Adding upstream version 4.22.0.upstream/4.22.0

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

1 files changed, 58 insertions, 0 deletions

diff --git a/upstream/mageia-cauldron/man9/skb_peek.9 b/upstream/mageia-cauldron/man9/skb_peek.9
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+.\" -*- nroff -*-
+.\"
+.\" copyright (C) 1997 Cyrus Durgin <cider@speakeasy.org>
+.\"
+.\" Permission is granted to make and distribute verbatim copies of this
+.\" manual provided the copyright notice and this permission notice are
+.\" preserved on all copies.
+.\"
+.\" Permission is granted to copy and distribute modified versions of this
+.\" manual under the conditions for verbatim copying, provided that the
+.\" entire resulting derived work is distributed under the terms of a
+.\" permission notice identical to this one
+.\" 
+.\" Since the Linux kernel and libraries are constantly changing, this
+.\" manual page may be incorrect or out-of-date.  The author(s) assume no
+.\" responsibility for errors or omissions, or for damages resulting from
+.\" the use of the information contained herein.  The author(s) may not
+.\" have taken the same level of care in the production of this manual,
+.\" which is licensed free of charge, as they might when working
+.\" professionally.
+.\" 
+.\" Formatted or processed versions of this manual, if unaccompanied by
+.\" the source, must acknowledge the copyright and authors of this work.
+.\"
+.TH SKB_PEEK 9 "November 24, 1997" "Linux DDI" "Networking Functions"
+.hlm 0
+.na
+.SH NAME
+skb_peek \- peek an sk_buff
+.SH SYNOPSIS
+.B #include <linux/skbuff.h>
+.HP
+.BI "struct sk_buff *skb_peek(struct sk_buff_head " *list_ ");"
+.hlm 1
+.ad
+.SH DESCRIPTION
+The \fBskb_peek\fP function extracts the head element of \fIlist_\fP,
+without modifying \fIlist_\fP.  It is important to note that this is
+not necessarily a safe operation, as \fIlist_\fP maintains the original
+sk_buff, and other operations on \fIlist_\fP may effect it.  To be safe,
+either disable interrupts using \fBcli\fP(9), call \fBskb_peek\fP, copy
+the data necessary to continue, and re-enable interrupts using
+\fBsti\fP(9), or use \fBskb_dequeue\fP(9).
+.SH "RETURN VALUE"
+Returns a pointer to sk_buff if there is a next element on the \fIlist_\fP.
+Otherwise, returns NULL.
+.SH AVAILABILITY
+Linux 1.0+
+.SH "SEE ALSO"
+.hlm 0
+.na
+.BR intro "(9), " skb_unlink "(9), " skb_dequeue "(9)"
+.ad
+.hlm 1
+.PP
+/usr/src/linux/net/appletalk/ddp.c /usr/src/linux/net/core/datagram.c /usr/src/linux/net/ipv4/tcp.c /usr/src/linux/net/ipv4/udp.c /usr/src/linux/net/unix/af_unix.c
+.SH AUTHOR
+Cyrus Durgin <cider@speakeasy.org>