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(unknown []) by gzga-smtp-mtada-g1-4 (Coremail) with SMTP id _____wDXH5khWG9oysB5Dw--.23816S2; Thu, 10 Jul 2025 14:05:22 +0800 (CST) From: Chi Zhiling To: willy@infradead.org, akpm@linux-foundation.org Cc: linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, Chi Zhiling Subject: [PATCH] readahead: Use folio_nr_pages() instead of shift operation Date: Thu, 10 Jul 2025 14:04:51 +0800 Message-ID: <20250710060451.3535957-1-chizhiling@163.com> X-Mailer: git-send-email 2.43.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CM-TRANSID:_____wDXH5khWG9oysB5Dw--.23816S2 X-Coremail-Antispam: 1Uf129KBjvdXoWruF47ZrWUXFyUCw47Jry5Arb_yoW3Xwc_WF W0kw4qgF18GF4Sga1Y9ayfGFW0g398CryUXF4DZF9rtay8Was7Xa4Yqr10vr1DXr1YkF43 JwsIqF98urn8GjkaLaAFLSUrUUUUjb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUvcSsGvfC2KfnxnUUI43ZEXa7IU8co7tUUUUU== X-Originating-IP: [116.128.244.169] X-CM-SenderInfo: hfkl6xxlol0wi6rwjhhfrp/1tbiFBCGnWhvTwjKEgAAsH X-Rspamd-Queue-Id: C7F204000C X-Stat-Signature: nbx8ij136rqskn6t4tqar5r9uxxr1kgm X-Rspam-User: X-Rspamd-Server: rspam06 X-HE-Tag: 1752127540-849248 X-HE-Meta: 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 6Sm1ytjO WwmSc/4u/lRV1gjZqnsYMeHysCt9pKnnVlDFCnKlmMzr2p5kEFa7EP3BBnyKLBaYnjYuP+6CnsWLz8MbdB3DqYN7t+cLsjEomTWoyI1SbWSjj3D6ycIPdcU25ZQUCAO7+JS0Xz0RhMX3qrLU/piZxiR8lklU0JqvAK5rm8VZ8erRTFPoyF4B8bDt3skqMXWVPMhFyvVSkAxJRTfKF1bpSP559Xhp8Y9zjwKQYO3p7yyh/Scy5EKBToqaHadbcDcjJ0Phi5cusyWjvcE9FRx21BazHv2fyW3K3g4jWoC9qHN9k+CKOCBikU1xDEyRsLU90yZrHzQXUfOrbF1Gi/cQsJrppYnFZ30xWf96TSwYs1THDoppdTpeBXIjSQt1r/JjhepKJwwo6uKznpQAwX/VsrdqvDkJQr3cNPvrkVKx+bKSY28DQEh00Aa+Zft7WkMb12WXYNWOVb6y8XUVGxeYsNsZiOAOrOxbN34Mv 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: List-Subscribe: List-Unsubscribe: From: Chi Zhiling folio_nr_pages() is faster helper function to get the number of pages when NR_PAGES_IN_LARGE_FOLIO is enabled. Signed-off-by: Chi Zhiling --- mm/readahead.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/readahead.c b/mm/readahead.c index 95a24f12d1e7..406756d34309 100644 --- a/mm/readahead.c +++ b/mm/readahead.c @@ -649,7 +649,7 @@ void page_cache_async_ra(struct readahead_control *ractl, * Ramp up sizes, and push forward the readahead window. */ expected = round_down(ra->start + ra->size - ra->async_size, - 1UL << folio_order(folio)); + folio_nr_pages(folio)); if (index == expected) { ra->start += ra->size; /* -- 2.43.0