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Re: [PATCH 3/5] xen/sched: retrieve scheduler id by name
- To: Luca Fancellu <luca.fancellu@xxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxx
- From: Juergen Gross <jgross@xxxxxxxx>
- Date: Tue, 15 Feb 2022 11:40:57 +0100
- Cc: wei.chen@xxxxxxx, George Dunlap <george.dunlap@xxxxxxxxxx>, Dario Faggioli <dfaggioli@xxxxxxxx>, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Jan Beulich <jbeulich@xxxxxxxx>, Julien Grall <julien@xxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Wei Liu <wl@xxxxxxx>
- Delivery-date: Tue, 15 Feb 2022 10:41:05 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 15.02.22 11:15, Luca Fancellu wrote:
Add a public function to retrieve the scheduler id by the scheduler
name.
Signed-off-by: Luca Fancellu <luca.fancellu@xxxxxxx>
---
xen/common/sched/core.c | 11 +++++++++++
xen/include/xen/sched.h | 11 +++++++++++
2 files changed, 22 insertions(+)
diff --git a/xen/common/sched/core.c b/xen/common/sched/core.c
index 8f4b1ca10d1c..9696d3c1d769 100644
--- a/xen/common/sched/core.c
+++ b/xen/common/sched/core.c
@@ -2947,6 +2947,17 @@ void scheduler_enable(void)
scheduler_active = true;
}
+int __init sched_get_id_by_name(const char *sched_name)
+{
+ unsigned int i;
+
+ for ( i = 0; i < NUM_SCHEDULERS; i++ )
+ if ( schedulers[i] && !strcmp(schedulers[i]->opt_name, sched_name) )
+ return schedulers[i]->sched_id;
+
+ return -1;
+}
+
Please make use of this function in scheduler_init(), as this
functionality is open coded there, too.
Juergen
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