[Xen-changelog] [xen master] sched: don't disable interrupts all the time when dumping run-queues

[patchbot@xxxxxxx]

commit 6e0b445ee738cd829ed28c7532cded8afe25886d
Author:     Juergen Gross <jgross@xxxxxxxx>
AuthorDate: Thu Feb 20 11:38:31 2020 +0100
Commit:     Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Thu Feb 20 11:38:31 2020 +0100

    sched: don't disable interrupts all the time when dumping run-queues
    
    Having interrupts disabled all the time when running dump_runq() is
    not necessary. All the called functions are doing proper locking
    and disable interrupts if needed.
    
    Signed-off-by: Juergen Gross <jgross@xxxxxxxx>
    Reviewed-by: Dario Faggioli <dfaggioli@xxxxxxxx>
---
 xen/common/sched/cpupool.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/xen/common/sched/cpupool.c b/xen/common/sched/cpupool.c
index 476916c6ea..b7721b5d02 100644
--- a/xen/common/sched/cpupool.c
+++ b/xen/common/sched/cpupool.c
@@ -889,12 +889,10 @@ const cpumask_t *cpupool_valid_cpus(const struct cpupool 
*pool)
 
 void dump_runq(unsigned char key)
 {
-    unsigned long    flags;
     s_time_t         now = NOW();
     struct cpupool **c;
 
     spin_lock(&cpupool_lock);
-    local_irq_save(flags);
 
     printk("sched_smt_power_savings: %s\n",
             sched_smt_power_savings? "enabled":"disabled");
@@ -914,7 +912,6 @@ void dump_runq(unsigned char key)
         schedule_dump(*c);
     }
 
-    local_irq_restore(flags);
     spin_unlock(&cpupool_lock);
 }
 
--
generated by git-patchbot for /home/xen/git/xen.git#master

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