Wang ShaoBo 4cc4cc28ec arch_topology: Fix missing clear cluster_cpumask in remove_cpu_topology() ... When testing cpu online and offline, warning happened like this: [ 146.746743] WARNING: CPU: 92 PID: 974 at kernel/sched/topology.c:2215 build_sched_domains+0x81c/0x11b0 [ 146.749988] CPU: 92 PID: 974 Comm: kworker/92:2 Not tainted 5.15.0 #9 [ 146.750402] Hardware name: Huawei TaiShan 2280 V2/BC82AMDDA, BIOS 1.79 08/21/2021 [ 146.751213] Workqueue: events cpuset_hotplug_workfn [ 146.751629] pstate: 00400009 (nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 146.752048] pc : build_sched_domains+0x81c/0x11b0 [ 146.752461] lr : build_sched_domains+0x414/0x11b0 [ 146.752860] sp : ffff800040a83a80 [ 146.753247] x29: ffff800040a83a80 x28: ffff20801f13a980 x27: ffff20800448ae00 [ 146.753644] x26: ffff800012a858e8 x25: ffff800012ea48c0 x24: 0000000000000000 [ 146.754039] x23: ffff800010ab7d60 x22: ffff800012f03758 x21: 000000000000005f [ 146.754427] x20: 000000000000005c x19: ffff004080012840 x18: ffffffffffffffff [ 146.754814] x17: 3661613030303230 x16: 30303078303a3239 x15: ffff800011f92b48 [ 146.755197] x14: ffff20be3f95cef6 x13: 2e6e69616d6f642d x12: 6465686373204c4c [ 146.755578] x11: ffff20bf7fc83a00 x10: 0000000000000040 x9 : 0000000000000000 [ 146.755957] x8 : 0000000000000002 x7 : ffffffffe0000000 x6 : 0000000000000002 [ 146.756334] x5 : 0000000090000000 x4 : 00000000f0000000 x3 : 0000000000000001 [ 146.756705] x2 : 0000000000000080 x1 : ffff800012f03860 x0 : 0000000000000001 [ 146.757070] Call trace: [ 146.757421] build_sched_domains+0x81c/0x11b0 [ 146.757771] partition_sched_domains_locked+0x57c/0x978 [ 146.758118] rebuild_sched_domains_locked+0x44c/0x7f0 [ 146.758460] rebuild_sched_domains+0x2c/0x48 [ 146.758791] cpuset_hotplug_workfn+0x3fc/0x888 [ 146.759114] process_one_work+0x1f4/0x480 [ 146.759429] worker_thread+0x48/0x460 [ 146.759734] kthread+0x158/0x168 [ 146.760030] ret_from_fork+0x10/0x20 [ 146.760318] ---[ end trace 82c44aad6900e81a ]--- For some architectures like risc-v and arm64 which use common code clear_cpu_topology() in shutting down CPUx, When CONFIG_SCHED_CLUSTER is set, cluster_sibling in cpu_topology of each sibling adjacent to CPUx is missed clearing, this causes checking failed in topology_span_sane() and rebuilding topology failure at end when CPU online. Different sibling's cluster_sibling in cpu_topology[] when CPU92 offline (CPU 92, 93, 94, 95 are in one cluster): Before revision: CPU [92] [93] [94] [95] cluster_sibling [92] [92-95] [92-95] [92-95] After revision: CPU [92] [93] [94] [95] cluster_sibling [92] [93-95] [93-95] [93-95] Signed-off-by: Wang ShaoBo <bobo.shaobowang@huawei.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Dietmar Eggemann <dietmar.eggemann@arm.com> Acked-by: Barry Song <song.bao.hua@hisilicon.com> Tested-by: Dietmar Eggemann <dietmar.eggemann@arm.com> Link: https://lore.kernel.org/r/20211110095856.469360-1-bobo.shaobowang@huawei.com		2021-11-11 13:09:33 +01:00
..
firmware_loader	firmware_loader: move struct builtin_fw to the only place used	2021-10-22 14:13:53 +02:00
power	PM: sleep: Avoid calling put_device() under dpm_list_mtx	2021-11-05 16:10:11 +01:00
regmap	Core:	2021-11-02 06:20:58 -07:00
test	device property: build kunit tests without structleak plugin	2021-10-06 17:53:42 -06:00
arch_numa.c	memblock: use memblock_free for freeing virtual pointers	2021-11-06 13:30:41 -07:00
arch_topology.c	arch_topology: Fix missing clear cluster_cpumask in remove_cpu_topology()	2021-11-11 13:09:33 +01:00
attribute_container.c	driver core: attribute_container: fix W=1 warnings	2021-05-14 13:37:10 +02:00
auxiliary.c	Merge 5.14-rc3 into driver-core-next	2021-07-27 09:22:08 +02:00
base.h	software nodes: Split software_node_notify()	2021-07-16 19:17:05 +02:00
bus.c	driver: base: Replace symbolic permissions with octal permissions	2021-07-21 14:56:00 +02:00
cacheinfo.c	cacheinfo: clear cache_leaves(cpu) in free_cache_attributes()	2021-07-21 17:29:40 +02:00
class.c	drivers: base: fix some kernel-doc markups	2020-11-09 18:56:49 +01:00
component.c	component: do not leave master devres group open after bind	2021-10-21 13:01:56 +02:00
container.c
core.c	driver core: Provide device_match_acpi_handle() helper	2021-10-20 19:38:29 +02:00
cpu.c	driver: base: Prefer unsigned int to bare use of unsigned	2021-07-21 17:30:09 +02:00
dd.c	Merge 5.14-rc5 into driver-core-next	2021-08-09 09:03:47 +02:00
devcoredump.c	devcoredump: remove contact information	2021-06-04 15:05:44 +02:00
devres.c	devres: Enable trace events	2021-06-15 17:14:36 +02:00
devtmpfs.c	devtmpfs: actually reclaim some init memory	2021-03-23 14:57:35 +01:00
driver.c	drivers: base: Convert to printk alias functions	2020-07-10 14:16:44 +02:00
firmware.c
hypervisor.c
init.c	driver core: auxiliary bus: Fix calling stage for auxiliary bus init	2021-02-11 08:43:03 +01:00
isa.c	bus: Make remove callback return void	2021-07-21 11:53:42 +02:00
Kconfig	RISC-V Patches for the 5.12 Merge Window	2021-02-26 10:28:35 -08:00
Makefile	mm/memory_hotplug: remove CONFIG_MEMORY_HOTPLUG_SPARSE	2021-11-06 13:30:42 -07:00
map.c	driver: base: Prefer unsigned int to bare use of unsigned	2021-07-21 17:30:09 +02:00
memory.c	Merge branch 'akpm' (patches from Andrew)	2021-09-08 12:55:35 -07:00
module.c
node.c	mm/memory_hotplug: remove CONFIG_MEMORY_HOTPLUG_SPARSE	2021-11-06 13:30:42 -07:00
pinctrl.c
platform-msi.c	platform-msi: Add ABI to show msi_irqs of platform devices	2021-08-24 09:16:20 +02:00
platform.c	driver core: platform: Make use of the helper macro SET_RUNTIME_PM_OPS()	2021-09-14 16:52:41 +02:00
property.c	device property: move mac addr helpers to eth.c	2021-10-07 13:39:51 +01:00
soc.c	soc: fix comment for freeing soc_dev_attr	2020-12-09 19:46:31 +01:00
swnode.c	device property: Drop redundant NULL checks	2021-10-26 19:14:01 +02:00
syscore.c	syscore: Use pm_pr_dbg() for syscore_{suspend,resume}()	2020-09-08 13:32:06 +02:00
topology.c	topology: Represent clusters of CPUs within a die	2021-10-15 11:25:15 +02:00
trace.c	devres: Enable trace events	2021-06-15 17:14:36 +02:00
trace.h	devres: Enable trace events	2021-06-15 17:14:36 +02:00
transport_class.c	scsi: drivers: base: Propagate errors through the transport component	2020-01-15 22:55:37 -05:00