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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0380DC43334 for ; Mon, 6 Jun 2022 20:41:37 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id ADAEC8D000F; Mon, 6 Jun 2022 16:41:31 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 9F1BB8D0012; Mon, 6 Jun 2022 16:41:31 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 0A1D08D0009; Mon, 6 Jun 2022 16:41:30 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0017.hostedemail.com [216.40.44.17]) by kanga.kvack.org (Postfix) with ESMTP id B99638D000C for ; Mon, 6 Jun 2022 16:41:30 -0400 (EDT) Received: from smtpin03.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay12.hostedemail.com (Postfix) with ESMTP id 9D57A120B49 for ; Mon, 6 Jun 2022 20:41:30 +0000 (UTC) X-FDA: 79548981540.03.6E2CDCC Received: from casper.infradead.org (casper.infradead.org [90.155.50.34]) by imf01.hostedemail.com (Postfix) with ESMTP id 182954000D; Mon, 6 Jun 2022 20:41:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To: Content-Type:Content-ID:Content-Description; bh=PTb1fSw49y2qxNUUq4k5t2uIOYf1rKQU0qM36b/uqdM=; b=moAsLc7xAe9cCO2yLS/2VDmHEw YBwWTVJr9kJRjwoeFhsNnd8JLuuJjbq0xBtc3hJNd0koz0AzNRiu2y+N5Os1g1/u53LaRvxXW4rdM tHwy5XlETEs430Lov51yIttD+nu/AmMuCt1+6O5d08aKIMBYPTBY0Yt54xqFYELLNo0/O6twSwDnU wa3c1U/y/ETekmwC5gKHpa1nMck5VNxLTjucI7KCgMp9l5cOztmW0nCXmpkBfBeAli7aijjbj7GhC zHPVo0ax+4QE/HagbZZ6pGGOB2yVWmyQYd5p+40+xWsAl8Ab1eGJlEDyjqzfn+/+j35DgUlM4Y7a4 FS4d0iCw==; Received: from willy by casper.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux)) id 1nyJWw-00B19S-UW; Mon, 06 Jun 2022 20:40:54 +0000 From: "Matthew Wilcox (Oracle)" To: linux-fsdevel@vger.kernel.org Cc: "Matthew Wilcox (Oracle)" , linux-kernel@vger.kernel.org, linux-block@vger.kernel.org, linux-aio@kvack.org, linux-btrfs@vger.kernel.org, linux-ext4@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, cluster-devel@redhat.com, linux-mm@kvack.org, linux-xfs@vger.kernel.org, linux-nfs@vger.kernel.org, linux-ntfs-dev@lists.sourceforge.net, ocfs2-devel@oss.oracle.com, linux-mtd@lists.infradead.org, virtualization@lists.linux-foundation.org Subject: [PATCH 05/20] mm/migrate: Convert expected_page_refs() to folio_expected_refs() Date: Mon, 6 Jun 2022 21:40:35 +0100 Message-Id: <20220606204050.2625949-6-willy@infradead.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20220606204050.2625949-1-willy@infradead.org> References: <20220606204050.2625949-1-willy@infradead.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Authentication-Results: imf01.hostedemail.com; dkim=pass header.d=infradead.org header.s=casper.20170209 header.b=moAsLc7x; dmarc=none; spf=none (imf01.hostedemail.com: domain of willy@infradead.org has no SPF policy when checking 90.155.50.34) smtp.mailfrom=willy@infradead.org X-Stat-Signature: kjej6dtwmsbdggneczzff8hp8rzht6y5 X-Rspam-User: X-Rspamd-Server: rspam05 X-Rspamd-Queue-Id: 182954000D X-HE-Tag: 1654548079-165987 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: Now that both callers have a folio, convert this function to take a folio & rename it. Signed-off-by: Matthew Wilcox (Oracle) --- mm/migrate.c | 19 ++++++++++++------- 1 file changed, 12 insertions(+), 7 deletions(-) diff --git a/mm/migrate.c b/mm/migrate.c index 77b8c662c9ca..e0a593e5b5f9 100644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -337,13 +337,18 @@ void pmd_migration_entry_wait(struct mm_struct *mm, pmd_t *pmd) } #endif -static int expected_page_refs(struct address_space *mapping, struct page *page) +static int folio_expected_refs(struct address_space *mapping, + struct folio *folio) { - int expected_count = 1; + int refs = 1; + if (!mapping) + return refs; - if (mapping) - expected_count += compound_nr(page) + page_has_private(page); - return expected_count; + refs += folio_nr_pages(folio); + if (folio_get_private(folio)) + refs++; + + return refs;; } /* @@ -360,7 +365,7 @@ int folio_migrate_mapping(struct address_space *mapping, XA_STATE(xas, &mapping->i_pages, folio_index(folio)); struct zone *oldzone, *newzone; int dirty; - int expected_count = expected_page_refs(mapping, &folio->page) + extra_count; + int expected_count = folio_expected_refs(mapping, folio) + extra_count; long nr = folio_nr_pages(folio); if (!mapping) { @@ -670,7 +675,7 @@ static int __buffer_migrate_folio(struct address_space *mapping, return migrate_page(mapping, &dst->page, &src->page, mode); /* Check whether page does not have extra refs before we do more work */ - expected_count = expected_page_refs(mapping, &src->page); + expected_count = folio_expected_refs(mapping, src); if (folio_ref_count(src) != expected_count) return -EAGAIN; -- 2.35.1