#include <uapi/linux/lustre/lustre_param.h>
#include <libcfs/crypto/llcrypt.h>
-static DEFINE_SPINLOCK(client_lock);
-static struct module *client_mod;
-static int (*client_fill_super)(struct super_block *sb);
-
-static void (*kill_super_cb)(struct super_block *sb);
-
/**************** config llog ********************/
/**
GOTO(out_free, rc = -ENOMEM);
generate_random_uuid(uuidc.b);
- snprintf(uuid->uuid, UUID_SIZE, "%pU", uuidc.b);
+ snprintf(uuid->uuid, sizeof(*uuid), "%pU", uuidc.b);
/* Start the MGC */
rc = lustre_start_simple(mgcname, LUSTRE_MGC_NAME,
OBD_FREE(niduuid, len + 2);
RETURN(rc);
}
+EXPORT_SYMBOL(lustre_start_mgc);
static int lustre_stop_mgc(struct super_block *sb)
{
/***************** lustre superblock **************/
-static struct lustre_sb_info *lustre_init_lsi(struct super_block *sb)
+struct lustre_sb_info *lustre_init_lsi(struct super_block *sb)
{
struct lustre_sb_info *lsi;
RETURN(NULL);
}
- lsi->lsi_lmd->lmd_exclude_count = 0;
- lsi->lsi_lmd->lmd_recovery_time_soft = 0;
- lsi->lsi_lmd->lmd_recovery_time_hard = 0;
s2lsi_nocast(sb) = lsi;
/* we take 1 extra ref for our setup */
atomic_set(&lsi->lsi_mounts, 1);
RETURN(lsi);
}
+EXPORT_SYMBOL(lustre_init_lsi);
static int lustre_free_lsi(struct super_block *sb)
{
}
RETURN(0);
}
+EXPORT_SYMBOL(lustre_put_lsi);
/*
* The goal of this function is to extract the file system name
devmax = strlen(ptr) / 8 + 1;
/* temp storage until we figure out how many we have */
- OBD_ALLOC(exclude_list, sizeof(index) * devmax);
+ OBD_ALLOC_PTR_ARRAY(exclude_list, devmax);
if (!exclude_list)
RETURN(-ENOMEM);
if (lmd->lmd_exclude_count) {
/* permanent, freed in lustre_free_lsi */
- OBD_ALLOC(lmd->lmd_exclude, sizeof(index) *
- lmd->lmd_exclude_count);
+ OBD_ALLOC_PTR_ARRAY(lmd->lmd_exclude,
+ lmd->lmd_exclude_count);
if (lmd->lmd_exclude) {
memcpy(lmd->lmd_exclude, exclude_list,
sizeof(index) * lmd->lmd_exclude_count);
lmd->lmd_exclude_count = 0;
}
}
- OBD_FREE(exclude_list, sizeof(index) * devmax);
+ OBD_FREE_PTR_ARRAY(exclude_list, devmax);
RETURN(rc);
}
* e.g. mount -v -t lustre -o abort_recov uml1:uml2:/lustre-client /mnt/lustre
* dev is passed as device=uml1:/lustre by mount.lustre_tgt
*/
-static int lmd_parse(char *options, struct lustre_mount_data *lmd)
+int lmd_parse(char *options, struct lustre_mount_data *lmd)
{
char *s1, *s2, *devname = NULL;
struct lustre_mount_data *raw = (struct lustre_mount_data *)options;
if (strncmp(s1, "abort_recov", 11) == 0) {
lmd->lmd_flags |= LMD_FLG_ABORT_RECOV;
clear++;
+ } else if (strncmp(s1, "abort_recov_mdt", 15) == 0) {
+ lmd->lmd_flags |= LMD_FLG_ABORT_RECOV_MDT;
+ clear++;
} else if (strncmp(s1, "recovery_time_soft=", 19) == 0) {
lmd->lmd_recovery_time_soft =
max_t(int, simple_strtoul(s1 + 19, NULL, 10),
} else if (strncmp(s1, "writeconf", 9) == 0) {
lmd->lmd_flags |= LMD_FLG_WRITECONF;
clear++;
+ } else if (strncmp(s1, "nolocallogs", 11) == 0) {
+ lmd->lmd_flags |= LMD_FLG_NO_LOCAL_LOGS;
+ clear++;
} else if (strncmp(s1, "update", 6) == 0) {
lmd->lmd_flags |= LMD_FLG_UPDATE;
clear++;
CERROR("Bad mount options %s\n", options);
RETURN(-EINVAL);
}
+EXPORT_SYMBOL(lmd_parse);
+#ifdef HAVE_SERVER_SUPPORT
/**
* This is the entry point for the mount call into Lustre.
- * This is called when a server or client is mounted,
+ * This is called when a server target is mounted,
* and this is where we start setting things up.
* @param data Mount options (e.g. -o flock,abort_recov)
*/
-static int lustre_fill_super(struct super_block *sb, void *lmd2_data,
- int silent)
+static int lustre_tgt_fill_super(struct super_block *sb, void *lmd2_data,
+ int silent)
{
struct lustre_mount_data *lmd;
struct lustre_sb_info *lsi;
}
if (lmd_is_client(lmd)) {
- bool have_client = false;
-
- CDEBUG(D_MOUNT, "Mounting client %s\n", lmd->lmd_profile);
- if (!client_fill_super)
- request_module("lustre");
- spin_lock(&client_lock);
- if (client_fill_super && try_module_get(client_mod))
- have_client = true;
- spin_unlock(&client_lock);
- if (!have_client) {
- LCONSOLE_ERROR_MSG(0x165,
- "Nothing registered for client mount! Is the 'lustre' module loaded?\n");
- lustre_put_lsi(sb);
- rc = -ENODEV;
- } else {
- rc = lustre_start_mgc(sb);
- if (rc) {
- lustre_common_put_super(sb);
- GOTO(out, rc);
- }
- /* Connect and start */
- /* (should always be ll_fill_super) */
- rc = (*client_fill_super)(sb);
- /* c_f_s will call lustre_common_put_super on failure,
- * which takes care of the module reference.
- */
- }
- } else {
-#ifdef HAVE_SERVER_SUPPORT
- CDEBUG(D_MOUNT, "Mounting server from %s\n", lmd->lmd_dev);
- rc = server_fill_super(sb);
- /*
- * s_f_s calls lustre_start_mgc after the mount because we need
- * the MGS NIDs which are stored on disk. Plus, we may
- * need to start the MGS first.
- */
- /* s_f_s will call server_put_super on failure */
-#else
- CERROR("client-side-only module, cannot handle server mount\n");
- rc = -EINVAL;
-#endif
+ rc = -ENODEV;
+ CERROR("%s: attempting to mount a client with -t lustre_tgt' which is only for server-side mounts: rc = %d\n",
+ lmd->lmd_dev, rc);
+ lustre_put_lsi(sb);
+ GOTO(out, rc);
}
+ CDEBUG(D_MOUNT, "Mounting server from %s\n", lmd->lmd_dev);
+ rc = server_fill_super(sb);
/*
+ * server_fill_super calls lustre_start_mgc after the mount
+ * because we need the MGS NIDs which are stored on disk.
+ * Plus, we may need to start the MGS first.
+ *
+ * server_fill_super will call server_put_super on failure
+ *
* If error happens in fill_super() call, @lsi will be killed there.
* This is why we do not put it here.
*/
- GOTO(out, rc);
out:
if (rc) {
CERROR("Unable to mount %s (%d)\n",
return rc;
}
-
-/*
- * We can't call ll_fill_super by name because it lives in a module that
- * must be loaded after this one.
- */
-void lustre_register_super_ops(struct module *mod,
- int (*cfs)(struct super_block *sb),
- void (*ksc)(struct super_block *sb))
-{
- spin_lock(&client_lock);
- client_mod = mod;
- client_fill_super = cfs;
- kill_super_cb = ksc;
- spin_unlock(&client_lock);
-}
-EXPORT_SYMBOL(lustre_register_super_ops);
-
/***************** FS registration ******************/
-static struct dentry *lustre_mount(struct file_system_type *fs_type, int flags,
- const char *devname, void *data)
+static struct dentry *lustre_tgt_mount(struct file_system_type *fs_type,
+ int flags, const char *devname,
+ void *data)
{
- return mount_nodev(fs_type, flags, data, lustre_fill_super);
-}
-
-static void lustre_kill_super(struct super_block *sb)
-{
- struct lustre_sb_info *lsi = s2lsi(sb);
-
- if (kill_super_cb && lsi && !IS_SERVER(lsi))
- (*kill_super_cb)(sb);
-
- kill_anon_super(sb);
+ return mount_nodev(fs_type, flags, data, lustre_tgt_fill_super);
}
-#ifdef HAVE_SERVER_SUPPORT
/* Register the "lustre_tgt" fs type.
*
* Right now this isn't any different than the normal "lustre" filesystem
*
* The long-term goal is to disentangle the client and server mount code.
*/
-static struct file_system_type lustre_fs_type_tgt = {
+static struct file_system_type lustre_tgt_fstype = {
.owner = THIS_MODULE,
.name = "lustre_tgt",
- .mount = lustre_mount,
- .kill_sb = lustre_kill_super,
+ .mount = lustre_tgt_mount,
+ .kill_sb = kill_anon_super,
.fs_flags = FS_REQUIRES_DEV | FS_RENAME_DOES_D_MOVE,
};
MODULE_ALIAS_FS("lustre_tgt");
-#define register_filesystem_tgt(fstype) \
-do { \
- int _rc; \
- \
- _rc = register_filesystem(fstype); \
- if (_rc && _rc != -EBUSY) { \
- /* Don't fail if server code also registers "lustre_tgt" */ \
- CERROR("obdclass: register fstype '%s' failed: rc = %d\n", \
- (fstype)->name, _rc); \
- return _rc; \
- } \
-} while (0)
-#define unregister_filesystem_tgt(fstype) unregister_filesystem(fstype)
-#else
-#define register_filesystem_tgt(fstype) do {} while (0)
-#define unregister_filesystem_tgt(fstype) do {} while (0)
-#endif
-
-/* Register the "lustre" fs type */
-static struct file_system_type lustre_fs_type = {
- .owner = THIS_MODULE,
- .name = "lustre",
- .mount = lustre_mount,
- .kill_sb = lustre_kill_super,
- .fs_flags = FS_RENAME_DOES_D_MOVE,
-};
-MODULE_ALIAS_FS("lustre");
-
-int lustre_register_fs(void)
+int lustre_tgt_register_fs(void)
{
- register_filesystem_tgt(&lustre_fs_type_tgt);
-
- return register_filesystem(&lustre_fs_type);
+ return register_filesystem(&lustre_tgt_fstype);
}
-int lustre_unregister_fs(void)
+void lustre_tgt_unregister_fs(void)
{
- unregister_filesystem_tgt(&lustre_fs_type_tgt);
-
- return unregister_filesystem(&lustre_fs_type);
+ unregister_filesystem(&lustre_tgt_fstype);
}
+
+#endif /* HAVE_SERVER_SUPPORT */