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Lvresize rounds upward

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When given lvresize new size - round upward for stripes - unless we use % and
we are at the border of free extents.

This patch is not a complete fix and few more cases will need special care.
This commit is contained in:
Zdenek Kabelac 2012-04-11 12:36:37 +00:00
parent c6f3701a71
commit 6fc1f948c2
2 changed files with 6 additions and 2 deletions
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1
WHATS_NEW
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@ -1,5 +1,6 @@
Version 2.02.96 - Version 2.02.96 -
================================ ================================
For lvresize round upward when specifying number of extents.
For lvcreate with %FREE support rounding downward strip alignment. For lvcreate with %FREE support rounding downward strip alignment.
Change message severity to log_very_verbose for missing dev info in udev db. Change message severity to log_very_verbose for missing dev info in udev db.
Fix problems when specifying PVs during RAID down-converts. Fix problems when specifying PVs during RAID down-converts.

7
tools/lvresize.c
View File

@ -676,7 +676,11 @@ static int _lvresize(struct cmd_context *cmd, struct volume_group *vg,
size_rest = seg_size % (lp->stripes * stripesize_extents); size_rest = seg_size % (lp->stripes * stripesize_extents);
/* Round toward the original size. */ /* Round toward the original size. */
if (size_rest && lp->extents < lv->le_count) { if (size_rest &&
((lp->extents < lv->le_count) ||
!lp->percent ||
(vg->free_count >= (lp->extents - lv->le_count - size_rest +
(lp->stripes * stripesize_extents))))) {
log_print("Rounding size (%d extents) up to stripe " log_print("Rounding size (%d extents) up to stripe "
"boundary size for segment (%d extents)", "boundary size for segment (%d extents)",
lp->extents, lp->extents - size_rest + lp->extents, lp->extents - size_rest +
@ -689,7 +693,6 @@ static int _lvresize(struct cmd_context *cmd, struct volume_group *vg,
lp->extents, lp->extents - size_rest); lp->extents, lp->extents - size_rest);
lp->extents = lp->extents - size_rest; lp->extents = lp->extents - size_rest;
} }
} }
if (lp->extents < lv->le_count) { if (lp->extents < lv->le_count) {