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mm/damon/paddr: respect return_max_wsum

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apply_probes() ops implementation in DAMON_PADDR is ignoring
return_max_wsum.  Respect it.

Link: https://lore.kernel.org/20260710134651.18084-7-sj@kernel.org
Signed-off-by: SJ 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: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
SJ Park 2026-07-10 06:46:35 -07:00 committed by Andrew Morton
parent cfe9e8c738
commit 3858025f48
1 changed files with 5 additions and 2 deletions
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7
mm/damon/paddr.c
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@ -172,6 +172,7 @@ static unsigned int damon_pa_apply_probes(struct damon_ctx *ctx,
struct damon_target *t;
struct damon_region *r;
struct damon_probe *p;
unsigned int max_wsum = 0;
damon_for_each_target(t, ctx) {
damon_for_each_region(r, t) {
@ -182,7 +183,6 @@ static unsigned int damon_pa_apply_probes(struct damon_ctx *ctx,
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));
@ -193,9 +193,12 @@ static unsigned int damon_pa_apply_probes(struct damon_ctx *ctx,
}
if (folio)
folio_put(folio);
if (return_max_wsum)
max_wsum = max(damon_probe_hits_wsum(r, false,
ctx), max_wsum);
}
}
return 0;
return max_wsum;
}
/*