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| author | Dou Liyang <douly.fnst@cn.fujitsu.com> | 2017-03-03 16:02:23 +0800 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2017-03-11 14:41:18 +0100 |
| commit | c962cff17dfa11f4a8227ac16de2b28aea3312e4 (patch) | |
| tree | 8400e016a0a9eb1583a7986216d4422b0bcb2a92 /include | |
| parent | 434fd6353b4c83938029ca6ea7dfa4fc82d602bd (diff) | |
| download | lwn-c962cff17dfa11f4a8227ac16de2b28aea3312e4.tar.gz lwn-c962cff17dfa11f4a8227ac16de2b28aea3312e4.zip | |
Revert "x86/acpi: Set persistent cpuid <-> nodeid mapping when booting"
Revert: dc6db24d2476 ("x86/acpi: Set persistent cpuid <-> nodeid mapping when booting")
The mapping of "cpuid <-> nodeid" is established at boot time via ACPI
tables to keep associations of workqueues and other node related items
consistent across cpu hotplug.
But, ACPI tables are unreliable and failures with that boot time mapping
have been reported on machines where the ACPI table and the physical
information which is retrieved at actual hotplug is inconsistent.
Revert the mapping implementation so it can be replaced with a less error
prone approach.
Signed-off-by: Dou Liyang <douly.fnst@cn.fujitsu.com>
Tested-by: Xiaolong Ye <xiaolong.ye@intel.com>
Cc: rjw@rjwysocki.net
Cc: linux-acpi@vger.kernel.org
Cc: guzheng1@huawei.com
Cc: izumi.taku@jp.fujitsu.com
Cc: lenb@kernel.org
Link: http://lkml.kernel.org/r/1488528147-2279-2-git-send-email-douly.fnst@cn.fujitsu.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/acpi.h | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/include/linux/acpi.h b/include/linux/acpi.h index 673acda012af..63a7519b00cc 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -294,11 +294,8 @@ bool acpi_processor_validate_proc_id(int proc_id); int acpi_map_cpu(acpi_handle handle, phys_cpuid_t physid, u32 acpi_id, int *pcpu); int acpi_unmap_cpu(int cpu); -int acpi_map_cpu2node(acpi_handle handle, int cpu, int physid); #endif /* CONFIG_ACPI_HOTPLUG_CPU */ -void acpi_set_processor_mapping(void); - #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC int acpi_get_ioapic_id(acpi_handle handle, u32 gsi_base, u64 *phys_addr); #endif |