diff options
author | Alfred Perlstein <alfred@FreeBSD.org> | 2001-07-10 04:22:14 +0000 |
---|---|---|
committer | Alfred Perlstein <alfred@FreeBSD.org> | 2001-07-10 04:22:14 +0000 |
commit | 82ed18ac0ce448f0cab4f87b0dea74fc3f9f9469 (patch) | |
tree | fea995714ffbc7475a040545b9e431e7309916dd /share/man/man9/BUF_REFCNT.9 | |
parent | 8dfd7bcddf26ad1aa4d1ad8ae86b11f191559a53 (diff) | |
download | src-82ed18ac0ce448f0cab4f87b0dea74fc3f9f9469.tar.gz src-82ed18ac0ce448f0cab4f87b0dea74fc3f9f9469.zip |
Document some of the kernel API dealing with locks used primarily by VFS.
Submitted by: Chad David <davidc@acns.ab.ca>
Notes
Notes:
svn path=/head/; revision=79503
Diffstat (limited to 'share/man/man9/BUF_REFCNT.9')
-rw-r--r-- | share/man/man9/BUF_REFCNT.9 | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/share/man/man9/BUF_REFCNT.9 b/share/man/man9/BUF_REFCNT.9 new file mode 100644 index 000000000000..cdf50e7b1914 --- /dev/null +++ b/share/man/man9/BUF_REFCNT.9 @@ -0,0 +1,57 @@ +.\" +.\" 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 BUF_REFCNT 9 +.Os +.Sh NAME +.Nm BUF_REFCNT +.Nd "Returns the reference count of the buffer lock" +.Sh SYNOPSIS +.Fd #include <sys/buf.h> +.Ft int +.Fo BUF_REFCNT +.Fa "struct buf *bp" +.Fc +.Sh DESCRIPTION +The +.Nm +function returns the reference count of the buffer lock. +.Pp +Its argument is: +.Bl -tag +.It Ar bp +The buffer whose lock reference count is to be returned. +.Sh SEE ALSO +.Xr buf 9 +.Xr lockcount 9 +.Xr BUF_LOCK 9 +.Xr BUF_TIMELOCK 9 +.Xr BUF_UNLOCK 9 +.Sh AUTHORS +This man page was written by Chad David. |