From patchwork Tue Feb 13 09:37:03 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Pankaj Raghav (Samsung)" X-Patchwork-Id: 13554769 Received: from mout-p-201.mailbox.org (mout-p-201.mailbox.org [80.241.56.171]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 470AB2C692; Tue, 13 Feb 2024 09:37:37 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=80.241.56.171 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707817058; cv=none; b=a/1qoFFAQLdnapZTN26y54d632EWAgxvGcBc5+SEJR92vFQOiyPReYpPfR/DTaqC6CNhvzqnAgUMRQKAgKMiwON+im0FGMwD0pKsG5M119MtFHoUQd8lxSiD7aQ3Y2/l+3Sq4lUN4LCAW8hvMJ03GEWrY7A+muopKllweRrBdjE= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707817058; c=relaxed/simple; bh=0Ere+VznGanpb//IG2k8d2/r8RcDXiGlh6wtYwlnByw=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=n6mPkflCDYpY0fn8pIyelitDDwUvDPdtlGovRznC+ZNQL92QIMdbBfI9ZuQyVdfurnvFLvQF8viSLFLZFblMQpqdog1jVpTzAdkOV9f/EZfE5X2blzHqz2OnOftoX9JqMeTleMQVOgV1XAcXovtaBNu/33JwCyQ3L0C8iyIpxBY= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=pankajraghav.com; spf=pass smtp.mailfrom=pankajraghav.com; dkim=pass (2048-bit key) header.d=pankajraghav.com header.i=@pankajraghav.com header.b=uCtQvXEu; arc=none smtp.client-ip=80.241.56.171 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=pankajraghav.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=pankajraghav.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=pankajraghav.com header.i=@pankajraghav.com header.b="uCtQvXEu" Received: from smtp1.mailbox.org (smtp1.mailbox.org [10.196.197.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by mout-p-201.mailbox.org (Postfix) with ESMTPS id 4TYx7d50r9z9sTM; Tue, 13 Feb 2024 10:37:33 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=pankajraghav.com; s=MBO0001; t=1707817053; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=nJez9lFGKNHHqjTBT9OvccGI+MEPxelY3zNT/AM7wII=; b=uCtQvXEu+6KQlQCiuGw+WSyYea5LbyMcA82MG5gzxpXLndb1cSZu4/VRzPnge4R8I+K8Vv NZYcRK9/bHhRkukWeUhawuEyT7UQoBTZC6FyPTvux6qdgEkJRSaHWjRtW4ro1AkXkTAVYT b55DDYovZ7PBIf5u/a+N56W/LqXlxCoA8gdeOXImwC/a+P5TrtScQQAr9bWyzAu0aHAE4R +oYYuJSkshcJIBYSWUaP265Asnsqute1j4NgcbXErxl+PUNN63BcuLk2DfZLLQiC8PRKf/ C0JlKO3C/DVbujCqHYe28d3whLpp37YQNKOSWJP8AVdWPnpx2/mbjEOXTMKMFQ== From: "Pankaj Raghav (Samsung)" To: linux-xfs@vger.kernel.org, linux-fsdevel@vger.kernel.org Cc: mcgrof@kernel.org, gost.dev@samsung.com, akpm@linux-foundation.org, kbusch@kernel.org, djwong@kernel.org, chandan.babu@oracle.com, p.raghav@samsung.com, linux-kernel@vger.kernel.org, hare@suse.de, willy@infradead.org, linux-mm@kvack.org, david@fromorbit.com Subject: [RFC v2 04/14] readahead: set file_ra_state->ra_pages to be at least mapping_min_order Date: Tue, 13 Feb 2024 10:37:03 +0100 Message-ID: <20240213093713.1753368-5-kernel@pankajraghav.com> In-Reply-To: <20240213093713.1753368-1-kernel@pankajraghav.com> References: <20240213093713.1753368-1-kernel@pankajraghav.com> Precedence: bulk X-Mailing-List: linux-fsdevel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Luis Chamberlain Set the file_ra_state->ra_pages in file_ra_state_init() to be at least mapping_min_order of pages if the bdi->ra_pages is less than that. Signed-off-by: Luis Chamberlain Reviewed-by: Hannes Reinecke Acked-by: Darrick J. Wong --- mm/readahead.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/mm/readahead.c b/mm/readahead.c index 2648ec4f0494..4fa7d0e65706 100644 --- a/mm/readahead.c +++ b/mm/readahead.c @@ -138,7 +138,12 @@ void file_ra_state_init(struct file_ra_state *ra, struct address_space *mapping) { + unsigned int min_nrpages = mapping_min_folio_nrpages(mapping); + unsigned int max_pages = inode_to_bdi(mapping->host)->io_pages; + ra->ra_pages = inode_to_bdi(mapping->host)->ra_pages; + if (ra->ra_pages < min_nrpages && min_nrpages < max_pages) + ra->ra_pages = min_nrpages; ra->prev_pos = -1; } EXPORT_SYMBOL_GPL(file_ra_state_init);