#include <linux/crc32.h>
#include <linux/debugfs.h>
#include <linux/mount.h>
-
-#include <cluster/nodemanager.h>
+#include <linux/seq_file.h>
#define MLOG_MASK_PREFIX ML_SUPER
#include <cluster/masklog.h>
unsigned int atime_quantum;
signed short slot;
unsigned int localalloc_opt;
+ char cluster_stack[OCFS2_STACK_LABEL_LEN + 1];
};
static int ocfs2_parse_options(struct super_block *sb, char *options,
static int ocfs2_init_global_system_inodes(struct ocfs2_super *osb);
static int ocfs2_init_local_system_inodes(struct ocfs2_super *osb);
static void ocfs2_release_system_inodes(struct ocfs2_super *osb);
-static int ocfs2_fill_local_node_info(struct ocfs2_super *osb);
static int ocfs2_check_volume(struct ocfs2_super *osb);
static int ocfs2_verify_volume(struct ocfs2_dinode *di,
struct buffer_head *bh,
Opt_commit,
Opt_localalloc,
Opt_localflocks,
+ Opt_stack,
Opt_err,
};
{Opt_commit, "commit=%u"},
{Opt_localalloc, "localalloc=%d"},
{Opt_localflocks, "localflocks"},
+ {Opt_stack, "cluster_stack=%s"},
{Opt_err, NULL}
};
}
}
+ if (ocfs2_userspace_stack(osb)) {
+ if (osb->s_mount_opt & OCFS2_MOUNT_HB_LOCAL) {
+ mlog(ML_ERROR, "Userspace stack expected, but "
+ "o2cb heartbeat arguments passed to mount\n");
+ return -EINVAL;
+ }
+ }
+
if (!(osb->s_mount_opt & OCFS2_MOUNT_HB_LOCAL)) {
- if (!ocfs2_mount_local(osb) && !ocfs2_is_hard_readonly(osb)) {
+ if (!ocfs2_mount_local(osb) && !ocfs2_is_hard_readonly(osb) &&
+ !ocfs2_userspace_stack(osb)) {
mlog(ML_ERROR, "Heartbeat has to be started to mount "
"a read-write clustered device.\n");
return -EINVAL;
return 0;
}
+/*
+ * If we're using a userspace stack, mount should have passed
+ * a name that matches the disk. If not, mount should not
+ * have passed a stack.
+ */
+static int ocfs2_verify_userspace_stack(struct ocfs2_super *osb,
+ struct mount_options *mopt)
+{
+ if (!ocfs2_userspace_stack(osb) && mopt->cluster_stack[0]) {
+ mlog(ML_ERROR,
+ "cluster stack passed to mount, but this filesystem "
+ "does not support it\n");
+ return -EINVAL;
+ }
+
+ if (ocfs2_userspace_stack(osb) &&
+ strncmp(osb->osb_cluster_stack, mopt->cluster_stack,
+ OCFS2_STACK_LABEL_LEN)) {
+ mlog(ML_ERROR,
+ "cluster stack passed to mount (\"%s\") does not "
+ "match the filesystem (\"%s\")\n",
+ mopt->cluster_stack,
+ osb->osb_cluster_stack);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
static int ocfs2_fill_super(struct super_block *sb, void *data, int silent)
{
struct dentry *root;
goto read_super_error;
}
- /* for now we only have one cluster/node, make sure we see it
- * in the heartbeat universe */
- if (parsed_options.mount_opt & OCFS2_MOUNT_HB_LOCAL) {
- if (!o2hb_check_local_node_heartbeating()) {
- status = -EINVAL;
- goto read_super_error;
- }
- }
-
/* probe for superblock */
status = ocfs2_sb_probe(sb, &bh, §or_size);
if (status < 0) {
osb->osb_commit_interval = parsed_options.commit_interval;
osb->local_alloc_size = parsed_options.localalloc_opt;
+ status = ocfs2_verify_userspace_stack(osb, &parsed_options);
+ if (status)
+ goto read_super_error;
+
sb->s_magic = OCFS2_SUPER_MAGIC;
/* Hard readonly mode only if: bdev_read_only, MS_RDONLY,
if (ocfs2_mount_local(osb))
snprintf(nodestr, sizeof(nodestr), "local");
else
- snprintf(nodestr, sizeof(nodestr), "%d", osb->node_num);
+ snprintf(nodestr, sizeof(nodestr), "%u", osb->node_num);
printk(KERN_INFO "ocfs2: Mounting device (%s) on (node %s, slot %d) "
"with %s data mode.\n",
mopt->atime_quantum = OCFS2_DEFAULT_ATIME_QUANTUM;
mopt->slot = OCFS2_INVALID_SLOT;
mopt->localalloc_opt = OCFS2_DEFAULT_LOCAL_ALLOC_SIZE;
+ mopt->cluster_stack[0] = '\0';
if (!options) {
status = 1;
if (!is_remount)
mopt->mount_opt |= OCFS2_MOUNT_LOCALFLOCKS;
break;
+ case Opt_stack:
+ /* Check both that the option we were passed
+ * is of the right length and that it is a proper
+ * string of the right length.
+ */
+ if (((args[0].to - args[0].from) !=
+ OCFS2_STACK_LABEL_LEN) ||
+ (strnlen(args[0].from,
+ OCFS2_STACK_LABEL_LEN) !=
+ OCFS2_STACK_LABEL_LEN)) {
+ mlog(ML_ERROR,
+ "Invalid cluster_stack option\n");
+ status = 0;
+ goto bail;
+ }
+ memcpy(mopt->cluster_stack, args[0].from,
+ OCFS2_STACK_LABEL_LEN);
+ mopt->cluster_stack[OCFS2_STACK_LABEL_LEN] = '\0';
+ break;
default:
mlog(ML_ERROR,
"Unrecognized mount option \"%s\" "
if (opts & OCFS2_MOUNT_LOCALFLOCKS)
seq_printf(s, ",localflocks,");
+ if (osb->osb_cluster_stack[0])
+ seq_printf(s, ",cluster_stack=%.*s", OCFS2_STACK_LABEL_LEN,
+ osb->osb_cluster_stack);
+
return 0;
}
mlog(ML_ERROR, "Unable to create ocfs2 debugfs root.\n");
}
+ ocfs2_set_locking_protocol();
+
leave:
if (status < 0) {
ocfs2_free_mem_caches();
return 0;
}
-/* ocfs2 1.0 only allows one cluster and node identity per kernel image. */
-static int ocfs2_fill_local_node_info(struct ocfs2_super *osb)
-{
- int status;
-
- /* XXX hold a ref on the node while mounte? easy enough, if
- * desirable. */
- if (ocfs2_mount_local(osb))
- osb->node_num = 0;
- else
- osb->node_num = o2nm_this_node();
-
- if (osb->node_num == O2NM_MAX_NODES) {
- mlog(ML_ERROR, "could not find this host's node number\n");
- status = -ENOENT;
- goto bail;
- }
-
- mlog(0, "I am node %d\n", osb->node_num);
-
- status = 0;
-bail:
- return status;
-}
-
static int ocfs2_mount_volume(struct super_block *sb)
{
int status = 0;
if (ocfs2_is_hard_readonly(osb))
goto leave;
- status = ocfs2_fill_local_node_info(osb);
- if (status < 0) {
- mlog_errno(status);
- goto leave;
- }
-
status = ocfs2_dlm_init(osb);
if (status < 0) {
mlog_errno(status);
return status;
}
-/* we can't grab the goofy sem lock from inside wait_event, so we use
- * memory barriers to make sure that we'll see the null task before
- * being woken up */
-static int ocfs2_recovery_thread_running(struct ocfs2_super *osb)
-{
- mb();
- return osb->recovery_thread_task != NULL;
-}
-
static void ocfs2_dismount_volume(struct super_block *sb, int mnt_err)
{
- int tmp;
+ int tmp, hangup_needed = 0;
struct ocfs2_super *osb = NULL;
char nodestr[8];
ocfs2_truncate_log_shutdown(osb);
- /* disable any new recovery threads and wait for any currently
- * running ones to exit. Do this before setting the vol_state. */
- mutex_lock(&osb->recovery_lock);
- osb->disable_recovery = 1;
- mutex_unlock(&osb->recovery_lock);
- wait_event(osb->recovery_event, !ocfs2_recovery_thread_running(osb));
-
- /* At this point, we know that no more recovery threads can be
- * launched, so wait for any recovery completion work to
- * complete. */
- flush_workqueue(ocfs2_wq);
+ /* This will disable recovery and flush any recovery work. */
+ ocfs2_recovery_exit(osb);
ocfs2_journal_shutdown(osb);
ocfs2_sync_blockdev(sb);
- /* No dlm means we've failed during mount, so skip all the
- * steps which depended on that to complete. */
- if (osb->dlm) {
+ /* No cluster connection means we've failed during mount, so skip
+ * all the steps which depended on that to complete. */
+ if (osb->cconn) {
tmp = ocfs2_super_lock(osb, 1);
if (tmp < 0) {
mlog_errno(tmp);
if (osb->slot_num != OCFS2_INVALID_SLOT)
ocfs2_put_slot(osb);
- if (osb->dlm)
+ if (osb->cconn)
ocfs2_super_unlock(osb, 1);
ocfs2_release_system_inodes(osb);
- if (osb->dlm)
- ocfs2_dlm_shutdown(osb);
+ /*
+ * If we're dismounting due to mount error, mount.ocfs2 will clean
+ * up heartbeat. If we're a local mount, there is no heartbeat.
+ * If we failed before we got a uuid_str yet, we can't stop
+ * heartbeat. Otherwise, do it.
+ */
+ if (!mnt_err && !ocfs2_mount_local(osb) && osb->uuid_str)
+ hangup_needed = 1;
+
+ if (osb->cconn)
+ ocfs2_dlm_shutdown(osb, hangup_needed);
debugfs_remove(osb->osb_debug_root);
- if (!mnt_err)
- ocfs2_stop_heartbeat(osb);
+ if (hangup_needed)
+ ocfs2_cluster_hangup(osb->uuid_str, strlen(osb->uuid_str));
atomic_set(&osb->vol_state, VOLUME_DISMOUNTED);
if (ocfs2_mount_local(osb))
snprintf(nodestr, sizeof(nodestr), "local");
else
- snprintf(nodestr, sizeof(nodestr), "%d", osb->node_num);
+ snprintf(nodestr, sizeof(nodestr), "%u", osb->node_num);
printk(KERN_INFO "ocfs2: Unmounting device (%s) on (node %s)\n",
osb->dev_str, nodestr);
sb->s_fs_info = osb;
sb->s_op = &ocfs2_sops;
sb->s_export_op = &ocfs2_export_ops;
- osb->osb_locking_proto = ocfs2_locking_protocol;
sb->s_time_gran = 1;
sb->s_flags |= MS_NOATIME;
/* this is needed to support O_LARGEFILE */
osb->s_sectsize_bits = blksize_bits(sector_size);
BUG_ON(!osb->s_sectsize_bits);
- init_waitqueue_head(&osb->recovery_event);
spin_lock_init(&osb->dc_task_lock);
init_waitqueue_head(&osb->dc_event);
osb->dc_work_sequence = 0;
INIT_LIST_HEAD(&osb->blocked_lock_list);
osb->blocked_lock_count = 0;
spin_lock_init(&osb->osb_lock);
+ ocfs2_init_inode_steal_slot(osb);
atomic_set(&osb->alloc_stats.moves, 0);
atomic_set(&osb->alloc_stats.local_data, 0);
snprintf(osb->dev_str, sizeof(osb->dev_str), "%u,%u",
MAJOR(osb->sb->s_dev), MINOR(osb->sb->s_dev));
- mutex_init(&osb->recovery_lock);
-
- osb->disable_recovery = 0;
- osb->recovery_thread_task = NULL;
+ status = ocfs2_recovery_init(osb);
+ if (status) {
+ mlog(ML_ERROR, "Unable to initialize recovery state\n");
+ mlog_errno(status);
+ goto bail;
+ }
init_waitqueue_head(&osb->checkpoint_event);
atomic_set(&osb->needs_checkpoint, 0);
osb->s_atime_quantum = OCFS2_DEFAULT_ATIME_QUANTUM;
- osb->node_num = O2NM_INVALID_NODE_NUM;
osb->slot_num = OCFS2_INVALID_SLOT;
osb->local_alloc_state = OCFS2_LA_UNUSED;
osb->local_alloc_bh = NULL;
- ocfs2_setup_hb_callbacks(osb);
-
init_waitqueue_head(&osb->osb_mount_event);
osb->vol_label = kmalloc(OCFS2_MAX_VOL_LABEL_LEN, GFP_KERNEL);
goto bail;
}
+ if (ocfs2_userspace_stack(osb)) {
+ memcpy(osb->osb_cluster_stack,
+ OCFS2_RAW_SB(di)->s_cluster_info.ci_stack,
+ OCFS2_STACK_LABEL_LEN);
+ osb->osb_cluster_stack[OCFS2_STACK_LABEL_LEN] = '\0';
+ if (strlen(osb->osb_cluster_stack) != OCFS2_STACK_LABEL_LEN) {
+ mlog(ML_ERROR,
+ "couldn't mount because of an invalid "
+ "cluster stack label (%s) \n",
+ osb->osb_cluster_stack);
+ status = -EINVAL;
+ goto bail;
+ }
+ } else {
+ /* The empty string is identical with classic tools that
+ * don't know about s_cluster_info. */
+ osb->osb_cluster_stack[0] = '\0';
+ }
+
get_random_bytes(&osb->s_next_generation, sizeof(u32));
/* FIXME
/* This function assumes that the caller has the main osb resource */
- if (osb->slot_info)
- ocfs2_free_slot_info(osb->slot_info);
+ ocfs2_free_slot_info(osb);
kfree(osb->osb_orphan_wipes);
/* FIXME
git.openpandora.org / pandora-kernel.git / blobdiff