From 61bc346ce64a3864ac55f5d18bdc1572cda4fb18 Mon Sep 17 00:00:00 2001 From: Eugene Syromiatnikov Date: Wed, 25 Aug 2021 19:06:13 +0200 Subject: uapi/linux/prctl: provide macro definitions for the PR_SCHED_CORE type argument Commit 7ac592aa35a684ff ("sched: prctl() core-scheduling interface") made use of enum pid_type in prctl's arg4; this type and the associated enumeration definitions are not exposed to userspace. Christian has suggested to provide additional macro definitions that convey the meaning of the type argument more in alignment with its actual usage, and this patch does exactly that. Link: https://lore.kernel.org/r/20210825170613.GA3884@asgard.redhat.com Suggested-by: Christian Brauner Acked-by: Christian Brauner Signed-off-by: Eugene Syromiatnikov Complements: 7ac592aa35a684ff ("sched: prctl() core-scheduling interface") Signed-off-by: Christian Brauner --- Documentation/admin-guide/hw-vuln/core-scheduling.rst | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'Documentation') diff --git a/Documentation/admin-guide/hw-vuln/core-scheduling.rst b/Documentation/admin-guide/hw-vuln/core-scheduling.rst index 0febe458597c..cf1eeefdfc32 100644 --- a/Documentation/admin-guide/hw-vuln/core-scheduling.rst +++ b/Documentation/admin-guide/hw-vuln/core-scheduling.rst @@ -61,8 +61,9 @@ arg3: ``pid`` of the task for which the operation applies. arg4: - ``pid_type`` for which the operation applies. It is of type ``enum pid_type``. - For example, if arg4 is ``PIDTYPE_TGID``, then the operation of this command + ``pid_type`` for which the operation applies. It is one of + ``PR_SCHED_CORE_SCOPE_``-prefixed macro constants. For example, if arg4 + is ``PR_SCHED_CORE_SCOPE_THREAD_GROUP``, then the operation of this command will be performed for all tasks in the task group of ``pid``. arg5: -- cgit v1.2.3-58-ga151