On 08/23/2017 01:20 PM, Marc-André Lureau wrote:
> - PLOG is unused
> - code is compiled out unless debug is enabled
> - logging is too verbose
> - you can pipe to ts to have timestamp if needed, or use structured
> logging with more recent glib
>
> Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
> ---
> contrib/vhost-user-scsi/vhost-user-scsi.c | 77 +++++++++----------------------
> 1 file changed, 21 insertions(+), 56 deletions(-)
>
> diff --git a/contrib/vhost-user-scsi/vhost-user-scsi.c b/contrib/vhost-user-scsi/vhost-user-scsi.c
> index 516a9d3966..e3ec8b9b2c 100644
> --- a/contrib/vhost-user-scsi/vhost-user-scsi.c
> +++ b/contrib/vhost-user-scsi/vhost-user-scsi.c
> @@ -18,42 +18,6 @@
>
> #include <glib.h>
>
> -/* #define VUS_DEBUG 1 */
> -
> -/** Log helpers **/
> -
> -#define PPRE \
> - struct timespec ts; \
> - char timebuf[64]; \
> - struct tm tm; \
> - (void)clock_gettime(CLOCK_REALTIME, &ts); \
> - (void)strftime(timebuf, 64, "%Y%m%d %T", gmtime_r(&ts.tv_sec, &tm))
> -
> -#define PEXT(lvl, msg, ...) do { \
> - PPRE; \
> - fprintf(stderr, "%s.%06ld " lvl ": %s:%s():%d: " msg "\n", \
> - timebuf, ts.tv_nsec / 1000, \
> - __FILE__, __func__, __LINE__, ## __VA_ARGS__); \
> -} while (0)
> -
> -#define PNOR(lvl, msg, ...) do { \
> - PPRE; \
> - fprintf(stderr, "%s.%06ld " lvl ": " msg "\n", \
> - timebuf, ts.tv_nsec / 1000, ## __VA_ARGS__); \
> -} while (0)
> -
> -#ifdef VUS_DEBUG
> -#define PDBG(msg, ...) PEXT("DBG", msg, ## __VA_ARGS__)
> -#define PERR(msg, ...) PEXT("ERR", msg, ## __VA_ARGS__)
> -#define PLOG(msg, ...) PEXT("LOG", msg, ## __VA_ARGS__)
> -#else
> -#define PDBG(msg, ...) { }
> -#define PERR(msg, ...) PNOR("ERR", msg, ## __VA_ARGS__)
> -#define PLOG(msg, ...) PNOR("LOG", msg, ## __VA_ARGS__)
> -#endif
> -
> -/** vhost-user-scsi specific definitions **/
> -
> #define VUS_ISCSI_INITIATOR "iqn.2016-11.com.nutanix:vhost-user-scsi"
>
> typedef struct VusIscsiLun {
> @@ -166,27 +130,28 @@ static int vus_iscsi_add_lun(VusIscsiLun *lun, char *iscsi_uri)
>
> iscsi_ctx = iscsi_create_context(VUS_ISCSI_INITIATOR);
> if (!iscsi_ctx) {
> - PERR("Unable to create iSCSI context");
> + g_warning("Unable to create iSCSI context");
> return -1;
> }
>
> iscsi_url = iscsi_parse_full_url(iscsi_ctx, iscsi_uri);
> if (!iscsi_url) {
> - PERR("Unable to parse iSCSI URL: %s", iscsi_get_error(iscsi_ctx));
> + g_warning("Unable to parse iSCSI URL: %s", iscsi_get_error(iscsi_ctx));
> goto fail;
> }
>
> iscsi_set_session_type(iscsi_ctx, ISCSI_SESSION_NORMAL);
> iscsi_set_header_digest(iscsi_ctx, ISCSI_HEADER_DIGEST_NONE_CRC32C);
> if (iscsi_full_connect_sync(iscsi_ctx, iscsi_url->portal, iscsi_url->lun)) {
> - PERR("Unable to login to iSCSI portal: %s", iscsi_get_error(iscsi_ctx));
> + g_warning("Unable to login to iSCSI portal: %s",
> + iscsi_get_error(iscsi_ctx));
> goto fail;
> }
>
> lun->iscsi_ctx = iscsi_ctx;
> lun->iscsi_lun = iscsi_url->lun;
>
> - PDBG("Context %p created for lun 0: %s", iscsi_ctx, iscsi_uri);
> + g_debug("Context %p created for lun 0: %s", iscsi_ctx, iscsi_uri);
>
> out:
> if (iscsi_url) {
> @@ -228,7 +193,7 @@ static int get_cdb_len(uint8_t *cdb)
> case 4: return 16;
> case 5: return 12;
> }
> - PERR("Unable to determine cdb len (0x%02hhX)", cdb[0] >> 5);
> + g_warning("Unable to determine cdb len (0x%02hhX)", cdb[0] >> 5);
> return -1;
> }
>
> @@ -250,7 +215,7 @@ static int handle_cmd_sync(struct iscsi_context *ctx,
>
> if (!(!req->lun[1] && req->lun[2] == 0x40 && !req->lun[3])) {
> /* Ignore anything different than target=0, lun=0 */
> - PDBG("Ignoring unconnected lun (0x%hhX, 0x%hhX)",
> + g_debug("Ignoring unconnected lun (0x%hhX, 0x%hhX)",
> req->lun[1], req->lun[3]);
> rsp->status = SCSI_STATUS_CHECK_CONDITION;
> memset(rsp->sense, 0, sizeof(rsp->sense));
> @@ -293,10 +258,10 @@ static int handle_cmd_sync(struct iscsi_context *ctx,
> task->iovector_in.niov = in_len;
> }
>
> - PDBG("Sending iscsi cmd (cdb_len=%d, dir=%d, task=%p)",
> + g_debug("Sending iscsi cmd (cdb_len=%d, dir=%d, task=%p)",
> cdb_len, dir, task);
> if (!iscsi_scsi_command_sync(ctx, 0, task, NULL)) {
> - PERR("Error serving SCSI command");
> + g_warning("Error serving SCSI command");
> g_free(task);
> return -1;
> }
> @@ -314,7 +279,7 @@ static int handle_cmd_sync(struct iscsi_context *ctx,
>
> g_free(task);
>
> - PDBG("Filled in rsp: status=%hhX, resid=%u, response=%hhX, sense_len=%u",
> + g_debug("Filled in rsp: status=%hhX, resid=%u, response=%hhX, sense_len=%u",
> rsp->status, rsp->resid, rsp->response, rsp->sense_len);
>
> return 0;
> @@ -330,7 +295,7 @@ static void vus_panic_cb(VuDev *vu_dev, const char *buf)
>
> vdev_scsi = container_of(vu_dev, VusDev, vu_dev);
> if (buf) {
> - PERR("vu_panic: %s", buf);
> + g_warning("vu_panic: %s", buf);
> }
>
> g_main_loop_quit(vdev_scsi->loop);
> @@ -371,19 +336,19 @@ static void vus_proc_req(VuDev *vu_dev, int idx)
>
> vdev_scsi = container_of(vu_dev, VusDev, vu_dev);
> if (idx < 0 || idx >= VHOST_MAX_NR_VIRTQUEUE) {
> - PERR("VQ Index out of range: %d", idx);
> + g_warning("VQ Index out of range: %d", idx);
> vus_panic_cb(vu_dev, NULL);
> return;
> }
>
> vq = vu_get_queue(vu_dev, idx);
> if (!vq) {
> - PERR("Error fetching VQ (dev=%p, idx=%d)", vu_dev, idx);
> + g_warning("Error fetching VQ (dev=%p, idx=%d)", vu_dev, idx);
> vus_panic_cb(vu_dev, NULL);
> return;
> }
>
> - PDBG("Got kicked on vq[%d]@%p", idx, vq);
> + g_debug("Got kicked on vq[%d]@%p", idx, vq);
>
> while (1) {
> VuVirtqElement *elem;
> @@ -392,23 +357,23 @@ static void vus_proc_req(VuDev *vu_dev, int idx)
>
> elem = vu_queue_pop(vu_dev, vq, sizeof(VuVirtqElement));
> if (!elem) {
> - PDBG("No more elements pending on vq[%d]@%p", idx, vq);
> + g_debug("No more elements pending on vq[%d]@%p", idx, vq);
> break;
> }
> - PDBG("Popped elem@%p", elem);
> + g_debug("Popped elem@%p", elem);
>
> assert(!(elem->out_num > 1 && elem->in_num > 1));
> assert(elem->out_num > 0 && elem->in_num > 0);
>
> if (elem->out_sg[0].iov_len < sizeof(VirtIOSCSICmdReq)) {
> - PERR("Invalid virtio-scsi req header");
> + g_warning("Invalid virtio-scsi req header");
> vus_panic_cb(vu_dev, NULL);
> break;
> }
> req = (VirtIOSCSICmdReq *)elem->out_sg[0].iov_base;
>
> if (elem->in_sg[0].iov_len < sizeof(VirtIOSCSICmdResp)) {
> - PERR("Invalid virtio-scsi rsp header");
> + g_warning("Invalid virtio-scsi rsp header");
> vus_panic_cb(vu_dev, NULL);
> break;
> }
> @@ -435,7 +400,7 @@ static void vus_queue_set_started(VuDev *vu_dev, int idx, bool started)
> assert(vu_dev);
>
> if (idx < 0 || idx >= VHOST_MAX_NR_VIRTQUEUE) {
> - PERR("VQ Index out of range: %d", idx);
> + g_warning("VQ Index out of range: %d", idx);
> vus_panic_cb(vu_dev, NULL);
> return;
> }
> @@ -443,7 +408,7 @@ static void vus_queue_set_started(VuDev *vu_dev, int idx, bool started)
> vq = vu_get_queue(vu_dev, idx);
>
> if (idx == 0 || idx == 1) {
> - PDBG("queue %d unimplemented", idx);
> + g_debug("queue %d unimplemented", idx);
> } else {
> vu_set_queue_handler(vu_dev, vq, started ? vus_proc_req : NULL);
> }
> @@ -461,7 +426,7 @@ static gboolean vus_vhost_cb(GIOChannel *source, GIOCondition condition,
> assert(vu_dev);
>
> if (!vu_dispatch(vu_dev) != 0) {
> - PERR("Error processing vhost message");
> + g_warning("Error processing vhost message");
> vus_panic_cb(vu_dev, NULL);
> return G_SOURCE_REMOVE;
> }
>