From nobody Fri Dec 19 20:32:47 2025 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 19C0422ACD3; Wed, 16 Apr 2025 04:26:02 +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=1744777562; cv=none; b=m7kRK5mgk4Mk6VqmmHaqh5Y8UQjnlq0u5e05L0U2bsAAO6IPG/jMNQoNG6hD+lIzRgVNfGt9j9/TGE6eMeyJELh1+em+uspXRTeubcmSfUxn2PZeNEhA0OKWSoK6tvRxMLPgvDb4MQ/a1SJmcOcfat+i62onet4Tf1xI7Cqmteo= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744777562; c=relaxed/simple; bh=Myr9hqDo4a3r6KKSLBNVuCCKy2yFFpmUIR+1u2z5KfY=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=YI2Uw+B6IptaLzkvpHsiAKBs6hBH9wuxCxjIfznLKQiRdjIH207i91wBzWzPmodWhkTpOpkDZehM8cva0dyAN7Lq1K90WBvRKNlVkI0LNEjH4Rh5UIgXyl/RmCH22FHHNWZRIa6bFZEk0zYd1cuph+WxC/QBdVpzhAii/V3riQk= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=ssgOo52A; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="ssgOo52A" Received: by smtp.kernel.org (Postfix) with ESMTPSA id BA77EC4AF09; Wed, 16 Apr 2025 04:26:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1744777561; bh=Myr9hqDo4a3r6KKSLBNVuCCKy2yFFpmUIR+1u2z5KfY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ssgOo52A+rMsAEaIo1nl30iYl9LUCcs1e6V1UzIcrgdUsg8Q4lUrtgTm52upgkvT6 6WBId0vtCYjDycLRtsC6a1hm6EP3xIy2Jhh67DomvL4cbXtSkJ731/nkBOAzKUERVr Pm7+eWR27haRl5A6P4pi/dHzOKewqdiJ3X93/bZ+j4x8PMuScCEa6U2i8xB5y3tZbq GP2ls75H3R5q6PchY2DVVfS4/3sLdO3JhMnWa7epoYxSN8V9Xf8+4GfBphZlbc4r2Y KNLtILFsYKs5rS1KvuO74Or7ZlrSZ+3vRfJl9uo8gmy6BO2f2FZZzpMwtl15kOyTyk oh38xbLPIs6hA== From: SeongJae Park To: Cc: SeongJae Park , Andrew Morton , Ze Zuo , damon@lists.linux.dev, kernel-team@meta.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: [RFC PATCH 05/10] mm/damon/paddr: support addr_unit for MIGRATE_{HOT,COLD} Date: Tue, 15 Apr 2025 21:25:46 -0700 Message-Id: <20250416042551.158131-6-sj@kernel.org> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20250416042551.158131-1-sj@kernel.org> References: <20250416042551.158131-1-sj@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Add support of addr_unit for DAMOS_MIGRATE_HOT and DAMOS_MIGRATE_COLD action handling from the DAMOS operation implementation for the physical address space. Signed-off-by: SeongJae Park --- mm/damon/paddr.c | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) diff --git a/mm/damon/paddr.c b/mm/damon/paddr.c index fc1c720e8cb5..20955eefcdbf 100644 --- a/mm/damon/paddr.c +++ b/mm/damon/paddr.c @@ -518,15 +518,17 @@ static unsigned long damon_pa_migrate_pages(struct li= st_head *folio_list, return nr_migrated; } =20 -static unsigned long damon_pa_migrate(struct damon_region *r, struct damos= *s, +static unsigned long damon_pa_migrate(struct damon_region *r, + unsigned long addr_unit, struct damos *s, unsigned long *sz_filter_passed) { - unsigned long addr, applied; + phys_addr_t addr; + unsigned long applied; LIST_HEAD(folio_list); struct folio *folio; =20 - addr =3D r->ar.start; - while (addr < r->ar.end) { + addr =3D damon_pa_phys_addr(r->ar.start, addr_unit); + while (addr < damon_pa_phys_addr(r->ar.end, addr_unit)) { folio =3D damon_get_folio(PHYS_PFN(addr)); if (damon_pa_invalid_damos_folio(folio, s)) { addr +=3D PAGE_SIZE; @@ -691,7 +693,7 @@ static unsigned long damon_pa_apply_scheme(struct damon= _ctx *ctx, sz_filter_passed); case DAMOS_MIGRATE_HOT: case DAMOS_MIGRATE_COLD: - return damon_pa_migrate(r, scheme, sz_filter_passed); + return damon_pa_migrate(r, aunit, scheme, sz_filter_passed); #ifdef CONFIG_ACMA case DAMOS_ALLOC: return damon_pa_alloc_or_free(r, scheme, true); --=20 2.39.5