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([2804:14c:5fc8:8033:c5aa:36f3:14cd:8995]) by smtp.googlemail.com with ESMTPSA id d9443c01a7336-28e8d128041sm65070625ad.37.2025.10.03.20.30.38 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 03 Oct 2025 20:30:40 -0700 (PDT) From: Pedro Demarchi Gomes To: Joerg Roedel , Will Deacon Cc: Robin Murphy , iommu@lists.linux.dev, linux-kernel@vger.kernel.org, Pedro Demarchi Gomes Subject: [PATCH] iommu/pages: use folio_nr_pages() instead of shift operation Date: Sat, 4 Oct 2025 00:23:51 -0300 Message-Id: <20251004032351.51150-1-pedrodemargomes@gmail.com> X-Mailer: git-send-email 2.39.5 Precedence: bulk X-Mailing-List: iommu@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit folio_nr_pages() is a faster helper function to get the number of pages when NR_PAGES_IN_LARGE_FOLIO is enabled. Signed-off-by: Pedro Demarchi Gomes --- drivers/iommu/iommu-pages.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iommu/iommu-pages.c b/drivers/iommu/iommu-pages.c index 238c09e5166b..3cb8fcc39066 100644 --- a/drivers/iommu/iommu-pages.c +++ b/drivers/iommu/iommu-pages.c @@ -80,7 +80,7 @@ EXPORT_SYMBOL_GPL(iommu_alloc_pages_node_sz); static void __iommu_free_desc(struct ioptdesc *iopt) { struct folio *folio = ioptdesc_folio(iopt); - const unsigned long pgcnt = 1UL << folio_order(folio); + const unsigned long pgcnt = folio_nr_pages(folio); mod_node_page_state(folio_pgdat(folio), NR_IOMMU_PAGES, -pgcnt); lruvec_stat_mod_folio(folio, NR_SECONDARY_PAGETABLE, -pgcnt); -- 2.39.5