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[v3,05/11] xen: sched: improve credit2 bootparams' scope, placement and signedness

Message ID 20160408012355.10762.18416.stgit@Solace.fritz.box (mailing list archive)
State New, archived
Headers show

Commit Message

Dario Faggioli April 8, 2016, 1:23 a.m. UTC 
From: Uma Sharma <uma.sharma523@gmail.com>

and, while we are adjusting signedness of opt_load_window_shift,
make also prv->load_window_shift unsigned, as approapriate.

Signed-off-by: Uma Sharma <uma.sharma523@gmail.com>
Signed-off-by: Dario Faggioli <dario.faggioli@citrix.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Acked-by: George Dunlap <george.dunlap@citrix.com>
---
Cc: Jan Beulich <JBeulich@suse.com>
---
 xen/common/sched_credit2.c |   10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)
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Patch

diff --git a/xen/common/sched_credit2.c b/xen/common/sched_credit2.c
index 60c6f5b..7286e50 100644
--- a/xen/common/sched_credit2.c
+++ b/xen/common/sched_credit2.c
@@ -162,7 +162,7 @@ 
 #define CSFLAG_runq_migrate_request (1<<__CSFLAG_runq_migrate_request)
 
 
-int opt_migrate_resist=500;
+static unsigned int __read_mostly opt_migrate_resist = 500;
 integer_param("sched_credit2_migrate_resist", opt_migrate_resist);
 
 /*
@@ -185,12 +185,12 @@  integer_param("sched_credit2_migrate_resist", opt_migrate_resist);
  *   to a load of 1.
  */
 #define LOADAVG_GRANULARITY_SHIFT (10)
-int opt_load_window_shift=18;
+static unsigned int __read_mostly opt_load_window_shift = 18;
 #define  LOADAVG_WINDOW_SHIFT_MIN 4
 integer_param("credit2_load_window_shift", opt_load_window_shift);
-int opt_underload_balance_tolerance=0;
+static int __read_mostly opt_underload_balance_tolerance = 0;
 integer_param("credit2_balance_under", opt_underload_balance_tolerance);
-int opt_overload_balance_tolerance=-3;
+static int __read_mostly opt_overload_balance_tolerance = -3;
 integer_param("credit2_balance_over", opt_overload_balance_tolerance);
 
 /*
@@ -227,7 +227,7 @@  struct csched2_private {
     cpumask_t active_queues; /* Queues which may have active cpus */
     struct csched2_runqueue_data rqd[NR_CPUS];
 
-    int load_window_shift;
+    unsigned int load_window_shift;
 };
 
 /*