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Thu, 25 May 2023 22:10:30 GMT (envelope-from git) Date: Thu, 25 May 2023 22:10:30 GMT Message-Id: <202305252210.34PMAU2c032853@gitrepo.freebsd.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org From: Mark Johnston Subject: git: db289ababf90 - main - posixshmcontrol.1: Document posixshmcontrol create -l List-Id: Commit messages for the main branch of the src repository List-Archive: https://lists.freebsd.org/archives/dev-commits-src-main List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-dev-commits-src-main@freebsd.org X-BeenThere: dev-commits-src-main@freebsd.org MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: markj X-Git-Repository: src X-Git-Refname: refs/heads/main X-Git-Reftype: branch X-Git-Commit: db289ababf9053236deb945e70167947d36b8692 Auto-Submitted: auto-generated X-ThisMailContainsUnwantedMimeParts: N The branch main has been updated by markj: URL: https://cgit.FreeBSD.org/src/commit/?id=db289ababf9053236deb945e70167947d36b8692 commit db289ababf9053236deb945e70167947d36b8692 Author: Mark Johnston AuthorDate: 2023-05-25 21:08:55 +0000 Commit: Mark Johnston CommitDate: 2023-05-25 22:09:55 +0000 posixshmcontrol.1: Document posixshmcontrol create -l Reviewed by: kib MFC after: 1 week Differential Revision: https://reviews.freebsd.org/D40270 --- usr.bin/posixshmcontrol/posixshmcontrol.1 | 23 ++++++++++++++++++++--- 1 file changed, 20 insertions(+), 3 deletions(-) diff --git a/usr.bin/posixshmcontrol/posixshmcontrol.1 b/usr.bin/posixshmcontrol/posixshmcontrol.1 index 1d8c3438b165..292768c39ce4 100644 --- a/usr.bin/posixshmcontrol/posixshmcontrol.1 +++ b/usr.bin/posixshmcontrol/posixshmcontrol.1 @@ -27,7 +27,7 @@ .\" .\" $FreeBSD$ .\" -.Dd February 26, 2022 +.Dd May 25, 2023 .Dt POSIXSHMCONTROL 1 .Os .Sh NAME @@ -36,6 +36,7 @@ .Sh SYNOPSIS .Nm .Ar create +.Op Fl l Ar pagesize .Op Fl m Ar mode .Op Pa path \&... .Nm @@ -79,10 +80,24 @@ for transient references. The following subcommands are provided: .Bl -tag -width truncate .It Ic create -Create segments with the specified paths, if not exist. +Create segments with the specified paths, if they do not already exist. +.Pp +The optional +.Ar pagesize +argument specifies the size of the virtual pages used to map the +object with +.Xr mmap 2 . +By default, the system page size is used, but on some platforms a +larger page size can be specified. +The size of an object backed by large pages must be a multiple of the +specified page size. The +.Va hw.pagesizes +sysctl variable lists the available page sizes. +.Pp +The optional numerical .Ar mode -optional numerical argument specifies initial access mode. +argument specifies the initial access mode. .It Ic rm Unlink the paths specified. .It Ic ls @@ -138,12 +153,14 @@ and then enlarge it to 1M, use the sequence of commands .Xr hexdump 1 , .Xr stat 1 , .Xr ftruncate 2 , +.Xr mmap 2 , .Xr read 2 , .Xr shm_open 2 , .Xr shm_unlink 2 , .Xr stat 2 , .Xr expand_number 3 , .Xr humanize_number 3 , +.Xr shm_create_largepage 3 , .Xr sysctl 3 .Sh HISTORY The