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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-24 04:52:22 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-24 04:52:22 +0000 |
| commit | 3d08cd331c1adcf0d917392f7e527b3f00511748 (patch) | |
| tree | 312f0d1e1632f48862f044b8bb87e602dcffb5f9 /man/man2/idle.2 | |
| parent | Adding debian version 6.7-2. (diff) | |
| download | manpages-3d08cd331c1adcf0d917392f7e527b3f00511748.tar.xz manpages-3d08cd331c1adcf0d917392f7e527b3f00511748.zip | |
Merging upstream version 6.8.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'man/man2/idle.2')
| -rw-r--r-- | man/man2/idle.2 | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/man/man2/idle.2 b/man/man2/idle.2 new file mode 100644 index 0000000..15d7a09 --- /dev/null +++ b/man/man2/idle.2 @@ -0,0 +1,44 @@ +.\" Copyright 1993 Rickard E. Faith (faith@cs.unc.edu) +.\" Portions extracted from linux/mm/swap.c: +.\" Copyright (C) 1991, 1992 Linus Torvalds +.\" +.\" SPDX-License-Identifier: Linux-man-pages-copyleft +.\" +.\" Modified 21 Aug 1994 by Michael Chastain <mec@shell.portal.com>: +.\" Added text about calling restriction (new in Linux 1.1.20 I believe). +.\" N.B. calling "idle" from user process used to hang process! +.\" Modified Thu Oct 31 14:41:15 1996 by Eric S. Raymond <esr@thyrsus.com> +.\" " +.TH idle 2 2024-05-02 "Linux man-pages (unreleased)" +.SH NAME +idle \- make process 0 idle +.SH SYNOPSIS +.nf +.B #include <unistd.h> +.P +.B [[deprecated]] int idle(void); +.fi +.SH DESCRIPTION +.BR idle () +is an internal system call used during bootstrap. +It marks the process's pages as swappable, lowers its priority, +and enters the main scheduling loop. +.BR idle () +never returns. +.P +Only process 0 may call +.BR idle (). +Any user process, even a process with superuser permission, +will receive +.BR EPERM . +.SH RETURN VALUE +.BR idle () +never returns for process 0, and always returns \-1 for a user process. +.SH ERRORS +.TP +.B EPERM +Always, for a user process. +.SH STANDARDS +Linux. +.SH HISTORY +Removed in Linux 2.3.13. |