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| author | Konstantin Belousov <kib@FreeBSD.org> | 2026-04-18 18:47:02 +0000 |
|---|---|---|
| committer | Konstantin Belousov <kib@FreeBSD.org> | 2026-04-20 17:42:28 +0000 |
| commit | 324b3c2892a53e5fd9b1d8795a31a59ee835c5de (patch) | |
| tree | 1aeb1ffc8c701ec2d3ad5aae1cb487f4e26c2354 | |
| parent | aaa10396a997bafc28ce6551e92563620caf3df4 (diff) | |
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
| -rw-r--r-- | lib/libsys/membarrier.2 | 6 |
1 files changed, 6 insertions, 0 deletions
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. |