-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
+/*
+ * GPL HEADER START
*
- * Copyright (C) 2002 Cluster File Systems, Inc.
- * Author: Robert Read <rread@clusterfs.com>
- * Author: Nathan Rutman <nathan@clusterfs.com>
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
- * This file is part of Lustre, http://www.lustre.org.
+ * 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 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 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).
*
- * 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.
+ * 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
*
- * 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.
+ * 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) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Use is subject to license terms.
+ *
+ * Copyright (c) 2011, 2013, Intel Corporation.
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ * Lustre is a trademark of Sun Microsystems, Inc.
+ *
+ * lustre/utils/mount_lustre.c
+ *
+ * Author: Robert Read <rread@clusterfs.com>
+ * Author: Nathan Rutman <nathan@clusterfs.com>
*/
-
+#ifndef _GNU_SOURCE
#define _GNU_SOURCE
+#endif
+#include "mount_utils.h"
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <fcntl.h>
#include <errno.h>
#include <string.h>
-#include <sys/mount.h>
-#include <mntent.h>
-#include <getopt.h>
-#include <sys/utsname.h>
#include "obdctl.h"
#include <lustre_ver.h>
+#include <ctype.h>
+#include <limits.h>
+#include <lustre/lustre_idl.h>
+#if LUSTRE_VERSION_CODE > OBD_OCD_VERSION(2, 10, 51, 0)
+/*
+ * LU-1783
+ * We only #include a kernel level include file here because
+ * important MS_ flag #defines are missing from the SLES version
+ * of sys/mount.h
+ * In the future if SLES updates sys/mount.h to have a more complete
+ * set of flag #defines we should stop including linux/fs.h
+ */
+#warn remove kernel include
+#elif !defined(MS_RDONLY)
+#include <linux/fs.h>
+#endif
+
+#define MAXOPT 4096
+#define MAX_RETRIES 99
int verbose = 0;
-int nomtab = 0;
-int fake = 0;
-int force = 0;
-static char *progname = NULL;
+char *progname = NULL;
void usage(FILE *out)
{
fprintf(out, "%s v"LUSTRE_VERSION_STRING"\n", progname);
fprintf(out, "\nThis mount helper should only be invoked via the "
"mount (8) command,\ne.g. mount -t lustre dev dir\n\n");
- fprintf(out, "usage: %s [-fhnv] [-o <mntopt>] <device> <mountpt>\n",
+ fprintf(out, "usage: %s [-fhnv] [-o <mntopt>] <device> <mountpt>\n",
progname);
- fprintf(out,
+ fprintf(out,
"\t<device>: the disk device, or for a client:\n"
"\t\t<mgmtnid>[:<altmgtnid>...]:/<filesystem>-client\n"
"\t<filesystem>: name of the Lustre filesystem (e.g. lustre1)\n"
"\t<mountpt>: filesystem mountpoint (e.g. /mnt/lustre)\n"
"\t-f|--fake: fake mount (updates /etc/mtab)\n"
- "\t--force: force mount even if already in /etc/mtab\n"
+ "\t-o force|--force: force mount even if already in /etc/mtab\n"
"\t-h|--help: print this usage message\n"
"\t-n|--nomtab: do not update /etc/mtab after mount\n"
"\t-v|--verbose: print verbose config settings\n"
"\t<mntopt>: one or more comma separated of:\n"
"\t\t(no)flock,(no)user_xattr,(no)acl\n"
+ "\t\tabort_recov: abort server recovery handling\n"
"\t\tnosvc: only start MGC/MGS obds\n"
+ "\t\tnomgs: only start target obds, using existing MGS\n"
"\t\texclude=<ostname>[:<ostname>] : colon-separated list of "
"inactive OSTs (e.g. lustre-OST0001)\n"
+ "\t\tretry=<num>: number of times mount is retried by client\n"
+ "\t\tmd_stripe_cache_size=<num>: set the raid stripe cache "
+ "size for the underlying raid if present\n"
);
exit((out != stdout) ? EINVAL : 0);
}
-static int check_mtab_entry(char *spec, char *mtpt, char *type)
-{
- FILE *fp;
- struct mntent *mnt;
-
- fp = setmntent(MOUNTED, "r");
- if (fp == NULL)
- return(0);
-
- while ((mnt = getmntent(fp)) != NULL) {
- if (strcmp(mnt->mnt_fsname, spec) == 0 &&
- strcmp(mnt->mnt_dir, mtpt) == 0 &&
- strcmp(mnt->mnt_type, type) == 0) {
- endmntent(fp);
- return(EEXIST);
- }
- }
- endmntent(fp);
-
- return(0);
-}
-
-static int
-update_mtab_entry(char *spec, char *mtpt, char *type, char *opts,
- int flags, int freq, int pass)
-{
- FILE *fp;
- struct mntent mnt;
- int rc = 0;
-
- mnt.mnt_fsname = spec;
- mnt.mnt_dir = mtpt;
- mnt.mnt_type = type;
- mnt.mnt_opts = opts ? opts : "";
- mnt.mnt_freq = freq;
- mnt.mnt_passno = pass;
-
- fp = setmntent(MOUNTED, "a+");
- if (fp == NULL) {
- fprintf(stderr, "%s: setmntent(%s): %s:",
- progname, MOUNTED, strerror (errno));
- rc = 16;
- } else {
- if ((addmntent(fp, &mnt)) == 1) {
- fprintf(stderr, "%s: addmntent: %s:",
- progname, strerror (errno));
- rc = 16;
- }
- endmntent(fp);
- }
-
- return rc;
-}
-
/* Get rid of symbolic hostnames for tcp, since kernel can't do lookups */
#define MAXNIDSTR 1024
static char *convert_hostnames(char *s1)
char sep;
int left = MAXNIDSTR;
lnet_nid_t nid;
-
+
converted = malloc(left);
+ if (converted == NULL) {
+ fprintf(stderr, "out of memory: needed %d bytes\n",
+ MAXNIDSTR);
+ return NULL;
+ }
c = converted;
while ((left > 0) && (*s1 != '/')) {
s2 = strpbrk(s1, ",:");
if (!s2)
goto out_free;
sep = *s2;
- *s2 = '\0';
+ *s2 = '\0';
nid = libcfs_str2nid(s1);
*s2 = sep; /* back to original string */
if (nid == LNET_NID_ANY)
{ "nosuid", 0, MS_NOSUID }, /* don't honor suid executables */
{ "dev", 1, MS_NODEV }, /* interpret device files */
{ "nodev", 0, MS_NODEV }, /* don't interpret devices */
+ { "sync", 0, MS_SYNCHRONOUS}, /* synchronous I/O */
{ "async", 1, MS_SYNCHRONOUS}, /* asynchronous I/O */
+ { "atime", 1, MS_NOATIME }, /* set file access time on read */
+ { "noatime", 0, MS_NOATIME }, /* do not set file access time on read */
+#ifdef MS_NODIRATIME
+ { "diratime", 1, MS_NODIRATIME }, /* set file access time on read */
+ { "nodiratime",0,MS_NODIRATIME }, /* do not set file access time on read */
+#endif
+#ifdef MS_RELATIME
+ { "relatime", 0, MS_RELATIME }, /* set file access time on read */
+ { "norelatime",1,MS_RELATIME }, /* do not set file access time on read */
+#endif
+#ifdef MS_STRICTATIME
+ { "strictatime",0,MS_STRICTATIME }, /* update access time strictly */
+#endif
{ "auto", 0, 0 }, /* Can be mounted using -a */
{ "noauto", 0, 0 }, /* Can only be mounted explicitly */
{ "nousers", 1, 0 }, /* Forbid ordinary user to mount */
{ "nouser", 1, 0 }, /* Forbid ordinary user to mount */
{ "noowner", 1, 0 }, /* Device owner has no special privs */
{ "_netdev", 0, 0 }, /* Device accessible only via network */
+ { "loop", 0, 0 },
{ NULL, 0, 0 }
};
/****************************************************************************/
return 0;
}
+static void append_option(char *options, const char *one)
+{
+ if (*options)
+ strcat(options, ",");
+ strcat(options, one);
+}
+
/* Replace options with subset of Lustre-specific options, and
fill in mount flags */
-int parse_options(char *orig_options, int *flagp)
+int parse_options(struct mount_opts *mop, char *orig_options, int *flagp)
{
- char *options, *opt, *nextopt;
+ char *options, *opt, *nextopt, *arg, *val;
options = calloc(strlen(orig_options) + 1, 1);
*flagp = 0;
nextopt = orig_options;
while ((opt = strsep(&nextopt, ","))) {
- if (!*opt)
+ if (!*opt)
/* empty option */
continue;
- if (parse_one_option(opt, flagp) == 0) {
+
+ /* Handle retries in a slightly different
+ * manner */
+ arg = opt;
+ val = strchr(opt, '=');
+ /* please note that some ldiskfs mount options are also in the form
+ * of param=value. We should pay attention not to remove those
+ * mount options, see bug 22097. */
+ if (val && strncmp(arg, "md_stripe_cache_size", 20) == 0) {
+ mop->mo_md_stripe_cache_size = atoi(val + 1);
+ } else if (val && strncmp(arg, "retry", 5) == 0) {
+ mop->mo_retry = atoi(val + 1);
+ if (mop->mo_retry > MAX_RETRIES)
+ mop->mo_retry = MAX_RETRIES;
+ else if (mop->mo_retry < 0)
+ mop->mo_retry = 0;
+ } else if (val && strncmp(arg, "mgssec", 6) == 0) {
+ append_option(options, opt);
+ } else if (strncmp(arg, "nosvc", 5) == 0) {
+ mop->mo_nosvc = 1;
+ append_option(options, opt);
+ } else if (strcmp(opt, "force") == 0) {
+ //XXX special check for 'force' option
+ ++mop->mo_force;
+ printf("force: %d\n", mop->mo_force);
+ } else if (parse_one_option(opt, flagp) == 0) {
/* pass this on as an option */
- if (*options)
- strcat(options, ",");
- strcat(options, opt);
+ append_option(options, opt);
}
}
+#ifdef MS_STRICTATIME
+#if LUSTRE_VERSION_CODE > OBD_OCD_VERSION(2, 10, 51, 0)
+/*
+ * LU-1783
+ * In the future when upstream fixes land in all supported kernels
+ * we should stop forcing MS_STRICTATIME in lustre mounts.
+ * We override the kernel level default of MS_RELATIME for now
+ * due to a kernel vfs level bug in atime updates that fails
+ * to reset timestamps from the future.
+ */
+#warn remove MS_STRICTATIME override
+#endif
+ /* set strictatime to default if NOATIME or RELATIME
+ not given explicit */
+ if (!(*flagp & (MS_NOATIME | MS_RELATIME)))
+ *flagp |= MS_STRICTATIME;
+#endif
strcpy(orig_options, options);
free(options);
return 0;
}
+/* Add mgsnids from ldd params */
+static int add_mgsnids(struct mount_opts *mop, char *options,
+ const char *params)
+{
+ char *ptr = (char *)params;
+ char tmp, *sep;
+
+ while ((ptr = strstr(ptr, PARAM_MGSNODE)) != NULL) {
+ sep = strchr(ptr, ' ');
+ if (sep != NULL) {
+ tmp = *sep;
+ *sep = '\0';
+ }
+ append_option(options, ptr);
+ mop->mo_have_mgsnid++;
+ if (sep) {
+ *sep = tmp;
+ ptr = sep;
+ } else {
+ break;
+ }
+ }
+
+ return 0;
+}
+
+static int clear_update_ondisk(char *source, struct lustre_disk_data *ldd)
+{
+ char always_mountopts[512] = "";
+ char default_mountopts[512] = "";
+ struct mkfs_opts mkop;
+ int ret;
+ int ret2;
+
+ memset(&mkop, 0, sizeof(mkop));
+ mkop.mo_ldd = *ldd;
+ mkop.mo_ldd.ldd_flags &= ~LDD_F_UPDATE;
+ if (strlen(source) > sizeof(mkop.mo_device)-1) {
+ fatal();
+ fprintf(stderr, "Device name too long: %s\n", source);
+ return -E2BIG;
+ }
+ strncpy(mkop.mo_device, source, sizeof(mkop.mo_device));
+
+ ret = osd_prepare_lustre(&mkop,
+ default_mountopts, sizeof(default_mountopts),
+ always_mountopts, sizeof(always_mountopts));
+ if (ret) {
+ fatal();
+ fprintf(stderr, "Can't prepare device %s: %s\n",
+ source, strerror(ret));
+ return ret;
+ }
+
+ /* Create the loopback file */
+ if (mkop.mo_flags & MO_IS_LOOP) {
+ ret = access(mkop.mo_device, F_OK);
+ if (ret) {
+ ret = errno;
+ fatal();
+ fprintf(stderr, "Can't access device %s: %s\n",
+ source, strerror(ret));
+ return ret;
+ }
+
+ ret = loop_setup(&mkop);
+ if (ret) {
+ fatal();
+ fprintf(stderr, "Loop device setup for %s failed: %s\n",
+ mkop.mo_device, strerror(ret));
+ return ret;
+ }
+ }
+ ret = osd_write_ldd(&mkop);
+ if (ret != 0) {
+ fatal();
+ fprintf(stderr, "failed to write local files: %s\n",
+ strerror(ret));
+ }
+
+ ret2 = loop_cleanup(&mkop);
+ if (ret == 0)
+ ret = ret2;
+
+ return ret;
+}
+
+static int parse_ldd(char *source, struct mount_opts *mop, char *options)
+{
+ struct lustre_disk_data *ldd = &mop->mo_ldd;
+ char *cur, *start;
+ int rc;
+
+ rc = osd_is_lustre(source, &ldd->ldd_mount_type);
+ if (rc == 0) {
+ fprintf(stderr, "%s: %s has not been formatted with mkfs.lustre"
+ " or the backend filesystem type is not supported by "
+ "this tool\n", progname, source);
+ return ENODEV;
+ }
+
+ rc = osd_read_ldd(source, ldd);
+ if (rc) {
+ fprintf(stderr, "%s: %s failed to read permanent mount"
+ " data: %s\n", progname, source,
+ rc >= 0 ? strerror(rc) : "");
+ return rc;
+ }
+
+ if ((IS_MDT(ldd) || IS_OST(ldd)) &&
+ (ldd->ldd_flags & LDD_F_NEED_INDEX)) {
+ fprintf(stderr, "%s: %s has no index assigned "
+ "(probably formatted with old mkfs)\n",
+ progname, source);
+ return EINVAL;
+ }
+
+ if (ldd->ldd_flags & LDD_F_UPGRADE14) {
+ fprintf(stderr, "%s: we cannot upgrade %s from this (very old) "
+ "Lustre version\n", progname, source);
+ return EINVAL;
+ }
+
+ if (ldd->ldd_flags & LDD_F_UPDATE)
+ clear_update_ondisk(source, ldd);
+
+ /* Since we never rewrite ldd, ignore temp flags */
+ ldd->ldd_flags &= ~(LDD_F_VIRGIN | LDD_F_WRITECONF);
+
+ /* svname of the form lustre:OST1234 means never registered */
+ rc = strlen(ldd->ldd_svname);
+ if (ldd->ldd_svname[rc - 8] == ':') {
+ ldd->ldd_svname[rc - 8] = '-';
+ ldd->ldd_flags |= LDD_F_VIRGIN;
+ } else if (ldd->ldd_svname[rc - 8] == '=') {
+ ldd->ldd_svname[rc - 8] = '-';
+ ldd->ldd_flags |= LDD_F_WRITECONF;
+ }
+
+ /* backend osd type */
+ append_option(options, "osd=");
+ strcat(options, mt_type(ldd->ldd_mount_type));
+
+ append_option(options, ldd->ldd_mount_opts);
+
+ if (!mop->mo_have_mgsnid) {
+ /* Only use disk data if mount -o mgsnode=nid wasn't
+ * specified */
+ if (ldd->ldd_flags & LDD_F_SV_TYPE_MGS) {
+ append_option(options, "mgs");
+ mop->mo_have_mgsnid++;
+ } else {
+ add_mgsnids(mop, options, ldd->ldd_params);
+ }
+ }
+ /* Better have an mgsnid by now */
+ if (!mop->mo_have_mgsnid) {
+ fprintf(stderr, "%s: missing option mgsnode=<nid>\n",
+ progname);
+ return EINVAL;
+ }
+
+ if (ldd->ldd_flags & LDD_F_VIRGIN)
+ append_option(options, "virgin");
+ if (ldd->ldd_flags & LDD_F_UPDATE)
+ append_option(options, "update");
+ if (ldd->ldd_flags & LDD_F_WRITECONF)
+ append_option(options, "writeconf");
+ if (ldd->ldd_flags & LDD_F_NO_PRIMNODE)
+ append_option(options, "noprimnode");
+
+ /* prefix every lustre parameter with param= so that in-kernel
+ * mount can recognize them properly and send to MGS at registration */
+ start = ldd->ldd_params;
+ while (start && *start != '\0') {
+ while (*start == ' ') start++;
+ if (*start == '\0')
+ break;
+ cur = start;
+ start = strchr(cur, ' ');
+ if (start) {
+ *start = '\0';
+ start++;
+ }
+ append_option(options, "param=");
+ strcat(options, cur);
+ }
+
+ /* svname must be last option */
+ append_option(options, "svname=");
+ strcat(options, ldd->ldd_svname);
+
+ return 0;
+}
+
+static void set_defaults(struct mount_opts *mop)
+{
+ memset(mop, 0, sizeof(*mop));
+ mop->mo_usource = NULL;
+ mop->mo_source = NULL;
+ mop->mo_nomtab = 0;
+ mop->mo_fake = 0;
+ mop->mo_force = 0;
+ mop->mo_retry = 0;
+ mop->mo_have_mgsnid = 0;
+ mop->mo_md_stripe_cache_size = 16384;
+ mop->mo_orig_options = "";
+ mop->mo_nosvc = 0;
+}
+
+static int parse_opts(int argc, char *const argv[], struct mount_opts *mop)
+{
+ static struct option long_opt[] = {
+ {"fake", 0, 0, 'f'},
+ {"force", 0, 0, 1},
+ {"help", 0, 0, 'h'},
+ {"nomtab", 0, 0, 'n'},
+ {"options", 1, 0, 'o'},
+ {"verbose", 0, 0, 'v'},
+ {0, 0, 0, 0}
+ };
+ char real_path[PATH_MAX] = {'\0'};
+ FILE *f;
+ char path[256], name[256];
+ size_t sz;
+ char *ptr;
+ int opt, rc;
+
+ while ((opt = getopt_long(argc, argv, "fhno:v",
+ long_opt, NULL)) != EOF){
+ switch (opt) {
+ case 1:
+ ++mop->mo_force;
+ printf("force: %d\n", mop->mo_force);
+ break;
+ case 'f':
+ ++mop->mo_fake;
+ printf("fake: %d\n", mop->mo_fake);
+ break;
+ case 'h':
+ usage(stdout);
+ break;
+ case 'n':
+ ++mop->mo_nomtab;
+ printf("nomtab: %d\n", mop->mo_nomtab);
+ break;
+ case 'o':
+ mop->mo_orig_options = optarg;
+ break;
+ case 'v':
+ ++verbose;
+ break;
+ default:
+ fprintf(stderr, "%s: unknown option '%c'\n",
+ progname, opt);
+ usage(stderr);
+ break;
+ }
+ }
+
+ if (optind + 2 > argc) {
+ fprintf(stderr, "%s: too few arguments\n", progname);
+ usage(stderr);
+ }
+
+ mop->mo_usource = argv[optind];
+ if (!mop->mo_usource) {
+ usage(stderr);
+ }
+
+ /**
+ * Try to get the real path to the device, in case it is a
+ * symbolic link for instance
+ */
+ if (realpath(mop->mo_usource, real_path) != NULL) {
+ ptr = strrchr(real_path, '/');
+ if (ptr && strncmp(ptr, "/dm-", 4) == 0 && isdigit(*(ptr + 4))) {
+ snprintf(path, sizeof(path), "/sys/block/%s/dm/name", ptr+1);
+ if ((f = fopen(path, "r"))) {
+ /* read "<name>\n" from sysfs */
+ if (fgets(name, sizeof(name), f) && (sz = strlen(name)) > 1) {
+ name[sz - 1] = '\0';
+ snprintf(real_path, sizeof(real_path), "/dev/mapper/%s", name);
+ }
+ fclose(f);
+ }
+ }
+ mop->mo_usource = strdup(real_path);
+ }
+
+ ptr = strstr(mop->mo_usource, ":/");
+ if (ptr != NULL) {
+ mop->mo_source = convert_hostnames(mop->mo_usource);
+ if (!mop->mo_source)
+ usage(stderr);
+ } else {
+ mop->mo_source = strdup(mop->mo_usource);
+ }
+
+ if (realpath(argv[optind + 1], mop->mo_target) == NULL) {
+ rc = errno;
+ fprintf(stderr, "warning: %s: cannot resolve: %s\n",
+ argv[optind + 1], strerror(errno));
+ return rc;
+ }
+
+ return 0;
+}
int main(int argc, char *const argv[])
{
- char default_options[] = "";
- char *usource, *source, *target, *ptr;
- char *options, *optcopy, *orig_options = default_options;
- int i, nargs = 3, opt, rc, flags, optlen;
- static struct option long_opt[] = {
- {"fake", 0, 0, 'f'},
- {"force", 0, 0, 1},
- {"help", 0, 0, 'h'},
- {"nomtab", 0, 0, 'n'},
- {"options", 1, 0, 'o'},
- {"verbose", 0, 0, 'v'},
- {0, 0, 0, 0}
- };
-
- progname = strrchr(argv[0], '/');
- progname = progname ? progname + 1 : argv[0];
-
- while ((opt = getopt_long(argc, argv, "fhno:v",
- long_opt, NULL)) != EOF){
- switch (opt) {
- case 1:
- ++force;
- printf("force: %d\n", force);
- nargs++;
- break;
- case 'f':
- ++fake;
- printf("fake: %d\n", fake);
- nargs++;
- break;
- case 'h':
- usage(stdout);
- break;
- case 'n':
- ++nomtab;
- printf("nomtab: %d\n", nomtab);
- nargs++;
- break;
- case 'o':
- orig_options = optarg;
- nargs++;
- break;
- case 'v':
- ++verbose;
- nargs++;
- break;
- default:
- fprintf(stderr, "%s: unknown option '%c'\n",
- progname, opt);
- usage(stderr);
- break;
- }
- }
+ struct mount_opts mop;
+ char *options;
+ int i, rc, flags;
- if (optind + 2 > argc) {
- fprintf(stderr, "%s: too few arguments\n", progname);
- usage(stderr);
- }
+ progname = strrchr(argv[0], '/');
+ progname = progname ? progname + 1 : argv[0];
- usource = argv[optind];
- source = convert_hostnames(usource);
- target = argv[optind + 1];
- ptr = target + strlen(target) - 1;
- while ((ptr > target) && (*ptr == '/')) {
- *ptr = 0;
- ptr--;
- }
+ set_defaults(&mop);
- if (!usource || !source) {
- usage(stderr);
- }
+ rc = osd_init();
+ if (rc)
+ return rc;
+
+ rc = parse_opts(argc, argv, &mop);
+ if (rc)
+ return rc;
if (verbose) {
for (i = 0; i < argc; i++)
printf("arg[%d] = %s\n", i, argv[i]);
- printf("source = %s (%s), target = %s\n", usource, source, target);
- printf("options = %s\n", orig_options);
+ printf("source = %s (%s), target = %s\n", mop.mo_usource,
+ mop.mo_source, mop.mo_target);
+ printf("options = %s\n", mop.mo_orig_options);
}
- options = malloc(strlen(orig_options) + 1);
- strcpy(options, orig_options);
- rc = parse_options(options, &flags);
+ options = malloc(MAXOPT);
+ if (options == NULL) {
+ fprintf(stderr, "can't allocate memory for options\n");
+ return -1;
+ }
+ strcpy(options, mop.mo_orig_options);
+ rc = parse_options(&mop, options, &flags);
if (rc) {
fprintf(stderr, "%s: can't parse options: %s\n",
progname, options);
return(EINVAL);
}
- if (!force) {
- rc = check_mtab_entry(usource, target, "lustre");
+ if (!mop.mo_force) {
+ rc = check_mtab_entry(mop.mo_usource, mop.mo_source,
+ mop.mo_target, "lustre");
if (rc && !(flags & MS_REMOUNT)) {
fprintf(stderr, "%s: according to %s %s is "
- "already mounted on %s\n",
- progname, MOUNTED, usource, target);
+ "already mounted on %s\n", progname, MOUNTED,
+ mop.mo_usource, mop.mo_target);
return(EEXIST);
}
if (!rc && (flags & MS_REMOUNT)) {
fprintf(stderr, "%s: according to %s %s is "
- "not already mounted on %s\n",
- progname, MOUNTED, usource, target);
+ "not already mounted on %s\n", progname, MOUNTED,
+ mop.mo_usource, mop.mo_target);
return(ENOENT);
}
}
- if (flags & MS_REMOUNT)
- nomtab++;
+ if (flags & MS_REMOUNT)
+ mop.mo_nomtab++;
- rc = access(target, F_OK);
+ rc = access(mop.mo_target, F_OK);
if (rc) {
rc = errno;
- fprintf(stderr, "%s: %s inaccessible: %s\n", progname, target,
- strerror(errno));
+ fprintf(stderr, "%s: %s inaccessible: %s\n", progname,
+ mop.mo_target, strerror(errno));
return rc;
}
+ if (!strstr(mop.mo_usource, ":/")) {
+ rc = parse_ldd(mop.mo_source, &mop, options);
+ if (rc)
+ return rc;
+ }
+
/* In Linux 2.4, the target device doesn't get passed to any of our
functions. So we'll stick it on the end of the options. */
- optlen = strlen(options) + strlen(",device=") + strlen(source) + 1;
- optcopy = malloc(optlen);
- strcpy(optcopy, options);
- if (*optcopy)
- strcat(optcopy, ",");
- strcat(optcopy, "device=");
- strcat(optcopy, source);
-
- if (verbose)
+ append_option(options, "device=");
+ strcat(options, mop.mo_source);
+
+ if (verbose)
printf("mounting device %s at %s, flags=%#x options=%s\n",
- source, target, flags, optcopy);
-
- if (!fake)
- /* flags and target get to lustre_get_sb, but not
- lustre_fill_super. Lustre ignores the flags, but mount
+ mop.mo_source, mop.mo_target, flags, options);
+
+ if (!strstr(mop.mo_usource, ":/") &&
+ osd_tune_lustre(mop.mo_source, &mop)) {
+ if (verbose)
+ fprintf(stderr, "%s: unable to set tunables for %s"
+ " (may cause reduced IO performance)\n",
+ argv[0], mop.mo_source);
+ }
+
+ if (!mop.mo_fake) {
+ /* flags and target get to lustre_get_sb, but not
+ lustre_fill_super. Lustre ignores the flags, but mount
does not. */
- rc = mount(source, target, "lustre", flags, (void *)optcopy);
+ for (i = 0, rc = -EAGAIN; i <= mop.mo_retry && rc != 0; i++) {
+ rc = mount(mop.mo_source, mop.mo_target, "lustre",
+ flags, (void *)options);
+ if (rc == 0) {
+ /* change label from <fsname>:<index> to
+ * <fsname>-<index> to indicate the device has
+ * been registered. only if the label is
+ * supposed to be changed and target service
+ * is supposed to start */
+ if (mop.mo_ldd.ldd_flags &
+ (LDD_F_VIRGIN | LDD_F_WRITECONF)) {
+ if (mop.mo_nosvc == 0)
+ (void)osd_label_lustre(&mop);
+ }
+ } else {
+ if (verbose) {
+ fprintf(stderr, "%s: mount %s at %s "
+ "failed: %s retries left: "
+ "%d\n", basename(progname),
+ mop.mo_usource, mop.mo_target,
+ strerror(errno),
+ mop.mo_retry - i);
+ }
+
+ if (mop.mo_retry) {
+ sleep(1 << max((i/2), 5));
+ }
+ else {
+ rc = errno;
+ }
+ }
+ }
+ }
if (rc) {
char *cli;
rc = errno;
- cli = strrchr(usource, ':');
- if (cli && (strlen(cli) > 2))
+ cli = strrchr(mop.mo_usource, ':');
+ if (cli && (strlen(cli) > 2))
cli += 2;
else
cli = NULL;
- fprintf(stderr, "%s: mount %s at %s failed: %s\n", progname,
- usource, target, strerror(errno));
+ fprintf(stderr, "%s: mount %s at %s failed: %s\n", progname,
+ mop.mo_usource, mop.mo_target, strerror(errno));
+ if (errno == EBUSY)
+ fprintf(stderr, "Is the backend filesystem mounted?\n"
+ "Check /etc/mtab and /proc/mounts\n");
if (errno == ENODEV)
fprintf(stderr, "Are the lustre modules loaded?\n"
- "Check /etc/modprobe.conf and /proc/filesystems"
- "\nNote 'alias lustre llite' should be removed"
- " from modprobe.conf\n");
+ "Check /etc/modprobe.conf and "
+ "/proc/filesystems\n");
if (errno == ENOTBLK)
fprintf(stderr, "Do you need -o loop?\n");
if (errno == ENOMEDIUM)
- fprintf(stderr,
+ fprintf(stderr,
"This filesystem needs at least 1 OST\n");
if (errno == ENOENT) {
fprintf(stderr, "Is the MGS specification correct?\n");
}
if (errno == EALREADY)
fprintf(stderr, "The target service is already running."
- " (%s)\n", usource);
+ " (%s)\n", mop.mo_usource);
if (errno == ENXIO)
fprintf(stderr, "The target service failed to start "
"(bad config log?) (%s). "
- "See /var/log/messages.\n", usource);
+ "See /var/log/messages.\n", mop.mo_usource);
if (errno == EIO)
fprintf(stderr, "Is the MGS running?\n");
if (errno == EADDRINUSE)
fprintf(stderr, "The target service's index is already "
- "in use. (%s)\n", usource);
+ "in use. (%s)\n", mop.mo_usource);
if (errno == EINVAL) {
fprintf(stderr, "This may have multiple causes.\n");
- if (cli)
+ if (cli)
fprintf(stderr, "Is '%s' the correct filesystem"
" name?\n", cli);
fprintf(stderr, "Are the mount options correct?\n");
}
/* May as well try to clean up loop devs */
- if (strncmp(usource, "/dev/loop", 9) == 0) {
+ if (strncmp(mop.mo_usource, "/dev/loop", 9) == 0) {
char cmd[256];
- sprintf(cmd, "/sbin/losetup -d %s", usource);
- system(cmd);
+ int ret;
+ sprintf(cmd, "/sbin/losetup -d %s", mop.mo_usource);
+ if ((ret = system(cmd)) < 0)
+ rc = errno;
+ else if (ret > 0)
+ rc = WEXITSTATUS(ret);
}
- } else if (!nomtab) {
- rc = update_mtab_entry(usource, target, "lustre", orig_options,
- 0,0,0);
- }
+ } else if (!mop.mo_nomtab) {
+ rc = update_mtab_entry(mop.mo_usource, mop.mo_target, "lustre",
+ mop.mo_orig_options, 0,0,0);
+ }
+
+ free(options);
+ /* mo_usource should be freed, but we can rely on the kernel */
+ free(mop.mo_source);
+
+ osd_fini();
- free(optcopy);
- free(source);
return rc;
}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff