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vgcreate: improve error message for multiple lock managers

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If 'vgcreate --shared' finds both sanlock and dlm are running,
print a more accurate error message:
"Found multiple lock managers, select one with --lock-type."

When neither is running, we still print:
"Failed to detect a running lock manager to select lock type."
This commit is contained in:
David Teigland 2015-10-08 10:38:35 -05:00
parent 09981afc1c
commit d99dd4086d
3 changed files with 11 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
lib/locking/lvmlockd.c
View File

@ -2561,7 +2561,7 @@ int lockd_rename_vg_final(struct cmd_context *cmd, struct volume_group *vg, int
return 1;
}
const char *lockd_running_lock_type(struct cmd_context *cmd)
const char *lockd_running_lock_type(struct cmd_context *cmd, int *found_multiple)
{
daemon_reply reply;
const char *lock_type = NULL;
@ -2583,10 +2583,9 @@ const char *lockd_running_lock_type(struct cmd_context *cmd)
switch (result) {
case -EXFULL:
log_error("lvmlockd found multiple lock managers, use --lock-type to select one.");
*found_multiple = 1;
break;
case -ENOLCK:
log_error("lvmlockd found no lock manager running.");
break;
case LOCK_TYPE_SANLOCK:
log_debug("lvmlockd found sanlock");

4
lib/locking/lvmlockd.h
View File

@ -89,7 +89,7 @@ int lockd_init_lv_args(struct cmd_context *cmd, struct volume_group *vg,
int lockd_free_lv(struct cmd_context *cmd, struct volume_group *vg,
const char *lv_name, struct id *lv_id, const char *lock_args);
const char *lockd_running_lock_type(struct cmd_context *cmd);
const char *lockd_running_lock_type(struct cmd_context *cmd, int *found_multiple);
int handle_sanlock_lv(struct cmd_context *cmd, struct volume_group *vg);
@ -223,7 +223,7 @@ static inline int lockd_free_lv(struct cmd_context *cmd, struct volume_group *vg
return 1;
}
static inline const char *lockd_running_lock_type(struct cmd_context *cmd)
static inline const char *lockd_running_lock_type(struct cmd_context *cmd, int *found_multiple)
{
log_error("Using a shared lock type requires lvmlockd.");
return NULL;

9
tools/toollib.c
View File

@ -931,9 +931,14 @@ int vgcreate_params_set_from_args(struct cmd_context *cmd,
}
} else if (arg_is_set(cmd, shared_ARG)) {
int found_multiple = 0;
if (use_lvmlockd) {
if (!(lock_type = lockd_running_lock_type(cmd))) {
log_error("Failed to detect a running lock manager to select lock type.");
if (!(lock_type = lockd_running_lock_type(cmd, &found_multiple))) {
if (found_multiple)
log_error("Found multiple lock managers, select one with --lock-type.");
else
log_error("Failed to detect a running lock manager to select lock type.");
return 0;
}