Merging upstream version 6.8.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 106 insertions, 0 deletions

diff --git a/man/man2/sysinfo.2 b/man/man2/sysinfo.2
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+.\" Copyright (C) 2016, Michael Kerrisk <mtk.manpages@gmail.com>
+.\" Based on an earlier version of the page where a few pieces were
+.\" copyright (C) 1993 by Dan Miner (dminer@nyx.cs.du.edu) and subsequently
+.\" others (see old changelog below).
+.\" The structure definitions are taken more or less straight from the kernel
+.\" source files.
+.\"
+.\" SPDX-License-Identifier: Linux-man-pages-copyleft
+.\"
+.\"
+.\" Modified Sat Jul 24 12:35:12 1993 by Rik Faith <faith@cs.unc.edu>
+.\" Modified Tue Oct 22 22:29:51 1996 by Eric S. Raymond <esr@thyrsus.com>
+.\" Modified Mon Aug 25 16:06:11 1997 by Nicolás Lichtmaier <nick@debian.org>
+.\"
+.TH sysinfo 2 2024-05-02 "Linux man-pages (unreleased)"
+.SH NAME
+sysinfo \- return system information
+.SH LIBRARY
+Standard C library
+.RI ( libc ", " \-lc )
+.SH SYNOPSIS
+.nf
+.B #include <sys/sysinfo.h>
+.P
+.BI "int sysinfo(struct sysinfo *" info );
+.fi
+.SH DESCRIPTION
+.BR sysinfo ()
+returns certain statistics on memory and swap usage,
+as well as the load average.
+.P
+Until Linux 2.3.16,
+.BR sysinfo ()
+returned information in the following structure:
+.P
+.in +4n
+.EX
+struct sysinfo {
+    long uptime;             /* Seconds since boot */
+    unsigned long loads[3];  /* 1, 5, and 15 minute load averages */
+    unsigned long totalram;  /* Total usable main memory size */
+    unsigned long freeram;   /* Available memory size */
+    unsigned long sharedram; /* Amount of shared memory */
+    unsigned long bufferram; /* Memory used by buffers */
+    unsigned long totalswap; /* Total swap space size */
+    unsigned long freeswap;  /* Swap space still available */
+    unsigned short procs;    /* Number of current processes */
+    char _f[22];             /* Pads structure to 64 bytes */
+};
+.EE
+.in
+.P
+In the above structure, the sizes of the memory and swap fields
+are given in bytes.
+.P
+Since Linux 2.3.23 (i386) and Linux 2.3.48
+(all architectures) the structure is:
+.P
+.in +4n
+.EX
+struct sysinfo {
+    long uptime;             /* Seconds since boot */
+    unsigned long loads[3];  /* 1, 5, and 15 minute load averages */
+    unsigned long totalram;  /* Total usable main memory size */
+    unsigned long freeram;   /* Available memory size */
+    unsigned long sharedram; /* Amount of shared memory */
+    unsigned long bufferram; /* Memory used by buffers */
+    unsigned long totalswap; /* Total swap space size */
+    unsigned long freeswap;  /* Swap space still available */
+    unsigned short procs;    /* Number of current processes */
+    unsigned long totalhigh; /* Total high memory size */
+    unsigned long freehigh;  /* Available high memory size */
+    unsigned int mem_unit;   /* Memory unit size in bytes */
+    char _f[20\-2*sizeof(long)\-sizeof(int)];
+                             /* Padding to 64 bytes */
+};
+.EE
+.in
+.P
+In the above structure,
+sizes of the memory and swap fields are given as multiples of
+.I mem_unit
+bytes.
+.SH RETURN VALUE
+On success,
+.BR sysinfo ()
+returns zero.
+On error, \-1 is returned, and
+.I errno
+is set to indicate the error.
+.SH ERRORS
+.TP
+.B EFAULT
+.I info
+is not a valid address.
+.SH STANDARDS
+Linux.
+.SH HISTORY
+Linux 0.98.pl6.
+.SH NOTES
+All of the information provided by this system call is also available via
+.I /proc/meminfo
+and
+.IR /proc/loadavg .
+.SH SEE ALSO
+.BR proc (5)