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Fix lvresize for thin pool

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When resizing thin pool - we need to use strip info from  _tdata volume.
In future more generic solution will be necessary once we start to support
lvconvert (resize of stacked devices and stay properly aligned).
For now we just allow striped or linear LV so this code will work.
This commit is contained in:
Zdenek Kabelac 2012-04-11 12:40:03 +00:00
parent b51d131c59
commit 4c4094c33c
2 changed files with 5 additions and 8 deletions
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1
WHATS_NEW
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@ -1,5 +1,6 @@
Version 2.02.96 -
================================
Fix lvresize of thin pool for stipped devices.
For lvresize round upward when specifying number of extents.
For lvcreate with %FREE support rounding downward strip alignment.
Change message severity to log_very_verbose for missing dev info in udev db.

12
tools/lvresize.c
View File

@ -590,7 +590,10 @@ static int _lvresize(struct cmd_context *cmd, struct volume_group *vg,
if ((lp->extents > lv->le_count) &&
!(lp->stripes == 1 || (lp->stripes > 1 && lp->stripe_size))) {
/* FIXME Don't assume mirror seg will always be AREA_LV */
dm_list_iterate_items(seg, seg_mirrors ? &seg_lv(mirr_seg, 0)->segments : &lv->segments) {
/* FIXME We will need to support resize for metadata LV as well,
* and data LV could be any type (i.e. mirror)) */
dm_list_iterate_items(seg, seg_mirrors ? &seg_lv(mirr_seg, 0)->segments :
lv_is_thin_pool(lv) ? &seg_lv(first_seg(lv), 0)->segments : &lv->segments) {
if (!seg_is_striped(seg))
continue;
@ -739,13 +742,6 @@ static int _lvresize(struct cmd_context *cmd, struct volume_group *vg,
log_warn("Thin pool volumes do not have filesystem.");
lp->resizefs = 0;
}
if (!lp->stripes) {
/* Try to use the same strip settings for underlying pool data LV */
lp->stripes = last_seg(seg_lv(first_seg(lv), 0))->area_count;
if (!lp->stripe_size)
lp->stripe_size = last_seg(seg_lv(first_seg(lv), 0))->stripe_size;
}
}
if ((lp->resize == LV_REDUCE) && lp->argc)