Bug 824900

Summary:	[RFE] Support FITRIM for snapshot creation for thin provisioned devices
Product:	[Community] LVM and device-mapper	Reporter:	Zdenek Kabelac <zkabelac>
Component:	lvm2	Assignee:	LVM and device-mapper development team <lvm-team>
lvm2 sub component:	Thin Provisioning	QA Contact:	cluster-qe <cluster-qe>
Status:	CLOSED WONTFIX	Docs Contact:
Severity:	unspecified
Priority:	unspecified	CC:	agk, bmarzins, bmr, dwysocha, gmazyland, heinzm, jbrassow, jonathan, lczerner, lvm-team, msnitzer, prajnoha, thornber, zkabelac
Version:	2.02.166	Flags:	rule-engine: lvm-technical-solution? rule-engine: lvm-test-coverage?
Target Milestone:	---
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Hardware:	Unspecified
OS:	Unspecified
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Fixed In Version:		Doc Type:	Bug Fix
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Last Closed:	2020-06-29 20:48:45 UTC	Type:	Bug
Regression:	---	Mount Type:	---
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Zdenek Kabelac 2012-05-24 14:34:50 UTC

Description of problem:

If the filesystem supports FITRIM ioctl on its mountpoint, it might be able to safe some space in the pool, if the FITRIM operation is done before the new snapshot
is created.


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Comment 2 Jonathan Earl Brassow 2020-06-29 20:48:45 UTC

closing this bug.  It's unclear to me exactly what is being asked here - snapshot trigger an FS trim beforehand?  Users are already capable of doing this on their own, no?