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lvextend: enable resize of writecached LV

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This commit is contained in:
Zdenek Kabelac 2021-02-20 22:22:51 +01:00
parent e43b5f1e3c
commit ac09fa08aa
1 changed files with 9 additions and 7 deletions
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16
lib/metadata/lv_manip.c
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@ -1465,7 +1465,8 @@ static struct logical_volume *_get_resizable_layer_lv(struct logical_volume *lv)
while (lv_is_cache(lv) || /* _corig */
lv_is_integrity(lv) ||
lv_is_thin_pool(lv) || /* _tdata */
lv_is_vdo_pool(lv)) /* _vdata */
lv_is_vdo_pool(lv) || /* _vdata */
lv_is_writecache(lv)) /* _worigin */
lv = seg_lv(first_seg(lv), 0); /* component-level down */
return lv;
@ -1479,7 +1480,8 @@ static int _is_layered_lv(struct logical_volume *lv)
return (lv_is_cache_origin(lv) ||
lv_is_integrity_origin(lv) ||
lv_is_thin_pool_data(lv) ||
lv_is_vdo_pool_data(lv));
lv_is_vdo_pool_data(lv) ||
lv_is_writecache_origin(lv));
}
/* Find the topmost LV in the stack - usually such LV is visible. */
@ -5173,11 +5175,6 @@ static int _lvresize_check(struct logical_volume *lv,
struct volume_group *vg = lv->vg;
struct lv_segment *seg = first_seg(lv);
if (lv_is_writecache(lv)) {
log_error("Resize not yet allowed on LVs with writecache attached.");
return 0;
}
if (lv_is_external_origin(lv)) {
/*
* Since external-origin can be activated read-only,
@ -5803,6 +5800,11 @@ static int _lvresize_check_type(const struct logical_volume *lv,
display_lvname(lv));
return 0;
}
if (lv_is_writecache(lv)) {
/* TODO: detect kernel with support for reduction */
log_error("Reduce not yet allowed on LVs with writecache attached.");
return 0;
}
} else if (lp->resize == LV_EXTEND) {
if (lv_is_thin_pool_metadata(lv) &&
(!(seg = find_pool_seg(first_seg(lv))) ||