[PATCH v6 33/38] mm: Use flush_icache_pages() in do_set_pmd()
From: "Matthew Wilcox (Oracle)" <willy@infradead.org>
Date: 2023-08-02 15:16:13
Also in:
linux-mm, lkml
Subsystem:
memory management, memory management - core, the rest · Maintainers:
Andrew Morton, David Hildenbrand, Linus Torvalds
Push the iteration over each page down to the architectures (many can flush the entire THP without iteration). Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> Reviewed-by: Anshuman Khandual <redacted> --- mm/memory.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/mm/memory.c b/mm/memory.c
index 4e6e9ec7eaaf..e25edd4c24b8 100644
--- a/mm/memory.c
+++ b/mm/memory.c@@ -4400,7 +4400,6 @@ 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))
@@ -4433,8 +4432,7 @@ 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)
--
2.40.1