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LU-80 utils: Large stripe support
[fs/lustre-release.git] / lustre / utils / lfs.c
index 1d034b2..2bc71a1 100644 (file)
@@ -1,28 +1,50 @@
 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
  * vim:expandtab:shiftwidth=8:tabstop=8:
  *
- *  Copyright (C) 2002 Cluster File Systems, Inc.
- *   Author: Peter J. Braam <braam@clusterfs.com>
- *   Author: Phil Schwan <phil@clusterfs.com>
- *   Author: Robert Read <rread@clusterfs.com>
+ * GPL HEADER START
  *
- *   This file is part of Lustre, http://www.lustre.org.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
- *   Lustre is free software; you can redistribute it and/or
- *   modify it under the terms of version 2 of the GNU General Public
- *   License as published by the Free Software Foundation.
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 only,
+ * as published by the Free Software Foundation.
  *
- *   Lustre is distributed in the hope that it will be useful,
- *   but WITHOUT ANY WARRANTY; without even the implied warranty of
- *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *   GNU General Public License for more details.
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License version 2 for more details (a copy is included
+ * in the LICENSE file that accompanied this code).
  *
- *   You should have received a copy of the GNU General Public License
- *   along with Lustre; if not, write to the Free Software
- *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * You should have received a copy of the GNU General Public License
+ * version 2 along with this program; If not, see
+ * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
  *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ * GPL HEADER END
+ */
+/*
+ * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Use is subject to license terms.
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ * Lustre is a trademark of Sun Microsystems, Inc.
+ *
+ * lustre/utils/lfs.c
+ *
+ * Author: Peter J. Braam <braam@clusterfs.com>
+ * Author: Phil Schwan <phil@clusterfs.com>
+ * Author: Robert Read <rread@clusterfs.com>
  */
 
+/* for O_DIRECTORY */
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE
+#endif
+
 #include <stdlib.h>
 #include <stdio.h>
 #include <getopt.h>
 #include <dirent.h>
 #include <time.h>
 #include <ctype.h>
+#ifdef HAVE_SYS_QUOTA_H
+# include <sys/quota.h>
+#endif
+
 /* For dirname() */
 #include <libgen.h>
 
@@ -47,8 +73,9 @@
 #include <lustre/lustre_idl.h>
 #include <lustre/liblustreapi.h>
 #include <lustre/lustre_user.h>
+#include <lustre_quota.h>
 
-#include "parser.h"
+#include <libcfs/libcfsutil.h>
 #include "obdctl.h"
 
 unsigned int libcfs_subsystem_debug = 0;
@@ -59,15 +86,17 @@ static int lfs_find(int argc, char **argv);
 static int lfs_getstripe(int argc, char **argv);
 static int lfs_osts(int argc, char **argv);
 static int lfs_df(int argc, char **argv);
+static int lfs_getname(int argc, char **argv);
 static int lfs_check(int argc, char **argv);
 static int lfs_catinfo(int argc, char **argv);
-#ifdef HAVE_QUOTA_SUPPORT
+#ifdef HAVE_SYS_QUOTA_H
 static int lfs_quotachown(int argc, char **argv);
 static int lfs_quotacheck(int argc, char **argv);
 static int lfs_quotaon(int argc, char **argv);
 static int lfs_quotaoff(int argc, char **argv);
 static int lfs_setquota(int argc, char **argv);
 static int lfs_quota(int argc, char **argv);
+static int lfs_quotainv(int argc, char **argv);
 #endif
 static int lfs_flushctx(int argc, char **argv);
 static int lfs_join(int argc, char **argv);
@@ -77,6 +106,11 @@ static int lfs_rsetfacl(int argc, char **argv);
 static int lfs_rgetfacl(int argc, char **argv);
 static int lfs_cp(int argc, char **argv);
 static int lfs_ls(int argc, char **argv);
+static int lfs_poollist(int argc, char **argv);
+static int lfs_changelog(int argc, char **argv);
+static int lfs_changelog_clear(int argc, char **argv);
+static int lfs_fid2path(int argc, char **argv);
+static int lfs_path2fid(int argc, char **argv);
 
 /* all avaialable commands */
 command_t cmdlist[] = {
@@ -84,30 +118,37 @@ command_t cmdlist[] = {
          "Create a new file with a specific striping pattern or\n"
          "set the default striping pattern on an existing directory or\n"
          "delete the default striping pattern from an existing directory\n"
-         "usage: setstripe <filename|dirname> <stripe_size> <stripe_index> <stripe_count>\n"
-         "       or \n"
-         "       setstripe <filename|dirname> [--size|-s stripe_size]\n"
-         "                                    [--index|-i stripe_index]\n"
-         "                                    [--count|-c stripe_count]\n"
+         "usage: setstripe [--size|-s stripe_size] [--count|-c stripe_count]\n"
+         "                 [--index|-i|--offset|-o start_ost_index]\n"
+         "                 [--pool|-p <pool>] <directory|filename>\n"
          "       or \n"
-         "       setstripe -d <dirname>   (to delete default striping)\n"
+         "       setstripe -d <directory>   (to delete default striping)\n"
          "\tstripe_size:  Number of bytes on each OST (0 filesystem default)\n"
-         "\t              Can be specified with k, m or g (in KB, MB and GB respectively)\n"
-         "\tstripe_index: OST index of first stripe (-1 filesystem default)\n"
-         "\tstripe_count: Number of OSTs to stripe over (0 default, -1 all)"},
+         "\t              Can be specified with k, m or g (in KB, MB and GB\n"
+         "\t              respectively)\n"
+         "\tstart_ost_index: OST index of first stripe (-1 default)\n"
+         "\tstripe_count: Number of OSTs to stripe over (0 default, -1 all)\n"
+         "\tpool:         Name of OST pool to use (default none)"},
         {"getstripe", lfs_getstripe, 0,
-         "To list the striping info for a given filename or files in a\n"
+         "To list the striping info for a given file or files in a\n"
          "directory or recursively for all files in a directory tree.\n"
          "usage: getstripe [--obd|-O <uuid>] [--quiet | -q] [--verbose | -v]\n"
-         "                 [--recursive | -r] <dir|file> ..."},
+         "                 [--count | -c ] [--index | -i | --offset | -o]\n"
+         "                 [--size | -s ] [--pool | -p ] [--directory | -d]\n"
+         "                 [--mdt | -M] [--recursive | -r] [--raw | -R]\n"
+         "                 <directory|filename> ..."},
+        {"pool_list", lfs_poollist, 0,
+         "List pools or pool OSTs\n"
+         "usage: pool_list <fsname>[.<pool>] | <pathname>\n"},
         {"find", lfs_find, 0,
          "To find files that match given parameters recursively in a directory tree.\n"
-         "usage: find <dir/file> ... \n"
+         "usage: find <directory|filename> ...\n"
          "     [[!] --atime|-A [+-]N] [[!] --mtime|-M [+-]N] [[!] --ctime|-C [+-]N]\n"
          "     [--maxdepth|-D N] [[!] --name|-n <pattern>] [--print0|-P]\n"
-         "     [--print|-p] [--obd|-O <uuid[s]>] [[!] --size|-s [+-]N[bkMGTP]]\n"
-         "     [[!] --type|-t <filetype>] [[!] --gid|-g N] [[!] --group|-G <name>]\n"
-         "     [[!] --uid|-u N] [[!] --user|-U <name>]\n"
+         "     [--print|-p] [[!] --obd|-O <uuid[s]>] [[!] --size|-s [+-]N[bkMGTP]]\n"
+         "     [[!] --type|-t <filetype>] [[!] --gid|-g|--group|-G <gid>|<gname>]\n"
+         "     [[!] --uid|-u|--user|-U <uid>|<uname>]\n"
+         "     [[!] --pool <pool>]\n"
          "\t !: used before an option indicates 'NOT' the requested attribute\n"
          "\t -: used before an value indicates 'AT MOST' the requested value\n"
          "\t +: used before an option indicates 'AT LEAST' the requested value\n"},
@@ -121,14 +162,18 @@ command_t cmdlist[] = {
          "\tkeywords are one of followings: config, deletions.\n"
          "\tnode name must be provided when use keyword config."},
         {"join", lfs_join, 0,
-         "join two lustre files into one - join A, B, will be like cat B >> A & del B\n"
-         "usage: join <filename_A> <filename_B>\n"},
-        {"osts", lfs_osts, 0, "osts"},
+         "join two lustre files into one.\n"
+         "obsolete, HEAD does not support it anymore.\n"},
+        {"osts", lfs_osts, 0, "list OSTs connected to client "
+         "[for specified path only]\n" "usage: osts [path]"},
         {"df", lfs_df, 0,
          "report filesystem disk space usage or inodes usage"
-         "of each MDS/OSD.\n"
-         "Usage: df [-i] [-h] [path]"},
-#ifdef HAVE_QUOTA_SUPPORT
+         "of each MDS and all OSDs or a batch belonging to a specific pool .\n"
+         "Usage: df [-i] [-h] [--pool|-p <fsname>[.<pool>] [path]"},
+        {"getname", lfs_getname, 0, "list instances and specified mount points "
+         "[for specified path only]\n"
+         "Usage: getname [-h]|[path ...] "},
+#ifdef HAVE_SYS_QUOTA_H
         {"quotachown",lfs_quotachown, 0,
          "Change files' owner or group on the specified filesystem.\n"
          "usage: quotachown [-i] <filesystem>\n"
@@ -142,10 +187,28 @@ command_t cmdlist[] = {
         {"quotaoff", lfs_quotaoff, 0, "Turn filesystem quotas off.\n"
          "usage: quotaoff [ -ug ] <filesystem>"},
         {"setquota", lfs_setquota, 0, "Set filesystem quotas.\n"
-         "usage: setquota [ -u | -g ] <name> <block-softlimit> <block-hardlimit> <inode-softlimit> <inode-hardlimit> <filesystem>\n"
-         "       setquota -t [ -u | -g ] <block-grace> <inode-grace> <filesystem>"},
+         "usage: setquota <-u|-g> <uname>|<uid>|<gname>|<gid>\n"
+         "                -b <block-softlimit> -B <block-hardlimit>\n"
+         "                -i <inode-softlimit> -I <inode-hardlimit> <filesystem>\n"
+         "       setquota -t <-u|-g> <block-grace> <inode-grace> <filesystem>\n"
+         "       setquota <-u|--user|-g|--group> <uname>|<uid>|<gname>|<gid>\n"
+         "                [--block-softlimit <block-softlimit>]\n"
+         "                [--block-hardlimit <block-hardlimit>]\n"
+         "                [--inode-softlimit <inode-softlimit>]\n"
+         "                [--inode-hardlimit <inode-hardlimit>] <filesystem>\n"
+         "       setquota [-t] <-u|--user|-g|--group>\n"
+         "                [--block-grace <block-grace>]\n"
+         "                [--inode-grace <inode-grace>] <filesystem>\n"
+         "       -b can be used instead of --block-softlimit/--block-grace\n"
+         "       -B can be used instead of --block-hardlimit\n"
+         "       -i can be used instead of --inode-softlimit/--inode-grace\n"
+         "       -I can be used instead of --inode-hardlimit"},
         {"quota", lfs_quota, 0, "Display disk usage and limits.\n"
-         "usage: quota [ -o obd_uuid ] [{-u|-g  <name>}|-t] <filesystem>"},
+         "usage: quota [-q] [-v] [-o <obd_uuid>|-i <mdt_idx>|-I <ost_idx>]\n"
+         "             [<-u|-g> <uname>|<uid>|<gname>|<gid>] <filesystem>\n"
+         "       quota [-o <obd_uuid>|-i <mdt_idx>|-I <ost_idx>] -t <-u|-g> <filesystem>"},
+        {"quotainv", lfs_quotainv, 0, "Invalidate quota data.\n"
+         "usage: quotainv [-u|-g] <filesystem>"},
 #endif
         {"flushctx", lfs_flushctx, 0, "Flush security context for current user.\n"
          "usage: flushctx [-k] [mountpoint...]"},
@@ -167,12 +230,43 @@ command_t cmdlist[] = {
         {"ls", lfs_ls, 0,
          "Remote user list directory contents.\n"
          "usage: ls [OPTION]... [FILE]..."},
+        {"changelog", lfs_changelog, 0,
+         "Show the metadata changes on an MDT."
+         "\nusage: changelog <mdtname> [startrec [endrec]]"},
+        {"changelog_clear", lfs_changelog_clear, 0,
+         "Indicate that old changelog records up to <endrec> are no longer of "
+         "interest to consumer <id>, allowing the system to free up space.\n"
+         "An <endrec> of 0 means all records.\n"
+         "usage: changelog_clear <mdtname> <id> <endrec>"},
+        {"fid2path", lfs_fid2path, 0,
+         "Resolve the full path to a given FID. For a specific hardlink "
+         "specify link number <linkno>.\n"
+         /* "For a historical name, specify changelog record <recno>.\n" */
+         "usage: fid2path <fsname|rootpath> <fid> [--link <linkno>]"
+                /*[--rec <recno>]*/},
+        {"path2fid", lfs_path2fid, 0, "Display the fid for a given path.\n"
+         "usage: path2fid <path>"},
         {"help", Parser_help, 0, "help"},
         {"exit", Parser_quit, 0, "quit"},
         {"quit", Parser_quit, 0, "quit"},
         { 0, 0, 0, NULL }
 };
 
+static int isnumber(const char *str)
+{
+        const char *ptr;
+
+        if (str[0] != '-' && !isdigit(str[0]))
+                return 0;
+
+        for (ptr = str + 1; *ptr != '\0'; ptr++) {
+                if (!isdigit(*ptr))
+                        return 0;
+        }
+
+        return 1;
+}
+
 /* functions */
 static int lfs_setstripe(int argc, char **argv)
 {
@@ -186,39 +280,37 @@ static int lfs_setstripe(int argc, char **argv)
         char *stripe_size_arg = NULL;
         char *stripe_off_arg = NULL;
         char *stripe_count_arg = NULL;
-        unsigned long long size_units;
+        char *pool_name_arg = NULL;
+        unsigned long long size_units = 1;
 
         struct option long_opts[] = {
-                {"size",        required_argument, 0, 's'},
                 {"count",       required_argument, 0, 'c'},
-                {"index",       required_argument, 0, 'i'},
                 {"delete",      no_argument,       0, 'd'},
+                {"index",       required_argument, 0, 'i'},
+                {"offset",      required_argument, 0, 'o'},
+                {"pool",        required_argument, 0, 'p'},
+                {"size",        required_argument, 0, 's'},
                 {0, 0, 0, 0}
         };
 
         st_size = 0;
         st_offset = -1;
         st_count = 0;
-        if (argc == 3 && strcmp(argv[1], "-d") == 0) {
-                /* for compatibility with the existing positional parameter
-                 * usage */
-                fname = argv[2];
-                optind = 2;
-        } else if (argc == 5  && 
-                   (argv[2][0] != '-' || isdigit(argv[2][1])) &&
-                   (argv[3][0] != '-' || isdigit(argv[3][1])) &&
-                   (argv[4][0] != '-' || isdigit(argv[4][1])) ) {
-                /* for compatibility with the existing positional parameter
-                 * usage */
-                fname = argv[1];
-                stripe_size_arg = argv[2];
-                stripe_off_arg = argv[3];
-                stripe_count_arg = argv[4];
-                optind = 4;
-        } else {
+
+#if LUSTRE_VERSION < OBD_OCD_VERSION(2,4,50,0)
+        if (argc == 5 && argv[1][0] != '-' &&
+            isnumber(argv[2]) && isnumber(argv[3]) && isnumber(argv[4])) {
+                fprintf(stderr, "error: obsolete usage of setstripe "
+                        "positional parameters.  Use -c, -i, -s instead.\n");
+                return CMD_HELP;
+        } else
+#else
+#warning "remove obsolete positional parameter code"
+#endif
+        {
                 optind = 0;
-                while ((c = getopt_long(argc, argv, "c:di:s:",
-                                                long_opts, NULL)) >= 0) {
+                while ((c = getopt_long(argc, argv, "c:di:o:p:s:",
+                                        long_opts, NULL)) >= 0) {
                         switch (c) {
                         case 0:
                                 /* Long options. */
@@ -231,11 +323,15 @@ static int lfs_setstripe(int argc, char **argv)
                                 delete = 1;
                                 break;
                         case 'i':
+                        case 'o':
                                 stripe_off_arg = optarg;
                                 break;
                         case 's':
                                 stripe_size_arg = optarg;
                                 break;
+                        case 'p':
+                                pool_name_arg = optarg;
+                                break;
                         case '?':
                                 return CMD_HELP;
                         default:
@@ -245,40 +341,37 @@ static int lfs_setstripe(int argc, char **argv)
                                 return CMD_HELP;
                         }
                 }
-                if (optind < argc)
-                        fname = argv[optind];
-                else
-                        return CMD_HELP;
 
+                fname = argv[optind];
 
-                if (delete && 
-                    (stripe_size_arg != NULL || stripe_off_arg != NULL || 
-                     stripe_count_arg != NULL)) {
+                if (delete &&
+                    (stripe_size_arg != NULL || stripe_off_arg != NULL ||
+                     stripe_count_arg != NULL || pool_name_arg != NULL)) {
                         fprintf(stderr, "error: %s: cannot specify -d with "
-                                        "-s, -c or -i options\n",
+                                        "-s, -c -o or -p options\n",
                                         argv[0]);
                         return CMD_HELP;
                 }
         }
-        if (optind != argc - 1) {
-                fprintf(stderr, "error: %s: only 1 filename|dirname can be "
-                                "specified: '%s'\n",
-                                argv[0], argv[argc - 1]);
+
+        if (optind == argc) {
+                fprintf(stderr, "error: %s: missing filename|dirname\n",
+                        argv[0]);
                 return CMD_HELP;
         }
 
         /* get the stripe size */
         if (stripe_size_arg != NULL) {
-                result = parse_size(stripe_size_arg, &st_size, &size_units);
+                result = parse_size(stripe_size_arg, &st_size, &size_units, 0);
                 if (result) {
-                        fprintf(stderr,"error: bad size '%s'\n",
-                                stripe_size_arg);
+                        fprintf(stderr, "error: %s: bad size '%s'\n",
+                                argv[0], stripe_size_arg);
                         return result;
                 }
         }
         /* get the stripe offset */
         if (stripe_off_arg != NULL) {
-                st_offset = strtoul(stripe_off_arg, &end, 0);
+                st_offset = strtol(stripe_off_arg, &end, 0);
                 if (*end != '\0') {
                         fprintf(stderr, "error: %s: bad stripe offset '%s'\n",
                                 argv[0], stripe_off_arg);
@@ -295,19 +388,33 @@ static int lfs_setstripe(int argc, char **argv)
                 }
         }
 
-        result = llapi_file_create(fname, st_size, st_offset, st_count, 0);
-        if (result)
-                fprintf(stderr, "error: %s: create stripe file failed\n",
-                                argv[0]);
+        do {
+                result = llapi_file_create_pool(fname, st_size, st_offset,
+                                                st_count, 0, pool_name_arg);
+                if (result) {
+                        fprintf(stderr,"error: %s: create stripe file '%s' "
+                                "failed\n", argv[0], fname);
+                        break;
+                }
+                fname = argv[++optind];
+        } while (fname != NULL);
 
         return result;
 }
 
+static int lfs_poollist(int argc, char **argv)
+{
+        if (argc != 2)
+                return CMD_HELP;
+
+        return llapi_poollist(argv[1]);
+}
+
 static int set_time(time_t *time, time_t *set, char *str)
 {
         time_t t;
         int res = 0;
-        
+
         if (str[0] == '+')
                 res = 1;
         else if (str[0] == '-')
@@ -328,9 +435,12 @@ static int set_time(time_t *time, time_t *set, char *str)
         return res;
 }
 
+#define USER 0
+#define GROUP 1
+
 static int name2id(unsigned int *id, char *name, int type)
 {
-        if (type == USRQUOTA) {
+        if (type == USER) {
                 struct passwd *entry;
 
                 if (!(entry = getpwnam(name))) {
@@ -357,7 +467,7 @@ static int name2id(unsigned int *id, char *name, int type)
 
 static int id2name(char **name, unsigned int id, int type)
 {
-        if (type == USRQUOTA) {
+        if (type == USER) {
                 struct passwd *entry;
 
                 if (!(entry = getpwuid(id))) {
@@ -382,34 +492,34 @@ static int id2name(char **name, unsigned int id, int type)
         return 0;
 }
 
+#define FIND_POOL_OPT 3
 static int lfs_find(int argc, char **argv)
 {
         int new_fashion = 1;
         int c, ret;
         time_t t;
-        struct find_param param = { .maxdepth = -1 };
-        char str[1024];
+        struct find_param param = { .maxdepth = -1, .size_units = 0 };
         struct option long_opts[] = {
-                /* New find options. */
                 {"atime",     required_argument, 0, 'A'},
                 {"ctime",     required_argument, 0, 'C'},
-                {"mtime",     required_argument, 0, 'M'},
                 {"maxdepth",  required_argument, 0, 'D'},
                 {"gid",       required_argument, 0, 'g'},
                 {"group",     required_argument, 0, 'G'},
-                {"uid",       required_argument, 0, 'u'},
-                {"user",      required_argument, 0, 'U'},
+                {"mtime",     required_argument, 0, 'M'},
                 {"name",      required_argument, 0, 'n'},
                 /* --obd is considered as a new option. */
                 {"obd",       required_argument, 0, 'O'},
                 {"ost",       required_argument, 0, 'O'},
-                {"print",     no_argument,       0, 'P'},
+                /* no short option for pool, p/P already used */
+                {"pool",      required_argument, 0, FIND_POOL_OPT},
                 {"print0",    no_argument,       0, 'p'},
-                /* Old find options. */
+                {"print",     no_argument,       0, 'P'},
                 {"quiet",     no_argument,       0, 'q'},
                 {"recursive", no_argument,       0, 'r'},
                 {"size",      required_argument, 0, 's'},
                 {"type",      required_argument, 0, 't'},
+                {"uid",       required_argument, 0, 'u'},
+                {"user",      required_argument, 0, 'U'},
                 {"verbose",   no_argument,       0, 'v'},
                 {0, 0, 0, 0}
         };
@@ -424,19 +534,27 @@ static int lfs_find(int argc, char **argv)
         time(&t);
 
         optind = 0;
-        while ((c = getopt_long_only(argc, argv, "-A:C:D:g:G:M:n:PpO:qrs:t:u:U:v",
+        /* when getopt_long_only() hits '!' it returns 1, puts "!" in optarg */
+        while ((c = getopt_long_only(argc,argv,"-A:C:D:g:G:M:n:O:Ppqrs:t:u:U:v",
                                      long_opts, NULL)) >= 0) {
                 xtime = NULL;
                 xsign = NULL;
                 if (neg_opt)
                         --neg_opt;
                 /* '!' is part of option */
+                /* when getopt_long_only() finds a string which is not
+                 * an option nor a known option argument it returns 1
+                 * in that case if we already have found pathstart and pathend
+                 * (i.e. we have the list of pathnames),
+                 * the only supported value is "!"
+                 */
                 isoption = (c != 1) || (strcmp(optarg, "!") == 0);
                 if (!isoption && pathend != -1) {
                         fprintf(stderr, "err: %s: filename|dirname must either "
                                         "precede options or follow options\n",
                                         argv[0]);
-                        return CMD_HELP;
+                        ret = CMD_HELP;
+                        goto err;
                 }
                 if (!isoption && pathstart == -1)
                         pathstart = optind - 1;
@@ -452,38 +570,34 @@ static int lfs_find(int argc, char **argv)
                         /* Long options. */
                         break;
                 case 1:
+                        /* unknown; opt is "!" or path component,
+                         * checking done above.
+                         */
                         if (strcmp(optarg, "!") == 0)
                                 neg_opt = 2;
                         break;
                 case 'A':
                         xtime = &param.atime;
                         xsign = &param.asign;
+                        param.exclude_atime = !!neg_opt;
                 case 'C':
                         if (c == 'C') {
                                 xtime = &param.ctime;
                                 xsign = &param.csign;
+                                param.exclude_ctime = !!neg_opt;
                         }
                 case 'M':
                         if (c == 'M') {
                                 xtime = &param.mtime;
                                 xsign = &param.msign;
+                                param.exclude_mtime = !!neg_opt;
                         }
                         new_fashion = 1;
-                        if (neg_opt) {
-                                if (optarg[0] == '-')
-                                        optarg[0] = '+';
-                                else if (optarg[0] == '+')
-                                        optarg[0] = '-';
-                                else {
-                                        str[0] = '-';
-                                        str[1] = '\0';
-                                        strcat(str, optarg);
-                                        optarg = str;
-                                }
-                        }
                         ret = set_time(&t, xtime, optarg);
-                        if (ret == INT_MAX)
-                                return -1;
+                        if (ret == INT_MAX) {
+                                ret = -1;
+                                goto err;
+                        }
                         if (ret)
                                 *xsign = ret;
                         break;
@@ -492,53 +606,54 @@ static int lfs_find(int argc, char **argv)
                         param.maxdepth = strtol(optarg, 0, 0);
                         break;
                 case 'g':
-                        new_fashion = 1;
-                        param.gid = strtol(optarg, &endptr, 10);
-                        if (optarg == endptr) {
-                                fprintf(stderr, "Bad gid: %s\n", optarg);
-                                return CMD_HELP;
-                        }
-                        param.exclude_gid = !!neg_opt;
-                        param.check_gid = 1;
-                        break;
                 case 'G':
                         new_fashion = 1;
-                        param.gid = strtol(optarg, &endptr, 10);
-                        if (optarg == endptr) {
-                               ret = name2id(&param.gid, optarg, GRPQUOTA);
-                               if (ret != 0) {
+                        ret = name2id(&param.gid, optarg, GROUP);
+                        if (ret) {
+                                param.gid = strtoul(optarg, &endptr, 10);
+                                if (*endptr != '\0') {
                                         fprintf(stderr, "Group/GID: %s cannot "
                                                 "be found.\n", optarg);
-                                        return -1;
+                                        ret = -1;
+                                        goto err;
                                 }
                         }
                         param.exclude_gid = !!neg_opt;
                         param.check_gid = 1;
                         break;
                 case 'u':
-                        new_fashion = 1;
-                        param.uid = strtol(optarg, &endptr, 10);
-                        if (optarg == endptr) {
-                                fprintf(stderr, "Bad uid: %s\n", optarg);
-                                return CMD_HELP;
-                        }
-                        param.exclude_uid = !!neg_opt;
-                        param.check_uid = 1;
-                        break;
                 case 'U':
                         new_fashion = 1;
-                        param.uid = strtol(optarg, &endptr, 10);
-                        if (optarg == endptr) {
-                               ret = name2id(&param.uid, optarg, USRQUOTA);
-                               if (ret != 0) {
+                        ret = name2id(&param.uid, optarg, USER);
+                        if (ret) {
+                                param.uid = strtoul(optarg, &endptr, 10);
+                                if (*endptr != '\0') {
                                         fprintf(stderr, "User/UID: %s cannot "
                                                 "be found.\n", optarg);
-                                        return -1;
+                                        ret = -1;
+                                        goto err;
                                 }
                         }
                         param.exclude_uid = !!neg_opt;
                         param.check_uid = 1;
                         break;
+                case FIND_POOL_OPT:
+                        new_fashion = 1;
+                        if (strlen(optarg) > LOV_MAXPOOLNAME) {
+                                fprintf(stderr,
+                                        "Pool name %s is too long"
+                                        " (max is %d)\n", optarg,
+                                        LOV_MAXPOOLNAME);
+                                ret = -1;
+                                goto err;
+                        }
+                        /* we do check for empty pool because empty pool
+                         * is used to find V1 lov attributes */
+                        strncpy(param.poolname, optarg, LOV_MAXPOOLNAME);
+                        param.poolname[LOV_MAXPOOLNAME] = '\0';
+                        param.exclude_pool = !!neg_opt;
+                        param.check_pool = 1;
+                        break;
                 case 'n':
                         new_fashion = 1;
                         param.pattern = (char *)optarg;
@@ -546,21 +661,36 @@ static int lfs_find(int argc, char **argv)
                         break;
                 case 'O': {
                         char *buf, *token, *next, *p;
-                        int len;
-
-                        len = strlen((char *)optarg);
-                        buf = malloc(len+1);
-                        if (buf == NULL)
-                                return -ENOMEM;
-                        strcpy(buf, (char *)optarg);
-
-                        if (param.num_alloc_obds == 0) {
-                                param.obduuid = (struct obd_uuid *)malloc(FIND_MAX_OSTS *
-                                                       sizeof(struct obd_uuid));
-                                if (param.obduuid == NULL)
-                                        return -ENOMEM;
-                                param.num_alloc_obds = INIT_ALLOC_NUM_OSTS;
+                        int len = 1;
+                        void *tmp;
+
+                        buf = strdup(optarg);
+                        if (buf == NULL) {
+                                ret = -ENOMEM;
+                                goto err;
+                        }
+
+                        param.exclude_obd = !!neg_opt;
+
+                        token = buf;
+                        while (token && *token) {
+                                token = strchr(token, ',');
+                                if (token) {
+                                        len++;
+                                        token++;
+                                }
+                        }
+
+                        param.num_alloc_obds += len;
+                        tmp = realloc(param.obduuid,
+                                      param.num_alloc_obds *
+                                      sizeof(*param.obduuid));
+                        if (tmp == NULL) {
+                                ret = -ENOMEM;
+                                free(buf);
+                                goto err;
                         }
+                        param.obduuid = tmp;
 
                         for (token = buf; token && *token; token = next) {
                                 p = strchr(token, ',');
@@ -607,22 +737,11 @@ static int lfs_find(int argc, char **argv)
 #endif
                         default: fprintf(stderr, "error: %s: bad type '%s'\n",
                                          argv[0], optarg);
-                                 return CMD_HELP;
+                                 ret = CMD_HELP;
+                                 goto err;
                         };
                         break;
                 case 's':
-                        if (neg_opt) {
-                                if (optarg[0] == '-')
-                                        optarg[0] = '+';
-                                else if (optarg[0] == '+')
-                                        optarg[0] = '-';
-                                else {
-                                        str[0] = '-';
-                                        str[1] = '\0';
-                                        strcat(str, optarg);
-                                        optarg = str;
-                                }
-                        }
                         if (optarg[0] == '+')
                                 param.size_sign = -1;
                         else if (optarg[0] == '-')
@@ -630,12 +749,15 @@ static int lfs_find(int argc, char **argv)
 
                         if (param.size_sign)
                                 optarg++;
-                        ret = parse_size(optarg, &param.size,&param.size_units);
+                        ret = parse_size(optarg, &param.size,
+                                         &param.size_units, 0);
                         if (ret) {
                                 fprintf(stderr,"error: bad size '%s'\n",
                                         optarg);
-                                return ret;
+                                goto err;
                         }
+                        param.check_size = 1;
+                        param.exclude_size = !!neg_opt;
                         break;
                 case 'v':
                         new_fashion = 0;
@@ -643,18 +765,21 @@ static int lfs_find(int argc, char **argv)
                         param.quiet = 0;
                         break;
                 case '?':
-                        return CMD_HELP;
+                        ret = CMD_HELP;
+                        goto err;
                 default:
                         fprintf(stderr, "error: %s: option '%s' unrecognized\n",
                                 argv[0], argv[optind - 1]);
-                        return CMD_HELP;
+                        ret = CMD_HELP;
+                        goto err;
                 };
         }
-        
+
         if (pathstart == -1) {
                 fprintf(stderr, "error: %s: no filename|pathname\n",
                         argv[0]);
-                return CMD_HELP;
+                ret = CMD_HELP;
+                goto err;
         } else if (pathend == -1) {
                 /* no options */
                 pathend = argc;
@@ -672,7 +797,7 @@ static int lfs_find(int argc, char **argv)
                 if (!param.recursive && param.maxdepth == -1)
                         param.maxdepth = 1;
         }
-        
+
         do {
                 if (new_fashion)
                         ret = llapi_find(argv[pathstart], &param);
@@ -683,7 +808,7 @@ static int lfs_find(int argc, char **argv)
         if (ret)
                 fprintf(stderr, "error: %s failed for %s.\n",
                         argv[0], argv[optind - 1]);
-
+err:
         if (param.obduuid && param.num_alloc_obds)
                 free(param.obduuid);
 
@@ -693,18 +818,27 @@ static int lfs_find(int argc, char **argv)
 static int lfs_getstripe(int argc, char **argv)
 {
         struct option long_opts[] = {
+                {"count", 0, 0, 'c'},
+                {"directory", 0, 0, 'd'},
+                {"generation", 0, 0, 'g'},
+                {"index", 0, 0, 'i'},
+                {"mdt", 0, 0, 'M'},
+                {"offset", 0, 0, 'o'},
                 {"obd", 1, 0, 'O'},
+                {"pool", 0, 0, 'p'},
                 {"quiet", 0, 0, 'q'},
                 {"recursive", 0, 0, 'r'},
+                {"raw", 0, 0, 'R'},
+                {"size", 0, 0, 's'},
                 {"verbose", 0, 0, 'v'},
                 {0, 0, 0, 0}
         };
-        char short_opts[] = "hO:qrv";
         int c, rc;
         struct find_param param = { 0 };
 
+        param.maxdepth = 1;
         optind = 0;
-        while ((c = getopt_long(argc, argv, short_opts,
+        while ((c = getopt_long(argc, argv, "cdghiMoO:pqrRsv",
                                 long_opts, NULL)) != -1) {
                 switch (c) {
                 case 'O':
@@ -718,14 +852,52 @@ static int lfs_getstripe(int argc, char **argv)
                         break;
                 case 'q':
                         param.quiet++;
-                        param.verbose = 0;
+                        break;
+                case 'd':
+                        param.maxdepth = 0;
                         break;
                 case 'r':
                         param.recursive = 1;
                         break;
                 case 'v':
-                        param.verbose++;
-                        param.quiet = 0;
+                        param.verbose = VERBOSE_ALL | VERBOSE_DETAIL;
+                        break;
+                case 'c':
+                        if (!(param.verbose & VERBOSE_DETAIL)) {
+                                param.verbose |= VERBOSE_COUNT;
+                                param.maxdepth = 0;
+                        }
+                        break;
+                case 's':
+                        if (!(param.verbose & VERBOSE_DETAIL)) {
+                                param.verbose |= VERBOSE_SIZE;
+                                param.maxdepth = 0;
+                        }
+                        break;
+                case 'i':
+                case 'o':
+                        if (!(param.verbose & VERBOSE_DETAIL)) {
+                                param.verbose |= VERBOSE_OFFSET;
+                                param.maxdepth = 0;
+                        }
+                        break;
+                case 'p':
+                        if (!(param.verbose & VERBOSE_DETAIL)) {
+                                param.verbose |= VERBOSE_POOL;
+                                param.maxdepth = 0;
+                        }
+                        break;
+                case 'g':
+                        if (!(param.verbose & VERBOSE_DETAIL)) {
+                                param.verbose |= VERBOSE_GENERATION;
+                                param.maxdepth = 0;
+                        }
+                        break;
+                case 'M':
+                        param.get_mdt_index = 1;
+                        break;
+                case 'R':
+                        param.raw = 1;
                         break;
                 case '?':
                         return CMD_HELP;
@@ -739,47 +911,54 @@ static int lfs_getstripe(int argc, char **argv)
         if (optind >= argc)
                 return CMD_HELP;
 
-        param.maxdepth = param.recursive ? -1 : 1;
+        if (param.recursive)
+                param.maxdepth = -1;
+
+        if (!param.verbose)
+                param.verbose = VERBOSE_ALL;
+        if (param.quiet)
+                param.verbose = VERBOSE_OBJID;
 
         do {
                 rc = llapi_getstripe(argv[optind], &param);
         } while (++optind < argc && !rc);
 
         if (rc)
-                fprintf(stderr, "error: %s failed for %s.\n", 
+                fprintf(stderr, "error: %s failed for %s.\n",
                         argv[0], argv[optind - 1]);
         return rc;
 }
 
 static int lfs_osts(int argc, char **argv)
 {
-        FILE *fp;
-        struct mntent *mnt = NULL;
+        char mntdir[PATH_MAX] = {'\0'}, path[PATH_MAX] = {'\0'};
         struct find_param param;
-        int rc=0;
+        int index = 0, rc=0;
 
-        if (argc != 1)
+        if (argc > 2)
                 return CMD_HELP;
 
-        fp = setmntent(MOUNTED, "r");
+        if (argc == 2 && !realpath(argv[1], path)) {
+                rc = -errno;
+                fprintf(stderr, "error: invalid path '%s': %s\n",
+                        argv[1], strerror(-rc));
+                return rc;
+        }
+
+        while (!llapi_search_mounts(path, index++, mntdir, NULL)) {
+                /* Check if we have a mount point */
+                if (mntdir[0] == '\0')
+                        continue;
 
-        if (fp == NULL) {
-                 fprintf(stderr, "%s: setmntent(%s): %s:", argv[0], MOUNTED,
-                        strerror (errno));
-        } else {
-                mnt = getmntent(fp);
-                while (feof(fp) == 0 && ferror(fp) ==0) {
-                        memset(&param, 0, sizeof(param));
-                        if (llapi_is_lustre_mnt(mnt)) {
-                                rc = llapi_getstripe(mnt->mnt_dir, &param);
-                                if (rc)
-                                        fprintf(stderr,
-                                               "error: %s: failed on %s\n",
-                                               argv[0], mnt->mnt_dir);
-                        }
-                        mnt = getmntent(fp);
+                memset(&param, 0, sizeof(param));
+                rc = llapi_ostlist(mntdir, &param);
+                if (rc) {
+                        fprintf(stderr, "error: %s: failed on %s\n",
+                                argv[0], mntdir);
                 }
-                endmntent(fp);
+                if (path[0] != '\0')
+                        break;
+                memset(mntdir, 0, PATH_MAX);
         }
 
         return rc;
@@ -795,47 +974,11 @@ static int lfs_osts(int argc, char **argv)
         radix;                                                          \
 })
 #define UUF     "%-20s"
-#define CSF     "%9s"
-#define CDF     "%9llu"
-#define HSF     "%8s"
-#define HDF     "%6.1f"
-#define RSF     "%5s"
-#define RDF     "%4d%%"
-
-static int path2mnt(char *path, FILE *fp, char *mntdir, int dir_len)
-{
-        char rpath[PATH_MAX] = {'\0'};
-        struct mntent *mnt;
-        int rc, len, out_len = 0;
-
-        if (!realpath(path, rpath)) {
-                rc = -errno;
-                fprintf(stderr, "error: lfs df: invalid path '%s': %s\n",
-                        path, strerror(-rc));
-                return rc;
-        }
-
-        len = 0;
-        mnt = getmntent(fp);
-        while (feof(fp) == 0 && ferror(fp) == 0) {
-                if (llapi_is_lustre_mnt(mnt)) {
-                        len = strlen(mnt->mnt_dir);
-                        if (len > out_len &&
-                            !strncmp(rpath, mnt->mnt_dir, len)) {
-                                out_len = len;
-                                memset(mntdir, 0, dir_len);
-                                strncpy(mntdir, mnt->mnt_dir, dir_len);
-                        }
-                }
-                mnt = getmntent(fp);
-        }
-
-        if (out_len > 0)
-                return 0;
-
-        fprintf(stderr, "error: lfs df: %s isn't mounted on lustre\n", path);
-        return -EINVAL;
-}
+#define CSF     "%11s"
+#define CDF     "%11llu"
+#define HDF     "%8.1f%c"
+#define RSF     "%4s"
+#define RDF     "%3d%%"
 
 static int showdf(char *mntdir, struct obd_statfs *stat,
                   char *uuid, int ishow, int cooked,
@@ -865,8 +1008,8 @@ static int showdf(char *mntdir, struct obd_statfs *stat,
                         total = (stat->os_blocks * stat->os_bsize) >> shift;
                 }
 
-                if (total > 0)
-                        ratio = (double)used / (double)total;
+                if ((used + avail) > 0)
+                        ratio = (double)used / (double)(used + avail);
 
                 if (cooked) {
                         int i;
@@ -875,21 +1018,21 @@ static int showdf(char *mntdir, struct obd_statfs *stat,
                         cook_val = (double)total;
                         i = COOK(cook_val);
                         if (i > 0)
-                                sprintf(tbuf, HDF"%c", cook_val, suffix[i - 1]);
+                                sprintf(tbuf, HDF, cook_val, suffix[i - 1]);
                         else
                                 sprintf(tbuf, CDF, total);
 
                         cook_val = (double)used;
                         i = COOK(cook_val);
                         if (i > 0)
-                                sprintf(ubuf, HDF"%c", cook_val, suffix[i - 1]);
+                                sprintf(ubuf, HDF, cook_val, suffix[i - 1]);
                         else
                                 sprintf(ubuf, CDF, used);
 
                         cook_val = (double)avail;
                         i = COOK(cook_val);
                         if (i > 0)
-                                sprintf(abuf, HDF"%c", cook_val, suffix[i - 1]);
+                                sprintf(abuf, HDF, cook_val, suffix[i - 1]);
                         else
                                 sprintf(abuf, CDF, avail);
                 } else {
@@ -898,7 +1041,7 @@ static int showdf(char *mntdir, struct obd_statfs *stat,
                         sprintf(abuf, CDF, avail);
                 }
 
-                sprintf(rbuf, RDF, (int)(ratio * 100));
+                sprintf(rbuf, RDF, (int)(ratio * 100 + 0.5));
                 printf(UUF" "CSF" "CSF" "CSF" "RSF" %-s",
                        uuid, tbuf, ubuf, abuf, rbuf, mntdir);
                 if (type)
@@ -918,13 +1061,35 @@ static int showdf(char *mntdir, struct obd_statfs *stat,
         return 0;
 }
 
-static int mntdf(char *mntdir, int ishow, int cooked)
+struct ll_stat_type {
+        int   st_op;
+        char *st_name;
+};
+
+static int mntdf(char *mntdir, char *fsname, char *pool, int ishow, int cooked)
 {
         struct obd_statfs stat_buf, sum = { .os_bsize = 1 };
         struct obd_uuid uuid_buf;
+        char *poolname = NULL;
+        struct ll_stat_type types[] = { { LL_STATFS_MDC, "MDT" },
+                                        { LL_STATFS_LOV, "OST" },
+                                        { 0, NULL } };
+        struct ll_stat_type *tp;
         __u32 index;
         int rc;
 
+        if (pool) {
+                poolname = strchr(pool, '.');
+                if (poolname != NULL) {
+                        if (strncmp(fsname, pool, strlen(fsname))) {
+                                fprintf(stderr, "filesystem name incorrect\n");
+                                return -ENODEV;
+                        }
+                        poolname++;
+                } else
+                        poolname = pool;
+        }
+
         if (ishow)
                 printf(UUF" "CSF" "CSF" "CSF" "RSF" %-s\n",
                        "UUID", "Inodes", "IUsed", "IFree",
@@ -934,78 +1099,68 @@ static int mntdf(char *mntdir, int ishow, int cooked)
                        "UUID", cooked ? "bytes" : "1K-blocks",
                        "Used", "Available", "Use%", "Mounted on");
 
-        for (index = 0; ; index++) {
-                memset(&stat_buf, 0, sizeof(struct obd_statfs));
-                memset(&uuid_buf, 0, sizeof(struct obd_uuid));
-                rc = llapi_obd_statfs(mntdir, LL_STATFS_MDC, index,
-                                      &stat_buf, &uuid_buf);
-                if (rc == -ENODEV)
-                        break;
-
-                if (rc == -EAGAIN)
-                        continue;
-
-                if (rc == -ENOTCONN || rc == -ETIMEDOUT || rc == -EIO ||
-                    rc == -ENODATA || rc == 0) {
-                        showdf(mntdir, &stat_buf, uuid_buf.uuid, ishow, cooked,
-                               "MDT", index, rc);
-                } else {
-                        fprintf(stderr,
-                                "error: llapi_obd_statfs(%s): %s (%d)\n",
-                                uuid_buf.uuid, strerror(-rc), rc);
-                        return rc;
-                }
-                if (rc == 0) {
-                        sum.os_ffree += stat_buf.os_ffree;
-                        sum.os_files += stat_buf.os_files;
-                }
-        }
-
-        for (index = 0; ; index++) {
-                memset(&stat_buf, 0, sizeof(struct obd_statfs));
-                memset(&uuid_buf, 0, sizeof(struct obd_uuid));
-                rc = llapi_obd_statfs(mntdir, LL_STATFS_LOV, index,
-                                      &stat_buf, &uuid_buf);
-                if (rc == -ENODEV)
-                        break;
+        for (tp = types; tp->st_name != NULL; tp++) {
+                for (index = 0; ; index++) {
+                        memset(&stat_buf, 0, sizeof(struct obd_statfs));
+                        memset(&uuid_buf, 0, sizeof(struct obd_uuid));
+                        rc = llapi_obd_statfs(mntdir, tp->st_op, index,
+                                              &stat_buf, &uuid_buf);
+                        if (rc == -ENODEV)
+                                break;
 
-                if (rc == -EAGAIN)
-                        continue;
+                        if (poolname && tp->st_op == LL_STATFS_LOV &&
+                            llapi_search_ost(fsname, poolname,
+                                             obd_uuid2str(&uuid_buf)) != 1)
+                                continue;
 
-                if (rc == -ENOTCONN || rc == -ETIMEDOUT || rc == -EIO ||
-                    rc == -ENODATA || rc == 0) {
-                        showdf(mntdir, &stat_buf, uuid_buf.uuid, ishow, cooked,
-                               "OST", index, rc);
-                } else {
-                        fprintf(stderr,
-                                "error: llapi_obd_statfs failed: %s (%d)\n",
-                                strerror(-rc), rc);
-                        return rc;
-                }
-                if (rc == 0) {
-                        sum.os_blocks += stat_buf.os_blocks * stat_buf.os_bsize;
-                        sum.os_bfree  += stat_buf.os_bfree * stat_buf.os_bsize;
-                        sum.os_bavail += stat_buf.os_bavail * stat_buf.os_bsize;
+                        /* the llapi_obd_statfs() call may have returned with
+                         * an error, but if it filled in uuid_buf we will at
+                         * lease use that to print out a message for that OBD.
+                         * If we didn't get anything in the uuid_buf, then fill
+                         * it in so that we can print an error message. */
+                        if (uuid_buf.uuid[0] == '\0')
+                                sprintf(uuid_buf.uuid, "%s%04x",
+                                       tp->st_name, index);
+                       showdf(mntdir,&stat_buf,obd_uuid2str(&uuid_buf),
+                              ishow, cooked, tp->st_name, index, rc);
+
+                        if (rc == 0) {
+                                if (tp->st_op == LL_STATFS_MDC) {
+                                        sum.os_ffree += stat_buf.os_ffree;
+                                        sum.os_files += stat_buf.os_files;
+                                } else /* if (tp->st_op == LL_STATFS_LOV) */ {
+                                        sum.os_blocks += stat_buf.os_blocks *
+                                                stat_buf.os_bsize;
+                                        sum.os_bfree  += stat_buf.os_bfree *
+                                                stat_buf.os_bsize;
+                                        sum.os_bavail += stat_buf.os_bavail *
+                                                stat_buf.os_bsize;
+                                }
+                        } else if (rc == -EINVAL || rc == -EFAULT) {
+                                break;
+                        }
                 }
         }
 
         printf("\n");
         showdf(mntdir, &sum, "filesystem summary:", ishow, cooked, NULL, 0,0);
-
+        printf("\n");
         return 0;
 }
 
 static int lfs_df(int argc, char **argv)
 {
-        FILE *fp;
-        char *path = NULL;
-        struct mntent *mnt = NULL;
-        char *mntdir = NULL;
+        char mntdir[PATH_MAX] = {'\0'}, path[PATH_MAX] = {'\0'};
         int ishow = 0, cooked = 0;
-        int c, rc = 0;
+        int c, rc = 0, index = 0;
+        char fsname[PATH_MAX] = "", *pool_name = NULL;
+        struct option long_opts[] = {
+                {"pool", required_argument, 0, 'p'},
+                {0, 0, 0, 0}
+        };
 
         optind = 0;
-        while ((c = getopt(argc, argv, "ih")) != -1) {
+        while ((c = getopt_long(argc, argv, "hip:", long_opts, NULL)) != -1) {
                 switch (c) {
                 case 'i':
                         ishow = 1;
@@ -1013,62 +1168,79 @@ static int lfs_df(int argc, char **argv)
                 case 'h':
                         cooked = 1;
                         break;
+                case 'p':
+                        pool_name = optarg;
+                        break;
                 default:
                         return CMD_HELP;
                 }
         }
-        if (optind < argc )
-                path = argv[optind];
-
-        fp = setmntent(MOUNTED, "r");
-        if (fp == NULL) {
+        if (optind < argc && !realpath(argv[optind], path)) {
                 rc = -errno;
-                fprintf(stderr, "error: %s: open %s failed( %s )\n",
-                        argv[0], MOUNTED, strerror(errno));
+                fprintf(stderr, "error: invalid path '%s': %s\n",
+                        argv[optind], strerror(-rc));
                 return rc;
         }
 
-        if ((mntdir = malloc(PATH_MAX)) == NULL) {
-                fprintf(stderr, "error: cannot allocate %d bytes\n",
-                        PATH_MAX);
-                return -ENOMEM;
+        while (!llapi_search_mounts(path, index++, mntdir, fsname)) {
+                /* Check if we have a mount point */
+                if (mntdir[0] == '\0')
+                        continue;
+
+                rc = mntdf(mntdir, fsname, pool_name, ishow, cooked);
+                if (rc || path[0] != '\0')
+                        break;
+                fsname[0] = '\0'; /* avoid matching in next loop */
+                mntdir[0] = '\0'; /* avoid matching in next loop */
         }
-        memset(mntdir, 0, PATH_MAX);
 
-        if (path) {
-                rc = path2mnt(path, fp, mntdir, PATH_MAX);
-                if (rc) {
-                        endmntent(fp);
-                        free(mntdir);
-                        return rc;
-                }
+        return rc;
+}
 
-                rc = mntdf(mntdir, ishow, cooked);
-                printf("\n");
-                endmntent(fp);
-        } else {
-                mnt = getmntent(fp);
-                while (feof(fp) == 0 && ferror(fp) == 0) {
-                        if (llapi_is_lustre_mnt(mnt)) {
-                                rc = mntdf(mnt->mnt_dir, ishow, cooked);
-                                if (rc)
-                                        break;
-                                printf("\n");
+static int lfs_getname(int argc, char **argv)
+{
+        char mntdir[PATH_MAX] = "", path[PATH_MAX] = "", fsname[PATH_MAX] = "";
+        int rc = 0, index = 0, c;
+        char buf[sizeof(struct obd_uuid)];
+
+        optind = 0;
+        while ((c = getopt(argc, argv, "h")) != -1)
+                return CMD_HELP;
+
+        if (optind == argc) { /* no paths specified, get all paths. */
+                while (!llapi_search_mounts(path, index++, mntdir, fsname)) {
+                        rc = llapi_getname(mntdir, buf, sizeof(buf));
+                        if (rc < 0) {
+                                fprintf(stderr,
+                                        "cannot get name for `%s': %s\n",
+                                        mntdir, strerror(-rc));
+                                break;
                         }
-                        mnt = getmntent(fp);
+
+                        printf("%s %s\n", buf, mntdir);
+
+                        path[0] = fsname[0] = mntdir[0] = 0;
                 }
-                endmntent(fp);
-        }
+        } else { /* paths specified, only attempt to search these. */
+                for (; optind < argc; optind++) {
+                        rc = llapi_getname(argv[optind], buf, sizeof(buf));
+                        if (rc < 0) {
+                                fprintf(stderr,
+                                        "cannot get name for `%s': %s\n",
+                                        argv[optind], strerror(-rc));
+                                break;
+                        }
 
-        free(mntdir);
+                        printf("%s %s\n", buf, argv[optind]);
+                }
+        }
         return rc;
 }
 
 static int lfs_check(int argc, char **argv)
 {
         int rc;
-        FILE *fp;
-        struct mntent *mnt = NULL;
+        char mntdir[PATH_MAX] = {'\0'};
         int num_types = 1;
         char *obd_types[2];
         char obd_type1[4];
@@ -1094,26 +1266,14 @@ static int lfs_check(int argc, char **argv)
                         return CMD_HELP;
         }
 
-        fp = setmntent(MOUNTED, "r");
-        if (fp == NULL) {
-                 fprintf(stderr, "setmntent(%s): %s:", MOUNTED,
-                        strerror (errno));
-        } else {
-                mnt = getmntent(fp);
-                while (feof(fp) == 0 && ferror(fp) ==0) {
-                        if (llapi_is_lustre_mnt(mnt))
-                                break;
-                        mnt = getmntent(fp);
-                }
-                endmntent(fp);
-        }
-
-        if (!mnt) {
+        rc = llapi_search_mounts(NULL, 0, mntdir, NULL);
+        if (rc < 0 || mntdir[0] == '\0') {
                 fprintf(stderr, "No suitable Lustre mount found\n");
-                return -1;
+                return rc;
         }
 
-        rc = llapi_target_check(num_types, obd_types, mnt->mnt_dir);
+        rc = llapi_target_iterate(num_types, obd_types,
+                                  mntdir, llapi_ping_target);
 
         if (rc)
                 fprintf(stderr, "error: %s: %s status failed\n",
@@ -1125,8 +1285,7 @@ static int lfs_check(int argc, char **argv)
 
 static int lfs_catinfo(int argc, char **argv)
 {
-        FILE *fp;
-        struct mntent *mnt = NULL;
+        char mntdir[PATH_MAX] = {'\0'};
         int rc;
 
         if (argc < 2 || (!strcmp(argv[1],"config") && argc < 3))
@@ -1135,25 +1294,12 @@ static int lfs_catinfo(int argc, char **argv)
         if (strcmp(argv[1], "config") && strcmp(argv[1], "deletions"))
                 return CMD_HELP;
 
-        fp = setmntent(MOUNTED, "r");
-        if (fp == NULL) {
-                 fprintf(stderr, "setmntent(%s): %s:", MOUNTED,
-                         strerror(errno));
-        } else {
-                mnt = getmntent(fp);
-                while (feof(fp) == 0 && ferror(fp) == 0) {
-                        if (llapi_is_lustre_mnt(mnt))
-                                break;
-                        mnt = getmntent(fp);
-                }
-                endmntent(fp);
-        }
-
-        if (mnt) {
+        rc = llapi_search_mounts(NULL, 0, mntdir, NULL);
+        if (rc == 0 && mntdir[0] != '\0') {
                 if (argc == 3)
-                        rc = llapi_catinfo(mnt->mnt_dir, argv[1], argv[2]);
+                        rc = llapi_catinfo(mntdir, argv[1], argv[2]);
                 else
-                        rc = llapi_catinfo(mnt->mnt_dir, argv[1], NULL);
+                        rc = llapi_catinfo(mntdir, argv[1], NULL);
         } else {
                 fprintf(stderr, "no lustre_lite mounted.\n");
                 rc = -1;
@@ -1162,40 +1308,14 @@ static int lfs_catinfo(int argc, char **argv)
         return rc;
 }
 
-int lfs_join(int argc, char **argv)
+static int lfs_join(int argc, char **argv)
 {
-        char *name_head, *name_tail;
-        int fd, rc;
-        loff_t size;
-
-        if (argc != 3)
-                return CMD_HELP;
-        name_head = argv[1];
-        fd = open(name_head, O_WRONLY);
-        if (fd < 0) {
-                fprintf(stderr, "Can not open name_head %s rc=%d\n",
-                        name_head, fd);
-                return fd;
-        }
-        size = lseek(fd, 0, SEEK_END);
-        if (size % JOIN_FILE_ALIGN) {
-                fprintf(stderr,"head file %s size %llu must be mutiple of %d\n",
-                        name_head, (long long)size, JOIN_FILE_ALIGN);
-                rc = -EINVAL;
-                goto out;
-        }
-        name_tail = argv[2];
-        rc = ioctl(fd, LL_IOC_JOIN, name_tail);
-out:
-        close(fd);
-        if (rc) {
-                fprintf(stderr, "Lustre joining files: %s, %s, failed\n",
-                        argv[1], argv[2]);
-        }
-        return rc;
+        fprintf(stderr, "join two lustre files into one.\n"
+                        "obsolete, HEAD does not support it anymore.\n");
+        return 0;
 }
 
-#ifdef HAVE_QUOTA_SUPPORT
+#ifdef HAVE_SYS_QUOTA_H
 static int lfs_quotachown(int argc, char **argv)
 {
 
@@ -1222,21 +1342,19 @@ static int lfs_quotachown(int argc, char **argv)
         return rc;
 }
 
-
 static int lfs_quotacheck(int argc, char **argv)
 {
         int c, check_type = 0;
         char *mnt;
         struct if_quotacheck qchk;
         struct if_quotactl qctl;
-        char *obd_type = qchk.obd_type;
-        char *obd_uuid = qchk.obd_uuid.uuid;
+        char *obd_type = (char *)qchk.obd_type;
         int rc;
 
         memset(&qchk, 0, sizeof(qchk));
 
         optind = 0;
-        while ((c = getopt(argc, argv, "ug")) != -1) {
+        while ((c = getopt(argc, argv, "gu")) != -1) {
                 switch (c) {
                 case 'u':
                         check_type |= 0x01;
@@ -1261,41 +1379,31 @@ static int lfs_quotacheck(int argc, char **argv)
 
         mnt = argv[optind];
 
-        memset(&qctl, 0, sizeof(qctl));
-        qctl.qc_cmd = LUSTRE_Q_QUOTAOFF;
-        qctl.qc_id = QFMT_LDISKFS;
-        qctl.qc_type = check_type;
-        rc = llapi_quotactl(mnt, &qctl);
-        if (rc) {
-                fprintf(stderr, "quota off failed: %s\n", strerror(errno));
-                return rc;
-        }
-
         rc = llapi_quotacheck(mnt, check_type);
         if (rc) {
-                fprintf(stderr, "quotacheck failed: %s\n", strerror(errno));
+                fprintf(stderr, "quotacheck failed: %s\n", strerror(-rc));
                 return rc;
         }
 
         rc = llapi_poll_quotacheck(mnt, &qchk);
         if (rc) {
                 if (*obd_type)
-                        fprintf(stderr, "%s %s ", obd_type, obd_uuid);
-                fprintf(stderr, "quota check failed: %s\n", strerror(errno));
+                        fprintf(stderr, "%s %s ", obd_type,
+                                obd_uuid2str(&qchk.obd_uuid));
+                fprintf(stderr, "quota check failed: %s\n", strerror(-rc));
                 return rc;
         }
 
         memset(&qctl, 0, sizeof(qctl));
         qctl.qc_cmd = LUSTRE_Q_QUOTAON;
-        qctl.qc_id = QFMT_LDISKFS;
         qctl.qc_type = check_type;
         rc = llapi_quotactl(mnt, &qctl);
-        if (rc) {
+        if (rc && rc != -EALREADY) {
                 if (*obd_type)
-                        fprintf(stderr, "%s %s ",
-                                qctl.obd_type, qctl.obd_uuid.uuid);
+                        fprintf(stderr, "%s %s ", (char *)qctl.obd_type,
+                                obd_uuid2str(&qctl.obd_uuid));
                 fprintf(stderr, "%s turn on quota failed: %s\n",
-                        argv[0], strerror(errno));
+                        argv[0], strerror(-rc));
                 return rc;
         }
 
@@ -1307,16 +1415,14 @@ static int lfs_quotaon(int argc, char **argv)
         int c;
         char *mnt;
         struct if_quotactl qctl;
-        char *obd_type = qctl.obd_type;
-        char *obd_uuid = qctl.obd_uuid.uuid;
+        char *obd_type = (char *)qctl.obd_type;
         int rc;
 
         memset(&qctl, 0, sizeof(qctl));
         qctl.qc_cmd = LUSTRE_Q_QUOTAON;
-        qctl.qc_id = QFMT_LDISKFS;
 
         optind = 0;
-        while ((c = getopt(argc, argv, "ugf")) != -1) {
+        while ((c = getopt(argc, argv, "fgu")) != -1) {
                 switch (c) {
                 case 'u':
                         qctl.qc_type |= 0x01;
@@ -1346,13 +1452,21 @@ static int lfs_quotaon(int argc, char **argv)
 
         rc = llapi_quotactl(mnt, &qctl);
         if (rc) {
-                if (*obd_type)
-                        fprintf(stderr, "%s %s ", obd_type, obd_uuid);
-                fprintf(stderr, "%s failed: %s\n", argv[0], strerror(errno));
-                return rc;
+                if (rc == -EALREADY) {
+                        rc = 0;
+                } else if (rc == -ENOENT) {
+                        fprintf(stderr, "error: cannot find quota database, "
+                                        "make sure you have run quotacheck\n");
+                } else {
+                        if (*obd_type)
+                                fprintf(stderr, "%s %s ", obd_type,
+                                        obd_uuid2str(&qctl.obd_uuid));
+                        fprintf(stderr, "%s failed: %s\n", argv[0],
+                                strerror(-rc));
+                }
         }
 
-        return 0;
+        return rc;
 }
 
 static int lfs_quotaoff(int argc, char **argv)
@@ -1360,15 +1474,14 @@ static int lfs_quotaoff(int argc, char **argv)
         int c;
         char *mnt;
         struct if_quotactl qctl;
-        char *obd_type = qctl.obd_type;
-        char *obd_uuid = qctl.obd_uuid.uuid;
+        char *obd_type = (char *)qctl.obd_type;
         int rc;
 
         memset(&qctl, 0, sizeof(qctl));
         qctl.qc_cmd = LUSTRE_Q_QUOTAOFF;
 
         optind = 0;
-        while ((c = getopt(argc, argv, "ug")) != -1) {
+        while ((c = getopt(argc, argv, "gu")) != -1) {
                 switch (c) {
                 case 'u':
                         qctl.qc_type |= 0x01;
@@ -1395,36 +1508,89 @@ static int lfs_quotaoff(int argc, char **argv)
 
         rc = llapi_quotactl(mnt, &qctl);
         if (rc) {
-                if (*obd_type)
-                        fprintf(stderr, "%s %s ", obd_type, obd_uuid);
-                fprintf(stderr, "quotaoff failed: %s\n", strerror(errno));
-                return rc;
+                if (rc == -EALREADY) {
+                        rc = 0;
+                } else {
+                        if (*obd_type)
+                                fprintf(stderr, "%s %s ", obd_type,
+                                        obd_uuid2str(&qctl.obd_uuid));
+                        fprintf(stderr, "quotaoff failed: %s\n",
+                                strerror(-rc));
+                }
         }
 
-        return 0;
+        return rc;
 }
 
-#define ARG2INT(nr, str, msg)                                           \
-do {                                                                    \
-        char *endp;                                                     \
-        nr = strtol(str, &endp, 0);                                     \
-        if (*endp) {                                                    \
-                fprintf(stderr, "error: bad %s: %s\n", msg, str);       \
-                return CMD_HELP;                                        \
-        }                                                               \
-} while (0)
+static int lfs_quotainv(int argc, char **argv)
+{
+        int c;
+        char *mnt;
+        struct if_quotactl qctl;
+        int rc;
 
-#define ADD_OVERFLOW(a,b) ((a + b) < a) ? (a = ULONG_MAX) : (a = a + b)
+        memset(&qctl, 0, sizeof(qctl));
+        qctl.qc_cmd = LUSTRE_Q_INVALIDATE;
 
-/* Convert format time string "XXwXXdXXhXXmXXs" into seconds value
+        optind = 0;
+        while ((c = getopt(argc, argv, "fgu")) != -1) {
+                switch (c) {
+                case 'u':
+                        qctl.qc_type |= 0x01;
+                        break;
+                case 'g':
+                        qctl.qc_type |= 0x02;
+                        break;
+                case 'f':
+                        qctl.qc_cmd = LUSTRE_Q_FINVALIDATE;
+                        break;
+                default:
+                        fprintf(stderr, "error: %s: option '-%c' "
+                                        "unrecognized\n", argv[0], c);
+                        return CMD_HELP;
+                }
+        }
+
+        if (qctl.qc_type)
+                qctl.qc_type--;
+        else /* by default, invalidate quota for both user & group */
+                qctl.qc_type = 0x02;
+
+        if (argc == optind)
+                return CMD_HELP;
+
+        mnt = argv[optind];
+
+        rc = llapi_quotactl(mnt, &qctl);
+        if (rc) {
+                fprintf(stderr, "quotainv failed: %s\n", strerror(-rc));
+                return rc;
+        }
+
+        return 0;
+}
+
+#define ARG2INT(nr, str, msg)                                           \
+do {                                                                    \
+        char *endp;                                                     \
+        nr = strtol(str, &endp, 0);                                     \
+        if (*endp) {                                                    \
+                fprintf(stderr, "error: bad %s: %s\n", msg, str);       \
+                return CMD_HELP;                                        \
+        }                                                               \
+} while (0)
+
+#define ADD_OVERFLOW(a,b) ((a + b) < a) ? (a = ULONG_MAX) : (a = a + b)
+
+/* Convert format time string "XXwXXdXXhXXmXXs" into seconds value
  * returns the value or ULONG_MAX on integer overflow or incorrect format
  * Notes:
  *        1. the order of specifiers is arbitrary (may be: 5w3s or 3s5w)
  *        2. specifiers may be encountered multiple times (2s3s is 5 seconds)
  *        3. empty integer value is interpreted as 0
  */
-static unsigned long str2sec(const char* timestr) {
+static unsigned long str2sec(const char* timestr)
+{
         const char spec[] = "smhdw";
         const unsigned long mult[] = {1, 60, 60*60, 24*60*60, 7*24*60*60};
         unsigned long val = 0;
@@ -1445,7 +1611,7 @@ static unsigned long str2sec(const char* timestr) {
 
                 v = strtoul(timestr, &tail, 10);
                 if (v == ULONG_MAX || *tail == '\0')
-                        /* value too large (ULONG_MAX or more) 
+                        /* value too large (ULONG_MAX or more)
                            or missing specifier */
                         goto error;
 
@@ -1473,88 +1639,247 @@ error:
         return ULONG_MAX;
 }
 
-int lfs_setquota(int argc, char **argv)
+#define ARG2ULL(nr, str, def_units)                                     \
+do {                                                                    \
+        unsigned long long limit, units = def_units;                    \
+        int rc;                                                         \
+                                                                        \
+        rc = parse_size(str, &limit, &units, 1);                        \
+        if (rc < 0) {                                                   \
+                fprintf(stderr, "error: bad limit value %s\n", str);    \
+                return CMD_HELP;                                        \
+        }                                                               \
+        nr = limit;                                                     \
+} while (0)
+
+static inline int has_times_option(int argc, char **argv)
 {
-        int c;
-        char *mnt;
+        int i;
+
+        for (i = 1; i < argc; i++)
+                if (!strcmp(argv[i], "-t"))
+                        return 1;
+
+        return 0;
+}
+
+int lfs_setquota_times(int argc, char **argv)
+{
+        int c, rc;
         struct if_quotactl qctl;
-        char *obd_type = qctl.obd_type;
-        char *obd_uuid = qctl.obd_uuid.uuid;
-        int rc;
+        char *mnt, *obd_type = (char *)qctl.obd_type;
+        struct obd_dqblk *dqb = &qctl.qc_dqblk;
+        struct obd_dqinfo *dqi = &qctl.qc_dqinfo;
+        struct option long_opts[] = {
+                {"block-grace",     required_argument, 0, 'b'},
+                {"group",           no_argument,       0, 'g'},
+                {"inode-grace",     required_argument, 0, 'i'},
+                {"times",           no_argument,       0, 't'},
+                {"user",            no_argument,       0, 'u'},
+                {0, 0, 0, 0}
+        };
 
         memset(&qctl, 0, sizeof(qctl));
-        qctl.qc_cmd = LUSTRE_Q_SETQUOTA;
+        qctl.qc_cmd  = LUSTRE_Q_SETINFO;
+        qctl.qc_type = UGQUOTA;
 
         optind = 0;
-        while ((c = getopt(argc, argv, "ugt")) != -1) {
+        while ((c = getopt_long(argc, argv, "b:gi:tu", long_opts, NULL)) != -1) {
                 switch (c) {
                 case 'u':
-                        qctl.qc_type |= 0x01;
-                        break;
                 case 'g':
-                        qctl.qc_type |= 0x02;
+                        if (qctl.qc_type != UGQUOTA) {
+                                fprintf(stderr, "error: -u and -g can't be used "
+                                                "more than once\n");
+                                return CMD_HELP;
+                        }
+                        qctl.qc_type = (c == 'u') ? USRQUOTA : GRPQUOTA;
                         break;
-                case 't':
-                        qctl.qc_cmd = LUSTRE_Q_SETINFO;
+                case 'b':
+                        if ((dqi->dqi_bgrace = str2sec(optarg)) == ULONG_MAX) {
+                                fprintf(stderr, "error: bad block-grace: %s\n",
+                                        optarg);
+                                return CMD_HELP;
+                        }
+                        dqb->dqb_valid |= QIF_BTIME;
                         break;
-                default:
-                        fprintf(stderr, "error: %s: option '-%c' "
-                                        "unrecognized\n", argv[0], c);
+                case 'i':
+                        if ((dqi->dqi_igrace = str2sec(optarg)) == ULONG_MAX) {
+                                fprintf(stderr, "error: bad inode-grace: %s\n",
+                                        optarg);
+                                return CMD_HELP;
+                        }
+                        dqb->dqb_valid |= QIF_ITIME;
+                        break;
+                case 't': /* Yes, of course! */
+                        break;
+                default: /* getopt prints error message for us when opterr != 0 */
                         return CMD_HELP;
                 }
         }
 
-        if (qctl.qc_type)
-                qctl.qc_type--;
-
         if (qctl.qc_type == UGQUOTA) {
-                fprintf(stderr, "error: user and group quotas can't be set "
-                                "both\n");
+                fprintf(stderr, "error: neither -u nor -g specified\n");
                 return CMD_HELP;
         }
 
-        if (qctl.qc_cmd == LUSTRE_Q_SETQUOTA) {
-                struct obd_dqblk *dqb = &qctl.qc_dqblk;
+        if (optind != argc - 1) {
+                fprintf(stderr, "error: unexpected parameters encountered\n");
+                return CMD_HELP;
+        }
 
-                if (optind + 6 != argc)
-                        return CMD_HELP;
+        mnt = argv[optind];
+        rc = llapi_quotactl(mnt, &qctl);
+        if (rc) {
+                if (*obd_type)
+                        fprintf(stderr, "%s %s ", obd_type,
+                                obd_uuid2str(&qctl.obd_uuid));
+                fprintf(stderr, "setquota failed: %s\n", strerror(-rc));
+                return rc;
+        }
 
-                rc = name2id(&qctl.qc_id, argv[optind++], qctl.qc_type);
-                if (rc) {
-                        fprintf(stderr, "error: find id for name %s failed: %s\n",
-                                argv[optind - 1], strerror(errno));
+        return 0;
+}
+
+#define BSLIMIT (1 << 0)
+#define BHLIMIT (1 << 1)
+#define ISLIMIT (1 << 2)
+#define IHLIMIT (1 << 3)
+
+int lfs_setquota(int argc, char **argv)
+{
+        int c, rc;
+        struct if_quotactl qctl;
+        char *mnt, *obd_type = (char *)qctl.obd_type;
+        struct obd_dqblk *dqb = &qctl.qc_dqblk;
+        struct option long_opts[] = {
+                {"block-softlimit", required_argument, 0, 'b'},
+                {"block-hardlimit", required_argument, 0, 'B'},
+                {"group",           required_argument, 0, 'g'},
+                {"inode-softlimit", required_argument, 0, 'i'},
+                {"inode-hardlimit", required_argument, 0, 'I'},
+                {"user",            required_argument, 0, 'u'},
+                {0, 0, 0, 0}
+        };
+        unsigned limit_mask = 0;
+        char *endptr;
+
+        if (has_times_option(argc, argv))
+                return lfs_setquota_times(argc, argv);
+
+        memset(&qctl, 0, sizeof(qctl));
+        qctl.qc_cmd  = LUSTRE_Q_SETQUOTA;
+        qctl.qc_type = UGQUOTA; /* UGQUOTA makes no sense for setquota,
+                                 * so it can be used as a marker that qc_type
+                                 * isn't reinitialized from command line */
+
+        optind = 0;
+        while ((c = getopt_long(argc, argv, "b:B:g:i:I:u:", long_opts, NULL)) != -1) {
+                switch (c) {
+                case 'u':
+                case 'g':
+                        if (qctl.qc_type != UGQUOTA) {
+                                fprintf(stderr, "error: -u and -g can't be used"
+                                                " more than once\n");
+                                return CMD_HELP;
+                        }
+                        qctl.qc_type = (c == 'u') ? USRQUOTA : GRPQUOTA;
+                        rc = name2id(&qctl.qc_id, optarg,
+                                     (qctl.qc_type == USRQUOTA) ? USER : GROUP);
+                        if (rc) {
+                                qctl.qc_id = strtoul(optarg, &endptr, 10);
+                                if (*endptr != '\0') {
+                                        fprintf(stderr, "error: can't find id "
+                                                "for name %s\n", optarg);
+                                        return CMD_HELP;
+                                }
+                        }
+                        break;
+                case 'b':
+                        ARG2ULL(dqb->dqb_bsoftlimit, optarg, 1024);
+                        dqb->dqb_bsoftlimit >>= 10;
+                        limit_mask |= BSLIMIT;
+                        break;
+                case 'B':
+                        ARG2ULL(dqb->dqb_bhardlimit, optarg, 1024);
+                        dqb->dqb_bhardlimit >>= 10;
+                        limit_mask |= BHLIMIT;
+                        break;
+                case 'i':
+                        ARG2ULL(dqb->dqb_isoftlimit, optarg, 1);
+                        limit_mask |= ISLIMIT;
+                        break;
+                case 'I':
+                        ARG2ULL(dqb->dqb_ihardlimit, optarg, 1);
+                        limit_mask |= IHLIMIT;
+                        break;
+                default: /* getopt prints error message for us when opterr != 0 */
                         return CMD_HELP;
                 }
+        }
 
-                ARG2INT(dqb->dqb_bsoftlimit, argv[optind++], "block-softlimit");
-                ARG2INT(dqb->dqb_bhardlimit, argv[optind++], "block-hardlimit");
-                ARG2INT(dqb->dqb_isoftlimit, argv[optind++], "inode-softlimit");
-                ARG2INT(dqb->dqb_ihardlimit, argv[optind++], "inode-hardlimit");
+        if (qctl.qc_type == UGQUOTA) {
+                fprintf(stderr, "error: neither -u nor -g was specified\n");
+                return CMD_HELP;
+        }
 
-                dqb->dqb_valid = QIF_LIMITS;
-        } else {
-                struct obd_dqinfo *dqi = &qctl.qc_dqinfo;
+        if (limit_mask == 0) {
+                fprintf(stderr, "error: at least one limit must be specified\n");
+                return CMD_HELP;
+        }
 
-                if (optind + 3 != argc)
-                        return CMD_HELP;
+        if (optind != argc - 1) {
+                fprintf(stderr, "error: unexpected parameters encountered\n");
+                return CMD_HELP;
+        }
 
-                if ((dqi->dqi_bgrace = str2sec(argv[optind++])) == ULONG_MAX) {
-                        fprintf(stderr, "error: bad %s: %s\n", "block-grace", argv[optind - 1]);
-                        return CMD_HELP;
+        mnt = argv[optind];
+
+        if ((!(limit_mask & BHLIMIT) ^ !(limit_mask & BSLIMIT)) ||
+            (!(limit_mask & IHLIMIT) ^ !(limit_mask & ISLIMIT))) {
+                /* sigh, we can't just set blimits/ilimits */
+                struct if_quotactl tmp_qctl = {.qc_cmd  = LUSTRE_Q_GETQUOTA,
+                                               .qc_type = qctl.qc_type,
+                                               .qc_id   = qctl.qc_id};
+
+                rc = llapi_quotactl(mnt, &tmp_qctl);
+                if (rc < 0) {
+                        fprintf(stderr, "error: setquota failed while retrieving"
+                                        " current quota settings (%s)\n",
+                                        strerror(-rc));
+                        return rc;
                 }
-                if ((dqi->dqi_igrace = str2sec(argv[optind++])) == ULONG_MAX) {
-                        fprintf(stderr, "error: bad %s: %s\n", "inode-grace", argv[optind - 1]);
-                        return CMD_HELP;
+
+                if (!(limit_mask & BHLIMIT))
+                        dqb->dqb_bhardlimit = tmp_qctl.qc_dqblk.dqb_bhardlimit;
+                if (!(limit_mask & BSLIMIT))
+                        dqb->dqb_bsoftlimit = tmp_qctl.qc_dqblk.dqb_bsoftlimit;
+                if (!(limit_mask & IHLIMIT))
+                        dqb->dqb_ihardlimit = tmp_qctl.qc_dqblk.dqb_ihardlimit;
+                if (!(limit_mask & ISLIMIT))
+                        dqb->dqb_isoftlimit = tmp_qctl.qc_dqblk.dqb_isoftlimit;
+
+                /* Keep grace times if we have got no softlimit arguments */
+                if ((limit_mask & BHLIMIT) && !(limit_mask & BSLIMIT)) {
+                        dqb->dqb_valid |= QIF_BTIME;
+                        dqb->dqb_btime = tmp_qctl.qc_dqblk.dqb_btime;
+                }
+
+                if ((limit_mask & IHLIMIT) && !(limit_mask & ISLIMIT)) {
+                        dqb->dqb_valid |= QIF_ITIME;
+                        dqb->dqb_itime = tmp_qctl.qc_dqblk.dqb_itime;
                 }
         }
 
-        mnt = argv[optind];
+        dqb->dqb_valid |= (limit_mask & (BHLIMIT | BSLIMIT)) ? QIF_BLIMITS : 0;
+        dqb->dqb_valid |= (limit_mask & (IHLIMIT | ISLIMIT)) ? QIF_ILIMITS : 0;
 
         rc = llapi_quotactl(mnt, &qctl);
         if (rc) {
                 if (*obd_type)
-                        fprintf(stderr, "%s %s ", obd_type, obd_uuid);
-                fprintf(stderr, "setquota failed: %s\n", strerror(errno));
+                        fprintf(stderr, "%s %s ", obd_type,
+                                obd_uuid2str(&qctl.obd_uuid));
+                fprintf(stderr, "setquota failed: %s\n", strerror(-rc));
                 return rc;
         }
 
@@ -1571,7 +1896,6 @@ static inline char *type2name(int check_type)
                 return "unknown";
 }
 
-
 /* Converts seconds value into format string
  * result is returned in buf
  * Notes:
@@ -1579,12 +1903,12 @@ static inline char *type2name(int check_type)
  *        2. zero fields are not filled (except for p. 3): 5d1s
  *        3. zero seconds value is presented as "0s"
  */
-static void sec2str(time_t seconds, char *buf)
+static char * __sec2str(time_t seconds, char *buf)
 {
         const char spec[] = "smhdw";
         const unsigned long mult[] = {1, 60, 60*60, 24*60*60, 7*24*60*60};
         unsigned long c;
-        chartail = buf;
+        char *tail = buf;
         int i;
 
         for (i = sizeof(mult) / sizeof(mult[0]) - 1 ; i >= 0; i--) {
@@ -1595,8 +1919,24 @@ static void sec2str(time_t seconds, char *buf)
 
                 seconds %= mult[i];
         }
+
+        return tail;
 }
 
+static void sec2str(time_t seconds, char *buf, int rc)
+{
+        char *tail = buf;
+
+        if (rc)
+                *tail++ = '[';
+
+        tail = __sec2str(seconds, tail);
+
+        if (rc && tail - buf < 39) {
+                *tail++ = ']';
+                *tail++ = 0;
+        }
+}
 
 static void diff2str(time_t seconds, char *buf, time_t now)
 {
@@ -1608,7 +1948,7 @@ static void diff2str(time_t seconds, char *buf, time_t now)
                 strcpy(buf, "none");
                 return;
         }
-        sec2str(seconds - now, buf);
+        __sec2str(seconds - now, buf);
 }
 
 static void print_quota_title(char *name, struct if_quotactl *qctl)
@@ -1622,7 +1962,7 @@ static void print_quota_title(char *name, struct if_quotactl *qctl)
                "files", "quota", "limit", "grace");
 }
 
-static void print_quota(char *mnt, struct if_quotactl *qctl, int ost_only)
+static void print_quota(char *mnt, struct if_quotactl *qctl, int type, int rc)
 {
         time_t now;
 
@@ -1633,10 +1973,9 @@ static void print_quota(char *mnt, struct if_quotactl *qctl, int ost_only)
                 struct obd_dqblk *dqb = &qctl->qc_dqblk;
 
                 if (dqb->dqb_bhardlimit &&
-                    toqb(dqb->dqb_curspace) > dqb->dqb_bhardlimit) {
+                    toqb(dqb->dqb_curspace) >= dqb->dqb_bhardlimit) {
                         bover = 1;
-                } else if (dqb->dqb_bsoftlimit &&
-                           toqb(dqb->dqb_curspace) > dqb->dqb_bsoftlimit) {
+                } else if (dqb->dqb_bsoftlimit && dqb->dqb_btime) {
                         if (dqb->dqb_btime > now) {
                                 bover = 2;
                         } else {
@@ -1645,10 +1984,9 @@ static void print_quota(char *mnt, struct if_quotactl *qctl, int ost_only)
                 }
 
                 if (dqb->dqb_ihardlimit &&
-                    dqb->dqb_curinodes > dqb->dqb_ihardlimit) {
+                    dqb->dqb_curinodes >= dqb->dqb_ihardlimit) {
                         iover = 1;
-                } else if (dqb->dqb_isoftlimit &&
-                           dqb->dqb_curinodes > dqb->dqb_isoftlimit) {
+                } else if (dqb->dqb_isoftlimit && dqb->dqb_itime) {
                         if (dqb->dqb_btime > now) {
                                 iover = 2;
                         } else {
@@ -1670,24 +2008,45 @@ static void print_quota(char *mnt, struct if_quotactl *qctl, int ost_only)
 
                         if (bover)
                                 diff2str(dqb->dqb_btime, timebuf, now);
-
-                        sprintf(numbuf[0], LPU64, toqb(dqb->dqb_curspace));
-                        sprintf(numbuf[1], LPU64, dqb->dqb_bsoftlimit);
-                        sprintf(numbuf[2], LPU64, dqb->dqb_bhardlimit);
+                        if (rc == -EREMOTEIO)
+                                sprintf(numbuf[0], LPU64"*",
+                                        toqb(dqb->dqb_curspace));
+                        else
+                                sprintf(numbuf[0],
+                                        (dqb->dqb_valid & QIF_SPACE) ?
+                                        LPU64 : "["LPU64"]",
+                                        toqb(dqb->dqb_curspace));
+                        if (type == QC_GENERAL)
+                                sprintf(numbuf[1], (dqb->dqb_valid & QIF_BLIMITS)
+                                        ? LPU64 : "["LPU64"]",
+                                        dqb->dqb_bsoftlimit);
+                        else
+                                sprintf(numbuf[1], "%s", "-");
+                        sprintf(numbuf[2], (dqb->dqb_valid & QIF_BLIMITS)
+                                ? LPU64 : "["LPU64"]", dqb->dqb_bhardlimit);
                         printf(" %7s%c %6s %7s %7s",
                                numbuf[0], bover ? '*' : ' ', numbuf[1],
-                               numbuf[2], bover > 1 ? timebuf : "");
+                               numbuf[2], bover > 1 ? timebuf : "-");
 
                         if (iover)
                                 diff2str(dqb->dqb_itime, timebuf, now);
 
-                        sprintf(numbuf[0], LPU64, dqb->dqb_curinodes);
-                        sprintf(numbuf[1], LPU64, dqb->dqb_isoftlimit);
-                        sprintf(numbuf[2], LPU64, dqb->dqb_ihardlimit);
-                        if (!ost_only)
+                        sprintf(numbuf[0], (dqb->dqb_valid & QIF_INODES) ?
+                                LPU64 : "["LPU64"]", dqb->dqb_curinodes);
+                       if (type == QC_GENERAL)
+                                sprintf(numbuf[1], (dqb->dqb_valid & QIF_ILIMITS)
+                                        ? LPU64 : "["LPU64"]",
+                                        dqb->dqb_isoftlimit);
+                        else
+                                sprintf(numbuf[1], "%s", "-");
+                        sprintf(numbuf[2], (dqb->dqb_valid & QIF_ILIMITS) ?
+                                LPU64 : "["LPU64"]", dqb->dqb_ihardlimit);
+                        if (type != QC_OSTIDX)
                                 printf(" %7s%c %6s %7s %7s",
                                        numbuf[0], iover ? '*' : ' ', numbuf[1],
-                                       numbuf[2], iover > 1 ? timebuf : "");
+                                       numbuf[2], iover > 1 ? timebuf : "-");
+                        else
+                                printf(" %7s %7s %7s %7s", "-", "-", "-", "-");
                         printf("\n");
                 }
         } else if (qctl->qc_cmd == LUSTRE_Q_GETINFO ||
@@ -1695,110 +2054,101 @@ static void print_quota(char *mnt, struct if_quotactl *qctl, int ost_only)
                 char bgtimebuf[40];
                 char igtimebuf[40];
 
-                sec2str(qctl->qc_dqinfo.dqi_bgrace, bgtimebuf);
-                sec2str(qctl->qc_dqinfo.dqi_igrace, igtimebuf);
+                sec2str(qctl->qc_dqinfo.dqi_bgrace, bgtimebuf, rc);
+                sec2str(qctl->qc_dqinfo.dqi_igrace, igtimebuf, rc);
                 printf("Block grace time: %s; Inode grace time: %s\n",
                        bgtimebuf, igtimebuf);
         }
 }
 
-static void print_mds_quota(char *mnt, struct if_quotactl *qctl)
+static int print_obd_quota(char *mnt, struct if_quotactl *qctl, int is_mdt)
 {
-        int rc;
+        int rc = 0, rc1 = 0, count = 0;
+        __u32 valid = qctl->qc_valid;
 
-        /* XXX: this is a flag to mark that only mds quota is wanted */
-        qctl->qc_dqblk.dqb_valid = 1;
-        rc = llapi_quotactl(mnt, qctl);
+        rc = llapi_get_obd_count(mnt, &count, is_mdt);
         if (rc) {
-                fprintf(stderr, "quotactl failed: %s\n", strerror(errno));
-                return;
-        }
-        qctl->qc_dqblk.dqb_valid = 0;
-
-        print_quota(qctl->obd_uuid.uuid, qctl, 0);
-}
-
-static void print_lov_quota(char *mnt, struct if_quotactl *qctl)
-{
-        DIR *dir;
-        struct obd_uuid *uuids = NULL, *uuidp;
-        int obdcount = 1024;
-        int i, rc;
-
-        dir = opendir(mnt);
-        if (!dir) {
-                fprintf(stderr, "open %s failed: %s\n", mnt, strerror(errno));
-                return;
-        }
-
-        uuids = (struct obd_uuid *)malloc(INIT_ALLOC_NUM_OSTS *
-                                          sizeof(struct obd_uuid));
-        if (uuids == NULL)
-                goto out;
-
-retry_get_uuids:
-        rc = llapi_lov_get_uuids(dirfd(dir), uuids, &obdcount);
-        if (rc != 0) {
-                struct obd_uuid *uuids_temp;
-
-                if (rc == -EOVERFLOW) {
-                        uuids_temp = realloc(uuids, obdcount *
-                                             sizeof(struct obd_uuid));
-                        if (uuids_temp != NULL)
-                                goto retry_get_uuids;
-                        else
-                                rc = -ENOMEM;
-                }
-
-                fprintf(stderr, "get ost uuid failed: %s\n", strerror(rc));
-                goto out;
+                fprintf(stderr, "can not get %s count: %s\n",
+                        is_mdt ? "mdt": "ost", strerror(-rc));
+                return rc;
         }
 
-        for (i = 0, uuidp = uuids; i < obdcount; i++, uuidp++) {
-                memcpy(&qctl->obd_uuid, uuidp, sizeof(*uuidp));
-
-                /* XXX clear this flag to get quota from osts */
-                qctl->qc_dqblk.dqb_valid = 0;
+        for (qctl->qc_idx = 0; qctl->qc_idx < count; qctl->qc_idx++) {
+                qctl->qc_valid = is_mdt ? QC_MDTIDX : QC_OSTIDX;
                 rc = llapi_quotactl(mnt, qctl);
                 if (rc) {
-                        fprintf(stderr, "%s quotactl failed: %s\n",
-                                uuidp->uuid, strerror(errno));
+                        /* It is remote client case. */
+                        if (-rc == EOPNOTSUPP) {
+                                rc = 0;
+                                goto out;
+                        }
+
+                        if (!rc1)
+                                rc1 = rc;
+                        fprintf(stderr, "quotactl %s%d failed.\n",
+                                is_mdt ? "mdt": "ost", qctl->qc_idx);
                         continue;
                 }
 
-                print_quota(uuidp->uuid, qctl, 1);
+                print_quota(obd_uuid2str(&qctl->obd_uuid), qctl, qctl->qc_valid, 0);
         }
 
 out:
-        closedir(dir);
-        return;
+        qctl->qc_valid = valid;
+        return rc ? : rc1;
 }
 
 static int lfs_quota(int argc, char **argv)
 {
         int c;
-        char *name = NULL, *mnt;
+        char *mnt, *name = NULL;
         struct if_quotactl qctl = { .qc_cmd = LUSTRE_Q_GETQUOTA,
-                                    .qc_type = 0x01 };
-        char *obd_type = qctl.obd_type;
-        char *obd_uuid = qctl.obd_uuid.uuid;
-        int rc;
+                                    .qc_type = UGQUOTA };
+        char *obd_type = (char *)qctl.obd_type;
+        char *obd_uuid = (char *)qctl.obd_uuid.uuid;
+        int rc, rc1 = 0, rc2 = 0, rc3 = 0,
+            verbose = 0, pass = 0, quiet = 0, inacc;
+        char *endptr;
+        __u32 valid = QC_GENERAL, idx = 0;
 
         optind = 0;
-        while ((c = getopt(argc, argv, "ugto:")) != -1) {
+        while ((c = getopt(argc, argv, "gi:I:o:qtuv")) != -1) {
                 switch (c) {
                 case 'u':
-                        qctl.qc_type = 0x01;
+                        if (qctl.qc_type != UGQUOTA) {
+                                fprintf(stderr, "error: use either -u or -g\n");
+                                return CMD_HELP;
+                        }
+                        qctl.qc_type = USRQUOTA;
                         break;
                 case 'g':
-                        qctl.qc_type = 0x02;
+                        if (qctl.qc_type != UGQUOTA) {
+                                fprintf(stderr, "error: use either -u or -g\n");
+                                return CMD_HELP;
+                        }
+                        qctl.qc_type = GRPQUOTA;
                         break;
                 case 't':
                         qctl.qc_cmd = LUSTRE_Q_GETINFO;
                         break;
                 case 'o':
+                        valid = qctl.qc_valid = QC_UUID;
                         strncpy(obd_uuid, optarg, sizeof(qctl.obd_uuid));
                         break;
+                case 'i':
+                        valid = qctl.qc_valid = QC_MDTIDX;
+                        idx = qctl.qc_idx = atoi(optarg);
+                        break;
+                case 'I':
+                        valid = qctl.qc_valid = QC_OSTIDX;
+                        idx = qctl.qc_idx = atoi(optarg);
+                        break;
+                case 'v':
+                        verbose = 1;
+                        break;
+                case 'q':
+                        quiet = 1;
+                        break;
                 default:
                         fprintf(stderr, "error: %s: option '-%c' "
                                         "unrecognized\n", argv[0], c);
@@ -1806,57 +2156,100 @@ static int lfs_quota(int argc, char **argv)
                 }
         }
 
-        if (qctl.qc_type)
-                qctl.qc_type--;
-
-
-        if (qctl.qc_cmd == LUSTRE_Q_GETQUOTA) {
-                if (optind + 2 != argc) {
+        /* current uid/gid info for "lfs quota /path/to/lustre/mount" */
+        if (qctl.qc_cmd == LUSTRE_Q_GETQUOTA && qctl.qc_type == UGQUOTA &&
+            optind == argc - 1) {
+ug_output:
+                memset(&qctl, 0, sizeof(qctl)); /* spoiled by print_*_quota */
+                qctl.qc_cmd = LUSTRE_Q_GETQUOTA;
+                qctl.qc_valid = valid;
+                qctl.qc_idx = idx;
+                if (pass++ == 0) {
+                        qctl.qc_type = USRQUOTA;
+                        qctl.qc_id = geteuid();
+                } else {
+                        qctl.qc_type = GRPQUOTA;
+                        qctl.qc_id = getegid();
+                }
+                rc = id2name(&name, qctl.qc_id,
+                             (qctl.qc_type == USRQUOTA) ? USER : GROUP);
+                if (rc)
+                        name = "<unknown>";
+        /* lfs quota -u username /path/to/lustre/mount */
+        } else if (qctl.qc_cmd == LUSTRE_Q_GETQUOTA) {
+                /* options should be followed by u/g-name and mntpoint */
+                if (optind + 2 != argc || qctl.qc_type == UGQUOTA) {
                         fprintf(stderr, "error: missing quota argument(s)\n");
                         return CMD_HELP;
                 }
 
                 name = argv[optind++];
-                rc = name2id(&qctl.qc_id, name, qctl.qc_type);
+                rc = name2id(&qctl.qc_id, name,
+                             (qctl.qc_type == USRQUOTA) ? USER : GROUP);
                 if (rc) {
-                        fprintf(stderr,"error: can't find id for name %s: %s\n",
-                                name, strerror(errno));
-                        return CMD_HELP;
+                        qctl.qc_id = strtoul(name, &endptr, 10);
+                        if (*endptr != '\0') {
+                                fprintf(stderr, "error: can't find id for name "
+                                        "%s\n", name);
+                                return CMD_HELP;
+                        }
                 }
-                print_quota_title(name, &qctl);
-        } else if (optind + 1 != argc) {
+        } else if (optind + 1 != argc || qctl.qc_type == UGQUOTA) {
                 fprintf(stderr, "error: missing quota info argument(s)\n");
                 return CMD_HELP;
         }
 
         mnt = argv[optind];
 
-        rc = llapi_quotactl(mnt, &qctl);
-        if (rc) {
-                if (*obd_type)
-                        fprintf(stderr, "%s %s ", obd_type, obd_uuid);
-                fprintf(stderr, "quota failed: %s\n", strerror(errno));
-                return rc;
+        rc1 = llapi_quotactl(mnt, &qctl);
+        if (rc1 < 0) {
+                switch (rc1) {
+                case -ESRCH:
+                        fprintf(stderr, "%s quotas are not enabled.\n",
+                                qctl.qc_type == USRQUOTA ? "user" : "group");
+                        goto out;
+                case -EPERM:
+                        fprintf(stderr, "Permission denied.\n");
+                case -ENOENT:
+                        /* We already got a "No such file..." message. */
+                        goto out;
+                default:
+                        fprintf(stderr, "Unexpected quotactl error: %s\n",
+                                strerror(-rc1));
+                }
         }
 
-        if (!name)
-                rc = id2name(&name, getuid(), qctl.qc_type);
+        if (qctl.qc_cmd == LUSTRE_Q_GETQUOTA && !quiet)
+                print_quota_title(name, &qctl);
 
-        if (*obd_uuid) {
+        if (rc1 && *obd_type)
+                fprintf(stderr, "%s %s ", obd_type, obd_uuid);
+
+        if (qctl.qc_valid != QC_GENERAL)
                 mnt = "";
-                name = obd_uuid;
-        }
 
-        print_quota(mnt, &qctl, 0);
+        inacc = (qctl.qc_cmd == LUSTRE_Q_GETQUOTA) &&
+                ((qctl.qc_dqblk.dqb_valid&(QIF_LIMITS|QIF_USAGE))!=(QIF_LIMITS|QIF_USAGE));
 
-        if (!*obd_uuid && qctl.qc_cmd != LUSTRE_Q_GETINFO) {
-                print_mds_quota(mnt, &qctl);
-                print_lov_quota(mnt, &qctl);
+        print_quota(mnt, &qctl, QC_GENERAL, rc1);
+
+        if (qctl.qc_valid == QC_GENERAL && qctl.qc_cmd != LUSTRE_Q_GETINFO && verbose) {
+                rc2 = print_obd_quota(mnt, &qctl, 1);
+                rc3 = print_obd_quota(mnt, &qctl, 0);
         }
 
-        return 0;
+        if (rc1 || rc2 || rc3 || inacc)
+                printf("Some errors happened when getting quota info. "
+                       "Some devices may be not working or deactivated. "
+                       "The data in \"[]\" is inaccurate.\n");
+
+out:
+        if (pass == 1)
+                goto ug_output;
+
+        return rc1;
 }
-#endif /* HAVE_QUOTA_SUPPORT */
+#endif /* HAVE_SYS_QUOTA_H! */
 
 static int flushctx_ioctl(char *mp)
 {
@@ -1898,8 +2291,13 @@ static int lfs_flushctx(int argc, char **argv)
                 }
         }
 
-        if (kdestroy)
-                system("kdestroy > /dev/null");
+        if (kdestroy) {
+            int rc;
+            if ((rc = system("kdestroy > /dev/null")) != 0) {
+                rc = WEXITSTATUS(rc);
+                fprintf(stderr, "error destroying tickets: %d, continuing\n", rc);
+            }
+        }
 
         if (optind >= argc) {
                 /* flush for all mounted lustre fs. */
@@ -1978,6 +2376,212 @@ static int lfs_ls(int argc, char **argv)
         return(llapi_ls(argc, argv));
 }
 
+static int lfs_changelog(int argc, char **argv)
+{
+        void *changelog_priv;
+        struct changelog_rec *rec;
+        long long startrec = 0, endrec = 0;
+        char *mdd;
+        struct option long_opts[] = {
+                {"follow", no_argument, 0, 'f'},
+                {0, 0, 0, 0}
+        };
+        char short_opts[] = "f";
+        int rc, follow = 0;
+
+        optind = 0;
+        while ((rc = getopt_long(argc, argv, short_opts,
+                                long_opts, NULL)) != -1) {
+                switch (rc) {
+                case 'f':
+                        follow++;
+                        break;
+                case '?':
+                        return CMD_HELP;
+                default:
+                        fprintf(stderr, "error: %s: option '%s' unrecognized\n",
+                                argv[0], argv[optind - 1]);
+                        return CMD_HELP;
+                }
+        }
+        if (optind >= argc)
+                return CMD_HELP;
+
+        mdd = argv[optind++];
+        if (argc > optind)
+                startrec = strtoll(argv[optind++], NULL, 10);
+        if (argc > optind)
+                endrec = strtoll(argv[optind++], NULL, 10);
+
+        rc = llapi_changelog_start(&changelog_priv,
+                                   CHANGELOG_FLAG_BLOCK |
+                                   (follow ? CHANGELOG_FLAG_FOLLOW : 0),
+                                   mdd, startrec);
+        if (rc < 0) {
+                fprintf(stderr, "Can't start changelog: %s\n",
+                        strerror(errno = -rc));
+                return rc;
+        }
+
+        while ((rc = llapi_changelog_recv(changelog_priv, &rec)) == 0) {
+                time_t secs;
+                struct tm ts;
+
+                if (endrec && rec->cr_index > endrec) {
+                        llapi_changelog_free(&rec);
+                        break;
+                }
+                if (rec->cr_index < startrec) {
+                        llapi_changelog_free(&rec);
+                        continue;
+                }
+
+                secs = rec->cr_time >> 30;
+                gmtime_r(&secs, &ts);
+                printf(LPU64" %02d%-5s %02d:%02d:%02d.%06d %04d.%02d.%02d "
+                       "0x%x t="DFID, rec->cr_index, rec->cr_type,
+                       changelog_type2str(rec->cr_type),
+                       ts.tm_hour, ts.tm_min, ts.tm_sec,
+                       (int)(rec->cr_time & ((1<<30) - 1)),
+                       ts.tm_year+1900, ts.tm_mon+1, ts.tm_mday,
+                       rec->cr_flags & CLF_FLAGMASK, PFID(&rec->cr_tfid));
+                if (rec->cr_namelen)
+                        /* namespace rec includes parent and filename */
+                        printf(" p="DFID" %.*s\n", PFID(&rec->cr_pfid),
+                               rec->cr_namelen, rec->cr_name);
+                else
+                        printf("\n");
+
+                llapi_changelog_free(&rec);
+        }
+
+        llapi_changelog_fini(&changelog_priv);
+
+        if (rc < 0)
+                fprintf(stderr, "Changelog: %s\n", strerror(errno = -rc));
+
+        return (rc == 1 ? 0 : rc);
+}
+
+static int lfs_changelog_clear(int argc, char **argv)
+{
+        long long endrec;
+        int rc;
+
+        if (argc != 4)
+                return CMD_HELP;
+
+        endrec = strtoll(argv[3], NULL, 10);
+
+        rc = llapi_changelog_clear(argv[1], argv[2], endrec);
+        if (rc)
+                fprintf(stderr, "%s error: %s\n", argv[0],
+                        strerror(errno = -rc));
+        return rc;
+}
+
+static int lfs_fid2path(int argc, char **argv)
+{
+        struct option long_opts[] = {
+                {"cur", no_argument, 0, 'c'},
+                {"link", required_argument, 0, 'l'},
+                {"rec", required_argument, 0, 'r'},
+                {0, 0, 0, 0}
+        };
+        char  short_opts[] = "cl:r:";
+        char *device, *fid, *path;
+        long long recno = -1;
+        int linkno = -1;
+        int lnktmp;
+        int printcur = 0;
+        int rc;
+
+        optind = 0;
+
+        while ((rc = getopt_long(argc, argv, short_opts,
+                                long_opts, NULL)) != -1) {
+                switch (rc) {
+                case 'c':
+                        printcur++;
+                        break;
+                case 'l':
+                        linkno = strtol(optarg, NULL, 10);
+                        break;
+                case 'r':
+                        recno = strtoll(optarg, NULL, 10);
+                        break;
+                case '?':
+                        return CMD_HELP;
+                default:
+                        fprintf(stderr, "error: %s: option '%s' unrecognized\n",
+                                argv[0], argv[optind - 1]);
+                        return CMD_HELP;
+                }
+        }
+        device = argv[optind++];
+        fid = argv[optind++];
+        if (optind != argc)
+                return CMD_HELP;
+
+        path = calloc(1, PATH_MAX);
+
+        lnktmp = (linkno >= 0) ? linkno : 0;
+        while (1) {
+                int oldtmp = lnktmp;
+                long long rectmp = recno;
+                rc = llapi_fid2path(device, fid, path, PATH_MAX, &rectmp,
+                                    &lnktmp);
+                if (rc < 0) {
+                        fprintf(stderr, "%s error: %s\n", argv[0],
+                                strerror(errno = -rc));
+                        break;
+                }
+
+                if (printcur)
+                        fprintf(stdout, "%lld ", rectmp);
+                if (device[0] == '/') {
+                        fprintf(stdout, "%s", device);
+                        if (device[strlen(device) - 1] != '/')
+                                fprintf(stdout, "/");
+                } else if (path[0] == '\0') {
+                        fprintf(stdout, "/");
+                }
+                fprintf(stdout, "%s\n", path);
+
+                if (linkno >= 0)
+                        /* specified linkno */
+                        break;
+                if (oldtmp == lnktmp)
+                        /* no more links */
+                        break;
+        }
+
+        free(path);
+        return rc;
+}
+
+static int lfs_path2fid(int argc, char **argv)
+{
+        char *path;
+        lustre_fid fid;
+        int rc;
+
+        if (argc != 2)
+                return CMD_HELP;
+
+        path = argv[1];
+        rc = llapi_path2fid(path, &fid);
+        if (rc) {
+                fprintf(stderr, "can't get fid for %s: %s\n", path,
+                        strerror(errno = -rc));
+                return rc;
+        }
+
+        printf(DFID"\n", PFID(&fid));
+
+        return 0;
+}
+
 int main(int argc, char **argv)
 {
         int rc;
@@ -1999,5 +2603,6 @@ int main(int argc, char **argv)
         }
 
         obd_finalize(argc, argv);
-        return rc;
+        return rc < 0 ? -rc : rc;
 }
+