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ioprio_set.2: Use syscall(SYS_...); for system calls without a wrapper 

Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
This commit is contained in:
Alejandro Colomar 2021-05-10 19:55:17 +02:00 committed by Michael Kerrisk
parent 2f8cb589fb
commit 0d961e8818
1 changed files with 9 additions and 6 deletions
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15
man2/ioprio_set.2
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@ -26,12 +26,18 @@
ioprio_get, ioprio_set \- get/set I/O scheduling class and priority
.SH SYNOPSIS
.nf
.BI "int ioprio_get(int " which ", int " who );
.BI "int ioprio_set(int " which ", int " who ", int " ioprio );
.BR "#include <linux/ioprio.h> " "/* Definition of " IOPRIO_* " constants */"
.BR "#include <sys/syscall.h> " "/* Definition of " SYS_* " constants */"
.B #include <unistd.h>
.PP
.BI "int syscall(SYS_ioprio_get, int " which ", int " who );
.BI "int syscall(SYS_ioprio_set, int " which ", int " who ", int " ioprio );
.fi
.PP
.IR Note :
There are no glibc wrappers for these system calls; see NOTES.
glibc provides no wrappers for these system calls,
necessitating the use of
.BR syscall (2).
.SH DESCRIPTION
The
.BR ioprio_get ()
@ -199,9 +205,6 @@ kernel 2.6.13.
.SH CONFORMING TO
These system calls are Linux-specific.
.SH NOTES
Glibc does not provide a wrapper for these system calls; call them using
.BR syscall (2).
.PP
Two or more processes or threads can share an I/O context.
This will be the case when
.BR clone (2)