Date: Mon, 20 Apr 2026 17:42:50 +0000 From: Konstantin Belousov <kib@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Subject: git: 324b3c2892a5 - main - membarrier.2: document MEMBARRIER_CMD_GET_REGISTRATIONS Message-ID: <69e6659a.3efdb.24113945@gitrepo.freebsd.org>
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The branch main has been updated by kib: URL: https://cgit.FreeBSD.org/src/commit/?id=324b3c2892a53e5fd9b1d8795a31a59ee835c5de commit 324b3c2892a53e5fd9b1d8795a31a59ee835c5de Author: Konstantin Belousov <kib@FreeBSD.org> AuthorDate: 2026-04-18 18:47:02 +0000 Commit: Konstantin Belousov <kib@FreeBSD.org> CommitDate: 2026-04-20 17:42:28 +0000 membarrier.2: document MEMBARRIER_CMD_GET_REGISTRATIONS Reviewed by: markj, Ricardo Branco <rbranco@suse.com> Sponsored by: The FreeBSD Foundation MFC after: 1 week Differential revision: https://reviews.freebsd.org/D56507 --- lib/libsys/membarrier.2 | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/lib/libsys/membarrier.2 b/lib/libsys/membarrier.2 index 87db620975ef..1dce2c823022 100644 --- a/lib/libsys/membarrier.2 +++ b/lib/libsys/membarrier.2 @@ -83,6 +83,8 @@ CPU are fenced. Register the process to receive .Dv MEMBARRIER_CMD_PRIVATE_EXPEDITED_SYNC_CORE memory barriers. +.It Dv MEMBARRIER_CMD_GET_REGISTRATIONS +Return the bitmask of the currently registered receive barriers. .El .Pp The following @@ -106,6 +108,10 @@ If the is .Dv MEMBARRIER_CMD_QUERY a bitmask of supported commands is returned. +For the +.Dv MEMBARRIER_CMD_GET_REGISTRATIONS +command, a bitmask of the registrations for the current process +is returned. Otherwise, on success, .Nm returns 0.home | help
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