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iscsi: Ensure uniqueness of network portal by mutex

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Network portal must be unique globally but mutex is not added yet.
This patch is added to ensure it.

Change-Id: I3cdd85fd524b0da767d3cd83022e0637f3a32bc9
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-on: https://review.gerrithub.io/396846
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
This commit is contained in:
Shuhei Matsumoto 2018-01-29 10:30:45 +09:00 committed by Jim Harris
parent 5d2881c6dd
commit 950065042c
2 changed files with 21 additions and 10 deletions
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30
lib/iscsi/portal_grp.c
View File

@ -69,18 +69,13 @@ spdk_iscsi_portal_find_by_addr(const char *host, const char *port)
struct spdk_iscsi_portal *
spdk_iscsi_portal_create(const char *host, const char *port, const char *cpumask)
{
struct spdk_iscsi_portal *p = NULL;
struct spdk_iscsi_portal *p = NULL, *tmp;
struct spdk_cpuset *core_mask = NULL;
int rc;
assert(host != NULL);
assert(port != NULL);
p = spdk_iscsi_portal_find_by_addr(host, port);
if (p != NULL) {
SPDK_ERRLOG("portal (%s, %s) already exists\n", host, port);
return NULL;
}
p = calloc(1, sizeof(*p));
if (!p) {
@ -140,7 +135,16 @@ spdk_iscsi_portal_create(const char *host, const char *port, const char *cpumask
p->group = NULL; /* set at a later time by caller */
p->acceptor_poller = NULL;
pthread_mutex_lock(&g_spdk_iscsi.mutex);
tmp = spdk_iscsi_portal_find_by_addr(host, port);
if (tmp != NULL) {
pthread_mutex_unlock(&g_spdk_iscsi.mutex);
SPDK_ERRLOG("portal (%s, %s) already exists\n", host, port);
goto error_out;
}
TAILQ_INSERT_TAIL(&g_spdk_iscsi.portal_head, p, g_tailq);
pthread_mutex_unlock(&g_spdk_iscsi.mutex);
return p;
@ -159,11 +163,16 @@ spdk_iscsi_portal_destroy(struct spdk_iscsi_portal *p)
assert(p != NULL);
SPDK_DEBUGLOG(SPDK_LOG_ISCSI, "spdk_iscsi_portal_destroy\n");
pthread_mutex_lock(&g_spdk_iscsi.mutex);
TAILQ_REMOVE(&g_spdk_iscsi.portal_head, p, g_tailq);
pthread_mutex_unlock(&g_spdk_iscsi.mutex);
free(p->host);
free(p->port);
spdk_cpuset_free(p->cpumask);
free(p);
}
static int
@ -562,13 +571,16 @@ spdk_iscsi_portal_grp_array_create(void)
void
spdk_iscsi_portal_grp_array_destroy(void)
{
struct spdk_iscsi_portal_grp *pg, *tmp;
struct spdk_iscsi_portal_grp *pg;
SPDK_DEBUGLOG(SPDK_LOG_ISCSI, "spdk_iscsi_portal_grp_array_destroy\n");
pthread_mutex_lock(&g_spdk_iscsi.mutex);
TAILQ_FOREACH_SAFE(pg, &g_spdk_iscsi.pg_head, tailq, tmp) {
while (!TAILQ_EMPTY(&g_spdk_iscsi.pg_head)) {
pg = TAILQ_FIRST(&g_spdk_iscsi.pg_head);
TAILQ_REMOVE(&g_spdk_iscsi.pg_head, pg, tailq);
pthread_mutex_unlock(&g_spdk_iscsi.mutex);
spdk_iscsi_portal_grp_destroy(pg);
pthread_mutex_lock(&g_spdk_iscsi.mutex);
}
pthread_mutex_unlock(&g_spdk_iscsi.mutex);
}
@ -653,7 +665,5 @@ spdk_iscsi_portal_grp_release(struct spdk_iscsi_portal_grp *pg)
{
spdk_iscsi_portal_grp_close(pg);
spdk_iscsi_portal_grp_unregister(pg);
pthread_mutex_lock(&g_spdk_iscsi.mutex);
spdk_iscsi_portal_grp_destroy(pg);
pthread_mutex_unlock(&g_spdk_iscsi.mutex);
}

1
test/unit/lib/iscsi/portal_grp.c/portal_grp_ut.c
View File

@ -45,6 +45,7 @@ static int
test_setup(void)
{
TAILQ_INIT(&g_spdk_iscsi.portal_head);
pthread_mutex_init(&g_spdk_iscsi.mutex, NULL);
return 0;
}