From patchwork Mon Nov 4 10:55:18 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ian Kent X-Patchwork-Id: 11225409 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 2D59415AB for ; Mon, 4 Nov 2019 10:55:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 15DAE21D7F for ; Mon, 4 Nov 2019 10:55:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728713AbfKDKzT (ORCPT ); Mon, 4 Nov 2019 05:55:19 -0500 Received: from icp-osb-irony-out4.external.iinet.net.au ([203.59.1.220]:34019 "EHLO icp-osb-irony-out4.external.iinet.net.au" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727985AbfKDKzT (ORCPT ); Mon, 4 Nov 2019 05:55:19 -0500 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A2CTAQC6AsBd/xK90HYNWRwBAQEBAQcBAREBBAQBAYF9hD2EKY9YAQEBAQEBBoERigmFMYRuhTyBZwkBAQEBAQEBAQE3AQGEOwMCAoQwOBMCDgEBAQQBAQEBAQUDAYVYhioCAQMjBFIQGA0CJgICRxAGE4V1sGJ1fzMaijOBDiiBZYpGeIEHgUSDHYQtgyiCXgSNQ4IAN4ZAQ5Z1gi6VUQyCMIt4AxCLHi2pfYF6TS4KgydQkX5njm0BAQ X-IPAS-Result: A2CTAQC6AsBd/xK90HYNWRwBAQEBAQcBAREBBAQBAYF9hD2EKY9YAQEBAQEBBoERigmFMYRuhTyBZwkBAQEBAQEBAQE3AQGEOwMCAoQwOBMCDgEBAQQBAQEBAQUDAYVYhioCAQMjBFIQGA0CJgICRxAGE4V1sGJ1fzMaijOBDiiBZYpGeIEHgUSDHYQtgyiCXgSNQ4IAN4ZAQ5Z1gi6VUQyCMIt4AxCLHi2pfYF6TS4KgydQkX5njm0BAQ X-IronPort-AV: E=Sophos;i="5.68,266,1569254400"; d="scan'208";a="207138672" Received: from unknown (HELO [192.168.1.222]) ([118.208.189.18]) by icp-osb-irony-out4.iinet.net.au with ESMTP; 04 Nov 2019 18:55:18 +0800 Subject: [PATCH v9 08/17] xfs: refactor suffix_kstrtoint() From: Ian Kent To: linux-xfs Cc: Christoph Hellwig , "Darrick J. Wong" , Brian Foster , Eric Sandeen , David Howells , Dave Chinner , Al Viro Date: Mon, 04 Nov 2019 18:55:18 +0800 Message-ID: <157286491808.18393.8705951673756927899.stgit@fedora-28> In-Reply-To: <157286480109.18393.6285224459642752559.stgit@fedora-28> References: <157286480109.18393.6285224459642752559.stgit@fedora-28> User-Agent: StGit/unknown-version MIME-Version: 1.0 Sender: linux-xfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-xfs@vger.kernel.org The mount-api doesn't have a "human unit" parse type yet so the options that have values like "10k" etc. still need to be converted by the fs. But the value comes to the fs as a string (not a substring_t type) so there's a need to change the conversion function to take a character string instead. When xfs is switched to use the new mount-api match_kstrtoint() will no longer be used and will be removed. Signed-off-by: Ian Kent Reviewed-by: Brian Foster Reviewed-by: Christoph Hellwig Reviewed-by: Darrick J. Wong --- fs/xfs/xfs_super.c | 38 +++++++++++++++++++++++++++++--------- 1 file changed, 29 insertions(+), 9 deletions(-) diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c index bdf6c069e3ea..0dc072700599 100644 --- a/fs/xfs/xfs_super.c +++ b/fs/xfs/xfs_super.c @@ -108,14 +108,17 @@ static const match_table_t tokens = { }; -STATIC int -suffix_kstrtoint(const substring_t *s, unsigned int base, int *res) +static int +suffix_kstrtoint( + const char *s, + unsigned int base, + int *res) { - int last, shift_left_factor = 0, _res; - char *value; - int ret = 0; + int last, shift_left_factor = 0, _res; + char *value; + int ret = 0; - value = match_strdup(s); + value = kstrdup(s, GFP_KERNEL); if (!value) return -ENOMEM; @@ -140,6 +143,23 @@ suffix_kstrtoint(const substring_t *s, unsigned int base, int *res) return ret; } +static int +match_kstrtoint( + const substring_t *s, + unsigned int base, + int *res) +{ + const char *value; + int ret; + + value = match_strdup(s); + if (!value) + return -ENOMEM; + ret = suffix_kstrtoint(value, base, res); + kfree(value); + return ret; +} + /* * This function fills in xfs_mount_t fields based on mount args. * Note: the superblock has _not_ yet been read in. @@ -151,7 +171,7 @@ suffix_kstrtoint(const substring_t *s, unsigned int base, int *res) * path, and we don't want this to have any side effects at remount time. * Today this function does not change *sb, but just to future-proof... */ -STATIC int +static int xfs_parseargs( struct xfs_mount *mp, char *options) @@ -194,7 +214,7 @@ xfs_parseargs( return -EINVAL; break; case Opt_logbsize: - if (suffix_kstrtoint(args, 10, &mp->m_logbsize)) + if (match_kstrtoint(args, 10, &mp->m_logbsize)) return -EINVAL; break; case Opt_logdev: @@ -210,7 +230,7 @@ xfs_parseargs( return -ENOMEM; break; case Opt_allocsize: - if (suffix_kstrtoint(args, 10, &size)) + if (match_kstrtoint(args, 10, &size)) return -EINVAL; mp->m_allocsize_log = ffs(size) - 1; mp->m_flags |= XFS_MOUNT_ALLOCSIZE;