From patchwork Mon Mar 19 07:31:50 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Misono Tomohiro X-Patchwork-Id: 10291757 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 8B6AE602C2 for ; Mon, 19 Mar 2018 07:32:06 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 7122C29163 for ; Mon, 19 Mar 2018 07:32:06 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 65DD32917D; Mon, 19 Mar 2018 07:32:06 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id C40F029163 for ; Mon, 19 Mar 2018 07:32:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755349AbeCSHcE (ORCPT ); Mon, 19 Mar 2018 03:32:04 -0400 Received: from mgwkm03.jp.fujitsu.com ([202.219.69.170]:42591 "EHLO mgwkm03.jp.fujitsu.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754511AbeCSHb7 (ORCPT ); Mon, 19 Mar 2018 03:31:59 -0400 Received: from kw-mxq.gw.nic.fujitsu.com (unknown [192.168.231.130]) by mgwkm03.jp.fujitsu.com with smtp id 4f15_3629_5fb10973_1701_4c90_ad90_310bdf79904c; Mon, 19 Mar 2018 16:31:53 +0900 Received: from g01jpfmpwkw03.exch.g01.fujitsu.local (g01jpfmpwkw03.exch.g01.fujitsu.local [10.0.193.57]) by kw-mxq.gw.nic.fujitsu.com (Postfix) with ESMTP id 943A8AC005E for ; Mon, 19 Mar 2018 16:31:53 +0900 (JST) Received: from g01jpexchkw38.g01.fujitsu.local (unknown [10.0.193.4]) by g01jpfmpwkw03.exch.g01.fujitsu.local (Postfix) with ESMTP id C3B8CBD645A for ; Mon, 19 Mar 2018 16:31:52 +0900 (JST) X-SecurityPolicyCheck: OK by SHieldMailChecker v2.5.2 X-SHieldMailCheckerPolicyVersion: FJ-ISEC-20170217-enc X-SHieldMailCheckerMailID: ef2c209b840446b2b3f479f0d9b27f00 Subject: [RFC PATCH v3 3/7] btrfs-progs: sub list: Pass specified path down to btrfs_list_subvols() From: "Misono, Tomohiro" To: linux-btrfs References: Message-ID: <034584df-63c2-42f8-54ea-6490dc69a44a@jp.fujitsu.com> Date: Mon, 19 Mar 2018 16:31:50 +0900 User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.6.0 MIME-Version: 1.0 In-Reply-To: Content-Language: en-US X-SecurityPolicyCheck-GC: OK by FENCE-Mail X-TM-AS-MML: disable Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP This is a preparetion work to allow normal user to call "subvolume list/show". Signed-off-by: Tomohiro Misono --- btrfs-list.c | 16 +++++++++------- btrfs-list.h | 7 ++++--- cmds-subvolume.c | 6 +++--- utils.c | 10 +++++----- 4 files changed, 21 insertions(+), 18 deletions(-) diff --git a/btrfs-list.c b/btrfs-list.c index 50e5ce5f..833ff912 100644 --- a/btrfs-list.c +++ b/btrfs-list.c @@ -1489,7 +1489,8 @@ next: } } -static int btrfs_list_subvols(int fd, struct root_lookup *root_lookup) +static int btrfs_list_subvols(int fd, struct root_lookup *root_lookup, + const char *path) { int ret; @@ -1510,7 +1511,7 @@ static int btrfs_list_subvols(int fd, struct root_lookup *root_lookup) int btrfs_list_subvols_print(int fd, struct btrfs_list_filter_set *filter_set, struct btrfs_list_comparer_set *comp_set, enum btrfs_list_layout layout, int full_path, - const char *raw_prefix) + const char *raw_prefix, const char *path) { struct root_lookup root_lookup; struct root_lookup root_sort; @@ -1522,7 +1523,7 @@ int btrfs_list_subvols_print(int fd, struct btrfs_list_filter_set *filter_set, if (ret) return ret; - ret = btrfs_list_subvols(fd, &root_lookup); + ret = btrfs_list_subvols(fd, &root_lookup, path); if (ret) { rb_free_nodes(&root_lookup.root, free_root_info); return ret; @@ -1543,7 +1544,8 @@ static char *strdup_or_null(const char *s) return strdup(s); } -int btrfs_get_toplevel_subvol(int fd, struct root_info *the_ri) +int btrfs_get_toplevel_subvol(int fd, struct root_info *the_ri, + const char *path) { int ret; struct root_lookup rl; @@ -1555,7 +1557,7 @@ int btrfs_get_toplevel_subvol(int fd, struct root_info *the_ri) if (ret) return ret; - ret = btrfs_list_subvols(fd, &rl); + ret = btrfs_list_subvols(fd, &rl, path); if (ret) { rb_free_nodes(&rl.root, free_root_info); return ret; @@ -1578,7 +1580,7 @@ int btrfs_get_toplevel_subvol(int fd, struct root_info *the_ri) return ret; } -int btrfs_get_subvol(int fd, struct root_info *the_ri) +int btrfs_get_subvol(int fd, struct root_info *the_ri, const char *path) { int ret, rr; struct root_lookup rl; @@ -1590,7 +1592,7 @@ int btrfs_get_subvol(int fd, struct root_info *the_ri) if (ret) return ret; - ret = btrfs_list_subvols(fd, &rl); + ret = btrfs_list_subvols(fd, &rl, path); if (ret) { rb_free_nodes(&rl.root, free_root_info); return ret; diff --git a/btrfs-list.h b/btrfs-list.h index 6e5fc778..9b6720e6 100644 --- a/btrfs-list.h +++ b/btrfs-list.h @@ -169,12 +169,13 @@ struct btrfs_list_comparer_set *btrfs_list_alloc_comparer_set(void); int btrfs_list_subvols_print(int fd, struct btrfs_list_filter_set *filter_set, struct btrfs_list_comparer_set *comp_set, enum btrfs_list_layout layot, int full_path, - const char *raw_prefix); + const char *raw_prefix, const char *path); int btrfs_list_find_updated_files(int fd, u64 root_id, u64 oldest_gen); int btrfs_list_get_default_subvolume(int fd, u64 *default_id); char *btrfs_list_path_for_root(int fd, u64 root); int btrfs_list_get_path_rootid(int fd, u64 *treeid); -int btrfs_get_subvol(int fd, struct root_info *the_ri); -int btrfs_get_toplevel_subvol(int fd, struct root_info *the_ri); +int btrfs_get_subvol(int fd, struct root_info *the_ri, const char *path); +int btrfs_get_toplevel_subvol(int fd, struct root_info *the_ri, + const char *path); #endif diff --git a/cmds-subvolume.c b/cmds-subvolume.c index 8a473f7a..faa10c5a 100644 --- a/cmds-subvolume.c +++ b/cmds-subvolume.c @@ -620,7 +620,7 @@ static int cmd_subvol_list(int argc, char **argv) btrfs_list_setup_print_column(BTRFS_LIST_PATH); ret = btrfs_list_subvols_print(fd, filter_set, comparer_set, - layout, !is_list_all && !is_only_in_path, NULL); + layout, !is_list_all && !is_only_in_path, NULL, subvol); out: close_file_or_dir(fd, dirstream); @@ -844,7 +844,7 @@ static int cmd_subvol_get_default(int argc, char **argv) btrfs_list_setup_print_column(BTRFS_LIST_PATH); ret = btrfs_list_subvols_print(fd, filter_set, NULL, - BTRFS_LIST_LAYOUT_DEFAULT, 1, NULL); + BTRFS_LIST_LAYOUT_DEFAULT, 1, NULL, subvol); if (filter_set) free(filter_set); @@ -1110,7 +1110,7 @@ static int cmd_subvol_show(int argc, char **argv) goto out; } btrfs_list_subvols_print(fd, filter_set, NULL, BTRFS_LIST_LAYOUT_RAW, - 1, raw_prefix); + 1, raw_prefix, fullpath); out: /* clean up */ diff --git a/utils.c b/utils.c index e9cb3a82..81c54faa 100644 --- a/utils.c +++ b/utils.c @@ -2542,9 +2542,9 @@ int get_subvol_info(const char *fullpath, struct root_info *get_ri) get_ri->root_id = sv_id; if (sv_id == BTRFS_FS_TREE_OBJECTID) - ret = btrfs_get_toplevel_subvol(mntfd, get_ri); + ret = btrfs_get_toplevel_subvol(mntfd, get_ri, mnt); else - ret = btrfs_get_subvol(mntfd, get_ri); + ret = btrfs_get_subvol(mntfd, get_ri, mnt); if (ret) error("can't find '%s': %d", svpath, ret); @@ -2570,9 +2570,9 @@ int get_subvol_info_by_rootid(const char *mnt, struct root_info *get_ri, u64 r_i get_ri->root_id = r_id; if (r_id == BTRFS_FS_TREE_OBJECTID) - ret = btrfs_get_toplevel_subvol(fd, get_ri); + ret = btrfs_get_toplevel_subvol(fd, get_ri, mnt); else - ret = btrfs_get_subvol(fd, get_ri); + ret = btrfs_get_subvol(fd, get_ri, mnt); if (ret) error("can't find rootid '%llu' on '%s': %d", r_id, mnt, ret); @@ -2595,7 +2595,7 @@ int get_subvol_info_by_uuid(const char *mnt, struct root_info *get_ri, u8 *uuid_ memset(get_ri, 0, sizeof(*get_ri)); uuid_copy(get_ri->uuid, uuid_arg); - ret = btrfs_get_subvol(fd, get_ri); + ret = btrfs_get_subvol(fd, get_ri, mnt); if (ret) { char uuid_parsed[BTRFS_UUID_UNPARSED_SIZE]; uuid_unparse(uuid_arg, uuid_parsed);