From: SJ Park <sj@kernel.org>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: SJ Park <sj@kernel.org>,
stable@vger.kernel.org, Usama Arif <usamaarif642@gmail.com>,
Yueyang Pan <pyyjason@gmail.com>,
damon@lists.linux.dev, linux-kernel@vger.kernel.org,
linux-mm@kvack.org
Subject: [PATCH 0/7] damos_apply_scheme() splits a region and apply the action to the
Date: Tue, 1 Sep 2026 06:13:17 -0700 [thread overview]
Message-ID: <20260901131326.97615-1-sj@kernel.org> (raw)
The user impact is not critical. The failure of damon_split_region_at()
is unlikely since it is arguably too small to fail. Also DAMOS being
aggressive is limited to the single region. Users can set
min_nr_regions to set the maximum size of each region. If it is
reasonably set, the transient overhead shouldn't be critical.
The issue was discovered [1] by Sashiko.
[1] https://lore.kernel.org/20260718171523.87547-1-sj@kernel.org
SJ Park (7):
mm/damon/paddr: respect folio end for DAMOS_STAT
mm/damon/paddr: respect folio end for DAMOS actions except STAT
mm/damon/vaddr: respect folio end for DAMOS_STAT
mm/damon/vaddr: respect folio end for DAMOS_MIGRATE_{HOT,COLD}
mm/damon/core: handle extreme memory state in damon_get_node_mem_bp()
mm/damon/core: handle extreme memory state in get_node_memcg_used_bp()
mm/damon/core: handle extreme memory state in get_in_active_mem_bp()
mm/damon/core.c | 15 ++++++++++++++-
mm/damon/paddr.c | 8 ++++----
mm/damon/vaddr.c | 10 ++++++++--
3 files changed, 26 insertions(+), 7 deletions(-)
base-commit: d93d8b0181065f8375af61e3a18bbc7c066a8159
--
2.47.3
next reply other threads:[~2026-09-01 13:13 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-01 13:13 SJ Park [this message]
2026-09-01 13:13 ` [PATCH 1/7] mm/damon/paddr: respect folio end for DAMOS_STAT SJ Park
2026-09-01 13:23 ` sashiko-bot
2026-09-01 13:13 ` [PATCH 2/7] mm/damon/paddr: respect folio end for DAMOS actions except STAT SJ Park
2026-09-01 13:22 ` sashiko-bot
2026-09-01 13:13 ` [PATCH 3/7] mm/damon/vaddr: respect folio end for DAMOS_STAT SJ Park
2026-09-01 13:33 ` sashiko-bot
2026-09-01 13:13 ` [PATCH 4/7] mm/damon/vaddr: respect folio end for DAMOS_MIGRATE_{HOT,COLD} SJ Park
2026-09-01 13:32 ` sashiko-bot
2026-09-01 13:13 ` [PATCH 5/7] mm/damon/core: handle extreme memory state in damon_get_node_mem_bp() SJ Park
2026-09-01 13:41 ` sashiko-bot
2026-09-01 13:13 ` [PATCH 6/7] mm/damon/core: handle extreme memory state in get_node_memcg_used_bp() SJ Park
2026-09-01 13:46 ` sashiko-bot
2026-09-01 13:13 ` [PATCH 7/7] mm/damon/core: handle extreme memory state in get_in_active_mem_bp() SJ Park
2026-09-01 13:56 ` sashiko-bot
2026-09-01 13:16 ` [PATCH 0/7] damos_apply_scheme() splits a region and apply the action to the SJ Park
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20260901131326.97615-1-sj@kernel.org \
--to=sj@kernel.org \
--cc=akpm@linux-foundation.org \
--cc=damon@lists.linux.dev \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=pyyjason@gmail.com \
--cc=stable@vger.kernel.org \
--cc=usamaarif642@gmail.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox