diff mbox series

[03/18] mm: userfaultfd: use mm_counter_folio()

Message ID	20231103140119.2306578-4-wangkefeng.wang@huawei.com
State	New
Headers	Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.37 as permitted sender) client-ip=23.128.96.37; From: Kefeng Wang <wangkefeng.wang@huawei.com> To: Andrew Morton <akpm@linux-foundation.org> CC: <linux-kernel@vger.kernel.org>, <linux-mm@kvack.org>, Matthew Wilcox <willy@infradead.org>, David Hildenbrand <david@redhat.com>, <linux-s390@vger.kernel.org>, Kefeng Wang <wangkefeng.wang@huawei.com> Subject: [PATCH 03/18] mm: userfaultfd: use mm_counter_folio() Date: Fri, 3 Nov 2023 22:01:04 +0800 Message-ID: <20231103140119.2306578-4-wangkefeng.wang@huawei.com> In-Reply-To: <20231103140119.2306578-1-wangkefeng.wang@huawei.com> References: <20231103140119.2306578-1-wangkefeng.wang@huawei.com> MIME-Version: 1.0 Content-Transfer-Encoding: 7BIT Content-Type: text/plain; charset=US-ASCII Precedence: bulk
Series	mm: convert to use folio mm counter \| [rfc,00/18] mm: convert to use folio mm counter [01/18] mm: add mm_counter_folio() and mm_counter_file_folio() [02/18] uprobes: use mm_counter_file_folio() [03/18] mm: userfaultfd: use mm_counter_folio() [04/18] mm: rmap: use mm_counter_[file]_folio() [06/18] mm: huge_memory: use a folio in __split_huge_pmd_locked() [07/18] mm: huge_memory: use a folio in zap_huge_pmd() [08/18] mm: khugepaged: use mm_counter_file_folio() in collapse_pte_mapped_thp() [09/18] mm: memory: use a folio in do_set_pmd() [10/18] mm: memory: use mm_counter_file_folio() in copy_present_pte() [11/18] mm: memory: use mm_counter_file_folio() in wp_page_copy() [12/18] mm: memory: use mm_counter_file_folio() in set_pte_range() [13/18] mm: memory: use a folio in insert_page_into_pte_locked() [14/18] mm: remove mm_counter_file() [15/18] mm: memory: use a folio in copy_nonpresent_pte() [16/18] mm: use a folio in zap_pte_range() [17/18] s390: pgtable: use mm_counter_folio() in ptep_zap_swap_entry() [18/18] mm: remove mm_counter()

Commit Message

Kefeng Wang Nov. 3, 2023, 2:01 p.m. UTC

  Use mm_counter_folio() to save one compound_head() call.

Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
---
 mm/userfaultfd.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff mbox series

Patch

diff --git a/mm/userfaultfd.c b/mm/userfaultfd.c
index 96d9eae5c7cc..e47aa6c91ef8 100644
--- a/mm/userfaultfd.c
+++ b/mm/userfaultfd.c
@@ -121,10 +121,10 @@  int mfill_atomic_install_pte(pmd_t *dst_pmd,
 	}
 
 	/*
-	 * Must happen after rmap, as mm_counter() checks mapping (via
+	 * Must happen after rmap, as mm_counter_folio() checks mapping (via
 	 * PageAnon()), which is set by __page_set_anon_rmap().
 	 */
-	inc_mm_counter(dst_mm, mm_counter(page));
+	inc_mm_counter(dst_mm, mm_counter_folio(folio));
 
 	set_pte_at(dst_mm, dst_addr, dst_pte, _dst_pte);