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From: SJ Park <sj@kernel.org>
Cc: SJ Park <sj@kernel.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	damon@lists.linux.dev, linux-kernel@vger.kernel.org,
	linux-mm@kvack.org
Subject: [RFC PATCH 03/16] mm/damon/paddr: set samples in apply_probes() if requested
Date: Sun,  5 Jul 2026 13:57:25 -0700	[thread overview]
Message-ID: <20260705205743.98656-4-sj@kernel.org> (raw)
In-Reply-To: <20260705205743.98656-1-sj@kernel.org>

apply_probe() callback implementation in DAMON_PADDR is ignoring
set_samples parameter.  Respect it.

Signed-off-by: SJ Park <sj@kernel.org>
---
 mm/damon/paddr.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/mm/damon/paddr.c b/mm/damon/paddr.c
index b13bf7c6eade3..ff4fcca949660 100644
--- a/mm/damon/paddr.c
+++ b/mm/damon/paddr.c
@@ -178,6 +178,10 @@ static void damon_pa_apply_probes(struct damon_ctx *ctx, bool set_samples)
 			phys_addr_t pa;
 			struct folio *folio;
 
+			if (set_samples)
+				r->sampling_addr = damon_rand(ctx, r->ar.start,
+						r->ar.end);
+
 			pa = damon_pa_phys_addr(r->sampling_addr,
 					ctx->addr_unit);
 			folio = damon_get_folio(PHYS_PFN(pa));
-- 
2.47.3

  parent reply	other threads:[~2026-07-05 20:57 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-07-05 20:57 [RFC PATCH 00/16] mm/damon: introduce data attributes only monitoring SJ Park
2026-07-05 20:57 ` [RFC PATCH 01/16] mm/damon/core: introduce damon_probe->weight SJ Park
2026-07-05 21:04   ` sashiko-bot
2026-07-05 21:21     ` SJ Park
2026-07-05 20:57 ` [RFC PATCH 02/16] mm/damon/core: ask apply_probes() ops callback to set sampling address SJ Park
2026-07-05 21:07   ` sashiko-bot
2026-07-05 21:25     ` SJ Park
2026-07-05 20:57 ` SJ Park [this message]
2026-07-05 21:11   ` [RFC PATCH 03/16] mm/damon/paddr: set samples in apply_probes() if requested sashiko-bot
2026-07-05 21:28     ` SJ Park
2026-07-05 20:57 ` [RFC PATCH 04/16] mm/damon/core: ask apply_probe() to return max probe hits weighted sum SJ Park
2026-07-05 20:57 ` [RFC PATCH 05/16] mm/damon/core: implement damon_probe_hits_wsum() SJ Park
2026-07-05 21:13   ` sashiko-bot
2026-07-05 21:30     ` SJ Park
2026-07-05 20:57 ` [RFC PATCH 06/16] mm/damon/paddr: respect return_max_wsum SJ Park
2026-07-05 20:57 ` [RFC PATCH 07/16] mm/damon/core: extend merge function to work with probe hits SJ Park
2026-07-05 21:11   ` sashiko-bot
2026-07-05 21:38     ` SJ Park
2026-07-05 20:57 ` [RFC PATCH 08/16] mm/damon/core: disable access monitoring when probe weights are set SJ Park
2026-07-05 21:19   ` sashiko-bot
2026-07-05 20:57 ` [RFC PATCH 09/16] mm/damon/core: set samples in apply_probes() if " SJ Park
2026-07-05 20:57 ` [RFC PATCH 10/16] mm/damon/core: s/max_nr_accesses/max_merge_score/ in kdamond_fn() SJ Park
2026-07-05 20:57 ` [RFC PATCH 11/16] mm/damon/core: get merge threshold from probe hits when weights are set SJ Park
2026-07-05 21:12   ` sashiko-bot
2026-07-05 21:41     ` SJ Park
2026-07-05 20:57 ` [RFC PATCH 12/16] mm/damon/core: implement damon_has_probe_weight() SJ Park
2026-07-05 21:15   ` sashiko-bot
2026-07-05 21:45     ` SJ Park
2026-07-05 20:57 ` [RFC PATCH 13/16] mm/damon/sysfs: implement probe/weight file SJ Park
2026-07-05 20:57 ` [RFC PATCH 14/16] Docs/mm/damon/design: document attrs-only monitoring SJ Park
2026-07-05 21:05   ` sashiko-bot
2026-07-05 21:46     ` SJ Park
2026-07-05 20:57 ` [RFC PATCH 15/16] Docs/admin-guide/mm/damon/usage: document weight sysfs file SJ Park
2026-07-05 21:07   ` sashiko-bot
2026-07-05 21:48     ` SJ Park
2026-07-05 20:57 ` [RFC PATCH 16/16] Docs/ABI/damon: document probe weight file SJ Park

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