From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from fanzine2.igalia.com (fanzine2.igalia.com [213.97.179.56]) (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 3F4BE3EBF03 for ; Wed, 18 Mar 2026 19:09:47 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=213.97.179.56 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773860991; cv=none; b=JUErDPcvNouG5yku6QuhdJoSWxNMPeFnytX/WwhM7sOLwaEDnesTmaXQW7yLev0Wnq/n5Hv/Qxao4LW+TFq7rIKOTQqMNh/o5CYnbWNJDDwlkVFPlreIVGnUWaUNCVP23uRGDGEQ6HPOHtQ0QLn1mJPgl33IvTlMvLnZ3vNkMSo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773860991; c=relaxed/simple; bh=0lspVpUBSriKGjYSyq4MTbkmeOTQepGqzyDuCYslwiI=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=hPoI0RGEfGFAXFxfgD+mEwiUe/FjHiJRZam5NcPPGoNSrTAdI/NZ7Uyz29zT8c699hcMm0SiZ02ZI1WjQLs7ck5+fINSrZ5vUOY9afoVeMKxsQR1RDlPN/2WFeec7XYttu2atms4jeIKngAov/wmOSErKKawJLnDr/5dnJ0K7dE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=igalia.com; spf=pass smtp.mailfrom=igalia.com; dkim=pass (2048-bit key) header.d=igalia.com header.i=@igalia.com header.b=PGFyI47g; arc=none smtp.client-ip=213.97.179.56 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=igalia.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=igalia.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=igalia.com header.i=@igalia.com header.b="PGFyI47g" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=igalia.com; s=20170329; h=Content-Transfer-Encoding:MIME-Version:Message-ID:Date:Subject: Cc:To:From:Sender:Reply-To:Content-Type:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: In-Reply-To:References:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=m0lXHU2lWcqrhkJQ99ARYJjJF2+Qcqk4dCFKUtuKU8M=; b=PGFyI47ggsVMStJB0225Z9/zCT jsrAgwI7gWlppPGrC/7q5UDXcgm6qxgTNim7bit7Co+RdTxblE67sg5cfbAxAdVHZUHowMzMLf9D9 jvoyLR0mxEuNfhbcGtm37Tp4nDwC2kKAP+JchHVSSzYaTc3wDZbGdnzkmNSjePibu80o266dyRBNV rFCsqGZrt+VaKR6ub5zjJPtDnfN4c5Ww7VhsqI4e+Bkf25szCet1HOPlFTvq7S4i4YZUwfkXrHk43 DgGf4d2GNVidQrAau8OaRqyKvlQM4seYAMCUdmKXQBeuvuh6hBxLO4R5EYNzMEEqnHkxerFSbBo0y yRz/U9jg==; Received: from [179.93.15.111] (helo=localhost) by fanzine2.igalia.com with esmtpsa (Cipher TLS1.3:ECDHE_SECP256R1__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim) id 1w2wH0-002x5O-Ca; Wed, 18 Mar 2026 20:09:42 +0100 From: "Guilherme G. Piccoli" To: linux-mm@kvack.org Cc: linux-kernel@vger.kernel.org, kernel-dev@igalia.com, kernel@gpiccoli.net, "Guilherme G. Piccoli" , Andrew Morton , Mike Rapoport , Steven Rostedt , SeongJae Park Subject: [PATCH v3 0/2] Small improvements to reserve_mem, 3rd attempt Date: Wed, 18 Mar 2026 15:56:31 -0300 Message-ID: <20260318190816.1811325-1-gpiccoli@igalia.com> X-Mailer: git-send-email 2.50.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Hi folks, this the 3rd iteration of this patchset. tl; dr: we are adding here error messages in case of failures when reserve_mem parameter is used, and also a debugfs file to show successful reservations, with name and size as passed in the cmdline. More details and history, please take a look at: V2: lore.kernel.org/r/20260304203300.1414286-2-gpiccoli@igalia.com/ V1: lore.kernel.org/r/20260217195816.861684-1-gpiccoli@igalia.com/ Special thanks to Mike and SJ for the reviews =) Thanks in advance for suggestions / reviews. Cheers, Guilherme G. Piccoli (2): mm/memblock: Print out errors on reserve_mem parser mm/memblock: Add reserve_mem debugfs info mm/memblock.c | 83 +++++++++++++++---- tools/testing/memblock/linux/string_helpers.h | 10 +++ 2 files changed, 76 insertions(+), 17 deletions(-) create mode 100644 tools/testing/memblock/linux/string_helpers.h -- 2.50.1