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cache: reorganize cache_set_policy

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to prepare for future addition
This commit is contained in:
David Teigland 2018-11-05 16:14:45 -06:00
parent 23948e99b3
commit a686391eca
1 changed files with 14 additions and 7 deletions
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21
lib/metadata/cache_manip.c
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@ -748,23 +748,30 @@ static cache_metadata_format_t _get_default_cache_metadata_format(struct cmd_con
return f;
}
int cache_set_policy(struct lv_segment *seg, const char *name,
int cache_set_policy(struct lv_segment *lvseg, const char *name,
const struct dm_config_tree *settings)
{
struct lv_segment *seg;
struct dm_config_node *cn;
const struct dm_config_node *cns;
struct dm_config_tree *old = NULL, *new = NULL, *tmp = NULL;
int r = 0;
struct profile *profile = seg->lv->profile;
struct profile *profile = lvseg->lv->profile;
if (seg_is_cache(seg))
seg = first_seg(seg->pool_lv);
else if (seg_is_cache_pool(seg)) {
if (seg_is_cache_pool(lvseg)) {
if (!name && !settings)
return 1; /* Policy and settings can be selected later when caching LV */
} else {
}
if (seg_is_cache_pool(lvseg))
seg = lvseg;
else if (seg_is_cache(lvseg))
seg = first_seg(lvseg->pool_lv);
else {
log_error(INTERNAL_ERROR "Cannot set cache metadata format for non cache volume %s.",
display_lvname(seg->lv));
display_lvname(lvseg->lv));
return 0;
}