[PATCH v2 0/2] mm/ksm: fix some accounting problems
From: Chengming Zhou
Date: Sun May 12 2024 - 22:49:32 EST
Changes in v2:
- Add Fixes and Acked-by tags from David Hildenbrand, thanks!
- Inline atomic_long_read(&ksm_zero_pages), per David Hildenbrand.
- Don't include the last two optimization patches to keep this fix
simple.
- Link to v1: https://lore.kernel.org/r/20240508-b4-ksm-counters-v1-0-e2a9b13f70c5@xxxxxxxxx
We encounter some abnormal ksm_pages_scanned and ksm_zero_pages during
some random tests.
1. ksm_pages_scanned unchanged even ksmd scanning has progress.
2. ksm_zero_pages maybe -1 in some rare cases.
Thanks for review and comments!
Signed-off-by: Chengming Zhou <chengming.zhou@xxxxxxxxx>
---
Chengming Zhou (2):
mm/ksm: fix ksm_pages_scanned accounting
mm/ksm: fix ksm_zero_pages accounting
fs/proc/base.c | 2 +-
include/linux/ksm.h | 17 ++++++++++++++---
include/linux/mm_types.h | 2 +-
mm/ksm.c | 17 +++++++----------
4 files changed, 23 insertions(+), 15 deletions(-)
---
base-commit: fb0f40125feec3de7ef4524600ac83946207117e
change-id: 20240508-b4-ksm-counters-04817b40d3ee
Best regards,
--
Chengming Zhou <chengming.zhou@xxxxxxxxx>