mm: memory-failure: bump memory failure stats to pglist_data
authorJiaqi Yan <jiaqiyan@google.com>
Fri, 20 Jan 2023 03:46:21 +0000 (03:46 +0000)
committerAndrew Morton <akpm@linux-foundation.org>
Fri, 3 Feb 2023 06:33:28 +0000 (22:33 -0800)
commit18f41fa616ee4d66c67033eb46b951bf6e1b4a12
tree06dc0ef2810e6523ccadc9dc0c6548892f2339a8
parent44b8f8bf2438bfee3aceae4d647a7460213ff340
mm: memory-failure: bump memory failure stats to pglist_data

Right before memory_failure finishes its handling, accumulate poisoned
page's resolution counters to pglist_data's memory_failure_stats, so as to
update the corresponding sysfs entries.

Tested:
1) Start an application to allocate memory buffer chunks
2) Convert random memory buffer addresses to physical addresses
3) Inject memory errors using EINJ at chosen physical addresses
4) Access poisoned memory buffer and recover from SIGBUS
5) Check counter values under
   /sys/devices/system/node/node*/memory_failure/*

Link: https://lkml.kernel.org/r/20230120034622.2698268-3-jiaqiyan@google.com
Signed-off-by: Jiaqi Yan <jiaqiyan@google.com>
Acked-by: David Rientjes <rientjes@google.com>
Acked-by: Naoya Horiguchi <naoya.horiguchi@nec.com>
Cc: Kefeng Wang <wangkefeng.wang@huawei.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Yang Shi <shy828301@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
mm/memory-failure.c