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[Xen-devel] [PATCH 1/9] xen/sched: move schedulers and cpupool coding to dedicated directory



Move sched*c and cpupool.c to a new directory common/sched.

Signed-off-by: Juergen Gross <jgross@xxxxxxxx>
---
 MAINTAINERS                                        |  8 +--
 xen/common/Kconfig                                 | 66 +---------------------
 xen/common/Makefile                                |  8 +--
 xen/common/sched/Kconfig                           | 65 +++++++++++++++++++++
 xen/common/sched/Makefile                          |  7 +++
 .../{compat/schedule.c => sched/compat_schedule.c} |  2 +-
 xen/common/{ => sched}/cpupool.c                   |  0
 xen/common/{ => sched}/sched_arinc653.c            |  0
 xen/common/{ => sched}/sched_credit.c              |  0
 xen/common/{ => sched}/sched_credit2.c             |  0
 xen/common/{ => sched}/sched_null.c                |  0
 xen/common/{ => sched}/sched_rt.c                  |  0
 xen/common/{ => sched}/schedule.c                  |  2 +-
 13 files changed, 80 insertions(+), 78 deletions(-)
 create mode 100644 xen/common/sched/Kconfig
 create mode 100644 xen/common/sched/Makefile
 rename xen/common/{compat/schedule.c => sched/compat_schedule.c} (97%)
 rename xen/common/{ => sched}/cpupool.c (100%)
 rename xen/common/{ => sched}/sched_arinc653.c (100%)
 rename xen/common/{ => sched}/sched_credit.c (100%)
 rename xen/common/{ => sched}/sched_credit2.c (100%)
 rename xen/common/{ => sched}/sched_null.c (100%)
 rename xen/common/{ => sched}/sched_rt.c (100%)
 rename xen/common/{ => sched}/schedule.c (99%)

diff --git a/MAINTAINERS b/MAINTAINERS
index 012c847ebd..37d4da2bc2 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -174,7 +174,7 @@ M:  Josh Whitehead <josh.whitehead@xxxxxxxxxxxxxxx>
 M:     Stewart Hildebrand <stewart.hildebrand@xxxxxxxxxxxxxxx>
 S:     Supported
 L:     DornerWorks Xen-Devel <xen-devel@xxxxxxxxxxxxxxx>
-F:     xen/common/sched_arinc653.c
+F:     xen/common/sched/sched_arinc653.c
 F:     tools/libxc/xc_arinc653.c
 
 ARM (W/ VIRTUALISATION EXTENSIONS) ARCHITECTURE
@@ -212,7 +212,7 @@ CPU POOLS
 M:     Juergen Gross <jgross@xxxxxxxx>
 M:     Dario Faggioli <dfaggioli@xxxxxxxx>
 S:     Supported
-F:     xen/common/cpupool.c
+F:     xen/common/sched/cpupool.c
 
 DEVICE TREE
 M:     Stefano Stabellini <sstabellini@xxxxxxxxxx>
@@ -378,13 +378,13 @@ RTDS SCHEDULER
 M:     Dario Faggioli <dfaggioli@xxxxxxxx>
 M:     Meng Xu <mengxu@xxxxxxxxxxxxx>
 S:     Supported
-F:     xen/common/sched_rt.c
+F:     xen/common/sched/sched_rt.c
 
 SCHEDULING
 M:     George Dunlap <george.dunlap@xxxxxxxxxxxxx>
 M:     Dario Faggioli <dfaggioli@xxxxxxxx>
 S:     Supported
-F:     xen/common/sched*
+F:     xen/common/sched/
 
 SEABIOS UPSTREAM
 M:     Wei Liu <wl@xxxxxxx>
diff --git a/xen/common/Kconfig b/xen/common/Kconfig
index 2f516da101..79465fc1f9 100644
--- a/xen/common/Kconfig
+++ b/xen/common/Kconfig
@@ -278,71 +278,7 @@ config ARGO
 
          If unsure, say N.
 
-menu "Schedulers"
-       visible if EXPERT = "y"
-
-config SCHED_CREDIT
-       bool "Credit scheduler support"
-       default y
-       ---help---
-         The traditional credit scheduler is a general purpose scheduler.
-
-config SCHED_CREDIT2
-       bool "Credit2 scheduler support"
-       default y
-       ---help---
-         The credit2 scheduler is a general purpose scheduler that is
-         optimized for lower latency and higher VM density.
-
-config SCHED_RTDS
-       bool "RTDS scheduler support (EXPERIMENTAL)"
-       default y
-       ---help---
-         The RTDS scheduler is a soft and firm real-time scheduler for
-         multicore, targeted for embedded, automotive, graphics and gaming
-         in the cloud, and general low-latency workloads.
-
-config SCHED_ARINC653
-       bool "ARINC653 scheduler support (EXPERIMENTAL)"
-       default DEBUG
-       ---help---
-         The ARINC653 scheduler is a hard real-time scheduler for single
-         cores, targeted for avionics, drones, and medical devices.
-
-config SCHED_NULL
-       bool "Null scheduler support (EXPERIMENTAL)"
-       default y
-       ---help---
-         The null scheduler is a static, zero overhead scheduler,
-         for when there always are less vCPUs than pCPUs, typically
-         in embedded or HPC scenarios.
-
-choice
-       prompt "Default Scheduler?"
-       default SCHED_CREDIT2_DEFAULT
-
-       config SCHED_CREDIT_DEFAULT
-               bool "Credit Scheduler" if SCHED_CREDIT
-       config SCHED_CREDIT2_DEFAULT
-               bool "Credit2 Scheduler" if SCHED_CREDIT2
-       config SCHED_RTDS_DEFAULT
-               bool "RT Scheduler" if SCHED_RTDS
-       config SCHED_ARINC653_DEFAULT
-               bool "ARINC653 Scheduler" if SCHED_ARINC653
-       config SCHED_NULL_DEFAULT
-               bool "Null Scheduler" if SCHED_NULL
-endchoice
-
-config SCHED_DEFAULT
-       string
-       default "credit" if SCHED_CREDIT_DEFAULT
-       default "credit2" if SCHED_CREDIT2_DEFAULT
-       default "rtds" if SCHED_RTDS_DEFAULT
-       default "arinc653" if SCHED_ARINC653_DEFAULT
-       default "null" if SCHED_NULL_DEFAULT
-       default "credit2"
-
-endmenu
+source "common/sched/Kconfig"
 
 config CRYPTO
        bool
diff --git a/xen/common/Makefile b/xen/common/Makefile
index 62b34e69e9..2abb8250b0 100644
--- a/xen/common/Makefile
+++ b/xen/common/Makefile
@@ -3,7 +3,6 @@ obj-y += bitmap.o
 obj-y += bsearch.o
 obj-$(CONFIG_CORE_PARKING) += core_parking.o
 obj-y += cpu.o
-obj-y += cpupool.o
 obj-$(CONFIG_DEBUG_TRACE) += debugtrace.o
 obj-$(CONFIG_HAS_DEVICE_TREE) += device_tree.o
 obj-y += domctl.o
@@ -38,12 +37,6 @@ obj-y += radix-tree.o
 obj-y += rbtree.o
 obj-y += rcupdate.o
 obj-y += rwlock.o
-obj-$(CONFIG_SCHED_ARINC653) += sched_arinc653.o
-obj-$(CONFIG_SCHED_CREDIT) += sched_credit.o
-obj-$(CONFIG_SCHED_CREDIT2) += sched_credit2.o
-obj-$(CONFIG_SCHED_RTDS) += sched_rt.o
-obj-$(CONFIG_SCHED_NULL) += sched_null.o
-obj-y += schedule.o
 obj-y += shutdown.o
 obj-y += softirq.o
 obj-y += sort.o
@@ -74,6 +67,7 @@ obj-$(CONFIG_COMPAT) += $(addprefix compat/,domain.o kernel.o 
memory.o multicall
 extra-y := symbols-dummy.o
 
 subdir-$(CONFIG_COVERAGE) += coverage
+subdir-y += sched
 subdir-$(CONFIG_UBSAN) += ubsan
 
 subdir-$(CONFIG_NEEDS_LIBELF) += libelf
diff --git a/xen/common/sched/Kconfig b/xen/common/sched/Kconfig
new file mode 100644
index 0000000000..883ac87cab
--- /dev/null
+++ b/xen/common/sched/Kconfig
@@ -0,0 +1,65 @@
+menu "Schedulers"
+       visible if EXPERT = "y"
+
+config SCHED_CREDIT
+       bool "Credit scheduler support"
+       default y
+       ---help---
+         The traditional credit scheduler is a general purpose scheduler.
+
+config SCHED_CREDIT2
+       bool "Credit2 scheduler support"
+       default y
+       ---help---
+         The credit2 scheduler is a general purpose scheduler that is
+         optimized for lower latency and higher VM density.
+
+config SCHED_RTDS
+       bool "RTDS scheduler support (EXPERIMENTAL)"
+       default y
+       ---help---
+         The RTDS scheduler is a soft and firm real-time scheduler for
+         multicore, targeted for embedded, automotive, graphics and gaming
+         in the cloud, and general low-latency workloads.
+
+config SCHED_ARINC653
+       bool "ARINC653 scheduler support (EXPERIMENTAL)"
+       default DEBUG
+       ---help---
+         The ARINC653 scheduler is a hard real-time scheduler for single
+         cores, targeted for avionics, drones, and medical devices.
+
+config SCHED_NULL
+       bool "Null scheduler support (EXPERIMENTAL)"
+       default y
+       ---help---
+         The null scheduler is a static, zero overhead scheduler,
+         for when there always are less vCPUs than pCPUs, typically
+         in embedded or HPC scenarios.
+
+choice
+       prompt "Default Scheduler?"
+       default SCHED_CREDIT2_DEFAULT
+
+       config SCHED_CREDIT_DEFAULT
+               bool "Credit Scheduler" if SCHED_CREDIT
+       config SCHED_CREDIT2_DEFAULT
+               bool "Credit2 Scheduler" if SCHED_CREDIT2
+       config SCHED_RTDS_DEFAULT
+               bool "RT Scheduler" if SCHED_RTDS
+       config SCHED_ARINC653_DEFAULT
+               bool "ARINC653 Scheduler" if SCHED_ARINC653
+       config SCHED_NULL_DEFAULT
+               bool "Null Scheduler" if SCHED_NULL
+endchoice
+
+config SCHED_DEFAULT
+       string
+       default "credit" if SCHED_CREDIT_DEFAULT
+       default "credit2" if SCHED_CREDIT2_DEFAULT
+       default "rtds" if SCHED_RTDS_DEFAULT
+       default "arinc653" if SCHED_ARINC653_DEFAULT
+       default "null" if SCHED_NULL_DEFAULT
+       default "credit2"
+
+endmenu
diff --git a/xen/common/sched/Makefile b/xen/common/sched/Makefile
new file mode 100644
index 0000000000..359af4f8bb
--- /dev/null
+++ b/xen/common/sched/Makefile
@@ -0,0 +1,7 @@
+obj-y += cpupool.o
+obj-$(CONFIG_SCHED_ARINC653) += sched_arinc653.o
+obj-$(CONFIG_SCHED_CREDIT) += sched_credit.o
+obj-$(CONFIG_SCHED_CREDIT2) += sched_credit2.o
+obj-$(CONFIG_SCHED_RTDS) += sched_rt.o
+obj-$(CONFIG_SCHED_NULL) += sched_null.o
+obj-y += schedule.o
diff --git a/xen/common/compat/schedule.c b/xen/common/sched/compat_schedule.c
similarity index 97%
rename from xen/common/compat/schedule.c
rename to xen/common/sched/compat_schedule.c
index 8b6e6f107d..2e450685d6 100644
--- a/xen/common/compat/schedule.c
+++ b/xen/common/sched/compat_schedule.c
@@ -37,7 +37,7 @@ static int compat_poll(struct compat_sched_poll *compat)
 #define do_poll compat_poll
 #define sched_poll compat_sched_poll
 
-#include "../schedule.c"
+#include "schedule.c"
 
 int compat_set_timer_op(u32 lo, s32 hi)
 {
diff --git a/xen/common/cpupool.c b/xen/common/sched/cpupool.c
similarity index 100%
rename from xen/common/cpupool.c
rename to xen/common/sched/cpupool.c
diff --git a/xen/common/sched_arinc653.c b/xen/common/sched/sched_arinc653.c
similarity index 100%
rename from xen/common/sched_arinc653.c
rename to xen/common/sched/sched_arinc653.c
diff --git a/xen/common/sched_credit.c b/xen/common/sched/sched_credit.c
similarity index 100%
rename from xen/common/sched_credit.c
rename to xen/common/sched/sched_credit.c
diff --git a/xen/common/sched_credit2.c b/xen/common/sched/sched_credit2.c
similarity index 100%
rename from xen/common/sched_credit2.c
rename to xen/common/sched/sched_credit2.c
diff --git a/xen/common/sched_null.c b/xen/common/sched/sched_null.c
similarity index 100%
rename from xen/common/sched_null.c
rename to xen/common/sched/sched_null.c
diff --git a/xen/common/sched_rt.c b/xen/common/sched/sched_rt.c
similarity index 100%
rename from xen/common/sched_rt.c
rename to xen/common/sched/sched_rt.c
diff --git a/xen/common/schedule.c b/xen/common/sched/schedule.c
similarity index 99%
rename from xen/common/schedule.c
rename to xen/common/sched/schedule.c
index e70cc70a65..a550dd8f93 100644
--- a/xen/common/schedule.c
+++ b/xen/common/sched/schedule.c
@@ -3125,7 +3125,7 @@ void __init sched_setup_dom0_vcpus(struct domain *d)
 #endif
 
 #ifdef CONFIG_COMPAT
-#include "compat/schedule.c"
+#include "compat_schedule.c"
 #endif
 
 #endif /* !COMPAT */
-- 
2.16.4


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