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Diffstat (limited to 'net/tipc/name_table.c')
-rw-r--r--net/tipc/name_table.c127
1 files changed, 30 insertions, 97 deletions
diff --git a/net/tipc/name_table.c b/net/tipc/name_table.c
index 8ba79620db3f..205ed4a4e186 100644
--- a/net/tipc/name_table.c
+++ b/net/tipc/name_table.c
@@ -36,15 +36,10 @@
#include "core.h"
#include "config.h"
-#include "dbg.h"
#include "name_table.h"
#include "name_distr.h"
-#include "addr.h"
-#include "node_subscr.h"
#include "subscr.h"
#include "port.h"
-#include "cluster.h"
-#include "bcast.h"
static int tipc_nametbl_size = 1024; /* must be a power of 2 */
@@ -109,14 +104,14 @@ struct name_table {
u32 local_publ_count;
};
-static struct name_table table = { NULL } ;
+static struct name_table table;
static atomic_t rsv_publ_ok = ATOMIC_INIT(0);
DEFINE_RWLOCK(tipc_nametbl_lock);
static int hash(int x)
{
- return(x & (tipc_nametbl_size - 1));
+ return x & (tipc_nametbl_size - 1);
}
/**
@@ -177,8 +172,6 @@ static struct name_seq *tipc_nameseq_create(u32 type, struct hlist_head *seq_hea
spin_lock_init(&nseq->lock);
nseq->type = type;
nseq->sseqs = sseq;
- dbg("tipc_nameseq_create(): nseq = %p, type %u, ssseqs %p, ff: %u\n",
- nseq, type, nseq->sseqs, nseq->first_free);
nseq->alloc = 1;
INIT_HLIST_NODE(&nseq->ns_list);
INIT_LIST_HEAD(&nseq->subscriptions);
@@ -256,8 +249,6 @@ static struct publication *tipc_nameseq_insert_publ(struct name_seq *nseq,
int created_subseq = 0;
sseq = nameseq_find_subseq(nseq, lower);
- dbg("nameseq_ins: for seq %p, {%u,%u}, found sseq %p\n",
- nseq, type, lower, sseq);
if (sseq) {
/* Lower end overlaps existing entry => need an exact match */
@@ -294,38 +285,30 @@ static struct publication *tipc_nameseq_insert_publ(struct name_seq *nseq,
type, lower, upper);
return NULL;
}
- dbg("Allocated %u more sseqs\n", nseq->alloc);
memcpy(sseqs, nseq->sseqs,
nseq->alloc * sizeof(struct sub_seq));
kfree(nseq->sseqs);
nseq->sseqs = sseqs;
nseq->alloc *= 2;
}
- dbg("Have %u sseqs for type %u\n", nseq->alloc, type);
/* Insert new sub-sequence */
- dbg("ins in pos %u, ff = %u\n", inspos, nseq->first_free);
sseq = &nseq->sseqs[inspos];
freesseq = &nseq->sseqs[nseq->first_free];
- memmove(sseq + 1, sseq, (freesseq - sseq) * sizeof (*sseq));
- memset(sseq, 0, sizeof (*sseq));
+ memmove(sseq + 1, sseq, (freesseq - sseq) * sizeof(*sseq));
+ memset(sseq, 0, sizeof(*sseq));
nseq->first_free++;
sseq->lower = lower;
sseq->upper = upper;
created_subseq = 1;
}
- dbg("inserting {%u,%u,%u} from <0x%x:%u> into sseq %p(%u,%u) of seq %p\n",
- type, lower, upper, node, port, sseq,
- sseq->lower, sseq->upper, nseq);
/* Insert a publication: */
publ = publ_create(type, lower, upper, scope, node, port, key);
if (!publ)
return NULL;
- dbg("inserting publ %p, node=0x%x publ->node=0x%x, subscr->node=%p\n",
- publ, node, publ->node, publ->subscr.node);
sseq->zone_list_size++;
if (!sseq->zone_list)
@@ -360,7 +343,6 @@ static struct publication *tipc_nameseq_insert_publ(struct name_seq *nseq,
* Any subscriptions waiting for notification?
*/
list_for_each_entry_safe(s, st, &nseq->subscriptions, nameseq_list) {
- dbg("calling report_overlap()\n");
tipc_subscr_report_overlap(s,
publ->lower,
publ->upper,
@@ -398,9 +380,6 @@ static struct publication *tipc_nameseq_remove_publ(struct name_seq *nseq, u32 i
if (!sseq)
return NULL;
- dbg("tipc_nameseq_remove_publ: seq: %p, sseq %p, {%u,%u}, key %u\n",
- nseq, sseq, nseq->type, inst, key);
-
/* Remove publication from zone scope list */
prev = sseq->zone_list;
@@ -492,7 +471,7 @@ end_node:
if (!sseq->zone_list) {
free = &nseq->sseqs[nseq->first_free--];
- memmove(sseq, sseq + 1, (free - (sseq + 1)) * sizeof (*sseq));
+ memmove(sseq, sseq + 1, (free - (sseq + 1)) * sizeof(*sseq));
removed_subseq = 1;
}
@@ -528,7 +507,7 @@ static void tipc_nameseq_subscribe(struct name_seq *nseq, struct subscription *s
while (sseq != &nseq->sseqs[nseq->first_free]) {
struct publication *zl = sseq->zone_list;
- if (zl && tipc_subscr_overlap(s,sseq->lower,sseq->upper)) {
+ if (zl && tipc_subscr_overlap(s, sseq->lower, sseq->upper)) {
struct publication *crs = zl;
int must_report = 1;
@@ -554,15 +533,10 @@ static struct name_seq *nametbl_find_seq(u32 type)
struct hlist_node *seq_node;
struct name_seq *ns;
- dbg("find_seq %u,(%u,0x%x) table = %p, hash[type] = %u\n",
- type, htonl(type), type, table.types, hash(type));
-
seq_head = &table.types[hash(type)];
hlist_for_each_entry(ns, seq_node, seq_head, ns_list) {
- if (ns->type == type) {
- dbg("found %p\n", ns);
+ if (ns->type == type)
return ns;
- }
}
return NULL;
@@ -573,18 +547,14 @@ struct publication *tipc_nametbl_insert_publ(u32 type, u32 lower, u32 upper,
{
struct name_seq *seq = nametbl_find_seq(type);
- dbg("tipc_nametbl_insert_publ: {%u,%u,%u} found %p\n", type, lower, upper, seq);
if (lower > upper) {
warn("Failed to publish illegal {%u,%u,%u}\n",
type, lower, upper);
return NULL;
}
- dbg("Publishing {%u,%u,%u} from 0x%x\n", type, lower, upper, node);
- if (!seq) {
+ if (!seq)
seq = tipc_nameseq_create(type, &table.types[hash(type)]);
- dbg("tipc_nametbl_insert_publ: created %p\n", seq);
- }
if (!seq)
return NULL;
@@ -601,7 +571,6 @@ struct publication *tipc_nametbl_remove_publ(u32 type, u32 lower,
if (!seq)
return NULL;
- dbg("Withdrawing {%u,%u} from 0x%x\n", type, lower, node);
publ = tipc_nameseq_remove_publ(seq, lower, node, ref, key);
if (!seq->first_free && list_empty(&seq->subscriptions)) {
@@ -613,8 +582,7 @@ struct publication *tipc_nametbl_remove_publ(u32 type, u32 lower,
}
/*
- * tipc_nametbl_translate(): Translate tipc_name -> tipc_portid.
- * Very time-critical.
+ * tipc_nametbl_translate - translate name to port id
*
* Note: on entry 'destnode' is the search domain used during translation;
* on exit it passes back the node address of the matching port (if any)
@@ -685,7 +653,6 @@ found:
}
spin_unlock_bh(&seq->lock);
not_found:
- *destnode = 0;
read_unlock_bh(&tipc_nametbl_lock);
return 0;
}
@@ -784,9 +751,8 @@ struct publication *tipc_nametbl_publish(u32 type, u32 lower, u32 upper,
table.local_publ_count++;
publ = tipc_nametbl_insert_publ(type, lower, upper, scope,
tipc_own_addr, port_ref, key);
- if (publ && (scope != TIPC_NODE_SCOPE)) {
+ if (publ && (scope != TIPC_NODE_SCOPE))
tipc_named_publish(publ);
- }
write_unlock_bh(&tipc_nametbl_lock);
return publ;
}
@@ -799,7 +765,6 @@ int tipc_nametbl_withdraw(u32 type, u32 lower, u32 ref, u32 key)
{
struct publication *publ;
- dbg("tipc_nametbl_withdraw: {%u,%u}, key=%u\n", type, lower, key);
write_lock_bh(&tipc_nametbl_lock);
publ = tipc_nametbl_remove_publ(type, lower, tipc_own_addr, ref, key);
if (likely(publ)) {
@@ -829,13 +794,10 @@ void tipc_nametbl_subscribe(struct subscription *s)
write_lock_bh(&tipc_nametbl_lock);
seq = nametbl_find_seq(type);
- if (!seq) {
+ if (!seq)
seq = tipc_nameseq_create(type, &table.types[hash(type)]);
- }
- if (seq){
+ if (seq) {
spin_lock_bh(&seq->lock);
- dbg("tipc_nametbl_subscribe:found %p for {%u,%u,%u}\n",
- seq, type, s->seq.lower, s->seq.upper);
tipc_nameseq_subscribe(seq, s);
spin_unlock_bh(&seq->lock);
} else {
@@ -855,7 +817,7 @@ void tipc_nametbl_unsubscribe(struct subscription *s)
write_lock_bh(&tipc_nametbl_lock);
seq = nametbl_find_seq(s->seq.type);
- if (seq != NULL){
+ if (seq != NULL) {
spin_lock_bh(&seq->lock);
list_del_init(&s->nameseq_list);
spin_unlock_bh(&seq->lock);
@@ -877,7 +839,7 @@ static void subseq_list(struct sub_seq *sseq, struct print_buf *buf, u32 depth,
u32 index)
{
char portIdStr[27];
- char *scopeStr;
+ const char *scope_str[] = {"", " zone", " cluster", " node"};
struct publication *publ = sseq->zone_list;
tipc_printf(buf, "%-10u %-10u ", sseq->lower, sseq->upper);
@@ -888,20 +850,13 @@ static void subseq_list(struct sub_seq *sseq, struct print_buf *buf, u32 depth,
}
do {
- sprintf (portIdStr, "<%u.%u.%u:%u>",
+ sprintf(portIdStr, "<%u.%u.%u:%u>",
tipc_zone(publ->node), tipc_cluster(publ->node),
tipc_node(publ->node), publ->ref);
tipc_printf(buf, "%-26s ", portIdStr);
if (depth > 3) {
- if (publ->node != tipc_own_addr)
- scopeStr = "";
- else if (publ->scope == TIPC_NODE_SCOPE)
- scopeStr = "node";
- else if (publ->scope == TIPC_CLUSTER_SCOPE)
- scopeStr = "cluster";
- else
- scopeStr = "zone";
- tipc_printf(buf, "%-10u %s", publ->key, scopeStr);
+ tipc_printf(buf, "%-10u %s", publ->key,
+ scope_str[publ->scope]);
}
publ = publ->zone_list_next;
@@ -951,24 +906,19 @@ static void nameseq_list(struct name_seq *seq, struct print_buf *buf, u32 depth,
static void nametbl_header(struct print_buf *buf, u32 depth)
{
- tipc_printf(buf, "Type ");
-
- if (depth > 1)
- tipc_printf(buf, "Lower Upper ");
- if (depth > 2)
- tipc_printf(buf, "Port Identity ");
- if (depth > 3)
- tipc_printf(buf, "Publication");
-
- tipc_printf(buf, "\n-----------");
-
- if (depth > 1)
- tipc_printf(buf, "--------------------- ");
- if (depth > 2)
- tipc_printf(buf, "-------------------------- ");
- if (depth > 3)
- tipc_printf(buf, "------------------");
-
+ const char *header[] = {
+ "Type ",
+ "Lower Upper ",
+ "Port Identity ",
+ "Publication Scope"
+ };
+
+ int i;
+
+ if (depth > 4)
+ depth = 4;
+ for (i = 0; i < depth; i++)
+ tipc_printf(buf, header[i]);
tipc_printf(buf, "\n");
}
@@ -1023,16 +973,6 @@ static void nametbl_list(struct print_buf *buf, u32 depth_info,
}
}
-#if 0
-void tipc_nametbl_print(struct print_buf *buf, const char *str)
-{
- tipc_printf(buf, str);
- read_lock_bh(&tipc_nametbl_lock);
- nametbl_list(buf, 0, 0, 0, 0);
- read_unlock_bh(&tipc_nametbl_lock);
-}
-#endif
-
#define MAX_NAME_TBL_QUERY 32768
struct sk_buff *tipc_nametbl_get(const void *req_tlv_area, int req_tlv_space)
@@ -1065,13 +1005,6 @@ struct sk_buff *tipc_nametbl_get(const void *req_tlv_area, int req_tlv_space)
return buf;
}
-#if 0
-void tipc_nametbl_dump(void)
-{
- nametbl_list(TIPC_CONS, 0, 0, 0, 0);
-}
-#endif
-
int tipc_nametbl_init(void)
{
table.types = kcalloc(tipc_nametbl_size, sizeof(struct hlist_head),