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ublk: fix error case in ublk_finish_start

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Use ublk_close_dev_done to release obtained resource
after UBLK_CMD_ADD_DEV is executed in the ublk device
start process.
Rename ublk_delete_dev to ublk_free_dev,
and ublk_close_dev_done to ublk_delete_dev

Also using the correct way -- io_uring_queue_exit()
to release uring in ublk instead of just closing uring fd.

Change-Id: I46a1ddea162adeb6dfe8c9b45082ed2f93f4b309
Signed-off-by: Liu Xiaodong <xiaodong.liu@intel.com>
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/16460
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
This commit is contained in:
Liu Xiaodong 2023-01-25 04:17:46 -05:00 committed by Jim Harris
parent 4c0a39b1d4
commit 0d01a22b67
1 changed files with 38 additions and 22 deletions
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54
lib/ublk/ublk.c
View File

@ -52,7 +52,7 @@ static void ublk_ios_fini(struct spdk_ublk_dev *ublk);
typedef void (*ublk_next_state_fn)(struct spdk_ublk_dev *ublk);
static void ublk_set_params(struct spdk_ublk_dev *ublk);
static void ublk_finish_start(struct spdk_ublk_dev *ublk);
static void ublk_delete_dev(struct spdk_ublk_dev *ublk);
static void ublk_free_dev(struct spdk_ublk_dev *ublk);
static const char *ublk_op_name[64]
__attribute__((unused)) = {
@ -207,6 +207,8 @@ spdk_ublk_init(void)
SPDK_ENV_FOREACH_CORE(i) {
spdk_cpuset_set_cpu(&g_core_mask, i, true);
}
g_ublk_tgt.ctrl_fd = -1;
g_ublk_tgt.ctrl_ring.ring_fd = -1;
}
static int
@ -295,7 +297,7 @@ ublk_ctrl_cmd(struct spdk_ublk_dev *ublk, uint32_t cmd_op)
case UBLK_CMD_STOP_DEV:
break;
case UBLK_CMD_DEL_DEV:
ublk->next_state_fn = ublk_delete_dev;
ublk->next_state_fn = ublk_free_dev;
break;
default:
SPDK_ERRLOG("No match cmd operation,cmd_op = %d\n", cmd_op);
@ -346,6 +348,7 @@ ublk_open(void)
if (rc < 0) {
SPDK_ERRLOG("UBLK ctrl queue_init: %s\n", spdk_strerror(-rc));
close(g_ublk_tgt.ctrl_fd);
g_ublk_tgt.ctrl_fd = -1;
return rc;
}
@ -505,10 +508,14 @@ _ublk_fini(void *args)
if (TAILQ_EMPTY(&g_ublk_bdevs)) {
SPDK_DEBUGLOG(ublk, "finish shutdown\n");
spdk_poller_unregister(&g_ublk_tgt.ctrl_poller);
close(g_ublk_tgt.ctrl_ring.ring_fd);
if (g_ublk_tgt.ctrl_ring.ring_fd >= 0) {
io_uring_queue_exit(&g_ublk_tgt.ctrl_ring);
g_ublk_tgt.ctrl_ring.ring_fd = -1;
}
if (g_ublk_tgt.ctrl_fd >= 0) {
close(g_ublk_tgt.ctrl_fd);
g_ublk_tgt.ctrl_ring.ring_fd = 0;
g_ublk_tgt.ctrl_fd = 0;
g_ublk_tgt.ctrl_fd = -1;
}
spdk_for_each_thread(ublk_thread_exit, NULL, _ublk_fini_done);
} else {
spdk_thread_send_msg(spdk_get_thread(), _ublk_fini, NULL);
@ -656,7 +663,7 @@ ublk_dev_list_unregister(struct spdk_ublk_dev *ublk)
}
static void
ublk_close_dev_done(void *arg)
ublk_delete_dev(void *arg)
{
struct spdk_ublk_dev *ublk = arg;
int rc = 0;
@ -678,7 +685,7 @@ ublk_close_dev_done(void *arg)
}
static void
ublk_delete_dev(struct spdk_ublk_dev *ublk)
ublk_free_dev(struct spdk_ublk_dev *ublk)
{
if (ublk->bdev_desc) {
spdk_bdev_close(ublk->bdev_desc);
@ -707,7 +714,7 @@ _ublk_close_dev_retry(void *arg)
SPDK_ERRLOG("Timeout on ctrl op completion.\n");
}
spdk_poller_unregister(&ublk->retry_poller);
ublk_close_dev_done(ublk);
ublk_delete_dev(ublk);
return SPDK_POLLER_BUSY;
}
@ -729,7 +736,7 @@ _ublk_try_close_dev(void *arg)
UBLK_BUSY_POLLING_INTERVAL_US);
return SPDK_POLLER_BUSY;
} else {
ublk_close_dev_done(ublk);
ublk_delete_dev(ublk);
}
return SPDK_POLLER_BUSY;
@ -1131,14 +1138,17 @@ ublk_dev_queue_init(struct ublk_queue *q)
if (rc < 0) {
SPDK_ERRLOG("Failed at setup uring: %s\n", spdk_strerror(-rc));
munmap(q->io_cmd_buf, ublk_queue_cmd_buf_sz(q->q_depth));
q->io_cmd_buf = NULL;
goto err;
}
rc = io_uring_register_files(&q->ring, &ublk->cdev_fd, 1);
if (rc != 0) {
SPDK_ERRLOG("Failed at uring register files: %s\n", spdk_strerror(-rc));
close(q->ring.ring_fd);
io_uring_queue_exit(&q->ring);
q->ring.ring_fd = -1;
munmap(q->io_cmd_buf, ublk_queue_cmd_buf_sz(q->q_depth));
q->io_cmd_buf = NULL;
goto err;
}
@ -1152,10 +1162,15 @@ err:
static void
ublk_dev_queue_fini(struct ublk_queue *q)
{
if (q->ring.ring_fd >= 0) {
io_uring_unregister_files(&q->ring);
close(q->ring.ring_fd);
io_uring_queue_exit(&q->ring);
q->ring.ring_fd = -1;
}
if (q->io_cmd_buf) {
munmap(q->io_cmd_buf, ublk_queue_cmd_buf_sz(q->q_depth));
}
}
static void
ublk_dev_queue_io_init(struct ublk_queue *q)
@ -1181,7 +1196,7 @@ ublk_set_params(struct spdk_ublk_dev *ublk)
rc = ublk_ctrl_cmd(ublk, UBLK_CMD_SET_PARAMS);
if (rc < 0) {
SPDK_ERRLOG("UBLK can't set params for dev %d, rc %s\n", ublk->ublk_id, spdk_strerror(-rc));
_ublk_try_close_dev(ublk);
ublk_delete_dev(ublk);
}
}
@ -1329,6 +1344,7 @@ ublk_start_disk(const char *bdev_name, uint32_t ublk_id,
uint32_t num_queues, uint32_t queue_depth)
{
int rc;
uint32_t i;
struct spdk_bdev *bdev;
struct spdk_ublk_dev *ublk = NULL;
@ -1375,6 +1391,9 @@ ublk_start_disk(const char *bdev_name, uint32_t ublk_id,
ublk->num_queues, ublk->ublk_id, UBLK_DEV_MAX_QUEUES);
ublk->num_queues = UBLK_DEV_MAX_QUEUES;
}
for (i = 0; i < ublk->num_queues; i++) {
ublk->queues[i].ring.ring_fd = -1;
}
/* Add ublk_dev to the end of disk list */
rc = ublk_dev_list_register(ublk);
@ -1387,7 +1406,7 @@ ublk_start_disk(const char *bdev_name, uint32_t ublk_id,
ublk_info_param_init(ublk);
rc = ublk_ios_init(ublk);
if (rc != 0) {
ublk_delete_dev(ublk);
ublk_free_dev(ublk);
return rc;
}
@ -1396,7 +1415,7 @@ ublk_start_disk(const char *bdev_name, uint32_t ublk_id,
rc = ublk_ctrl_cmd(ublk, UBLK_CMD_ADD_DEV);
if (rc < 0) {
SPDK_ERRLOG("UBLK can't add dev %d, rc %s\n", ublk->ublk_id, spdk_strerror(-rc));
ublk_delete_dev(ublk);
ublk_free_dev(ublk);
}
return rc;
@ -1406,7 +1425,7 @@ static void
ublk_finish_start(struct spdk_ublk_dev *ublk)
{
int rc;
uint32_t q_id, i;
uint32_t q_id;
struct spdk_thread *ublk_thread;
char buf[64];
@ -1421,9 +1440,6 @@ ublk_finish_start(struct spdk_ublk_dev *ublk)
for (q_id = 0; q_id < ublk->num_queues; q_id++) {
rc = ublk_dev_queue_init(&ublk->queues[q_id]);
if (rc) {
for (i = 0; i < q_id; i++) {
ublk_dev_queue_fini(&ublk->queues[i]);
}
goto err;
}
}
@ -1449,7 +1465,7 @@ ublk_finish_start(struct spdk_ublk_dev *ublk)
return;
err:
_ublk_try_close_dev(ublk);
ublk_delete_dev(ublk);
}
SPDK_LOG_REGISTER_COMPONENT(ublk)