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thin: drop limitation for extension of reduced thin volume

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Drop check which has prevented resize of reduce thin volume with
external origin. User is supposed to use 'zeroing' to get 'clean'
chunks.
This commit is contained in:
Zdenek Kabelac 2015-06-18 14:38:05 +02:00
parent 69132f55ea
commit 6f2a617c31
2 changed files with 1 additions and 10 deletions
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1
WHATS_NEW
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@ -1,5 +1,6 @@
Version 2.02.122 -
=================================
Allow to extend reduced thin volumes with external origins.
Consider snapshot and origin LV as unusable if its component is suspended.
Fix lvmconfig segfault on settings with undefined default value (2.02.120).

10
lib/metadata/lv_manip.c
View File

@ -5084,16 +5084,6 @@ static int _lvresize_check_type(struct cmd_context *cmd, const struct logical_vo
if (lv_is_thin_volume(lv) && first_seg(lv)->external_lv &&
(lp->resize == LV_EXTEND)) {
/*
* TODO: currently we do not support extension of already reduced thin volume.
* But it might be possible to create combined mapping of some part of
* the external origin followed by zero target.
*/
if (first_seg(lv)->external_lv->size > lv->size) {
log_error("Extension of reduced thin volume with external origin is unsupported.");
return 0;
}
/* Validate thin target supports bigger size of thin volume then external origin */
if (first_seg(lv)->external_lv->size <= lv->size &&
!thin_pool_feature_supported(first_seg(lv)->pool_lv, THIN_FEATURE_EXTERNAL_ORIGIN_EXTEND)) {