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Tue, 09 Sep 2025 15:48:29 +0800 From: Hu Song To: Vlastimil Babka , Andrew Morton Cc: Hu Song , Christoph Lameter , David Rientjes , Roman Gushchin , Harry Yoo , linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: [PATCH] mm/slub: Use folio_nr_pages() in __free_slab() Date: Tue, 9 Sep 2025 15:48:11 +0800 Message-Id: <20250909074812.599030-1-husong@kylinos.cn> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: A45B3A0003 X-Stat-Signature: msr9wsqas5op8yo8jpgpwno48nky1ozc X-Rspam-User: X-Rspamd-Server: rspam01 X-HE-Tag: 1757404119-889124 X-HE-Meta: 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 TwvEVwPB iOmlzMT5X5BeD/iG4ABE5kyqQMEXdxKkU6twEGvhCLm9H0zXXlrjTW/8+TyJYnP/gAki1Z45t/CD37+axTjBuDDdHlQ== 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: Use folio_nr_pages() helper instead of manual calculation (1 << order) for better code readability and maintainability. Signed-off-by: Hu Song --- mm/slub.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/slub.c b/mm/slub.c index d257141896c9..eba25461641a 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -2719,7 +2719,7 @@ static void __free_slab(struct kmem_cache *s, struct slab *slab) { struct folio *folio = slab_folio(slab); int order = folio_order(folio); - int pages = 1 << order; + int pages = folio_nr_pages(folio); __slab_clear_pfmemalloc(slab); folio->mapping = NULL; -- 2.25.1