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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-d6dff70000001748-86-660f957f95fe 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, 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, art.jeongseob@gmail.com Subject: [RFC PATCH v3 1/7] mm/damon/paddr: refactor DAMOS_PAGEOUT with migration_mode Date: Fri, 5 Apr 2024 15:08:50 +0900 Message-ID: <20240405060858.2818-2-honggyu.kim@sk.com> X-Mailer: git-send-email 2.43.0.windows.1 In-Reply-To: <20240405060858.2818-1-honggyu.kim@sk.com> References: <20240405060858.2818-1-honggyu.kim@sk.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFlrMIsWRmVeSWpSXmKPExsXC9ZZnkW79VP40g0kXlS0m9hhYzFm/hs1i 140Qi/sPXrNb/N97jNHiyf/frBYnbjayWXR+X8picXnXHDaLe2v+s1ocWX+WxWLz2TPMFouX q1ns63jAZHH46xsmi8mXFrBZvJhyhtHi5KzJLBazj95jdxD2WHr6DZvHhiYgsXPWXXaPln23 2D0WbCr1aDnyltVj8Z6XTB6bVnWyeWz6NInd48SM3yweOx9aerzYPJPRo7f5HZvH501yAXxR XDYpqTmZZalF+nYJXBlzGjYwF7TwVsz7sYatgfEKVxcjJ4eEgIlE94t9jF2MHGD27WdaIGE2 ATWJKy8nMYGERQQcJFZ9Vehi5OJgFvjPLHG59xcrSI2wQJhE0/JXYDaLgKrE2n13WUBsXgEz if1HXzJBjNeUeLz9JzuIzSlgLjHv8QYwWwio5tPBY+wQ9YISJ2c+AetlFpCXaN46mxlkmYTA KXaJzzua2SAGSUocXHGDZQIj/ywkPbOQ9CxgZFrFKJSZV5abmJljopdRmZdZoZecn7uJERh1 y2r/RO9g/HQh+BCjAAejEg+vx1y+NCHWxLLiytxDjBIczEoivN0OvGlCvCmJlVWpRfnxRaU5 qcWHGKU5WJTEeY2+lacICaQnlqRmp6YWpBbBZJk4OKUaGNme7eV0WT0z7nfAmw2pXAvTP8Vu CT4TmjfVRrQ3T+R5eFryrkTPFsOtAtE8t7+/Yj03c8H2Q6wzjf+pZ6o/VkgyuF7yM2rhmy1b nUv8Wh6n3f9UEZi6mF3/9bF/M1xeJAQynvCJ810UGajY/y5m/ecPG1MkW1YeSlYRtf3w4TaP +yKRSfa2k5VYijMSDbWYi4oTASXCDe+2AgAA X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFprLIsWRmVeSWpSXmKPExsXCNUNLT7d+Kn+awd2dohYTewws5qxfw2ax 60aIxf0Hr9kt/u89xmjx5P9vVosTNxvZLD4/e81s0fnkO6PF4bknWS06vy9lsbi8aw6bxb01 /1ktjqw/y2Kx+ewZZovFy9UsDl17zmqxr+MBk8Xhr2+YLCZfWsBm8WLKGUaLk7Mms1jMPnqP 3UHcY+npN2weG5qAxM5Zd9k9WvbdYvdYsKnUo+XIW1aPxXteMnlsWtXJ5rHp0yR2jxMzfrN4 7Hxo6fFi80xGj97md2we3257eCx+8YHJ4/MmuQCBKC6blNSczLLUIn27BK6MOQ0bmAtaeCvm /VjD1sB4hauLkYNDQsBE4vYzrS5GTg42ATWJKy8nMYGERQQcJFZ9Vehi5OJgFvjPLHG59xcr SI2wQJhE0/JXYDaLgKrE2n13WUBsXgEzif1HXzKB2BICmhKPt/9kB7E5Bcwl5j3eAGYLAdV8 OniMHaJeUOLkzCdgvcwC8hLNW2czT2DkmYUkNQtJagEj0ypGkcy8stzEzBxTveLsjMq8zAq9 5PzcTYzASFtW+2fiDsYvl90PMQpwMCrx8HrM5UsTYk0sK67MPcQowcGsJMLb7cCbJsSbklhZ lVqUH19UmpNafIhRmoNFSZzXKzw1QUggPbEkNTs1tSC1CCbLxMEp1cC4e7Y008H3Puvn802q KLBwYKqy+vuxWH3tMi73NL1wTbvn/h7l23ofn17MY7ciq/dfWHvN5Ztz96c+j6jVe141oa7V TanTctfMV50q3bOyr9jJ3JUvuflup6jOxUVSO+1jJnOFVwrx3fBly9J+/6hNOyshcXX1WYkp R14Y7LGYEbY0iJU/r1qJpTgj0VCLuag4EQAvLqFpsAIAAA== 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