From: Andrew Morton <akpm@linux-foundation.org>
To: mm-commits@vger.kernel.org,sj@kernel.org,akpm@linux-foundation.org
Subject: + mm-damon-core-embed-damon_probe-objects-in-damon_ctx.patch added to mm-new branch
Date: Mon, 18 May 2026 17:55:08 -0700 [thread overview]
Message-ID: <20260519005509.01F12C2BCB7@smtp.kernel.org> (raw)
The patch titled
Subject: mm/damon/core: embed damon_probe objects in damon_ctx
has been added to the -mm mm-new branch. Its filename is
mm-damon-core-embed-damon_probe-objects-in-damon_ctx.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-damon-core-embed-damon_probe-objects-in-damon_ctx.patch
This patch will later appear in the mm-new branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Note, mm-new is a provisional staging ground for work-in-progress
patches, and acceptance into mm-new is a notification for others take
notice and to finish up reviews. Please do not hesitate to respond to
review feedback and post updated versions to replace or incrementally
fixup patches in mm-new.
The mm-new branch of mm.git is not included in linux-next
If a few days of testing in mm-new is successful, the patch will me moved
into mm.git's mm-unstable branch, which is included in linux-next
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next via various
branches at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
and is updated there most days
------------------------------------------------------
From: SeongJae Park <sj@kernel.org>
Subject: mm/damon/core: embed damon_probe objects in damon_ctx
Date: Mon, 18 May 2026 16:40:50 -0700
Let damon_probe objects be able to be installed on a given damon_ctx, by
adding a linked list header for storing the objects. Add initialization
and cleanup of the new field with helper functions, too.
Link: https://lore.kernel.org/20260518234119.97569-3-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: David Hildenbrand <david@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Liam R. Howlett <liam@infradead.org>
Cc: Lorenzo Stoakes <ljs@kernel.org>
Cc: "Masami Hiramatsu (Google)" <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
include/linux/damon.h | 9 +++++++++
mm/damon/core.c | 38 ++++++++++++++++++++++++++++++++++++++
2 files changed, 47 insertions(+)
--- a/include/linux/damon.h~mm-damon-core-embed-damon_probe-objects-in-damon_ctx
+++ a/include/linux/damon.h
@@ -857,6 +857,7 @@ struct damon_ctx {
/* public: */
struct damon_operations ops;
+ struct list_head probes;
unsigned long addr_unit;
unsigned long min_region_sz;
bool pause;
@@ -909,6 +910,11 @@ static inline unsigned long damon_sz_reg
return r->ar.end - r->ar.start;
}
+#define damon_for_each_probe(p, ctx) \
+ list_for_each_entry(p, &(ctx)->probes, list)
+
+#define damon_for_each_probe_safe(p, next, ctx) \
+ list_for_each_entry_safe(p, next, &(ctx)->probes, list)
#define damon_for_each_region(r, t) \
list_for_each_entry(r, &t->regions_list, list)
@@ -951,6 +957,9 @@ static inline unsigned long damon_sz_reg
#ifdef CONFIG_DAMON
+struct damon_probe *damon_new_probe(void);
+void damon_add_probe(struct damon_ctx *ctx, struct damon_probe *probe);
+
struct damon_region *damon_new_region(unsigned long start, unsigned long end);
/*
--- a/mm/damon/core.c~mm-damon-core-embed-damon_probe-objects-in-damon_ctx
+++ a/mm/damon/core.c
@@ -113,6 +113,38 @@ int damon_select_ops(struct damon_ctx *c
return err;
}
+struct damon_probe *damon_new_probe(void)
+{
+ struct damon_probe *p;
+
+ p = kmalloc_obj(*p);
+ if (!p)
+ return NULL;
+ INIT_LIST_HEAD(&p->list);
+ return p;
+}
+
+void damon_add_probe(struct damon_ctx *ctx, struct damon_probe *probe)
+{
+ list_add_tail(&probe->list, &ctx->probes);
+}
+
+static void damon_del_probe(struct damon_probe *p)
+{
+ list_del(&p->list);
+}
+
+static void damon_free_probe(struct damon_probe *p)
+{
+ kfree(p);
+}
+
+static void damon_destroy_probe(struct damon_probe *p)
+{
+ damon_del_probe(p);
+ damon_free_probe(p);
+}
+
#ifdef CONFIG_DAMON_DEBUG_SANITY
static void damon_verify_new_region(unsigned long start, unsigned long end)
{
@@ -605,6 +637,8 @@ struct damon_ctx *damon_new_ctx(void)
ctx->attrs.min_nr_regions = 10;
ctx->attrs.max_nr_regions = 1000;
+ INIT_LIST_HEAD(&ctx->probes);
+
ctx->addr_unit = 1;
ctx->min_region_sz = DAMON_MIN_REGION_SZ;
@@ -627,12 +661,16 @@ static void damon_destroy_targets(struct
void damon_destroy_ctx(struct damon_ctx *ctx)
{
struct damos *s, *next_s;
+ struct damon_probe *p, *next_p;
damon_destroy_targets(ctx);
damon_for_each_scheme_safe(s, next_s, ctx)
damon_destroy_scheme(s);
+ damon_for_each_probe_safe(p, next_p, ctx)
+ damon_destroy_probe(p);
+
kfree(ctx);
}
_
Patches currently in -mm which might be from sj@kernel.org are
mm-damon-sysfs-schemes-delete-tried-region-in-regions_rmdirs.patch
mm-damon-core-make-charge_addr_from-aware-of-end-address-exclusivity.patch
mm-damon-core-handle-min_region_sz-remaining-quota-as-empty.patch
mm-damon-core-merge-regions-after-applying-damos-schemes.patch
mm-damon-core-introduce-failed-region-quota-charge-ratio.patch
mm-damon-sysfs-schemes-implement-fail_charge_numdenom-files.patch
docs-mm-damon-design-document-fail_charge_numdenom.patch
docs-admin-guide-mm-damon-usage-document-fail_charge_numdenom-files.patch
docs-abi-damon-document-fail_charge_numdenom.patch
mm-damon-tests-core-kunit-test-fail_charge_numdenom-committing.patch
selftests-damon-_damon_sysfs-support-failed-region-quota-charge-ratio.patch
selftests-damon-drgn_dump_damon_status-support-failed-region-quota-charge-ratio.patch
selftests-damon-sysfspy-test-failed-region-quota-charge-ratio.patch
docs-mm-damon-maintainer-profile-add-ai-review-usage-guideline.patch
mm-damon-core-introduce-damon_ctx-paused.patch
mm-damon-sysfs-add-pause-file-under-context-dir.patch
docs-mm-damon-design-update-for-context-pause-resume-feature.patch
docs-admin-guide-mm-damon-usage-update-for-pause-file.patch
docs-abi-damon-update-for-pause-sysfs-file.patch
mm-damon-tests-core-kunit-test-pause-commitment.patch
selftests-damon-_damon_sysfs-support-pause-file-staging.patch
selftests-damon-drgn_dump_damon_status-dump-pause.patch
selftests-damon-sysfspy-check-pause-on-assert_ctx_committed.patch
selftests-damon-sysfspy-pause-damon-before-dumping-status.patch
mm-damon-introduce-damon_set_region_system_rams_default.patch
mm-damon-reclaim-cover-all-system-rams.patch
mm-damon-lru_sort-cover-all-system-rams.patch
mm-damon-core-remove-damon_set_region_biggest_system_ram_default.patch
mm-damon-stat-use-damon_set_region_system_rams_default.patch
docs-admin-guide-mm-damon-reclaim-update-for-entire-memory-monitoring.patch
docs-admin-guide-mm-damon-lru_sort-update-for-entire-memory-monitoring.patch
docs-admin-guide-mm-damon-usage-mark-scheme-filters-sysfs-dir-as-deprecated.patch
docs-abi-damon-mark-schemes-s-filters-deprecated.patch
mm-damon-reclaim-add-autotune_monitoring_intervals-parameter.patch
docs-admin-guide-mm-damon-reclaim-update-for-autotune_monitoring_intervals.patch
mm-damon-stat-add-a-parameter-for-reading-kdamond-pid.patch
docs-admin-guide-mm-damon-stat-document-kdamond_pid-parameter.patch
mm-damon-core-introduce-struct-damon_probe.patch
mm-damon-core-embed-damon_probe-objects-in-damon_ctx.patch
mm-damon-core-introduce-damon_filter.patch
mm-damon-core-commit-probes.patch
mm-damon-core-introduce-damon_region-probe_hits.patch
mm-damon-core-introduce-damon_ops-apply_probes.patch
mm-damon-core-do-data-attributes-monitoring.patch
mm-damon-paddr-support-data-attributes-monitoring.patch
mm-damon-sysfs-implement-probes-dir.patch
mm-damon-sysfs-implement-probe-dir.patch
mm-damon-sysfs-implement-filters-directory.patch
mm-damon-sysfs-implement-filter-dir.patch
mm-damon-sysfs-implement-filter-dir-files.patch
mm-damon-sysfs-setup-probes-on-damon-core-api-parameters.patch
mm-damon-sysfs-schemes-implement-tried_regions-r-probes.patch
mm-damon-sysfs-schemes-implement-probe-dir.patch
mm-damon-sysfs-schemes-implement-probe-hits-file.patch
mm-damon-trace-probe_hits.patch
selftests-damon-sysfssh-test-probes-dir.patch
docs-mm-damon-design-document-data-attributes-monitoring.patch
docs-admin-guide-mm-damon-usage-document-data-attributes-monitoring.patch
mm-damon-core-introduce-damon_filter_type_memcg.patch
mm-damon-paddr-support-damon_filter_type_memcg.patch
mm-damon-sysfs-add-filters-f-path-file.patch
mm-damon-sysfs-schemes-move-memcg_path_to_id-to-sysfs-common.patch
mm-damon-sysfs-setup-damon_filter-memcg_id-from-path.patch
docs-mm-damon-design-update-for-memcg-damon-filter.patch
docs-admin-guide-mm-damon-usage-update-for-memcg-damon-filter.patch
reply other threads:[~2026-05-19 0:55 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
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=20260519005509.01F12C2BCB7@smtp.kernel.org \
--to=akpm@linux-foundation.org \
--cc=mm-commits@vger.kernel.org \
--cc=sj@kernel.org \
/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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.