From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 75D62212D7C for ; Tue, 19 May 2026 00:55:09 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779152109; cv=none; b=fVCf4mj2190XgGNG8bDGSr6/u7zQDMR1GrfeNxxBQ9yhFgPxAaswVEfvclDD+Xqz8qtNTp24KIbUkHGxyZ1w/V5ooUswBqKYfx3flfdWo9w+be5W2roEoV7cZhZFbMGMYTwFf6vEaGBMAT+Qks9RNbyFQxnH/Ydh9iUlffG7abQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779152109; c=relaxed/simple; bh=vOgHnF8jJhQ6M1Wx/OaJbtr/D46C1CJ9OL0gAyMXD8o=; h=Date:To:From:Subject:Message-Id; b=XsJiHCz37iudAm6UtXmazpviohKXDqMks8pQkna/5Oxd+9nhqpAgnN9gxXoA1D8zininN+ITUlit2VWsvwbFllqOMDvY0BPm5uIfY6JCENakL/fAd1qpcgoLPqJhiw8pa5AKt9IiA3tUSfVsHujPNOrolf7iH/SjKbJW2Fg8PO0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b=g2YnqMH3; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b="g2YnqMH3" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 01F12C2BCB7; Tue, 19 May 2026 00:55:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1779152109; bh=vOgHnF8jJhQ6M1Wx/OaJbtr/D46C1CJ9OL0gAyMXD8o=; h=Date:To:From:Subject:From; b=g2YnqMH3GhjxYfPYZvA1Zpb4AIeE5OUSavJeLkFztMqpzwMzjOXVPSzglpeoKCp+i mLjRGrjpc2G2U+tzsp/OEAS+1FsgZ6gjT2yWfbOnzDBB6i2qbJlexwMF9rFVzYti0Y WsQdJ5x1311ssGqYrjZXzdPs1b9rCtNwEJYDWLh0= Date: Mon, 18 May 2026 17:55:08 -0700 To: mm-commits@vger.kernel.org,sj@kernel.org,akpm@linux-foundation.org From: Andrew Morton Subject: + mm-damon-core-embed-damon_probe-objects-in-damon_ctx.patch added to mm-new branch Message-Id: <20260519005509.01F12C2BCB7@smtp.kernel.org> Precedence: bulk X-Mailing-List: mm-commits@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: 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 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 Cc: David Hildenbrand Cc: Jonathan Corbet Cc: Liam R. Howlett Cc: Lorenzo Stoakes Cc: "Masami Hiramatsu (Google)" Cc: Mathieu Desnoyers Cc: Michal Hocko Cc: Mike Rapoport Cc: Shuah Khan Cc: Steven Rostedt Cc: Suren Baghdasaryan Cc: Vlastimil Babka Signed-off-by: Andrew Morton --- 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