[Xen-devel] [PATCH v3 4/7] xen: get rid of the SEDF scheduler

[Dario Faggioli <dario.faggioli@xxxxxxxxxx>]

more specifically, of all the symbols and references
to it.

Signed-off-by: Dario Faggioli <dario.faggioli@xxxxxxxxxx>
Reviewed-by: George Dunlap <george.dunlap@xxxxxxxxxxxxx>
Reviewed-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
---
Changes from v1:
 - added markers for removed #defines, to help keep bits
   of the history, and reduce the likelyhood of accidental
   reuse, as requested during review.
---
 docs/misc/xen-command-line.markdown |    2 +-
 xen/common/Makefile                 |    1 -
 xen/common/schedule.c               |    1 -
 xen/include/public/domctl.h         |    9 +--------
 xen/include/public/trace.h          |    2 +-
 xen/include/xen/sched-if.h          |    1 -
 6 files changed, 3 insertions(+), 13 deletions(-)

diff --git a/docs/misc/xen-command-line.markdown 
b/docs/misc/xen-command-line.markdown
index aa684c0..d292fae 100644
--- a/docs/misc/xen-command-line.markdown
+++ b/docs/misc/xen-command-line.markdown
@@ -1206,7 +1206,7 @@ Map the HPET page as read only in Dom0. If disabled the 
page will be mapped
 with read and write permissions.
 
 ### sched
-> `= credit | credit2 | sedf | arinc653`
+> `= credit | credit2 | arinc653`
 
 > Default: `sched=credit`
 
diff --git a/xen/common/Makefile b/xen/common/Makefile
index 1cddebc..3fdf931 100644
--- a/xen/common/Makefile
+++ b/xen/common/Makefile
@@ -31,7 +31,6 @@ obj-y += rbtree.o
 obj-y += rcupdate.o
 obj-y += sched_credit.o
 obj-y += sched_credit2.o
-obj-y += sched_sedf.o
 obj-y += sched_arinc653.o
 obj-y += sched_rt.o
 obj-y += schedule.o
diff --git a/xen/common/schedule.c b/xen/common/schedule.c
index ecf1545..0dc2788 100644
--- a/xen/common/schedule.c
+++ b/xen/common/schedule.c
@@ -65,7 +65,6 @@ DEFINE_PER_CPU(struct schedule_data, schedule_data);
 DEFINE_PER_CPU(struct scheduler *, scheduler);
 
 static const struct scheduler *schedulers[] = {
-    &sched_sedf_def,
     &sched_credit_def,
     &sched_credit2_def,
     &sched_arinc653_def,
diff --git a/xen/include/public/domctl.h b/xen/include/public/domctl.h
index bc45ea5..6d28489 100644
--- a/xen/include/public/domctl.h
+++ b/xen/include/public/domctl.h
@@ -324,7 +324,7 @@ DEFINE_XEN_GUEST_HANDLE(xen_domctl_max_vcpus_t);
 
 /* XEN_DOMCTL_scheduler_op */
 /* Scheduler types. */
-#define XEN_SCHEDULER_SEDF     4
+/* #define XEN_SCHEDULER_SEDF  4 (Removed) */
 #define XEN_SCHEDULER_CREDIT   5
 #define XEN_SCHEDULER_CREDIT2  6
 #define XEN_SCHEDULER_ARINC653 7
@@ -337,13 +337,6 @@ struct xen_domctl_scheduler_op {
     uint32_t sched_id;  /* XEN_SCHEDULER_* */
     uint32_t cmd;       /* XEN_DOMCTL_SCHEDOP_* */
     union {
-        struct xen_domctl_sched_sedf {
-            uint64_aligned_t period;
-            uint64_aligned_t slice;
-            uint64_aligned_t latency;
-            uint32_t extratime;
-            uint32_t weight;
-        } sedf;
         struct xen_domctl_sched_credit {
             uint16_t weight;
             uint16_t cap;
diff --git a/xen/include/public/trace.h b/xen/include/public/trace.h
index 5211ae7..274f8f6 100644
--- a/xen/include/public/trace.h
+++ b/xen/include/public/trace.h
@@ -75,7 +75,7 @@
 /* Per-scheduler IDs, to identify scheduler specific events */
 #define TRC_SCHED_CSCHED   0
 #define TRC_SCHED_CSCHED2  1
-#define TRC_SCHED_SEDF     2
+/* #define XEN_SCHEDULER_SEDF 2 (Removed) */
 #define TRC_SCHED_ARINC653 3
 #define TRC_SCHED_RTDS     4
 
diff --git a/xen/include/xen/sched-if.h b/xen/include/xen/sched-if.h
index 7cc25c6..dbe7cab 100644
--- a/xen/include/xen/sched-if.h
+++ b/xen/include/xen/sched-if.h
@@ -165,7 +165,6 @@ struct scheduler {
     void         (*tick_resume)     (const struct scheduler *, unsigned int);
 };
 
-extern const struct scheduler sched_sedf_def;
 extern const struct scheduler sched_credit_def;
 extern const struct scheduler sched_credit2_def;
 extern const struct scheduler sched_arinc653_def;


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