#include <lustre_disk.h>
#include <uapi/linux/lustre/lustre_param.h>
-static int (*client_fill_super)(struct super_block *sb,
- struct vfsmount *mnt);
+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);
OBD_CONNECT_LVB_TYPE |
OBD_CONNECT_BULK_MBITS | OBD_CONNECT_BARRIER;
-#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
- data->ocd_connect_flags |= OBD_CONNECT_MNE_SWAB;
-#endif
-
if (lmd_is_client(lsi->lsi_lmd) &&
lsi->lsi_lmd->lmd_flags & LMD_FLG_NOIR)
data->ocd_connect_flags &= ~OBD_CONNECT_IMP_RECOV;
*/
static int lmd_parse_nidlist(char *buf, char **endh)
{
- struct list_head nidlist;
+ LIST_HEAD(nidlist);
char *endp = buf;
char tmp;
int rc = 0;
tmp = *endp;
*endp = '\0';
- INIT_LIST_HEAD(&nidlist);
if (cfs_parse_nidlist(buf, strlen(buf), &nidlist) <= 0)
rc = 1;
cfs_free_nidlist(&nidlist);
max_t(int, simple_strtoul(s1 + 19, NULL, 10),
time_min);
clear++;
+ } else if (strncmp(s1, "no_precreate", 12) == 0) {
+ lmd->lmd_flags |= LMD_FLG_NO_PRECREATE;
+ clear++;
} else if (strncmp(s1, "noir", 4) == 0) {
lmd->lmd_flags |= LMD_FLG_NOIR; /* test purpose only. */
clear++;
strlcat(lmd->lmd_params, " ", LMD_PARAMS_MAXLEN);
s3 = s1 + 6 + length;
clear++;
+ } else if (strncmp(s1, "localrecov", 10) == 0) {
+ lmd->lmd_flags |= LMD_FLG_LOCAL_RECOV;
+ clear++;
} else if (strncmp(s1, "osd=", 4) == 0) {
rc = lmd_parse_string(&lmd->lmd_osd_type, s1 + 4);
if (rc)
RETURN(-EINVAL);
}
-struct lustre_mount_data2 {
- void *lmd2_data;
- struct vfsmount *lmd2_mnt;
-};
-
/**
* This is the entry point for the mount call into Lustre.
* This is called when a server or client 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 *data, int silent)
+static int lustre_fill_super(struct super_block *sb, void *lmd2_data,
+ int silent)
{
struct lustre_mount_data *lmd;
- struct lustre_mount_data2 *lmd2 = data;
struct lustre_sb_info *lsi;
int rc;
obd_zombie_barrier();
/* Figure out the lmd from the mount options */
- if (lmd_parse((char *)(lmd2->lmd2_data), lmd)) {
+ if (lmd_parse(lmd2_data, lmd)) {
lustre_put_lsi(sb);
GOTO(out, rc = -EINVAL);
}
if (lmd_is_client(lmd)) {
+ bool have_client = false;
+
CDEBUG(D_MOUNT, "Mounting client %s\n", lmd->lmd_profile);
- if (client_fill_super == NULL)
+ if (!client_fill_super)
request_module("lustre");
- if (client_fill_super == NULL) {
+ 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);
}
/* Connect and start */
/* (should always be ll_fill_super) */
- rc = (*client_fill_super)(sb, lmd2->lmd2_mnt);
- /* c_f_s will call lustre_common_put_super on failure */
+ 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
* 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_client_fill_super(int (*cfs)(struct super_block *sb,
- struct vfsmount *mnt))
+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_client_fill_super);
-
-void lustre_register_kill_super_cb(void (*cfs)(struct super_block *sb))
-{
- kill_super_cb = cfs;
-}
-EXPORT_SYMBOL(lustre_register_kill_super_cb);
+EXPORT_SYMBOL(lustre_register_super_ops);
/***************** FS registration ******************/
-#ifdef HAVE_FSTYPE_MOUNT
static struct dentry *lustre_mount(struct file_system_type *fs_type, int flags,
const char *devname, void *data)
{
- struct lustre_mount_data2 lmd2 = {
- .lmd2_data = data,
- };
-
- return mount_nodev(fs_type, flags, &lmd2, lustre_fill_super);
-}
-#else
-static int lustre_get_sb(struct file_system_type *fs_type, int flags,
- const char *devname, void *data, struct vfsmount *mnt)
-{
- struct lustre_mount_data2 lmd2 = {
- .lmd2_data = data,
- .lmd2_mnt = mnt,
- };
-
- return get_sb_nodev(fs_type, flags, &lmd2, lustre_fill_super, mnt);
+ return mount_nodev(fs_type, flags, data, lustre_fill_super);
}
-#endif
static void lustre_kill_super(struct super_block *sb)
{
static struct file_system_type lustre_fs_type_tgt = {
.owner = THIS_MODULE,
.name = "lustre_tgt",
-#ifdef HAVE_FSTYPE_MOUNT
.mount = lustre_mount,
-#else
- .get_sb = lustre_get_sb,
-#endif
.kill_sb = lustre_kill_super,
.fs_flags = FS_REQUIRES_DEV | FS_RENAME_DOES_D_MOVE,
};
static struct file_system_type lustre_fs_type = {
.owner = THIS_MODULE,
.name = "lustre",
-#ifdef HAVE_FSTYPE_MOUNT
.mount = lustre_mount,
-#else
- .get_sb = lustre_get_sb,
-#endif
.kill_sb = lustre_kill_super,
.fs_flags = FS_RENAME_DOES_D_MOVE,
};
git://git.whamcloud.com / fs / lustre-release.git / blobdiff