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Thu, 27 Feb 2025 01:58:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1740621483; bh=N/YtlGcWQ2PX0NMUIcuI8F7U0I6DV10Xf2TomWII3qk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=t1dUbAnfFVOaSAla8yVUEws7sBVMN8BWmcjrpG4/6zKUr56c2+Hgd9MoRMyC7DcE+ 6eGzAOyhCaUMviM/3vJ6pFMlhbeVEg0jemrvzo/Edm7SrN+agFMW3fwmoaD8xrBMCb y7myLvuuU+3pID+CqtewZT+vjo/3aVeHbqEfBFYBwPOtkvlOU4QRFJTIjadPYKnENr 6ApnqsgnyiFci4rNtMiRv3JMog+qrrRbMV97PHlfoj47WicQ5NnM7xlL0uLEcC4gdy mlnjVmdd05ZDzVmcEC4jVaF/tjnP4RwkquBCakk3frYFaDAsRPoLacw0Zizdu3dQl8 /J+2uSXbBzwDg== From: SeongJae Park To: Cc: SeongJae Park , Andrew Morton , damon@lists.linux.dev, kernel-team@meta.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: [RFC PATCH v2 2/9] mm/damon/paddr: support ops_filters Date: Wed, 26 Feb 2025 17:57:47 -0800 Message-Id: <20250227015754.38789-3-sj@kernel.org> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20250227015754.38789-1-sj@kernel.org> References: <20250227015754.38789-1-sj@kernel.org> MIME-Version: 1.0 X-Rspamd-Server: rspam02 X-Rspamd-Queue-Id: 35017180007 X-Stat-Signature: sd957zc3iee9n6cfkz4d6hzso1ejcr5q X-Rspam-User: X-HE-Tag: 1740621484-222395 X-HE-Meta: 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 MJ8Lcjyr Cw7P4Fddl/+tN2PUeIX2nfox4+rJ2spB8eFAx0YG/lH4QGk/lu1UzpZHNhKUwrlG+DjZprET4NZ5zfs6XO6lvn9GohWN4H1PpGix0x01wTy+s8vrKzXJjbHJ/5hlh9MW3Gu0VHmMDLo+IourcSaTawVa+hJRAHJtss5NmnOVXUW1WHaGubTr9sgVoRN/ZjoJSzgZKq0t670OlOhYKseyV8YHVhBQGPPP+eCkNCiaM3FFRCwCfjGDk/G2q8grpVFa7fSNx0C9ElalnpjkTeWAC6iPI6Q== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000001, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: DAMON keeps all DAMOS filters in damos->filters. No filter is saved in damos->ops_filters, but upcoming changes will make it to use damos->ops_filters to have all operations layer handled DAMOS filters. DAMON physical address space operations set implementation (paddr) is not ready for the changes, since it handles only damos->filters. To avoid any breakage during the upcoming changes, make paddr to handle both lists. After the change is made, ->filters support on paddr can be safely removed. Signed-off-by: SeongJae Park --- mm/damon/paddr.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/mm/damon/paddr.c b/mm/damon/paddr.c index 25090230da17..3e651308ba5d 100644 --- a/mm/damon/paddr.c +++ b/mm/damon/paddr.c @@ -257,6 +257,10 @@ static bool damos_pa_filter_out(struct damos *scheme, struct folio *folio) if (damos_pa_filter_match(filter, folio)) return !filter->allow; } + damos_for_each_ops_filter(filter, scheme) { + if (damos_pa_filter_match(filter, folio)) + return !filter->allow; + } return false; } @@ -287,6 +291,12 @@ static unsigned long damon_pa_pageout(struct damon_region *r, struct damos *s, break; } } + damos_for_each_ops_filter(filter, s) { + if (filter->type == DAMOS_FILTER_TYPE_YOUNG) { + install_young_filter = false; + break; + } + } if (install_young_filter) { filter = damos_new_filter( DAMOS_FILTER_TYPE_YOUNG, true, false); @@ -535,6 +545,8 @@ static bool damon_pa_scheme_has_filter(struct damos *s) damos_for_each_filter(f, s) return true; + damos_for_each_ops_filter(f, s) + return true; return false; }