From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from invmail4.hynix.com (exvmail4.skhynix.com [166.125.252.92]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 5EA2412A15E for ; Mon, 26 Feb 2024 14:06:20 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=166.125.252.92 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708956382; cv=none; b=H2Ej1ic0rnMu11rTJYbhWsYXL10upr7LY28QE4VSL7PV4GWyb2YztVOMNHvCg0WSz3NFx38nfiiyOUgsgVTTzmj9xw7ZfDSsKRpsDkfAkfmEzl4QmIICNbzjLih+NtrZPf7bzbtabg9VuzvAd5pW1vJGVVExspWwjoyh7JOZ/ZY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708956382; c=relaxed/simple; bh=Ig1CU3NKL8/cdJN+rmc1e4GaDBcrnBkfyq6QFF/1g7U=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=ePgHQwlJjm8Y20egSUgDT7HGXrL4e8mJEJMVJndpkqS+dpPn1q9SRg5l+GRU4VEp86j3RGbt256rtnPGny1bNnAqfMGM1OgvjFNxXbpu+FreRV4aZXOLfXdOGbM5o9XhlttDkVTPGxaNgWhF7t9Ysxe4/hCjvV9ZLSH9a8A8Vhg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=sk.com; spf=pass smtp.mailfrom=sk.com; arc=none smtp.client-ip=166.125.252.92 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=sk.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=sk.com X-AuditID: a67dfc5b-d6dff70000001748-5d-65dc9ad5f17d From: Honggyu Kim To: sj@kernel.org, damon@lists.linux.dev, linux-mm@kvack.org Cc: akpm@linux-foundation.org, apopple@nvidia.com, baolin.wang@linux.alibaba.com, dave.jiang@intel.com, honggyu.kim@sk.com, hyeongtak.ji@sk.com, kernel_team@skhynix.com, linmiaohe@huawei.com, linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org, lizhijian@cn.fujitsu.com, mathieu.desnoyers@efficios.com, mhiramat@kernel.org, rakie.kim@sk.com, rostedt@goodmis.org, surenb@google.com, yangx.jy@fujitsu.com, ying.huang@intel.com, ziy@nvidia.com, 42.hyeyoo@gmail.com Subject: [PATCH v2 1/7] mm/damon: refactor DAMOS_PAGEOUT with migration_mode Date: Mon, 26 Feb 2024 23:05:47 +0900 Message-ID: <20240226140555.1615-2-honggyu.kim@sk.com> X-Mailer: git-send-email 2.43.0.windows.1 In-Reply-To: <20240226140555.1615-1-honggyu.kim@sk.com> References: <20240226140555.1615-1-honggyu.kim@sk.com> Precedence: bulk X-Mailing-List: damon@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFlrOIsWRmVeSWpSXmKPExsXC9ZZnoe61WXdSDRb+ZbSY2GNgMWf9GjaL XTdCLP7vPcZo8eT/b1aLEzcb2Sw6vy9lsbi8aw6bxb01/1ktjqw/y2Kx7haQtfnsGWaLxcvV LPZ1PGCyOPz1DZPF5EsL2CxeTDnDaHFy1mQWi9lH77E7CHv8PziJ2WPp6TdsHhuagMTOWXfZ PVr23WL3WLCp1KPlyFtWj8V7XjJ5bFrVyeax6dMkdo8TM36zeOx8aOnxYvNMRo/e5ndsHp83 yQXwR3HZpKTmZJalFunbJXBlzGnYwFzQwlsx78catgbGK1xdjJwcEgImEjfmPmXqYuQAsxdv 1QIJswmoSVx5OQksLCLgILHqq0IXIxcHs0ADi8SPz5dYQGqEBXwk1v67wQ5iswioSvzaNB8s zitgJvHoWC8jxHhNicfbf4LVcAqYS/w/3M4GMlMIqObobWaIckGJkzOfgLUyC8hLNG+dzQyy S0LgFLvE3yvrWSHmSEocXHGDZQIj/ywkPbOQ9CxgZFrFKJSZV5abmJljopdRmZdZoZecn7uJ ERh9y2r/RO9g/HQh+BCjAAejEg+vQ+2dVCHWxLLiytxDjBIczEoivOEyN1OFeFMSK6tSi/Lj i0pzUosPMUpzsCiJ8xp9K08REkhPLEnNTk0tSC2CyTJxcEo1MDK+N4yt27RA9+y/ac7bG3rd Dz+yUDrannj3QV6ted70+a3f/ZKifvgU12UsuB/YVTyxslSkL/lnqMwXP1sPWSGeB3JTFtmG 3z7qLOWYNm9R24NJbss36+yscjzc+K1eUO+lQNXsWZ2JgQd3xe8zfeywek10WvC1nbd1tSsZ rr5e/Ffj2KdFS5RYijMSDbWYi4oTAbUWVdi6AgAA X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFprLIsWRmVeSWpSXmKPExsXCNUNLT/fqrDupBo0HdSwm9hhYzFm/hs1i 140Qi/97jzFaPPn/m9XixM1GNovPz14zW3Q++c5ocXjuSVaLzu9LWSwu75rDZnFvzX9WiyPr z7JYrLsFZG0+e4bZYvFyNYtD156zWuzreMBkcfjrGyaLyZcWsFm8mHKG0eLkrMksFrOP3mN3 EPf4f3ASs8fS02/YPDY0AYmds+6ye7Tsu8XusWBTqUfLkbesHov3vGTy2LSqk81j06dJ7B4n Zvxm8dj50NLjxeaZjB69ze/YPL7d9vBY/OIDU4BgFJdNSmpOZllqkb5dAlfGnIYNzAUtvBXz fqxha2C8wtXFyMEhIWAisXirVhcjJwebgJrElZeTmEDCIgIOEqu+KnQxcnEwCzSwSPz4fIkF pEZYwEdi7b8b7CA2i4CqxK9N88HivAJmEo+O9TKC2BICmhKPt/8Eq+EUMJf4f7idDWSmEFDN 0dvMEOWCEidnPgFrZRaQl2jeOpt5AiPPLCSpWUhSCxiZVjGKZOaV5SZm5pjqFWdnVOZlVugl 5+duYgRG2rLaPxN3MH657H6IUYCDUYmH16H2TqoQa2JZcWXuIUYJDmYlEd5wmZupQrwpiZVV qUX58UWlOanFhxilOViUxHm9wlMThATSE0tSs1NTC1KLYLJMHJxSDYxhHAuf6dzr6NtyNJy7 13qtTeBhUWmln4dEykuTjp9kPrPYvdXukZi588M8jvz/Okuuvs5e+U/k4+zt36xcRG4WSjyW j2Gbe+7GhJ35d3/qb7q6TXVr2Mlrj62Yb2bkL4n3/jzrYsN99qW/1PO3W39Rl/abUabYKMh2 /GZw+UrX89m3ys78F+1XYinOSDTUYi4qTgQATejUCbACAAA= X-CFilter-Loop: Reflected This is a preparation patch that introduces migration modes. The damon_pa_pageout is renamed to damon_pa_migrate and it receives an extra argument for migration_mode. No functional changes applied. Signed-off-by: Honggyu Kim --- mm/damon/paddr.c | 18 +++++++++++++++--- 1 file changed, 15 insertions(+), 3 deletions(-) diff --git a/mm/damon/paddr.c b/mm/damon/paddr.c index 081e2a325778..277a1c4d833c 100644 --- a/mm/damon/paddr.c +++ b/mm/damon/paddr.c @@ -224,7 +224,12 @@ static bool damos_pa_filter_out(struct damos *scheme, struct folio *folio) return false; } -static unsigned long damon_pa_pageout(struct damon_region *r, struct damos *s) +enum migration_mode { + MIG_PAGEOUT, +}; + +static unsigned long damon_pa_migrate(struct damon_region *r, struct damos *s, + enum migration_mode mm) { unsigned long addr, applied; LIST_HEAD(folio_list); @@ -249,7 +254,14 @@ static unsigned long damon_pa_pageout(struct damon_region *r, struct damos *s) put_folio: folio_put(folio); } - applied = reclaim_pages(&folio_list); + switch (mm) { + case MIG_PAGEOUT: + applied = reclaim_pages(&folio_list); + break; + default: + /* Unexpected migration mode. */ + return 0; + } cond_resched(); return applied * PAGE_SIZE; } @@ -297,7 +309,7 @@ static unsigned long damon_pa_apply_scheme(struct damon_ctx *ctx, { switch (scheme->action) { case DAMOS_PAGEOUT: - return damon_pa_pageout(r, scheme); + return damon_pa_migrate(r, scheme, MIG_PAGEOUT); case DAMOS_LRU_PRIO: return damon_pa_mark_accessed(r, scheme); case DAMOS_LRU_DEPRIO: -- 2.34.1