Hi Rafael,
2013/04/02 8:48, Rafael J. Wysocki wrote:
On Thursday, March 28, 2013 08:58:03 AM Yasuaki Ishimatsu wrote:
Hi Rafael,
2013/03/26 22:41, Rafael J. Wysocki wrote:
On Tuesday, March 26, 2013 08:57:05 AM Yasuaki Ishimatsu wrote:
2013/03/23 5:24, Toshi Kani wrote:
On Fri, 2013-03-22 at 10:53 +0900, Yasuaki Ishimatsu wrote:
acpi_memory_info has enabled bit and failed bit for controlling memory
hotplug. But we don't need to keep both bits.
The patch removes acpi_memory_info->failed bit.
Signed-off-by: yasuaki ishimatsu <isimatu.yasuaki@xxxxxxxxxxxxxx>
Thanks for the update. It looks good. For the series:
Acked-by: Toshi Kani <toshi.kani@xxxxxx>
Thanks!
Both patches applied to linux-pm.git/linux-next.
Thank you for applying both patches.
If you don't mind, I hope these patches are merged into linux-3.9
since this is bug fix.
I honestly don't think that [2/2] is 3.9 material, but I can push [1/2]
for 3.9 provided that you also regard it as material for 3.8-stable.
linux-3.8 does not support physical memory hot remove. It has been supported
since linux-3.9. So I don't need [1/2] patch to linux-3.8 but need it to
linux-3.9. So please push [1/2] patch to linux-3.9.
Thanks,
Yasuaki Ishimatsu
Thanks,
Rafael
---
v3 : Continue to memory hot remove when (!info->enabled) case.
v2 : Changed a based kernel from linux-3.9-rc2 to linux-pm.git/bleeding-edge.
---
drivers/acpi/acpi_memhotplug.c | 15 ++-------------
1 files changed, 2 insertions(+), 13 deletions(-)
diff --git a/drivers/acpi/acpi_memhotplug.c b/drivers/acpi/acpi_memhotplug.c
index ea78988..5e6301e 100644
--- a/drivers/acpi/acpi_memhotplug.c
+++ b/drivers/acpi/acpi_memhotplug.c
@@ -73,7 +73,6 @@ struct acpi_memory_info {
unsigned short caching; /* memory cache attribute */
unsigned short write_protect; /* memory read/write attribute */
unsigned int enabled:1;
- unsigned int failed:1;
};
struct acpi_memory_device {
@@ -201,10 +200,8 @@ static int acpi_memory_enable_device(struct acpi_memory_device *mem_device)
* returns -EEXIST. If add_memory() returns the other error, it
* means that this memory block is not used by the kernel.
*/
- if (result && result != -EEXIST) {
- info->failed = 1;
+ if (result && result != -EEXIST)
continue;
- }
info->enabled = 1;
@@ -238,16 +235,8 @@ static int acpi_memory_remove_memory(struct acpi_memory_device *mem_device)
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 */
- continue;
-
if (!info->enabled)
- /*
- * The kernel uses this memory block, but it may be not
- * managed by us.
- */
- return -EBUSY;
+ continue;
if (nid < 0)
nid = memory_add_physaddr_to_nid(info->start_addr);
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