main - devices: initial use of existing option

[David Teigland <teigland@sourceware.org>]

Gitweb:        https://sourceware.org/git/?p=lvm2.git;a=commitdiff;h=00c3069872ab488f66f14c8c2727bd080affc05e
Commit:        00c3069872ab488f66f14c8c2727bd080affc05e
Parent:        7e70041e324e1a4d49134a93323072e1b6ec661f
Author:        David Teigland <teigland@redhat.com>
AuthorDate:    Thu Feb 24 16:10:37 2022 -0600
Committer:     David Teigland <teigland@redhat.com>
CommitterDate: Thu Feb 24 17:22:03 2022 -0600

devices: initial use of existing option

Use dev_cache_get_existing() in a few common, high level
locations where it's obvious that only existing dev-cache
entries are wanted.  This can be expanded and used in more
locations (or dev_cache_get can stop creating new entries.)
---
 lib/device/device_id.c | 4 ++--
 tools/toollib.c        | 6 +++---
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/lib/device/device_id.c b/lib/device/device_id.c
index 003f10a96..c8df47345 100644
--- a/lib/device/device_id.c
+++ b/lib/device/device_id.c
@@ -1577,7 +1577,7 @@ void device_ids_match_device_list(struct cmd_context *cmd)
 	dm_list_iterate_items(du, &cmd->use_devices) {
 		if (du->dev)
 			continue;
-		if (!(du->dev = dev_cache_get(cmd, du->devname, NULL))) {
+		if (!(du->dev = dev_cache_get_existing(cmd, du->devname, NULL))) {
 			log_warn("Device not found for %s.", du->devname);
 		} else {
 			/* Should we set dev->id?  Which idtype?  Use --deviceidtype? */
@@ -1625,7 +1625,7 @@ void device_ids_match(struct cmd_context *cmd)
 		 * the du/dev pairs in preparation for using the filters.
 		 */
 		if (du->devname &&
-		    (dev = dev_cache_get(cmd, du->devname, NULL))) {
+		    (dev = dev_cache_get_existing(cmd, du->devname, NULL))) {
 			/* On successful match, du, dev, and id are linked. */
 			if (_match_du_to_dev(cmd, du, dev))
 				continue;
diff --git a/tools/toollib.c b/tools/toollib.c
index b08c044fa..897adec34 100644
--- a/tools/toollib.c
+++ b/tools/toollib.c
@@ -1488,7 +1488,7 @@ int process_each_label(struct cmd_context *cmd, int argc, char **argv,
 				goto out;
 			}
 
-			if (!(dev = dev_cache_get(cmd, argv[opt], cmd->filter))) {
+			if (!(dev = dev_cache_get_existing(cmd, argv[opt], cmd->filter))) {
 				log_error("Failed to find device "
 					  "\"%s\".", argv[opt]);
 				ret_max = ECMD_FAILED;
@@ -3925,7 +3925,7 @@ static int _get_arg_devices(struct cmd_context *cmd,
 			return ECMD_FAILED;
 		}
 
-		if (!(dil->dev = dev_cache_get(cmd, sl->str, cmd->filter))) {
+		if (!(dil->dev = dev_cache_get_existing(cmd, sl->str, cmd->filter))) {
 			log_error("Cannot use %s: %s", sl->str, devname_error_reason(sl->str));
 			ret_max = EINIT_FAILED;
 		} else {
@@ -5261,7 +5261,7 @@ int pvcreate_each_device(struct cmd_context *cmd,
 		struct device *dev;
 
 		/* No filter used here */
-		if (!(dev = dev_cache_get(cmd, pd->name, NULL))) {
+		if (!(dev = dev_cache_get_existing(cmd, pd->name, NULL))) {
 			log_error("No device found for %s.", pd->name);
 			dm_list_del(&pd->list);
 			dm_list_add(&pp->arg_fail, &pd->list);