/*
* Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
- * Copyright (c) 2012, 2013, Intel Corporation.
+ *
+ * Copyright (c) 2012, 2014, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
# include "config.h"
#endif /* HAVE_CONFIG_H */
-#include "mount_utils.h"
+#include <inttypes.h>
+#include <limits.h>
+#include <mntent.h>
#include <stdio.h>
#include <errno.h>
#include <string.h>
+#include <unistd.h>
#include <config.h>
#include <lustre_disk.h>
#include <lustre_ver.h>
+#include <sys/mount.h>
#include <sys/stat.h>
#include <sys/utsname.h>
#include <linux/loop.h>
#include <dlfcn.h>
+#include "mount_utils.h"
+
extern char *progname;
extern int verbose;
return ENOENT;
}
+int append_param(char *buf, char *key, char *val, char sep)
+{
+ int key_len, i, offset, old_val_len;
+ char *ptr = NULL, str[1024];
+
+ if (key)
+ ptr = strstr(buf, key);
+
+ /* key doesn't exist yet, so just add it */
+ if (ptr == NULL)
+ return add_param(buf, key, val);
+
+ key_len = strlen(key);
+
+ /* Copy previous values to str */
+ for (i = 0; i < sizeof(str); ++i) {
+ if ((ptr[i+key_len] == ' ') || (ptr[i+key_len] == '\0'))
+ break;
+ str[i] = ptr[i+key_len];
+ }
+ if (i == sizeof(str))
+ return E2BIG;
+ old_val_len = i;
+
+ offset = old_val_len+key_len;
+
+ /* Move rest of buf to overwrite previous key and value */
+ for (i = 0; ptr[i+offset] != '\0'; ++i)
+ ptr[i] = ptr[i+offset];
+
+ ptr[i] = '\0';
+
+ snprintf(str+old_val_len, sizeof(str)-old_val_len, "%c%s", sep, val);
+
+ return add_param(buf, key, str);
+}
+
char *strscat(char *dst, char *src, int buflen)
{
dst[buflen - 1] = 0;
return 1;
}
+#ifdef HAVE_LIBMOUNT
+
+# include <libmount/libmount.h>
+
+/*
+ * The libmount is part of util-linux since 2.18.
+ * We use it to update utab to avoid umount would
+ * blocked in some rare case.
+ */
+int update_utab_entry(struct mount_opts *mop)
+{
+ struct libmnt_fs *fs = mnt_new_fs();
+ struct libmnt_update *upd;
+ int rc;
+
+ mnt_fs_set_source(fs, mop->mo_source);
+ mnt_fs_set_target(fs, mop->mo_target);
+ mnt_fs_set_fstype(fs, "lustre");
+ mnt_fs_set_attributes(fs, "lustre");
+
+ upd = mnt_new_update();
+ if (!upd)
+ return -ENOMEM;
+
+ rc = mnt_update_set_fs(upd, mop->mo_nomtab ? MS_REMOUNT : 0, NULL, fs);
+ if (rc == 1) /* update is unnecessary */
+ rc = 0;
+ if (rc) {
+ fprintf(stderr,
+ "error: failed to save utab entry: rc = %d\n", rc);
+ } else {
+ rc = mnt_update_table(upd, NULL);
+ }
+
+ mnt_free_update(upd);
+ mnt_free_fs(fs);
+
+ return rc;
+}
+#else
+int update_utab_entry(struct mount_opts *mop)
+{
+ return 0;
+}
+#endif /* HAVE_LIBMOUNT */
+
int update_mtab_entry(char *spec, char *mtpt, char *type, char *opts,
int flags, int freq, int pass)
{
* present in mountopts. The justwarn boolean toggles between error and
* warning message. Return an error count.
*/
-int check_mountfsoptions(char *mountopts, char *wanted_mountopts,
- int justwarn)
+int check_mountfsoptions(char *mountopts, char *wanted_mountopts)
{
char *ml, *mlp, *item, *ctx = NULL;
int errors = 0;
mlp = ml;
while ((item = strtok_r(mlp, ",", &ctx))) {
if (!in_mntlist(item, mountopts)) {
- fprintf(stderr, "%s: %s mount option `%s' is missing\n",
- progname, justwarn ? "Warning: default"
- : "Error: mandatory", item);
+ fprintf(stderr, "%s: Error: mandatory mount option"
+ " '%s' is missing\n", progname, item);
errors++;
}
mlp = NULL;
char cmd[PATH_MAX];
int cmdsz = sizeof(cmd);
-#ifdef LOOP_CTL_GET_FREE
+#ifdef HAVE_LOOP_CTL_GET_FREE
ret = open("/dev/loop-control", O_RDWR);
if (ret < 0) {
fprintf(stderr, "%s: can't access loop control\n", progname);
}
/* find or allocate a free loop device to use */
i = ioctl(ret, LOOP_CTL_GET_FREE);
+ close(ret);
if (i < 0) {
fprintf(stderr, "%s: access loop control error\n", progname);
return EACCES;
free(ops);
return NULL;
}
+
+ /* optional methods */
+ DLSYM(name, ops, fix_mountopts);
+
return ops;
}
}
if (backfs_ops[mount_type] == NULL) {
fatal();
- fprintf(stderr, "unhandled fs type %d '%s'\n",
+ fprintf(stderr, "unhandled/unloaded fs type %d '%s'\n",
mount_type, mt_str(mount_type));
return 0;
}
if (backfs_mount_type_okay(ldd->ldd_mount_type))
ret = backfs_ops[ldd->ldd_mount_type]->write_ldd(mop);
-
else
ret = EINVAL;
if (backfs_mount_type_okay(ldd->ldd_mount_type))
ret = backfs_ops[ldd->ldd_mount_type]->read_ldd(dev, ldd);
-
else
ret = EINVAL;
if (backfs_mount_type_okay(ldd->ldd_mount_type))
ret = backfs_ops[ldd->ldd_mount_type]->make_lustre(mop);
-
else
ret = EINVAL;
}
int osd_prepare_lustre(struct mkfs_opts *mop,
- char *default_mountopts, int default_len,
- char *always_mountopts, int always_len)
+ char *wanted_mountopts, size_t len)
{
struct lustre_disk_data *ldd = &mop->mo_ldd;
int ret;
if (backfs_mount_type_okay(ldd->ldd_mount_type))
ret = backfs_ops[ldd->ldd_mount_type]->prepare_lustre(mop,
- default_mountopts, default_len,
- always_mountopts, always_len);
-
+ wanted_mountopts, len);
else
ret = EINVAL;
return ret;
}
+int osd_fix_mountopts(struct mkfs_opts *mop, char *mountopts, size_t len)
+{
+ struct lustre_disk_data *ldd = &mop->mo_ldd;
+
+ if (!backfs_mount_type_okay(ldd->ldd_mount_type))
+ return EINVAL;
+
+ if (backfs_ops[ldd->ldd_mount_type]->fix_mountopts == NULL)
+ return 0;
+
+ return backfs_ops[ldd->ldd_mount_type]->fix_mountopts(mop, mountopts,
+ len);
+}
+
int osd_tune_lustre(char *dev, struct mount_opts *mop)
{
struct lustre_disk_data *ldd = &mop->mo_ldd;
if (backfs_mount_type_okay(ldd->ldd_mount_type))
ret = backfs_ops[ldd->ldd_mount_type]->tune_lustre(dev, mop);
-
else
ret = EINVAL;
if (backfs_mount_type_okay(ldd->ldd_mount_type))
ret = backfs_ops[ldd->ldd_mount_type]->label_lustre(mop);
-
else
ret = EINVAL;
if (backfs_mount_type_okay(ldd->ldd_mount_type))
ret = backfs_ops[ldd->ldd_mount_type]->enable_quota(mop);
-
else
ret = EINVAL;
int osd_init(void)
{
- int i, ret = 0;
+ int i, rc, ret = EINVAL;
for (i = 0; i < LDD_MT_LAST; ++i) {
+ rc = 0;
backfs_ops[i] = load_backfs_module(i);
if (backfs_ops[i] != NULL)
- ret = backfs_ops[i]->init();
- if (ret)
- break;
+ rc = backfs_ops[i]->init();
+ if (rc != 0) {
+ backfs_ops[i]->fini();
+ unload_backfs_module(backfs_ops[i]);
+ backfs_ops[i] = NULL;
+ } else
+ ret = 0;
}
return ret;
return 0;
}
- vprint("device size = "LPU64"MB\n", size >> 20);
+ vprint("device size = %juMB\n", (uintmax_t)(size >> 20));
/* return value in KB */
return size >> 10;
}
*/
size_max = (off_t)1 << (_FILE_OFFSET_BITS - 1 - 10);
if (size >= size_max) {
- fprintf(stderr, "%s: "LPU64" KB: Backing store size must be "
- "smaller than "LPU64" KB\n", progname, size, size_max);
+ fprintf(stderr, "%s: %ju KB: Backing store size must be "
+ "smaller than %ju KB\n", progname, (uintmax_t) size,
+ (uintmax_t)size_max);
return EFBIG;
}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff