From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pj1-f51.google.com (mail-pj1-f51.google.com [209.85.216.51]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 2D604BE49 for ; Fri, 1 Aug 2025 00:27:41 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.216.51 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1754008063; cv=none; b=BgeuOeDANoPg56VGgtjvBKw451dCO8d2RZX/bNhgj7v36AwaSXNAAZzJpso6VeoaIddtSoRq/MA6yB9mpfhZmJOsxl/MsDFFCs7SkvC+6T9nJ9DTycUUgP1Nw2z0XUM5QKV9kLzIDaF8a3YpCsMg5Y/6PMxBvhS1JFZpJXyJRkc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1754008063; c=relaxed/simple; bh=HIpv3/Qd6+bCTLMue6qgkGz5g7VjSzVmTADUJMVs0R0=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Kue98cTHczWWH3KNJEZBj32srajQIKtBSyF5UapIUygT8U30xWqf57eCqAGJTILBv/tKhZlcivhztz9uIvpNuJfRuSAHKWKbOE6FRiCQanqxFGDdeyZWkXMK1qhociunzHbamhGDS/LcKpabPBjkRnN3cruYPkUzaa7hxfwDOf8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=V2HGsK2D; arc=none smtp.client-ip=209.85.216.51 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="V2HGsK2D" Received: by mail-pj1-f51.google.com with SMTP id 98e67ed59e1d1-313a001d781so946387a91.3 for ; Thu, 31 Jul 2025 17:27:41 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1754008061; x=1754612861; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=6PfFH/5CksO26SsqXvAjBIPtqYbrdkRKJgAw7r8E6gs=; b=V2HGsK2DlsDZnLwdC+yOImL/vHy4qm7mtXnLLp0HDqRocGQzcFj3QHa2VazjdMqR+c mrYgM81Abs3ZGBQzhJvi+Pz8IrAjIX2NaHk8UN5o1nW6XosqBRQJcyS8Mgrz0BQRHcV5 CQOwCrtP/DkkThfMvEeBdW33/GgCiCDtlOyLzZj2ZJ5MfhzE0YKHirWRTycbKAcZyqU4 gMCuvP3fpU3cmNCX/msgAniDisE52OyKDOjuZv7f7AmTlTm7ftWuzHrX83jmagOIwCN7 Iree7DVsvx4QbwCTuzmYnyHKsCSP4fMF2YRusxU6cbO/agxFG8b7fdhdEc21EzpW4yXb SuOw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1754008061; x=1754612861; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=6PfFH/5CksO26SsqXvAjBIPtqYbrdkRKJgAw7r8E6gs=; b=nuK30RPuZB0eKfiIpHPmj3RYwoqw55zgMGk15j4rWV8Wrz8bOBDpNHIrxTdp7COdQn Tkhb1QEIyrXwMOFtDwzoYmWRx8jJ5N8xJrQSBJB+ElGf4aCgmtfRyCWM9VK9DcRb9Q5K jFR5CgCL01KDL0ZGNmTBmAJtKeC7HMJzYF4o/dfc/eQOYwt3LclRxpHTNqkiR6lrrxYg dG56aQ6W2csKWoRt8yX9IxfXxWsefuT0FrsKSt92QwJTQ1Z2iC+tzwLfC+ppnBZIboG6 DWQh002dM0XWUBGmPIOXjzHTnAtDm1KcZLXbCskQqezlrH6ieRDK3hyi0v2bV9S1Hfrb lEZA== X-Forwarded-Encrypted: i=1; AJvYcCUKvIJF4zHPlVJb6xf++VYXKnpYrc+/0lYckkeihZelP6ACWqDF+kS7lseiGknBpvmB40l8zpV+RCsTF2YA@vger.kernel.org X-Gm-Message-State: AOJu0YyS93CkNcp4F7gOv/iOKir6tmLIVZZ042xO7WzNejRqXHWrH7U2 aGNXUSOebe+bIPkjpM8fzB+WgTKTniVsLoBkJYKOREvt0+thAhyd79fU X-Gm-Gg: ASbGncuiE3e3Je3AA/f9hmww0t5gwBVKQ00HBkAxvH1JCIQ4yRmhteYkIASWzgXlmYv k6dMGA6AMXUz9tsS/yNc8xw6V7YZ+JxYH4CZWFecpWejTtZ+dh9+yeQm2D/LA2pAj7hXLbJOCfg 2vhMGBKYsb5ZDmjXhaT8UxVB3i0IAC6sKQnBiJXuRnGkIR/gFWnNQ7AB5iIZBDPXwoz4sAlQiA1 eBmLTBLcgijfaNXh0hdcZER1eR0PjnV6ATOFu4W6R2H5ZAkIaAd5cdWRgviYZdrJoeO8auL73Uw 4iGj0zmZlm8778l+LdqGAGBOMx0aCgU2QiULYzJmEDvFr+EyeZHFcodlH4n/Dbdydd/EiAx1k90 ue7D/ZUOpFYA++MnX X-Google-Smtp-Source: AGHT+IFX9OKTc8E6IqQTZzYxWlAhFuyYeJjqwUvFOABkby4ARQ+mPLkz5IqLHTXHIkeZR7lsYZtWqA== X-Received: by 2002:a17:90b:1e09:b0:311:b413:f5e1 with SMTP id 98e67ed59e1d1-320fbf3dfb7mr1055555a91.32.1754008061258; Thu, 31 Jul 2025 17:27:41 -0700 (PDT) Received: from localhost ([2a03:2880:ff:4::]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-31f63da8fcfsm5855606a91.7.2025.07.31.17.27.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 31 Jul 2025 17:27:40 -0700 (PDT) From: Joanne Koong To: linux-mm@kvack.org, brauner@kernel.org Cc: willy@infradead.org, jack@suse.cz, hch@infradead.org, djwong@kernel.org, linux-fsdevel@vger.kernel.org, kernel-team@meta.com Subject: [RFC PATCH v1 03/10] mm: add folio_end_writeback_pages() helper Date: Thu, 31 Jul 2025 17:21:24 -0700 Message-ID: <20250801002131.255068-4-joannelkoong@gmail.com> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20250801002131.255068-1-joannelkoong@gmail.com> References: <20250801002131.255068-1-joannelkoong@gmail.com> Precedence: bulk X-Mailing-List: linux-fsdevel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Add folio_end_writeback_pages() which takes in the number of pages written back. Signed-off-by: Joanne Koong --- include/linux/pagemap.h | 1 + mm/filemap.c | 25 +++++++++++++++---------- 2 files changed, 16 insertions(+), 10 deletions(-) diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h index e63fbfbd5b0f..312209e0371a 100644 --- a/include/linux/pagemap.h +++ b/include/linux/pagemap.h @@ -1202,6 +1202,7 @@ void folio_wait_writeback(struct folio *folio); int folio_wait_writeback_killable(struct folio *folio); void end_page_writeback(struct page *page); void folio_end_writeback(struct folio *folio); +void folio_end_writeback_pages(struct folio *folio, long nr_pages); void folio_wait_stable(struct folio *folio); void __folio_mark_dirty(struct folio *folio, struct address_space *, int warn); void folio_account_cleaned(struct folio *folio, struct bdi_writeback *wb); diff --git a/mm/filemap.c b/mm/filemap.c index b69ba95746f0..1a292cff0803 100644 --- a/mm/filemap.c +++ b/mm/filemap.c @@ -1626,15 +1626,7 @@ static void filemap_end_dropbehind_write(struct folio *folio) } } -/** - * folio_end_writeback - End writeback against a folio. - * @folio: The folio. - * - * The folio must actually be under writeback. - * - * Context: May be called from process or interrupt context. - */ -void folio_end_writeback(struct folio *folio) +void folio_end_writeback_pages(struct folio *folio, long nr_pages) { VM_BUG_ON_FOLIO(!folio_test_writeback(folio), folio); @@ -1657,13 +1649,26 @@ void folio_end_writeback(struct folio *folio) * reused before the folio_wake_bit(). */ folio_get(folio); - if (__folio_end_writeback(folio, folio_nr_pages(folio))) + if (__folio_end_writeback(folio, nr_pages)) folio_wake_bit(folio, PG_writeback); filemap_end_dropbehind_write(folio); acct_reclaim_writeback(folio); folio_put(folio); } + +/** + * folio_end_writeback - End writeback against a folio. + * @folio: The folio. + * + * The folio must actually be under writeback. + * + * Context: May be called from process or interrupt context. + */ +void folio_end_writeback(struct folio *folio) +{ + folio_end_writeback_pages(folio, folio_nr_pages(folio)); +} EXPORT_SYMBOL(folio_end_writeback); /** -- 2.47.3