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dmeventd_thind: set LVM_RUN_BY_DMEVENTD

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Set LVM_RUN_BY_DMEVENTD envvar to expose the command is runing from
dmeventd environment.
This commit is contained in:
Zdenek Kabelac 2017-01-23 14:23:24 +01:00
parent 4a7f2155c1
commit 836eb122ce
1 changed files with 9 additions and 5 deletions
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14
daemons/dmeventd/plugins/thin/dmeventd_thin.c
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@ -69,19 +69,23 @@ DM_EVENT_LOG_FN("thin")
static int _run_command(struct dso_state *state) static int _run_command(struct dso_state *state)
{ {
char val[2][36]; char val[3][36];
char *env[] = { val[0], val[1], NULL }; char *env[] = { val[0], val[1], val[2], NULL };
int i; int i;
/* Mark for possible lvm2 command we are running from dmeventd
* lvm2 will not try to talk back to dmeventd while processing it */
(void) dm_snprintf(val[0], sizeof(val[0]), "LVM_RUN_BY_DMEVENTD=1");
if (state->data_percent) { if (state->data_percent) {
/* Prepare some known data to env vars for easy use */ /* Prepare some known data to env vars for easy use */
(void) dm_snprintf(val[0], sizeof(val[0]), "DMEVENTD_THIN_POOL_DATA=%d", (void) dm_snprintf(val[1], sizeof(val[1]), "DMEVENTD_THIN_POOL_DATA=%d",
state->data_percent / DM_PERCENT_1); state->data_percent / DM_PERCENT_1);
(void) dm_snprintf(val[1], sizeof(val[1]), "DMEVENTD_THIN_POOL_METADATA=%d", (void) dm_snprintf(val[2], sizeof(val[2]), "DMEVENTD_THIN_POOL_METADATA=%d",
state->metadata_percent / DM_PERCENT_1); state->metadata_percent / DM_PERCENT_1);
} else { } else {
/* For an error event it's for a user to check status and decide */ /* For an error event it's for a user to check status and decide */
env[0] = NULL; env[1] = NULL;
log_debug("Error event processing"); log_debug("Error event processing");
} }