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Fri, 13 Jan 2023 16:16:27 -0800 (PST) Received: from fedora.hsd1.ca.comcast.net ([2601:644:8002:1c20::2e58]) by smtp.googlemail.com with ESMTPSA id nl5-20020a17090b384500b0020b21019086sm4064541pjb.3.2023.01.13.16.16.26 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 13 Jan 2023 16:16:27 -0800 (PST) From: "Vishal Moola (Oracle)" To: linux-mm@kvack.org Cc: linux-kernel@vger.kernel.org, akpm@linux-foundation.org, "Vishal Moola (Oracle)" Subject: [PATCH 1/2] mm/khugepaged: Introduce release_pte_folio() to replace release_pte_page() Date: Fri, 13 Jan 2023 16:15:55 -0800 Message-Id: <20230114001556.43795-1-vishal.moola@gmail.com> X-Mailer: git-send-email 2.38.1 MIME-Version: 1.0 X-Stat-Signature: uyftq86gx5aeje5mgzdgzaxitufwgi8z X-Rspam-User: X-Rspamd-Queue-Id: 199D12000B X-Rspamd-Server: rspam06 X-HE-Tag: 1673655388-663457 X-HE-Meta: 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 LupjWuks LjWfg4XeWiQCjHCY1kR8zmhOO15fUi1T7EfYLxJ6ipbL0F7AzFMvgbK4tmRMs83Crbd6p8Fhk4jjAj1mEO2gODGGQ2Cz29Nvfk8cMxXXqaXJSdrzTVAidWW28U8A0/iMVDFDmoD+LufHNLqyCaSxVqlNpTLrcDkOwVFR7HEsFbrf/jwUBd0iWuKkrXUhM9yyFVVzNmbe67wFl/1LqDjNvwSUNk+KUTeozE3SUtpn1eRCir4i5YzS7YB7vJx/bK4Rk+2hqctSnAYObndG1Xss5xe4VYg== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: release_pte_page() is converted to be a wrapper for release_pte_folio() to help facilitate the khugepaged conversion to folios. This replaces 3 calls to compound_head() with 1, and saves 85 bytes of kernel text. Signed-off-by: Vishal Moola (Oracle) --- mm/khugepaged.c | 15 ++++++++++----- 1 file changed, 10 insertions(+), 5 deletions(-) diff --git a/mm/khugepaged.c b/mm/khugepaged.c index e1c7c1f357ef..4888e8688401 100644 --- a/mm/khugepaged.c +++ b/mm/khugepaged.c @@ -492,13 +492,18 @@ void __khugepaged_exit(struct mm_struct *mm) } } +static void release_pte_folio(struct folio *folio) +{ + node_stat_mod_folio(folio, + NR_ISOLATED_ANON + folio_is_file_lru(folio), + -folio_nr_pages(folio)); + folio_unlock(folio); + folio_putback_lru(folio); +} + static void release_pte_page(struct page *page) { - mod_node_page_state(page_pgdat(page), - NR_ISOLATED_ANON + page_is_file_lru(page), - -compound_nr(page)); - unlock_page(page); - putback_lru_page(page); + release_pte_folio(page_folio(page)); } static void release_pte_pages(pte_t *pte, pte_t *_pte,