Page MenuHomeFreeBSD

bhyve: Use fspacectl(2) for BOP_DELETE on regular file images
ClosedPublic

Authored by khng on Feb 23 2021, 6:43 AM.
Tags
None
Referenced Files
Unknown Object (File)
Thu, Aug 21, 8:20 AM
Unknown Object (File)
Tue, Aug 19, 11:21 AM
Unknown Object (File)
Sun, Aug 17, 8:22 PM
Unknown Object (File)
Fri, Aug 15, 11:47 PM
Unknown Object (File)
Thu, Aug 14, 10:11 PM
Unknown Object (File)
Sat, Aug 9, 9:01 AM
Unknown Object (File)
Tue, Aug 5, 11:50 AM
Unknown Object (File)
Tue, Aug 5, 2:40 AM

Details

Summary

bhyve can also make use of fspacectl(2) to implement BOP_DELETE with
hole-punching. Since it is not desirable to do zero-filling for large
DEALLOCATE/UNMAP range, candelete is not set if pathconf(2) indicates
that the underlying file system does not support native
VOP_DEALLOCATE(9).

Submitted by: Ka Ho Ng <khng@freebsdfoundation.org>
Sponsored by: The FreeBSD Foundation

Diff Detail

Repository
rS FreeBSD src repository - subversion
Lint
Lint Passed
Unit
No Test Coverage
Build Status
Buildable 40914
Build 37803: arc lint + arc unit

Event Timeline

khng requested review of this revision.Feb 23 2021, 6:43 AM

Bump due to updates of D28347 (fspacectl(2) added new param)

This revision is now accepted and ready to land.Aug 5 2021, 11:30 PM

Loop over to guarantee the whole region is finished.

This revision now requires review to proceed.Aug 7 2021, 8:13 AM
This revision is now accepted and ready to land.Aug 7 2021, 8:49 AM