From patchwork Tue Feb 13 09:37:12 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: 13554779 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 1E956537E3; Tue, 13 Feb 2024 09:38:07 +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=1707817089; cv=none; b=T/yHYKfrF7fDWoTpBPSsYl/0f3X0ruNxGYM/qXt35skuUko4woleCejFACYdQmAxwnR7DU9OvtILoUh+2E0/QHh1LL61DLw+9WtFGYHS4dN5MiBpIONcv5i49HCBDBsCZCn8N/6vhPV2sD2V5MHPFUEOQnVYo4zcgzdaemM6Ib4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707817089; c=relaxed/simple; bh=7g8Bs2Rmp6gOJnEQAVWC55gjo2MoxR/e102tY8njEUU=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=H91bQu7aYiYsZ8MQZxCLxm9FwAA7C3sO3uWKUU955vFwHSs3au6Sz3peoGNyhoHzZpIrY08x5pmKjI84rcQP30BnNLUczUwNyoRsQZzO1yaSR8fW6iGbcWNL22iD16dLD5Ph9uOOGXQSQOCPeE9QlYY8YqHJJXAU/D68t+w2B0M= 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=lAJKQkv8; 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="lAJKQkv8" Received: from smtp2.mailbox.org (smtp2.mailbox.org [10.196.197.2]) (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 4TYx8D3Xykz9t40; Tue, 13 Feb 2024 10:38:04 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=pankajraghav.com; s=MBO0001; t=1707817084; 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=+2ss5SlGBbWn5UCkRFfS2rrVeqSyvxI6jrmUJVBEXU4=; b=lAJKQkv8JFUfAalsowcHUM0qevPxPDym9zxQEdcsGZ1QD34oloukLEkuEh9wYi/vwk3vTz 88MWHR5ma60yh6fcF9kNUWOoPzhytLjV6Ujqkm3NEpqVKXssY+AJ7VmlsSzPHrbWqiHHA/ nnbX4EV4Fhls9o8I6ajQX4wDUiZx29RHWX8bCkX0wpri4sldWbDFrGm1ryQp5raRgie1qr Lqsie4oCOj0gEl5zUVTbX8ms0OBr8KlMQBHEY4+8qUfqB3zPYcRNxXNbTgt3YZGojnJJEv sgKHAUiic9WDKzyryMjZWH9/hR/YdqHkJvfMwSZBVuLypx3foevRXAeEudMk+A== 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 13/14] xfs: add an experimental CONFIG_XFS_LBS option Date: Tue, 13 Feb 2024 10:37:12 +0100 Message-ID: <20240213093713.1753368-14-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: Pankaj Raghav Add an experimental CONFIG_XFS_LBS option to enable LBS support in XFS. Retain the ASSERT for PAGE_SHIFT if CONFIG_XFS_LBS is not enabled. Signed-off-by: Pankaj Raghav Reviewed-by: Darrick J. Wong --- fs/xfs/Kconfig | 11 +++++++++++ fs/xfs/xfs_mount.c | 4 +++- 2 files changed, 14 insertions(+), 1 deletion(-) diff --git a/fs/xfs/Kconfig b/fs/xfs/Kconfig index 567fb37274d3..6b0db2f7dc13 100644 --- a/fs/xfs/Kconfig +++ b/fs/xfs/Kconfig @@ -216,3 +216,14 @@ config XFS_ASSERT_FATAL result in warnings. This behavior can be modified at runtime via sysfs. + +config XFS_LBS + bool "XFS large block size support (EXPERIMENTAL)" + depends on XFS_FS + help + Set Y to enable support for filesystem block size > system's + base page size. + + This feature is considered EXPERIMENTAL. Use with caution! + + If unsure, say N. diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c index bfbaaecaf668..596aa2cdefbc 100644 --- a/fs/xfs/xfs_mount.c +++ b/fs/xfs/xfs_mount.c @@ -131,11 +131,13 @@ xfs_sb_validate_fsb_count( xfs_sb_t *sbp, uint64_t nblocks) { - ASSERT(PAGE_SHIFT >= sbp->sb_blocklog); ASSERT(sbp->sb_blocklog >= BBSHIFT); unsigned long mapping_count; uint64_t bytes = nblocks << sbp->sb_blocklog; + if (!IS_ENABLED(CONFIG_XFS_LBS)) + ASSERT(PAGE_SHIFT >= sbp->sb_blocklog); + mapping_count = bytes >> PAGE_SHIFT; /* Limited by ULONG_MAX of page cache index */