alx.manpages@gmail.com
State New
Headers show
Series man2: SYNOPSIS: Fix headers, use syscall(), and other fixes | expand

Commit Message

Alejandro Colomar May 10, 2021, 5:55 p.m. UTC 
In this case there's a wrapper provided by libaio,
but this page documents the raw syscall.

Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
---
 man2/io_destroy.2 | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)
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Patch

diff --git a/man2/io_destroy.2 b/man2/io_destroy.2
index b439f1184..c9418336f 100644
--- a/man2/io_destroy.2
+++ b/man2/io_destroy.2
@@ -9,13 +9,18 @@ 
 io_destroy \- destroy an asynchronous I/O context
 .SH SYNOPSIS
 .nf
-.BR "#include <linux/aio_abi.h>" "          /* Defines needed types */"
+.BR "#include <linux/aio_abi.h>" "    /* Definition of " aio_context_t " */"
+.BR "#include <sys/syscall.h>" "      /* Definition of " SYS_* " constants */"
+.B #include <unistd.h>
 .PP
-.BI "int io_destroy(aio_context_t " ctx_id );
+.BI "int syscall(SYS_io_destroy, aio_context_t " ctx_id );
 .fi
 .PP
 .IR Note :
-There is no glibc wrapper for this system call; see NOTES.
+glibc provides no wrapper for
+.BR io_destroy (),
+necessitating the use of
+.BR syscall (2).
 .SH DESCRIPTION
 .IR Note :
 this page describes the raw Linux system call interface.
@@ -57,10 +62,7 @@  The asynchronous I/O system calls first appeared in Linux 2.5.
 is Linux-specific and should not be used in programs
 that are intended to be portable.
 .SH NOTES
-Glibc does not provide a wrapper for this system call.
-You could invoke it using
-.BR syscall (2).
-But instead, you probably want to use the
+You probably want to use the
 .BR io_destroy ()
 wrapper function provided by
 .\" http://git.fedorahosted.org/git/?p=libaio.git