From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6A95DC27C6D for ; Wed, 16 Aug 2023 22:43:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235748AbjHPWnQ (ORCPT ); Wed, 16 Aug 2023 18:43:16 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59526 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1346960AbjHPWnN (ORCPT ); Wed, 16 Aug 2023 18:43:13 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4D8ED173F for ; Wed, 16 Aug 2023 15:43:12 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id D3A14656B8 for ; Wed, 16 Aug 2023 22:43:11 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2DA04C433C8; Wed, 16 Aug 2023 22:43:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1692225791; bh=h0FZrggH6dQVh6alSi7GdGNccUPKa7R3R+N40BuxUxU=; h=Date:To:From:Subject:From; b=yIE3z3IQD7ECQgyT72gJ6r0xF4lWFhVKZk+j2CK2WdTGrIvuCralboWI0tm53ksrO OU5ph9GPi2PYjsqeiwCHUzNqF0sBYBUGla0Oz7gkaevXPDd7o+y8idhoQSsXl8t0up Eflt1S8TAehaDua95wkfR1OgzeRpfG1rgvZwHEb0= Date: Wed, 16 Aug 2023 15:43:10 -0700 To: mm-commits@vger.kernel.org, siyanteng@loongson.cn, sidhartha.kumar@oracle.com, david@redhat.com, axboe@kernel.dk, willy@infradead.org, akpm@linux-foundation.org From: Andrew Morton Subject: + io_uring-stop-calling-free_compound_page.patch added to mm-unstable branch Message-Id: <20230816224311.2DA04C433C8@smtp.kernel.org> Precedence: bulk Reply-To: linux-kernel@vger.kernel.org List-ID: X-Mailing-List: mm-commits@vger.kernel.org The patch titled Subject: io_uring: stop calling free_compound_page() has been added to the -mm mm-unstable branch. Its filename is io_uring-stop-calling-free_compound_page.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/io_uring-stop-calling-free_compound_page.patch This patch will later appear in the mm-unstable branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next via the mm-everything branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there every 2-3 working days ------------------------------------------------------ From: "Matthew Wilcox (Oracle)" Subject: io_uring: stop calling free_compound_page() Date: Wed, 16 Aug 2023 16:11:49 +0100 Patch series "Remove _folio_dtor and _folio_order", v2. This patch (of 13): folio_put() is the standard way to write this, and it's not appreciably slower. This is an enabling patch for removing free_compound_page() entirely. Link: https://lkml.kernel.org/r/20230816151201.3655946-1-willy@infradead.org Link: https://lkml.kernel.org/r/20230816151201.3655946-2-willy@infradead.org Signed-off-by: Matthew Wilcox (Oracle) Reviewed-by: David Hildenbrand Reviewed-by: Jens Axboe Cc: Sidhartha Kumar Cc: Yanteng Si Signed-off-by: Andrew Morton --- io_uring/io_uring.c | 6 +----- io_uring/kbuf.c | 6 +----- 2 files changed, 2 insertions(+), 10 deletions(-) --- a/io_uring/io_uring.c~io_uring-stop-calling-free_compound_page +++ a/io_uring/io_uring.c @@ -2643,14 +2643,10 @@ static int io_cqring_wait(struct io_ring static void io_mem_free(void *ptr) { - struct page *page; - if (!ptr) return; - page = virt_to_head_page(ptr); - if (put_page_testzero(page)) - free_compound_page(page); + folio_put(virt_to_folio(ptr)); } static void io_pages_free(struct page ***pages, int npages) --- a/io_uring/kbuf.c~io_uring-stop-calling-free_compound_page +++ a/io_uring/kbuf.c @@ -218,11 +218,7 @@ static int __io_remove_buffers(struct io if (bl->is_mapped) { i = bl->buf_ring->tail - bl->head; if (bl->is_mmap) { - struct page *page; - - page = virt_to_head_page(bl->buf_ring); - if (put_page_testzero(page)) - free_compound_page(page); + folio_put(virt_to_folio(bl->buf_ring)); bl->buf_ring = NULL; bl->is_mmap = 0; } else if (bl->buf_nr_pages) { _ Patches currently in -mm which might be from willy@infradead.org are mm-memoryc-fix-mismerge.patch mm-drop-per-vma-lock-when-returning-vm_fault_retry-or-vm_fault_completed-fix.patch zswap-make-zswap_store-take-a-folio.patch memcg-convert-get_obj_cgroup_from_page-to-get_obj_cgroup_from_folio.patch swap-remove-some-calls-to-compound_head-in-swap_readpage.patch zswap-make-zswap_load-take-a-folio.patch mm-improve-the-comment-in-isolate_migratepages_block.patch minmax-add-in_range-macro.patch mm-convert-page_table_check_pte_set-to-page_table_check_ptes_set.patch mm-add-generic-flush_icache_pages-and-documentation.patch mm-add-folio_flush_mapping.patch mm-remove-arch_implements_flush_dcache_folio.patch mm-add-default-definition-of-set_ptes.patch alpha-implement-the-new-page-table-range-api.patch arc-implement-the-new-page-table-range-api.patch arm-implement-the-new-page-table-range-api.patch arm64-implement-the-new-page-table-range-api.patch csky-implement-the-new-page-table-range-api.patch hexagon-implement-the-new-page-table-range-api.patch ia64-implement-the-new-page-table-range-api.patch ia64-implement-the-new-page-table-range-api-fix.patch loongarch-implement-the-new-page-table-range-api.patch m68k-implement-the-new-page-table-range-api.patch microblaze-implement-the-new-page-table-range-api.patch mips-implement-the-new-page-table-range-api.patch nios2-implement-the-new-page-table-range-api.patch openrisc-implement-the-new-page-table-range-api.patch parisc-implement-the-new-page-table-range-api.patch powerpc-implement-the-new-page-table-range-api.patch powerpc-implement-the-new-page-table-range-api-fix.patch riscv-implement-the-new-page-table-range-api.patch s390-implement-the-new-page-table-range-api.patch sh-implement-the-new-page-table-range-api.patch sparc32-implement-the-new-page-table-range-api.patch sparc64-implement-the-new-page-table-range-api.patch um-implement-the-new-page-table-range-api.patch x86-implement-the-new-page-table-range-api.patch xtensa-implement-the-new-page-table-range-api.patch mm-remove-page_mapping_file.patch mm-rationalise-flush_icache_pages-and-flush_icache_page.patch mm-tidy-up-set_ptes-definition.patch mm-use-flush_icache_pages-in-do_set_pmd.patch mm-call-update_mmu_cache_range-in-more-page-fault-handling-paths.patch mm-allow-fault_dirty_shared_page-to-be-called-under-the-vma-lock.patch io_uring-stop-calling-free_compound_page.patch mm-call-free_huge_page-directly.patch mm-convert-free_huge_page-to-free_huge_folio.patch mm-convert-free_transhuge_folio-to-folio_undo_large_rmappable.patch mm-convert-prep_transhuge_page-to-folio_prep_large_rmappable.patch mm-remove-free_compound_page-and-the-compound_page_dtors-array.patch mm-remove-hugetlb_page_dtor.patch mm-add-large_rmappable-page-flag.patch mm-rearrange-page-flags.patch mm-free-up-a-word-in-the-first-tail-page.patch mm-remove-folio_test_transhuge.patch mm-add-tail-private-fields-to-struct-folio.patch mm-convert-split_huge_pages_pid-to-use-a-folio.patch