Version 2.02.89 -
==================================
+ Introduce lv_send_message and dev_manager_send_message.
Introduce revert_lv for better pvmove cleanup.
Replace incomplete pvmove activation failure recovery code with a message.
Abort if _finish_pvmove suspend_lvs fails instead of cleaning up incompletely.
{
return 1;
}
+int lv_send_message(const struct logical_volume *lv, const char *message)
+{
+ return 0;
+}
int pv_uses_vg(struct physical_volume *pv,
struct volume_group *vg)
{
return r;
}
+#if 0
+// FIXME: Remove this - example of supported messages thin pool
+"create_thin %u", dev_id
+"create_snap %u", dev_id
+"delete %u", dev_id
+"trim %u %" PRIu64, dev_id, new_size_sec
+"set_transaction_id %" PRIu64 " %" PRIu64, cur_id, new_id
+#endif
+
+int lv_send_message(const struct logical_volume *lv, const char *msg_format, ...)
+{
+ va_list ap;
+ struct dev_manager *dm;
+ const size_t buf_size = 128;
+ char *buf = NULL;
+ int r = 0, pr;
+
+ if (!activation())
+ return 0;
+
+ if (!(dm = dev_manager_create(lv->vg->cmd, lv->vg->name, 1)))
+ return_0;
+
+ if (!(buf = dm_malloc(buf_size))) {
+ log_error("Failed to allocate message buffer.");
+ goto out;
+ }
+
+ va_start(ap, msg_format);
+ pr = vsnprintf(buf, buf_size, msg_format, ap);
+ va_end(ap);
+
+ if (pr < 0 || pr >= buf_size) {
+ log_error("Failed to create message in reserved buffer size "
+ "%" PRIsize_t, buf_size);
+ goto out;
+ }
+
+ log_debug("Sending message '%s' to LV %s/%s", buf, lv->vg->name, lv->name);
+
+ if (!(r = dev_manager_send_message(dm, lv, buf)))
+ stack;
+out:
+ dm_free(buf);
+ dev_manager_destroy(dm);
+
+ return r;
+}
+
/*
* Does PV use VG somewhere in its construction?
* Returns 1 on failure.
int lv_deactivate(struct cmd_context *cmd, const char *lvid_s);
int lv_mknodes(struct cmd_context *cmd, const struct logical_volume *lv);
+__attribute__ ((format(printf, 2, 3)))
+int lv_send_message(const struct logical_volume *lv, const char *msg_format, ...);
/*
* Returns 1 if info structure has been populated, else 0.
return r;
}
+/*
+ * Send message
+ */
+int dev_manager_send_message(struct dev_manager *dm, const struct logical_volume *lv, const char *message)
+{
+ const char *name;
+ struct dm_task *dmt;
+ int r = 0;
+
+ if (!(name = dm_build_dm_name(dm->mem, lv->vg->name, lv->name, NULL)))
+ return_0;
+
+ if (!(dmt = _setup_task(name, NULL, NULL, DM_DEVICE_TARGET_MSG, 0, 0)))
+ return_0;
+
+ if (!dm_task_set_message(dmt, message))
+ goto_out;
+
+ if (!dm_task_run(dmt))
+ goto_out;
+
+ r = 1;
+out:
+ dm_task_destroy(dmt);
+
+ return r;
+}
+
static uint16_t _get_udev_flags(struct dev_manager *dm, struct logical_volume *lv,
const char *layer)
{
int dev_manager_transient(struct dev_manager *dm, struct logical_volume *lv) __attribute__((nonnull(1, 2)));
int dev_manager_mknodes(const struct logical_volume *lv);
+int dev_manager_send_message(struct dev_manager *dm, const struct logical_volume *lv, const char *message);
/*
* Put the desired changes into effect.