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Received: from willy by casper.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux)) id 1pcJTO-00DYDg-CJ; Wed, 15 Mar 2023 05:14:50 +0000 From: "Matthew Wilcox (Oracle)" To: linux-arch@vger.kernel.org Cc: "Matthew Wilcox (Oracle)" , linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: [PATCH v4 32/36] mm: Use flush_icache_pages() in do_set_pmd() Date: Wed, 15 Mar 2023 05:14:40 +0000 Message-Id: <20230315051444.3229621-33-willy@infradead.org> X-Mailer: git-send-email 2.37.1 In-Reply-To: <20230315051444.3229621-1-willy@infradead.org> References: <20230315051444.3229621-1-willy@infradead.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: E8B181A0008 X-Rspamd-Server: rspam09 X-Rspam-User: X-Stat-Signature: 7qu4ue348797dqwb1zz77hs9b5inumii X-HE-Tag: 1678857299-555486 X-HE-Meta: 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 ggXVMAAy P7YzCaO5Rff5Q+A2+lulRqhB5QF4BgtL7Utw0JAQ7UOW6CGmyrx65P94yorLlbEd/xojV8QTKyypC+jbQftyt/4tuvE0mlx+ZzH6KyRKza4O1DkfoOZcbDjwj1f4a7sEjOvTMoCt5EBkoMBeo/IeoGgiuki5IOSOWqoKSnqgj+LXF4xvlwoMrna8Q0IApP7fcBKsl8kPQi553OQZYqRepDrR+yKQBJlGEp4eZ030KmLFsxxSjvQ8u9ZVvH3AT/LqOA8OwxQTLebcaw3jtYitjzoYUCQ== 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: Push the iteration over each page down to the architectures (many can flush the entire THP without iteration). Signed-off-by: Matthew Wilcox (Oracle) --- mm/memory.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/mm/memory.c b/mm/memory.c index c5f1bf906d0c..6aa21e8f3753 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -4209,7 +4209,6 @@ vm_fault_t do_set_pmd(struct vm_fault *vmf, struct page *page) bool write = vmf->flags & FAULT_FLAG_WRITE; unsigned long haddr = vmf->address & HPAGE_PMD_MASK; pmd_t entry; - int i; vm_fault_t ret = VM_FAULT_FALLBACK; if (!transhuge_vma_suitable(vma, haddr)) @@ -4242,8 +4241,7 @@ vm_fault_t do_set_pmd(struct vm_fault *vmf, struct page *page) if (unlikely(!pmd_none(*vmf->pmd))) goto out; - for (i = 0; i < HPAGE_PMD_NR; i++) - flush_icache_page(vma, page + i); + flush_icache_pages(vma, page, HPAGE_PMD_NR); entry = mk_huge_pmd(page, vma->vm_page_prot); if (write) -- 2.39.2