master - cleanup: use lv_is_used_cache_pool

[Zdenek Kabelac]

Gitweb:        https://sourceware.org/git/?p=lvm2.git;a=commitdiff;h=16c209c613b35307105e7d...
Commit:        16c209c613b35307105e7d022a95f58f897243aa
Parent:        e643de6e61e9329c84286941511242f0f0d2e71b
Author:        Zdenek Kabelac 
AuthorDate:    Wed Feb 28 17:38:43 2018 +0100
Committer:     Zdenek Kabelac 
CommitterDate: Wed Feb 28 21:15:55 2018 +0100

cleanup: use lv_is_used_cache_pool

Use lv_is_used_cache_pool() to simplify the code.
Function was introduced later and this code missed to use it.
---
 lib/metadata/lv_manip.c |   16 +++++++---------
 1 files changed, 7 insertions(+), 9 deletions(-)

diff --git a/lib/metadata/lv_manip.c b/lib/metadata/lv_manip.c
index 28f00ab..1e2cfc6 100644
--- a/lib/metadata/lv_manip.c
+++ b/lib/metadata/lv_manip.c
@@ -6084,7 +6084,7 @@ int lv_remove_single(struct cmd_context *cmd, struct logical_volume *lv,
    }

/* Used cache pool, COW or historical LV cannot be activated */
-	if ((!lv_is_cache_pool(lv) || dm_list_empty(&lv->segs_using_this_lv)) &&
+	if (!lv_is_used_cache_pool(lv) &&
        !lv_is_cow(lv) && !lv_is_historical(lv) &&
        !deactivate_lv(cmd, lv)) {
    	/* FIXME Review and fix the snapshot error paths! */
@@ -6134,16 +6134,14 @@ int lv_remove_single(struct cmd_context *cmd, struct logical_volume *lv,
    	}
    }

-	if (lv_is_cache_pool(lv)) {
+	if (lv_is_used_cache_pool(lv)) {
    	/* Cache pool removal drops cache layer
    	 * If the cache pool is not linked, we can simply remove it. */
-		if (!dm_list_empty(&lv->segs_using_this_lv)) {
-			if (!(cache_seg = get_only_segment_using_this_lv(lv)))
-				return_0;
-			/* TODO: polling */
-			if (!lv_cache_remove(cache_seg->lv))
-				return_0;
-		}
+		if (!(cache_seg = get_only_segment_using_this_lv(lv)))
+			return_0;
+		/* TODO: polling */
+		if (!lv_cache_remove(cache_seg->lv))
+			return_0;
    }

visible = lv_is_visible(lv);