-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
+/*
* GPL HEADER START
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
#include <lustre_log.h>
#include <lustre_disk.h>
#include <lustre_param.h>
+#ifdef HAVE_KERNEL_LOCKED
+#include <linux/smp_lock.h>
+#endif
static int (*client_fill_super)(struct super_block *sb,
struct vfsmount *mnt) = NULL;
char *name_cp;
ENTRY;
- LASSERT(mnt);
LASSERT(sb);
OBD_ALLOC(lmi, sizeof(*lmi));
cfs_mutex_unlock(&lustre_mount_info_lock);
CDEBUG(D_MOUNT, "reg_mnt %p from %s, vfscount=%d\n",
- lmi->lmi_mnt, name, mnt_get_count(lmi->lmi_mnt));
+ lmi->lmi_mnt, name,
+ lmi->lmi_mnt ? mnt_get_count(lmi->lmi_mnt) : -1);
RETURN(0);
}
}
CDEBUG(D_MOUNT, "dereg_mnt %p from %s, vfscount=%d\n",
- lmi->lmi_mnt, name, mnt_get_count(lmi->lmi_mnt));
+ lmi->lmi_mnt, name,
+ lmi->lmi_mnt ? mnt_get_count(lmi->lmi_mnt) : -1);
OBD_FREE(lmi->lmi_name, strlen(lmi->lmi_name) + 1);
cfs_list_del(&lmi->lmi_list_chain);
RETURN(NULL);
}
lsi = s2lsi(lmi->lmi_sb);
- mntget(lmi->lmi_mnt);
+
+ if (lmi->lmi_mnt)
+ mntget(lmi->lmi_mnt);
cfs_atomic_inc(&lsi->lsi_mounts);
CDEBUG(D_MOUNT, "get_mnt %p from %s, refs=%d, vfscount=%d\n",
lmi->lmi_mnt, name, cfs_atomic_read(&lsi->lsi_mounts),
- mnt_get_count(lmi->lmi_mnt));
+ lmi->lmi_mnt ? mnt_get_count(lmi->lmi_mnt) - 1 : -1);
RETURN(lmi);
}
static void unlock_mntput(struct vfsmount *mnt)
{
- if (kernel_locked()) {
- cfs_unlock_kernel();
- mntput(mnt);
- cfs_lock_kernel();
- } else {
- mntput(mnt);
- }
+#ifdef HAVE_KERNEL_LOCKED
+ /* for kernel < 2.6.37 */
+ if (kernel_locked()) {
+ unlock_kernel();
+ mntput(mnt);
+ lock_kernel();
+ } else {
+ mntput(mnt);
+ }
+#else
+ mntput(mnt);
+#endif
}
static int lustre_put_lsi(struct super_block *sb);
{
struct lustre_mount_info *lmi;
struct lustre_sb_info *lsi;
- int count = mnt_get_count(mnt) - 1;
+ int count = 0;
ENTRY;
/* This might be the last one, can't deref after this */
- unlock_mntput(mnt);
+ if (mnt) {
+ count = mnt_get_count(mnt) - 1;
+ unlock_mntput(mnt);
+ }
cfs_mutex_lock(&lustre_mount_info_lock);
lmi = server_find_mount(name);
int rc = 0;
ENTRY;
+ if (ldd->ldd_magic == 0)
+ RETURN(0);
+
LASSERT(ldd->ldd_magic == LDD_MAGIC);
ldd->ldd_config_ver++;
/* Find the first non-lo MGS nid for our MGC name */
if (lsi->lsi_flags & LSI_SERVER) {
ptr = lsi->lsi_ldd->ldd_params;
+ /* mount -o mgsnode=nid */
+ if (lsi->lsi_lmd->lmd_mgs &&
+ (class_parse_nid(lsi->lsi_lmd->lmd_mgs, &nid, &ptr) == 0)) {
+ i++;
/* Use mgsnode= nids */
- if ((class_find_param(ptr, PARAM_MGSNODE, &ptr) == 0) &&
+ } else if ((class_find_param(ptr, PARAM_MGSNODE, &ptr) == 0) &&
(class_parse_nid(ptr, &nid, &ptr) == 0)) {
i++;
} else if (IS_MGS(lsi->lsi_ldd)) {
obd = class_name2obd(mgcname);
if (obd && !obd->obd_stopping) {
- rc = obd_set_info_async(obd->obd_self_export,
+ rc = obd_set_info_async(NULL, obd->obd_self_export,
strlen(KEY_MGSSEC), KEY_MGSSEC,
strlen(mgssec), mgssec, NULL);
if (rc)
int vallen = sizeof(*data);
__u32 *flags = &lsi->lsi_lmd->lmd_flags;
- rc = obd_get_info(obd->obd_self_export,
+ rc = obd_get_info(NULL, obd->obd_self_export,
strlen(KEY_CONN_DATA), KEY_CONN_DATA,
&vallen, data, NULL);
LASSERT(rc == 0);
if at all possible. */
recov_bk++;
CDEBUG(D_MOUNT, "%s: Set MGC reconnect %d\n", mgcname,recov_bk);
- rc = obd_set_info_async(obd->obd_self_export,
+ rc = obd_set_info_async(NULL, obd->obd_self_export,
sizeof(KEY_INIT_RECOV_BACKUP),
KEY_INIT_RECOV_BACKUP,
sizeof(recov_bk), &recov_bk, NULL);
}
} else {
/* Use mgsnode= nids */
- if (class_find_param(ptr, PARAM_MGSNODE, &ptr) != 0) {
+ /* mount -o mgsnode=nid */
+ if (lsi->lsi_lmd->lmd_mgs) {
+ ptr = lsi->lsi_lmd->lmd_mgs;
+ } else if (class_find_param(ptr, PARAM_MGSNODE,
+ &ptr) != 0) {
CERROR("No MGS nids given.\n");
GOTO(out_free, rc = -EINVAL);
}
GOTO(out_free, rc = -ENOTCONN);
}
- rc = obd_set_info_async(obd->obd_self_export,
+ rc = obd_set_info_async(NULL, obd->obd_self_export,
strlen(KEY_MGSSEC), KEY_MGSSEC,
strlen(mgssec), mgssec, NULL);
if (rc)
/* Try all connections, but only once. */
recov_bk = 1;
- rc = obd_set_info_async(obd->obd_self_export,
+ rc = obd_set_info_async(NULL, obd->obd_self_export,
sizeof(KEY_INIT_RECOV_BACKUP),
KEY_INIT_RECOV_BACKUP,
sizeof(recov_bk), &recov_bk, NULL);
CDEBUG(D_MOUNT, "Set mgc disk for %s\n", lsi->lsi_lmd->lmd_dev);
/* cl_mgc_sem in mgc insures we sleep if the mgc_fs is busy */
- rc = obd_set_info_async(mgc->obd_self_export,
+ rc = obd_set_info_async(NULL, mgc->obd_self_export,
sizeof(KEY_SET_FS), KEY_SET_FS,
sizeof(*sb), sb, NULL);
if (rc) {
CDEBUG(D_MOUNT, "Unassign mgc disk\n");
- rc = obd_set_info_async(mgc->obd_self_export,
+ rc = obd_set_info_async(NULL, mgc->obd_self_export,
sizeof(KEY_CLEAR_FS), KEY_CLEAR_FS,
0, NULL, NULL);
RETURN(rc);
/* Register the target */
/* FIXME use mgc_process_config instead */
- rc = obd_set_info_async(mgc->u.cli.cl_mgc_mgsexp,
+ rc = obd_set_info_async(NULL, mgc->u.cli.cl_mgc_mgsexp,
sizeof(KEY_REGISTER_TARGET), KEY_REGISTER_TARGET,
sizeof(*mti), mti, NULL);
if (rc) {
sizeof(ldd->ldd_svname));
/* or ldd_make_sv_name(ldd); */
ldd_write(&mgc->obd_lvfs_ctxt, ldd);
+ if (lsi->lsi_lmd->lmd_osd_type)
+ goto out;
err = fsfilt_set_label(mgc, lsi->lsi_srv_mnt->mnt_sb,
mti->mti_svname);
if (err)
mti->mti_flags |= LDD_F_OPC_READY;
/* FIXME use mgc_process_config instead */
- rc = obd_set_info_async(mgc->u.cli.cl_mgc_mgsexp,
+ rc = obd_set_info_async(NULL, mgc->u.cli.cl_mgc_mgsexp,
sizeof(KEY_REGISTER_TARGET),
KEY_REGISTER_TARGET,
sizeof(*mti), mti, NULL);
/* Set the mgc fs to our server disk. This allows the MGC to
* read and write configs locally, in case it can't talk to the MGS. */
- rc = server_mgc_set_fs(lsi->lsi_mgc, sb);
- if (rc)
- RETURN(rc);
+ if (lsi->lsi_lmd->lmd_osd_type == NULL) {
+ rc = server_mgc_set_fs(lsi->lsi_mgc, sb);
+ if (rc)
+ RETURN(rc);
+ }
/* Register with MGS */
rc = server_register_target(sb);
out_mgc:
/* Release the mgc fs for others to use */
- server_mgc_clear_fs(lsi->lsi_mgc);
+ if (lsi->lsi_lmd->lmd_osd_type == NULL)
+ server_mgc_clear_fs(lsi->lsi_mgc);
if (!rc) {
obd = class_name2obd(lsi->lsi_ldd->ldd_svname);
OBD_FREE(lsi->lsi_lmd->lmd_exclude,
sizeof(lsi->lsi_lmd->lmd_exclude[0]) *
lsi->lsi_lmd->lmd_exclude_count);
+ if (lsi->lsi_lmd->lmd_mgs != NULL)
+ OBD_FREE(lsi->lsi_lmd->lmd_mgs,
+ strlen(lsi->lsi_lmd->lmd_mgs) + 1);
+ if (lsi->lsi_lmd->lmd_osd_type != NULL)
+ OBD_FREE(lsi->lsi_lmd->lmd_osd_type,
+ strlen(lsi->lsi_lmd->lmd_osd_type) + 1);
+
OBD_FREE(lsi->lsi_lmd, sizeof(*lsi->lsi_lmd));
}
RETURN(0);
}
+static int lsi_prepare(struct lustre_sb_info *lsi)
+{
+ struct lustre_disk_data *ldd;
+ __u32 index;
+ int rc;
+ ENTRY;
+
+ LASSERT(lsi);
+ LASSERT(lsi->lsi_lmd);
+
+ OBD_ALLOC(ldd, sizeof(*ldd));
+ if (ldd == NULL)
+ RETURN(-ENOMEM);
+ strcpy(lsi->lsi_osd_type, LUSTRE_OSD_NAME);
+
+ /* The server name is given as a mount line option */
+ if (lsi->lsi_lmd->lmd_profile == NULL) {
+ LCONSOLE_ERROR("Can't determine server name\n");
+ RETURN(-EINVAL);
+ }
+
+ if (strlen(lsi->lsi_lmd->lmd_profile) >= sizeof(ldd->ldd_svname))
+ RETURN(-ENAMETOOLONG);
+
+ strcpy(ldd->ldd_svname, lsi->lsi_lmd->lmd_profile);
+ strcpy(ldd->ldd_fsname, "lustre");
+
+ /* Determine osd type */
+ if (lsi->lsi_lmd->lmd_osd_type != NULL) {
+ if (strlen(lsi->lsi_lmd->lmd_osd_type) >=
+ sizeof(lsi->lsi_osd_type))
+ RETURN (-ENAMETOOLONG);
+
+ strcpy(lsi->lsi_osd_type, lsi->lsi_lmd->lmd_osd_type);
+ }
+
+ /* Determine server type */
+ rc = server_name2index(ldd->ldd_svname, &index, NULL);
+ if (rc < 0) {
+ if (0 /*lsi->lsi_lmd->lmd_flags & LMD_FLG_MGS*/) {
+ /* Assume we're a bare MGS */
+ rc = 0;
+ lsi->lsi_lmd->lmd_flags |= LMD_FLG_NOSVC;
+ } else {
+ LCONSOLE_ERROR("Can't determine server type of '%s'\n",
+ lsi->lsi_svname);
+ RETURN(rc);
+ }
+ }
+ ldd->ldd_svindex = index;
+ //lsi->lsi_flags |= rc;
+ ldd->ldd_flags = rc | LDD_F_WRITECONF;
+
+ lsi->lsi_ldd = ldd;
+
+ /* Add mount line flags that used to be in ldd:
+ * writeconf, mgs, iam, anything else?
+ */
+#if 0
+ lsi->lsi_flags |= (lsi->lsi_lmd->lmd_flags & LMD_FLG_WRITECONF) ?
+ LDD_F_WRITECONF : 0;
+ lsi->lsi_flags |= (lsi->lsi_lmd->lmd_flags & LMD_FLG_MGS) ?
+ LDD_F_SV_TYPE_MGS : 0;
+ lsi->lsi_flags |= (lsi->lsi_lmd->lmd_flags & LMD_FLG_IAM) ?
+ LDD_F_IAM_DIR : 0;
+ lsi->lsi_flags |= (lsi->lsi_lmd->lmd_flags & LMD_FLG_NO_PRIMNODE) ?
+ LDD_F_NO_PRIMNODE : 0;
+#endif
+
+ RETURN(0);
+}
+
/*************** server mount ******************/
/** Kernel mount using mount options in MOUNT_DATA_FILE.
struct lustre_disk_data *ldd;
struct lustre_mount_data *lmd = lsi->lsi_lmd;
struct vfsmount *mnt;
+ struct file_system_type *type;
char *options = NULL;
unsigned long page, s_flags;
struct page *__page;
int rc;
ENTRY;
+ if (lsi->lsi_lmd->lmd_osd_type) {
+ rc = lsi_prepare(lsi);
+ RETURN(ERR_PTR(rc));
+ }
+
OBD_ALLOC(ldd, sizeof(*ldd));
if (!ldd)
RETURN(ERR_PTR(-ENOMEM));
+ strcpy(lsi->lsi_osd_type, LUSTRE_OSD_NAME);
/* In the past, we have always used flags = 0.
Note ext3/ldiskfs can't be mounted ro. */
/* Pre-mount ldiskfs to read the MOUNT_DATA_FILE */
CDEBUG(D_MOUNT, "Pre-mount ldiskfs %s\n", lmd->lmd_dev);
- mnt = ll_kern_mount("ldiskfs", s_flags, lmd->lmd_dev, (void *)options);
+ type = get_fs_type("ldiskfs");
+ if (!type) {
+ CERROR("premount failed: cannot find ldiskfs module\n");
+ GOTO(out_free, rc = -ENODEV);
+ }
+ mnt = vfs_kern_mount(type, s_flags, lmd->lmd_dev, (void *)options);
+ cfs_module_put(type->owner);
if (IS_ERR(mnt)) {
rc = PTR_ERR(mnt);
CERROR("premount %s:%#lx ldiskfs failed: %d "
CDEBUG(D_MOUNT, "kern_mount: %s %s %s\n",
MT_STR(ldd), lmd->lmd_dev, options);
- mnt = ll_kern_mount(MT_STR(ldd), s_flags, lmd->lmd_dev,
- (void *)options);
+ type = get_fs_type(MT_STR(ldd));
+ if (!type) {
+ CERROR("get_fs_type failed\n");
+ GOTO(out_free, rc = -ENODEV);
+ }
+ mnt = vfs_kern_mount(type, s_flags, lmd->lmd_dev, (void *)options);
+ cfs_module_put(type->owner);
if (IS_ERR(mnt)) {
rc = PTR_ERR(mnt);
- CERROR("ll_kern_mount failed: rc = %d\n", rc);
+ CERROR("vfs_kern_mount failed: rc = %d\n", rc);
GOTO(out_free, rc);
}
int rc, waited = 0;
cfs_sigset_t blocked;
+ if (mnt == NULL) {
+ cfs_waitq_init(&waitq);
+ cfs_waitq_wait_event_interruptible_timeout(waitq, 0,
+ cfs_time_seconds(3), rc);
+ return;
+ }
+
+ LASSERT(mnt);
cfs_waitq_init(&waitq);
while (mnt_get_count(mnt) > 1) {
(mnt_get_count(mnt) == 1),
cfs_time_seconds(3),
rc);
- cfs_block_sigs(blocked);
+ cfs_restore_sigs(blocked);
if (rc < 0) {
LCONSOLE_EMERG("Danger: interrupted umount %s with "
"%d refs!\n", mnt->mnt_devname,
should have put it on a different device. */
if (IS_MGS(lsi->lsi_ldd)) {
/* if MDS start with --nomgs, don't stop MGS then */
- if (!(lsi->lsi_lmd->lmd_flags & LMD_FLG_NOMGS)) {
- char *logname;
-
- OBD_ALLOC(logname, MGS_PARAM_MAXLEN);
- if (!logname) {
- LCONSOLE_WARN("Stopping mgs failed %d, please "
- "try again.", -ENOMEM);
- return;
- }
- strcpy(logname, lsi->lsi_ldd->ldd_fsname);
- strcat(logname, "-params");
- /* tell the mgc to drop parameter config log */
- lustre_end_log(sb, logname, NULL);
- OBD_FREE(logname, MGS_PARAM_MAXLEN);
-
+ if (!(lsi->lsi_lmd->lmd_flags & LMD_FLG_NOMGS))
server_stop_mgs(sb);
- }
}
/* Clean the mgc and sb */
server_wait_finished(mnt);
/* drop the One True Mount */
- unlock_mntput(mnt);
+ if (mnt)
+ unlock_mntput(mnt);
- /* Stop the servers (MDS, OSS) if no longer needed. We must wait
- until the target is really gone so that our type refcount check
- is right. */
- server_stop_servers(lddflags, lsiflags);
+ /* Stop the servers (MDS, OSS) if no longer needed. We must wait
+ until the target is really gone so that our type refcount check
+ is right. */
+ server_stop_servers(lddflags, lsiflags);
- /* In case of startup or cleanup err, stop related obds */
- if (extraname) {
- obd = class_name2obd(extraname);
+ /* In case of startup or cleanup err, stop related obds */
+ if (extraname) {
+ obd = class_name2obd(extraname);
if (obd) {
CWARN("Cleaning orphaned obd %s\n", extraname);
obd->obd_force = 1;
Client will not finish until all servers are connected.
Note - MGS-only server does NOT get a client, since there is no
lustre fs associated - the MGS is for all lustre fs's */
- } else if (IS_MGS(lsi->lsi_ldd) &&
- !(lsi->lsi_lmd->lmd_flags & LMD_FLG_NOMGS)){
- struct config_llog_instance cfg;
- char *logname;
-
- OBD_ALLOC(logname, MGS_PARAM_MAXLEN);
- if (logname == NULL)
- GOTO(out_mnt, rc = -ENOMEM);
- strcpy(logname, lsi->lsi_ldd->ldd_fsname);
- strcat(logname, "-params");
-
- memset(&cfg, 0, sizeof(cfg));
- rc = lustre_process_log(sb, logname, &cfg);
- OBD_FREE(logname, MGS_PARAM_MAXLEN);
- if (rc) {
- CERROR("failed to process parameters %s: %d\n",
- logname, rc);
- GOTO(out_mnt, rc);
- }
}
rc = server_fill_super_common(sb);
return 0;
}
+static int lmd_parse_string(char **handle, char *ptr)
+{
+ char *tail;
+ int length;
+
+ if ((handle == NULL) || (ptr == NULL))
+ return -EINVAL;
+
+ if (*handle != NULL) {
+ OBD_FREE(*handle, strlen(*handle) + 1);
+ *handle = NULL;
+ }
+
+ tail = strchr(ptr, ',');
+ if (tail == NULL)
+ length = strlen(ptr);
+ else
+ length = tail - ptr;
+
+ OBD_ALLOC(*handle, length + 1);
+ if (*handle == NULL)
+ return -ENOMEM;
+
+ memcpy(*handle, ptr, length);
+ (*handle)[length] = '\0';
+
+ return 0;
+}
+
+/* Collect multiple values for mgsnid specifiers */
+static int lmd_parse_mgs(struct lustre_mount_data *lmd, char **ptr)
+{
+ lnet_nid_t nid;
+ char *tail = *ptr;
+ char *mgsnid;
+ int length;
+ int oldlen = 0;
+
+ /* Find end of nidlist */
+ while (class_parse_nid(tail, &nid, &tail) == 0) {}
+ length = tail - *ptr;
+ if (length == 0) {
+ LCONSOLE_ERROR_MSG(0x159, "Can't parse NID '%s'\n", *ptr);
+ return -EINVAL;
+ }
+
+ if (lmd->lmd_mgs != NULL)
+ oldlen = strlen(lmd->lmd_mgs) + 1;
+
+ OBD_ALLOC(mgsnid, oldlen + length + 1);
+ if (mgsnid == NULL)
+ return -ENOMEM;
+
+ if (lmd->lmd_mgs != NULL) {
+ /* Multiple mgsnid= are taken to mean failover locations */
+ memcpy(mgsnid, lmd->lmd_mgs, oldlen);
+ mgsnid[oldlen - 1] = ':';
+ OBD_FREE(lmd->lmd_mgs, oldlen);
+ }
+ memcpy(mgsnid + oldlen, *ptr, length);
+ mgsnid[oldlen + length] = '\0';
+ lmd->lmd_mgs = mgsnid;
+ *ptr = tail;
+
+ return 0;
+}
+
/** Parse mount line options
* 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
} else if (strncmp(s1, "nomgs", 5) == 0) {
lmd->lmd_flags |= LMD_FLG_NOMGS;
clear++;
+ } else if (strncmp(s1, "noscrub", 7) == 0) {
+ lmd->lmd_flags |= LMD_FLG_NOSCRUB;
+ clear++;
+ } else if (strncmp(s1, PARAM_MGSNODE,
+ sizeof(PARAM_MGSNODE) - 1) == 0) {
+ s2 = s1 + sizeof(PARAM_MGSNODE) - 1;
+ /* Assume the next mount opt is the first
+ invalid nid we get to. */
+ rc = lmd_parse_mgs(lmd, &s2);
+ if (rc)
+ goto invalid;
+ clear++;
} else if (strncmp(s1, "writeconf", 9) == 0) {
lmd->lmd_flags |= LMD_FLG_WRITECONF;
clear++;
if (rc)
goto invalid;
clear++;
+ } else if (strncmp(s1, "svname=", 7) == 0) {
+ rc = lmd_parse_string(&lmd->lmd_profile, s1 + 7);
+ if (rc)
+ goto invalid;
+ clear++;
+ } else if (strncmp(s1, "osd=", 4) == 0) {
+ rc = lmd_parse_string(&lmd->lmd_osd_type, s1 + 4);
+ if (rc)
+ goto invalid;
+ /* with ldiskfs we're still doing ldd parsing
+ * in the kernel space */
+ if (!strcmp(lmd->lmd_osd_type, "osd-ldiskfs")) {
+ OBD_FREE(lmd->lmd_osd_type,
+ strlen(lmd->lmd_osd_type) + 1);
+ lmd->lmd_osd_type = NULL;
+ }
+ clear++;
}
/* Linux 2.4 doesn't pass the device, so we stuck it at the
end of the options. */
git://git.whamcloud.com / fs / lustre-release.git / blobdiff