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-rw-r--r--fs/dlm/config.c48
-rw-r--r--fs/dlm/config.h3
-rw-r--r--fs/dlm/dlm_internal.h4
-rw-r--r--fs/dlm/member.c34
-rw-r--r--fs/dlm/recoverd.c1
5 files changed, 74 insertions, 16 deletions
diff --git a/fs/dlm/config.c b/fs/dlm/config.c
index 7ceaea3d983b..eac23bd288b2 100644
--- a/fs/dlm/config.c
+++ b/fs/dlm/config.c
@@ -284,6 +284,7 @@ struct node {
struct list_head list; /* space->members */
int nodeid;
int weight;
+ int new;
};
static struct configfs_group_operations clusters_ops = {
@@ -565,6 +566,7 @@ static struct config_item *make_node(struct config_group *g, const char *name)
config_item_init_type_name(&nd->item, name, &node_type);
nd->nodeid = -1;
nd->weight = 1; /* default weight of 1 if none is set */
+ nd->new = 1; /* set to 0 once it's been read by dlm_nodeid_list() */
mutex_lock(&sp->members_lock);
list_add(&nd->list, &sp->members);
@@ -805,12 +807,13 @@ static void put_comm(struct comm *cm)
}
/* caller must free mem */
-int dlm_nodeid_list(char *lsname, int **ids_out)
+int dlm_nodeid_list(char *lsname, int **ids_out, int *ids_count_out,
+ int **new_out, int *new_count_out)
{
struct space *sp;
struct node *nd;
- int i = 0, rv = 0;
- int *ids;
+ int i = 0, rv = 0, ids_count = 0, new_count = 0;
+ int *ids, *new;
sp = get_space(lsname);
if (!sp)
@@ -818,23 +821,50 @@ int dlm_nodeid_list(char *lsname, int **ids_out)
mutex_lock(&sp->members_lock);
if (!sp->members_count) {
- rv = 0;
+ rv = -EINVAL;
+ printk(KERN_ERR "dlm: zero members_count\n");
goto out;
}
- ids = kcalloc(sp->members_count, sizeof(int), GFP_KERNEL);
+ ids_count = sp->members_count;
+
+ ids = kcalloc(ids_count, sizeof(int), GFP_KERNEL);
if (!ids) {
rv = -ENOMEM;
goto out;
}
- rv = sp->members_count;
- list_for_each_entry(nd, &sp->members, list)
+ list_for_each_entry(nd, &sp->members, list) {
ids[i++] = nd->nodeid;
+ if (nd->new)
+ new_count++;
+ }
+
+ if (ids_count != i)
+ printk(KERN_ERR "dlm: bad nodeid count %d %d\n", ids_count, i);
+
+ if (!new_count)
+ goto out_ids;
+
+ new = kcalloc(new_count, sizeof(int), GFP_KERNEL);
+ if (!new) {
+ kfree(ids);
+ rv = -ENOMEM;
+ goto out;
+ }
- if (rv != i)
- printk("bad nodeid count %d %d\n", rv, i);
+ i = 0;
+ list_for_each_entry(nd, &sp->members, list) {
+ if (nd->new) {
+ new[i++] = nd->nodeid;
+ nd->new = 0;
+ }
+ }
+ *new_count_out = new_count;
+ *new_out = new;
+ out_ids:
+ *ids_count_out = ids_count;
*ids_out = ids;
out:
mutex_unlock(&sp->members_lock);
diff --git a/fs/dlm/config.h b/fs/dlm/config.h
index a3170fe22090..4f1d6fce58c5 100644
--- a/fs/dlm/config.h
+++ b/fs/dlm/config.h
@@ -35,7 +35,8 @@ extern struct dlm_config_info dlm_config;
int dlm_config_init(void);
void dlm_config_exit(void);
int dlm_node_weight(char *lsname, int nodeid);
-int dlm_nodeid_list(char *lsname, int **ids_out);
+int dlm_nodeid_list(char *lsname, int **ids_out, int *ids_count_out,
+ int **new_out, int *new_count_out);
int dlm_nodeid_to_addr(int nodeid, struct sockaddr_storage *addr);
int dlm_addr_to_nodeid(struct sockaddr_storage *addr, int *nodeid);
int dlm_our_nodeid(void);
diff --git a/fs/dlm/dlm_internal.h b/fs/dlm/dlm_internal.h
index d30ea8b433a2..c70c8e58358f 100644
--- a/fs/dlm/dlm_internal.h
+++ b/fs/dlm/dlm_internal.h
@@ -133,8 +133,10 @@ struct dlm_member {
struct dlm_recover {
struct list_head list;
- int *nodeids;
+ int *nodeids; /* nodeids of all members */
int node_count;
+ int *new; /* nodeids of new members */
+ int new_count;
uint64_t seq;
};
diff --git a/fs/dlm/member.c b/fs/dlm/member.c
index fa17f5a27883..26133f05ae3a 100644
--- a/fs/dlm/member.c
+++ b/fs/dlm/member.c
@@ -210,6 +210,23 @@ int dlm_recover_members(struct dlm_ls *ls, struct dlm_recover *rv, int *neg_out)
}
}
+ /* Add an entry to ls_nodes_gone for members that were removed and
+ then added again, so that previous state for these nodes will be
+ cleared during recovery. */
+
+ for (i = 0; i < rv->new_count; i++) {
+ if (!dlm_is_member(ls, rv->new[i]))
+ continue;
+ log_debug(ls, "new nodeid %d is a re-added member", rv->new[i]);
+
+ memb = kzalloc(sizeof(struct dlm_member), GFP_KERNEL);
+ if (!memb)
+ return -ENOMEM;
+ memb->nodeid = rv->new[i];
+ list_add_tail(&memb->list, &ls->ls_nodes_gone);
+ neg++;
+ }
+
/* add new members to ls_nodes */
for (i = 0; i < rv->node_count; i++) {
@@ -314,15 +331,16 @@ int dlm_ls_stop(struct dlm_ls *ls)
int dlm_ls_start(struct dlm_ls *ls)
{
struct dlm_recover *rv = NULL, *rv_old;
- int *ids = NULL;
- int error, count;
+ int *ids = NULL, *new = NULL;
+ int error, ids_count = 0, new_count = 0;
rv = kzalloc(sizeof(struct dlm_recover), GFP_KERNEL);
if (!rv)
return -ENOMEM;
- error = count = dlm_nodeid_list(ls->ls_name, &ids);
- if (error <= 0)
+ error = dlm_nodeid_list(ls->ls_name, &ids, &ids_count,
+ &new, &new_count);
+ if (error < 0)
goto fail;
spin_lock(&ls->ls_recover_lock);
@@ -337,14 +355,19 @@ int dlm_ls_start(struct dlm_ls *ls)
}
rv->nodeids = ids;
- rv->node_count = count;
+ rv->node_count = ids_count;
+ rv->new = new;
+ rv->new_count = new_count;
rv->seq = ++ls->ls_recover_seq;
rv_old = ls->ls_recover_args;
ls->ls_recover_args = rv;
spin_unlock(&ls->ls_recover_lock);
if (rv_old) {
+ log_error(ls, "unused recovery %llx %d",
+ (unsigned long long)rv_old->seq, rv_old->node_count);
kfree(rv_old->nodeids);
+ kfree(rv_old->new);
kfree(rv_old);
}
@@ -354,6 +377,7 @@ int dlm_ls_start(struct dlm_ls *ls)
fail:
kfree(rv);
kfree(ids);
+ kfree(new);
return error;
}
diff --git a/fs/dlm/recoverd.c b/fs/dlm/recoverd.c
index 997f9531d594..fd677c8c3d3b 100644
--- a/fs/dlm/recoverd.c
+++ b/fs/dlm/recoverd.c
@@ -257,6 +257,7 @@ static void do_ls_recovery(struct dlm_ls *ls)
if (rv) {
ls_recover(ls, rv);
kfree(rv->nodeids);
+ kfree(rv->new);
kfree(rv);
}
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-15 05:03:19 +0000