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devices: update dm uuid cache naming

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replace "dm uuid" with "dm devs" in case it begins
caching more than dm uuids.
This commit is contained in:
David Teigland 2024-07-01 10:50:53 -05:00
parent 5f26c05bf2
commit 5551e4a1e9
5 changed files with 20 additions and 20 deletions
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12
lib/activate/dev_manager.c
View File

@ -766,7 +766,7 @@ int dm_device_is_usable(struct cmd_context *cmd, struct device *dev, struct dev_
int only_error_or_zero_target = 1;
int r = 0;
if (dev_cache_use_dm_uuid_cache() &&
if (dev_cache_use_dm_devs_cache() &&
/* With cache we can avoid status calls for unusable UUIDs */
(dm_dev = dev_cache_get_dm_dev_by_devno(cmd, dev->dev)) &&
!_is_usable_uuid(dev, dm_dev->name, dm_dev->uuid, check.check_reserved, check.check_lv, is_lv))
@ -897,7 +897,7 @@ int devno_dm_uuid(struct cmd_context *cmd, int major, int minor,
const char *uuid;
int r = 0;
if (dev_cache_use_dm_uuid_cache()) {
if (dev_cache_use_dm_devs_cache()) {
if ((dm_dev = dev_cache_get_dm_dev_by_devno(cmd, MKDEV(major, minor)))) {
dm_strncpy(uuid_buf, dm_dev->uuid, uuid_buf_size);
return 1;
@ -1085,7 +1085,7 @@ int dev_manager_info(struct cmd_context *cmd,
dm_strncpy(old_style_dlid, dlid, sizeof(old_style_dlid));
if (dev_cache_use_dm_uuid_cache() &&
if (dev_cache_use_dm_devs_cache() &&
!dev_cache_get_dm_dev_by_uuid(cmd, dlid) &&
!dev_cache_get_dm_dev_by_uuid(cmd, old_style_dlid)) {
log_debug("Cached as inactive %s.", name);
@ -2459,7 +2459,7 @@ static int _add_dev_to_dtree(struct dev_manager *dm, struct dm_tree *dtree,
if (!(dlid = build_dm_uuid(dm->track_pending_delete ? dm->cmd->pending_delete_mem : dm->mem, lv, layer)))
return_0;
if (dev_cache_use_dm_uuid_cache()) {
if (dev_cache_use_dm_devs_cache()) {
if (!(dm_dev = dev_cache_get_dm_dev_by_uuid(dm->cmd, dlid))) {
log_debug("Cached as not present %s.", name);
return 1;
@ -2614,7 +2614,7 @@ static int _pool_callback(struct dm_tree_node *node,
}
}
dev_cache_destroy_dm_uuids();
dev_cache_destroy_dm_devs();
log_debug("Running check command on %s", mpath);
@ -3998,7 +3998,7 @@ static int _tree_action(struct dev_manager *dm, const struct logical_volume *lv,
/* Drop any cache before DM table manipulation within locked section
* TODO: check if it makes sense to manage cache within lock */
dev_cache_destroy_dm_uuids();
dev_cache_destroy_dm_devs();
dtree = _create_partial_dtree(dm, lv, laopts->origin_only);

18
lib/device/dev-cache.c
View File

@ -59,7 +59,7 @@ static struct {
struct radix_tree *devices;
struct dm_regex *preferred_names_matcher;
const char *dev_dir;
int use_dm_uuid_cache;
int use_dm_devs_cache;
size_t dev_dir_len;
int has_scanned;
@ -1327,14 +1327,14 @@ out:
return r;
}
int dev_cache_use_dm_uuid_cache(void)
int dev_cache_use_dm_devs_cache(void)
{
return _cache.use_dm_uuid_cache;
return _cache.use_dm_devs_cache;
}
void dev_cache_destroy_dm_uuids(void)
void dev_cache_destroy_dm_devs(void)
{
_cache.use_dm_uuid_cache = 0;
_cache.use_dm_devs_cache = 0;
if (_cache.dm_devnos) {
radix_tree_destroy(_cache.dm_devnos);
@ -1349,13 +1349,13 @@ void dev_cache_destroy_dm_uuids(void)
dm_device_list_destroy(&_cache.dm_devs);
}
int dev_cache_update_dm_uuids(void)
int dev_cache_update_dm_devs(void)
{
struct dm_active_device *dm_dev;
unsigned devs_features;
uint32_t d;
dev_cache_destroy_dm_uuids();
dev_cache_destroy_dm_devs();
if (!get_dm_active_devices(NULL, &_cache.dm_devs, &devs_features))
return 1;
@ -1391,7 +1391,7 @@ int dev_cache_update_dm_uuids(void)
//radix_tree_dump(_cache.dm_devnos, stdout);
//radix_tree_dump(_cache.dm_uuids, stdout);
_cache.use_dm_uuid_cache = 1;
_cache.use_dm_devs_cache = 1;
return 1;
}
@ -1523,7 +1523,7 @@ int dev_cache_exit(void)
vt.num_open);
}
dev_cache_destroy_dm_uuids();
dev_cache_destroy_dm_devs();
if (_cache.mem)
dm_pool_destroy(_cache.mem);

6
lib/device/dev-cache.h
View File

@ -37,9 +37,9 @@ struct dev_filter {
struct dm_list *dev_cache_get_dev_list_for_vgid(const char *vgid);
struct dm_list *dev_cache_get_dev_list_for_lvid(const char *lvid);
int dev_cache_use_dm_uuid_cache(void);
int dev_cache_update_dm_uuids(void);
void dev_cache_destroy_dm_uuids(void);
int dev_cache_use_dm_devs_cache(void);
int dev_cache_update_dm_devs(void);
void dev_cache_destroy_dm_devs(void);
const struct dm_active_device *
dev_cache_get_dm_dev_by_devno(struct cmd_context *cmd, dev_t devno);
const struct dm_active_device *

2
lib/label/label.c
View File

@ -1263,7 +1263,7 @@ int label_scan(struct cmd_context *cmd)
* here, before processing the hints file, so that the dm uuid checks
* in hint processing can benefit from the dm uuid cache.)
*/
if (!dev_cache_update_dm_uuids())
if (!dev_cache_update_dm_devs())
return_0;
/*

2
lib/locking/locking.c
View File

@ -330,7 +330,7 @@ int vg_write_lock_held(void)
int sync_local_dev_names(struct cmd_context* cmd)
{
dev_cache_destroy_dm_uuids();
dev_cache_destroy_dm_devs();
memlock_unlock(cmd);
fs_unlock();
return 1;