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writecache: fix lv_on_pmem

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dev_is_pmem on pv->dev requires a pv segment or it could segfault.

(cherry picked from commit 247f69f9aafe731ef85268da1e6ce817295b265d)
This commit is contained in:
David Teigland 2021-06-02 10:51:12 -05:00 committed by Marian Csontos
parent 5d195b2041
commit 4d5f3207fd
1 changed files with 3 additions and 0 deletions
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3
lib/metadata/metadata.c
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@ -4402,6 +4402,9 @@ int lv_on_pmem(struct logical_volume *lv)
dm_list_iterate_items(seg, &lv->segments) {
for (s = 0; s < seg->area_count; s++) {
if (seg_type(seg, s) != AREA_PV)
continue;
pv = seg_pv(seg, s);
if (dev_is_pmem(lv->vg->cmd->dev_types, pv->dev)) {