Remove pbuf(9) manual page that is now nearly 100% outdated.

2 files changed, 0 insertions, 136 deletions

diff --git a/share/man/man9/Makefile b/share/man/man9/Makefile
index eb3ff13ec602..28a636b146ce 100644
--- a/share/man/man9/Makefile
+++ b/share/man/man9/Makefile
@@ -225,7 +225,6 @@ MAN=	accept_filter.9 \
 	owll.9 \
 	own.9 \
 	panic.9 \
-	pbuf.9 \
 	PCBGROUP.9 \
 	p_candebug.9 \
 	p_cansee.9 \
@@ -1576,9 +1575,6 @@ MLINKS+=osd.9 osd_call.9 \
 	osd.9 osd_register.9 \
 	osd.9 osd_set.9
 MLINKS+=panic.9 vpanic.9
-MLINKS+=pbuf.9 getpbuf.9 \
-	pbuf.9 relpbuf.9 \
-	pbuf.9 trypbuf.9
 MLINKS+=PCBGROUP.9 in_pcbgroup_byhash.9 \
 	PCBGROUP.9 in_pcbgroup_byinpcb.9 \
 	PCBGROUP.9 in_pcbgroup_destroy.9 \
diff --git a/share/man/man9/pbuf.9 b/share/man/man9/pbuf.9
deleted file mode 100644
index 6cf6d3944bfd..000000000000
--- a/share/man/man9/pbuf.9
+++ /dev/null
@@ -1,132 +0,0 @@
-.\"
-.\" Copyright (C) 2001 Chad David <davidc@acns.ab.ca>. All rights reserved.
-.\"
-.\" Redistribution and use in source and binary forms, with or without
-.\" modification, are permitted provided that the following conditions
-.\" are met:
-.\" 1. Redistributions of source code must retain the above copyright
-.\"    notice(s), this list of conditions and the following disclaimer as
-.\"    the first lines of this file unmodified other than the possible
-.\"    addition of one or more copyright notices.
-.\" 2. Redistributions in binary form must reproduce the above copyright
-.\"    notice(s), this list of conditions and the following disclaimer in the
-.\"    documentation and/or other materials provided with the distribution.
-.\"
-.\" THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) ``AS IS'' AND ANY
-.\" EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-.\" WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-.\" DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) BE LIABLE FOR ANY
-.\" DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-.\" (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
-.\" SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
-.\" CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
-.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
-.\" DAMAGE.
-.\"
-.\" $FreeBSD$
-.\"
-.Dd July 9, 2001
-.Dt PBUF 9
-.Os
-.Sh NAME
-.Nm pbuf ,
-.Nm getpbuf ,
-.Nm trypbuf ,
-.Nm relpbuf
-.Nd "functions for managing physical buffers"
-.Sh SYNOPSIS
-.In sys/param.h
-.In sys/systm.h
-.In sys/bio.h
-.In sys/buf.h
-.Ft "struct buf *"
-.Fn getpbuf "int *pfreecnt"
-.Ft "struct buf *"
-.Fn trypbuf "int *pfreecnt"
-.Ft void
-.Fn relpbuf "struct buf *bp" "int *pfreecnt"
-.Sh DESCRIPTION
-These functions are used to allocate and release physical buffers.
-.Pp
-The physical buffers are allocated at system startup and are
-maintained in a separate pool from the main system buffers.
-They are intended for use by subsystems that cannot or should not be
-reliant on the main pool of buffers (for example the swap pager).
-The system allocates between 16 and 256 physical buffers depending
-on the amount of memory in the system.
-.Pp
-Each subsystem that allocates buffers via these calls is expected
-to manage its own percentage free counter.
-If the value is initialized to \-1 the number of buffers available
-to the subsystem is limited only by the number of physical buffers
-available.
-The number of buffers is stored in
-.Va nswbuf
-which is defined in
-.In sys/buf.h
-and initialized in
-.Fn cpu_startup .
-A recommended initialization value is 1/2
-.Va nswbuf .
-.Pp
-The
-.Fn getpbuf
-function returns the first available buffer to the user.
-If there are no buffers available,
-.Fn getpbuf
-will sleep waiting for one to become available.
-If
-.Fa pfreecnt
-is zero,
-.Fn getpbuf
-will sleep until it increases.
-.Fa pfreecnt
-is decremented prior to returning.
-.Pp
-The
-.Fn trypbuf
-function returns the first available buffer.
-If there are no buffers available,
-.Dv NULL
-is returned.
-As well, if
-.Fa pfreecnt
-is zero,
-.Dv NULL
-is returned.
-.Fa pfreecnt
-is decremented prior to returning a valid buffer.
-If
-.Dv NULL
-is returned,
-.Fa pfreecnt
-is not modified.
-.Pp
-The
-.Fn relpbuf
-function releases the buffer back to the free list.
-If the buffers
-.Va b_rcred
-or
-.Va b_wcred
-structures are not
-.Dv NULL ,
-they are freed.
-See
-.Xr crfree 9 .
-.Pp
-.Fa pfreecnt
-is incremented prior to returning.
-.Sh RETURN VALUES
-.Fn getpbuf
-and
-.Fn trypbuf
-return a pointer to the buffer.
-In the case of
-.Fn trypbuf ,
-.Dv NULL
-can also be returned indicating that there are no buffers available.
-.Sh AUTHORS
-This manual page was written by
-.An Chad David Aq Mt davidc@acns.ab.ca .