lkml.org 
[lkml]   [2024]   [Jan]   [28]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Subject[PATCH v2 0/3] mm/zswap: fix race between lru writeback and swapoff
From
Date
This is based on mm-unstable and the "mm: zswap: fix missing folio cleanup
in writeback race path" patch [1].

Changes in v2:
- Append a patch to remove list_lru_putback() since its only user
in zswap has gone, per Nhat.
- Improve the commit messages per Johannes.
- Add comments about the lru rotate in shrink_memcg_cb() per Johannes.
- Collect tags.
- Link to v1: https://lore.kernel.org/all/20240126083015.3557006-1-chengming.zhou@linux.dev/

This series mainly fix the race problem between lru writeback and swapoff,
which is spotted by Yosry [2]. Please see the commits for details.

Thanks for review and comments!

[1] https://lore.kernel.org/all/20240125085127.1327013-1-yosryahmed@google.com/
[2] https://lore.kernel.org/all/CAJD7tkasHsRnT_75-TXsEe58V9_OW6m3g6CF7Kmsvz8CKRG_EA@mail.gmail.com/

Signed-off-by: Chengming Zhou <zhouchengming@bytedance.com>
---
Chengming Zhou (3):
mm/zswap: don't return LRU_SKIP if we have dropped lru lock
mm/zswap: fix race between lru writeback and swapoff
mm/list_lru: remove list_lru_putback()

include/linux/list_lru.h | 16 -------
mm/list_lru.c | 14 ------
mm/zswap.c | 120 ++++++++++++++++++++---------------------------
3 files changed, 51 insertions(+), 99 deletions(-)
---
base-commit: 13d63cb513841433b69564b07614169e61113720
change-id: 20240126-zswap-writeback-race-2773be0a3ad4

Best regards,
--
Chengming Zhou <zhouchengming@bytedance.com>

\
 
 \ /
  Last update: 2024-05-27 14:37    [W:0.084 / U:0.080 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site