From: Ravi Jonnalagadda <ravis.opensrc@gmail.com>
To: sj@kernel.org, akinobu.mita@gmail.com, damon@lists.linux.dev,
linux-mm@kvack.org, linux-kernel@vger.kernel.org,
linux-doc@vger.kernel.org
Cc: akpm@linux-foundation.org, corbet@lwn.net, bijan311@gmail.com,
ajayjoshi@micron.com, honggyu.kim@sk.com, yunjeong.mun@sk.com,
ravis.opensrc@gmail.com
Subject: [RFC PATCH 3/6] mm/damon/sysfs: install perf_events on apply
Date: Fri, 29 May 2026 09:56:37 -0700 [thread overview]
Message-ID: <20260529165640.820-4-ravis.opensrc@gmail.com> (raw)
In-Reply-To: <20260529165640.820-1-ravis.opensrc@gmail.com>
Call damon_sysfs_add_perf_events() from damon_sysfs_apply_inputs() so
events configured under sample/perf_events/ get attached to the
damon_ctx when the kdamond starts.
Signed-off-by: Ravi Jonnalagadda <ravis.opensrc@gmail.com>
---
mm/damon/sysfs.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/mm/damon/sysfs.c b/mm/damon/sysfs.c
index 9f71871a249d8..bc4a931fe3f0a 100644
--- a/mm/damon/sysfs.c
+++ b/mm/damon/sysfs.c
@@ -2092,6 +2092,9 @@ static int damon_sysfs_apply_inputs(struct damon_ctx *ctx,
return err;
err = damon_sysfs_set_sample_control(&ctx->sample_control,
sys_ctx->attrs->sample);
+ if (err)
+ return err;
+ err = damon_sysfs_add_perf_events(ctx, sys_ctx->attrs->sample);
if (err)
return err;
err = damon_sysfs_add_targets(ctx, sys_ctx->targets);
--
2.43.0
next prev parent reply other threads:[~2026-05-29 16:57 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-29 16:56 [RFC PATCH 0/6] mm/damon: hardware-sampled access reports Ravi Jonnalagadda
2026-05-29 16:56 ` [RFC PATCH 1/6] mm/damon: add struct damon_perf_event{,_attr} and per-ctx perf_events list Ravi Jonnalagadda
2026-05-29 16:56 ` [RFC PATCH 2/6] mm/damon/sysfs-sample: expose perf_events configuration via sysfs Ravi Jonnalagadda
2026-05-29 16:56 ` Ravi Jonnalagadda [this message]
2026-05-29 16:56 ` [RFC PATCH 4/6] mm/damon/core: per-CPU SPSC ring drain and damon_perf_event lifecycle Ravi Jonnalagadda
2026-05-29 16:56 ` [RFC PATCH 5/6] mm/damon/vaddr: implement perf-event access check Ravi Jonnalagadda
2026-05-29 16:56 ` [RFC PATCH 6/6] mm/damon: add damos_node_eligible_mem_bp tracepoint Ravi Jonnalagadda
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