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 5BB17EB64DC for ; Wed, 21 Jun 2023 20:15:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229453AbjFUUPC (ORCPT ); Wed, 21 Jun 2023 16:15:02 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48152 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230474AbjFUUOn (ORCPT ); Wed, 21 Jun 2023 16:14:43 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2D5F61BD1 for ; Wed, 21 Jun 2023 13:14:30 -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 6F40B616C0 for ; Wed, 21 Jun 2023 20:14:30 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id C6729C433C8; Wed, 21 Jun 2023 20:14:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1687378469; bh=mEbKRH3rqS6FtC6XLIaNV9SzVaFDczncFmNTmIm/Rf4=; h=Date:To:From:Subject:From; b=N9aXSmq8deVQR0X/NAZ2M8/enIW4ymR0K81D0XL2uynsQZO1Z1q4k4pzTH00zHu9p oc7fQPGFZECYc8Q4UOCP0uhTyvGl/c4DL8qeBMAfOfmni2MDi4BzXPBFznbZFxcIYO BxT9rbVkGnbyVgtRnBCxp9WUQh4axUxAemRWCCKE= Date: Wed, 21 Jun 2023 13:14:29 -0700 To: mm-commits@vger.kernel.org, willy@infradead.org, akpm@linux-foundation.org From: Andrew Morton Subject: + mm-rename-invalidate_mapping_pagevec-to-mapping_try_invalidate.patch added to mm-unstable branch Message-Id: <20230621201429.C6729C433C8@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: mm: rename invalidate_mapping_pagevec to mapping_try_invalidate has been added to the -mm mm-unstable branch. Its filename is mm-rename-invalidate_mapping_pagevec-to-mapping_try_invalidate.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-rename-invalidate_mapping_pagevec-to-mapping_try_invalidate.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: mm: rename invalidate_mapping_pagevec to mapping_try_invalidate Date: Wed, 21 Jun 2023 17:45:55 +0100 We don't use pagevecs for the LRU cache any more, and we don't know that the failed invalidations were due to the folio being in an LRU cache. So rename it to be more accurate. Link: https://lkml.kernel.org/r/20230621164557.3510324-12-willy@infradead.org Signed-off-by: Matthew Wilcox (Oracle) Signed-off-by: Andrew Morton --- mm/fadvise.c | 16 +++++++--------- mm/internal.h | 4 ++-- mm/truncate.c | 25 ++++++++++++------------- 3 files changed, 21 insertions(+), 24 deletions(-) --- a/mm/fadvise.c~mm-rename-invalidate_mapping_pagevec-to-mapping_try_invalidate +++ a/mm/fadvise.c @@ -143,7 +143,7 @@ int generic_fadvise(struct file *file, l } if (end_index >= start_index) { - unsigned long nr_pagevec = 0; + unsigned long nr_failed = 0; /* * It's common to FADV_DONTNEED right after @@ -156,17 +156,15 @@ int generic_fadvise(struct file *file, l */ lru_add_drain(); - invalidate_mapping_pagevec(mapping, - start_index, end_index, - &nr_pagevec); + mapping_try_invalidate(mapping, start_index, end_index, + &nr_failed); /* - * If fewer pages were invalidated than expected then - * it is possible that some of the pages were on - * a per-cpu pagevec for a remote CPU. Drain all - * pagevecs and try again. + * The failures may be due to the folio being + * in the LRU cache of a remote CPU. Drain all + * caches and try again. */ - if (nr_pagevec) { + if (nr_failed) { lru_add_drain_all(); invalidate_mapping_pages(mapping, start_index, end_index); --- a/mm/internal.h~mm-rename-invalidate_mapping_pagevec-to-mapping_try_invalidate +++ a/mm/internal.h @@ -133,8 +133,8 @@ int truncate_inode_folio(struct address_ bool truncate_inode_partial_folio(struct folio *folio, loff_t start, loff_t end); long invalidate_inode_page(struct page *page); -unsigned long invalidate_mapping_pagevec(struct address_space *mapping, - pgoff_t start, pgoff_t end, unsigned long *nr_pagevec); +unsigned long mapping_try_invalidate(struct address_space *mapping, + pgoff_t start, pgoff_t end, unsigned long *nr_failed); /** * folio_evictable - Test whether a folio is evictable. --- a/mm/truncate.c~mm-rename-invalidate_mapping_pagevec-to-mapping_try_invalidate +++ a/mm/truncate.c @@ -486,18 +486,17 @@ void truncate_inode_pages_final(struct a EXPORT_SYMBOL(truncate_inode_pages_final); /** - * invalidate_mapping_pagevec - Invalidate all the unlocked pages of one inode - * @mapping: the address_space which holds the pages to invalidate + * mapping_try_invalidate - Invalidate all the evictable folios of one inode + * @mapping: the address_space which holds the folios to invalidate * @start: the offset 'from' which to invalidate * @end: the offset 'to' which to invalidate (inclusive) - * @nr_pagevec: invalidate failed page number for caller + * @nr_failed: How many folio invalidations failed * - * This helper is similar to invalidate_mapping_pages(), except that it accounts - * for pages that are likely on a pagevec and counts them in @nr_pagevec, which - * will be used by the caller. + * This function is similar to invalidate_mapping_pages(), except that it + * returns the number of folios which could not be evicted in @nr_failed. */ -unsigned long invalidate_mapping_pagevec(struct address_space *mapping, - pgoff_t start, pgoff_t end, unsigned long *nr_pagevec) +unsigned long mapping_try_invalidate(struct address_space *mapping, + pgoff_t start, pgoff_t end, unsigned long *nr_failed) { pgoff_t indices[PAGEVEC_SIZE]; struct folio_batch fbatch; @@ -527,9 +526,9 @@ unsigned long invalidate_mapping_pagevec */ if (!ret) { deactivate_file_folio(folio); - /* It is likely on the pagevec of a remote CPU */ - if (nr_pagevec) - (*nr_pagevec)++; + /* Likely in the lru cache of a remote CPU */ + if (nr_failed) + (*nr_failed)++; } count += ret; } @@ -552,12 +551,12 @@ unsigned long invalidate_mapping_pagevec * If you want to remove all the pages of one inode, regardless of * their use and writeback state, use truncate_inode_pages(). * - * Return: the number of the cache entries that were invalidated + * Return: The number of indices that had their contents invalidated */ unsigned long invalidate_mapping_pages(struct address_space *mapping, pgoff_t start, pgoff_t end) { - return invalidate_mapping_pagevec(mapping, start, end, NULL); + return mapping_try_invalidate(mapping, start, end, NULL); } EXPORT_SYMBOL(invalidate_mapping_pages); _ Patches currently in -mm which might be from willy@infradead.org are afs-convert-pagevec-to-folio_batch-in-afs_extend_writeback.patch mm-add-__folio_batch_release.patch scatterlist-add-sg_set_folio.patch i915-convert-shmem_sg_free_table-to-use-a-folio_batch.patch drm-convert-drm_gem_put_pages-to-use-a-folio_batch.patch mm-remove-check_move_unevictable_pages.patch pagevec-rename-fbatch_count.patch i915-convert-i915_gpu_error-to-use-a-folio_batch.patch net-convert-sunrpc-from-pagevec-to-folio_batch.patch mm-remove-struct-pagevec.patch mm-rename-invalidate_mapping_pagevec-to-mapping_try_invalidate.patch mm-remove-references-to-pagevec.patch mm-remove-unnecessary-pagevec-includes.patch