Bug 858113
| Summary: | --discards doesn't work with lvcreate and the default is ignore not passdown. | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 7 | Reporter: | Xiaowei Li <xiaoli> |
| Component: | lvm2 | Assignee: | LVM and device-mapper development team <lvm-team> |
| lvm2 sub component: | Default / Unclassified | QA Contact: | cluster-qe <cluster-qe> |
| Status: | CLOSED CURRENTRELEASE | Docs Contact: | |
| Severity: | high | ||
| Priority: | unspecified | CC: | agk, heinzm, jbrassow, msnitzer, prajnoha, prockai, qcai, thornber, zkabelac |
| Version: | 7.0 | ||
| Target Milestone: | rc | ||
| Target Release: | --- | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2012-12-07 07:01:01 UTC | Type: | Bug |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
Already fixed in upstream: https://www.redhat.com/archives/lvm-devel/2012-August/msg00062.html (Before the release of lvm2-2.02.97, there were some changes that've missed to update some related code parts) verified with lvm2-2.02.98-2.el7.x86_64 |
Description of problem: --discards doesn't work with lvcreate and the default is ignore not passdown. Version-Release number of selected component (if applicable): lvm2-2.02.97-1.el7.x86_64 How reproducible: Steps to Reproduce: 1. man lvcreate === --discards {ignore|nopassdown|passdown} Set discards behavior. Default is passdown. === 2. create thin pool with --discards # lvcreate -L16m -T tsvg/pool1 # lvcreate -L16m -T tsvg/pool2 --discards nopassdown 3. # lvs -ovg_name,lv_name,discards tsvg VG LV Discards tsvg pool1 ignore tsvg pool2 ignore # dmsetup table --target thin-pool tsvg-pool1-tpool: 0 32768 thin-pool 253:1 253:2 128 0 1 ignore_discard tsvg-pool2-tpool: 0 32768 thin-pool 253:5 253:6 128 0 1 ignore_discard from the debug log: === #lvmcmdline.c:1087 Processing: lvcreate -L16m -T tsvg/pool3 --discards nopassdown -vvvv >>>snip>>> #libdm-deptree.c:2324 Adding target to (253:12): 0 32768 thin-pool 253:10 253:11 128 0 1 ignore_discard === Actual results: Expected results: Additional info: