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| author |   Tang Chen <tangchen@cn.fujitsu.com> | 2013-02-22 16:33:14 -0800 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2013-02-23 17:50:13 -0800 |
| commit | 60a5a19e7419ba0bc22ed01b3285e8940b42944c (patch) | |
| tree | ab50aec968bd3386c53c8611f9e0215910daa6bd /drivers | |
| parent | memory_hotplug: clear zone when removing the memory (diff) | |
| download | linux-dev-60a5a19e7419ba0bc22ed01b3285e8940b42944c.tar.xz linux-dev-60a5a19e7419ba0bc22ed01b3285e8940b42944c.zip | |
memory-hotplug: remove sysfs file of node
Introduce a new function try_offline_node() to remove sysfs file of node
when all memory sections of this node are removed. If some memory
sections of this node are not removed, this function does nothing.
Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: Tang Chen <tangchen@cn.fujitsu.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Jiang Liu <jiang.liu@huawei.com>
Cc: Jianguo Wu <wujianguo@huawei.com>
Cc: Kamezawa Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Lai Jiangshan <laijs@cn.fujitsu.com>
Cc: Wu Jianguo <wujianguo@huawei.com>
Cc: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/acpi/acpi_memhotplug.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/acpi/acpi_memhotplug.c b/drivers/acpi/acpi_memhotplug.c index 034d3e72aa92..da1f82b445e0 100644 --- a/drivers/acpi/acpi_memhotplug.c +++ b/drivers/acpi/acpi_memhotplug.c @@ -280,9 +280,11 @@ static int acpi_memory_enable_device(struct acpi_memory_device *mem_device) static int acpi_memory_remove_memory(struct acpi_memory_device *mem_device) { - int result = 0; + int result = 0, nid; struct acpi_memory_info *info, *n; + nid = acpi_get_node(mem_device->device->handle); + list_for_each_entry_safe(info, n, &mem_device->res_list, list) { if (info->failed) /* The kernel does not use this memory block */ @@ -295,7 +297,9 @@ static int acpi_memory_remove_memory(struct acpi_memory_device *mem_device) */ return -EBUSY; - result = remove_memory(info->start_addr, info->length); + if (nid < 0) + nid = memory_add_physaddr_to_nid(info->start_addr); + result = remove_memory(nid, info->start_addr, info->length); if (result) return result; |