> On May 12, 2026, at 14:52, Donet Tom <[email protected]> wrote:
>
> On 5/11/26 4:48 PM, Muchun Song wrote:
>
>> Rename the memory block lookup helper to make the acquired reference
>> explicit, add memory_block_put() to wrap put_device(), and collapse the
>> redundant section-number wrapper into a single block-id based lookup
>> interface.
>>
>> This makes it clearer to callers that a successful lookup holds a
>> reference that must be dropped, reducing the chance of forgetting the
>> matching put and leaking the memory block device reference.
>>
>> Link:
>> https://lore.kernel.org/linux-mm/[email protected]/#t
>> Signed-off-by: Muchun Song <[email protected]>
>> ---
>> .../platforms/pseries/hotplug-memory.c | 14 ++-----
>> drivers/base/memory.c | 38 +++++++------------
>> drivers/base/node.c | 4 +-
>> drivers/s390/char/sclp_mem.c | 17 ++++-----
>> include/linux/memory.h | 7 +++-
>> mm/memory_hotplug.c | 5 +--
>> 6 files changed, 35 insertions(+), 50 deletions(-)
>
>
>
> Hi
>
> I did some basic DLPAR memory add/remove tests on PowerPC with this patch,
> and it is working fine.
>
> Initial memory
> ==============
> []# cat /proc/meminfo |grep -i MemTotal
> MemTotal: 205169920 kB
>
> After Add
> =========
> []# cat /proc/meminfo |grep -i MemTotal
> MemTotal: 247112960 kB
>
> After Remove
> ============
> []# cat /proc/meminfo |grep -i MemTotal
> MemTotal: 173729024 kB
> []#
>
> Tested-by: Donet Tom <[email protected]>
Really thanks for your testing.
Thanks,
Muchun.
