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
F132107258: D28880.id86186.diff
Mon, Oct 13, 6:41 PM
Unknown Object (File)
Sun, Oct 12, 1:46 PM
Unknown Object (File)
Sun, Oct 12, 1:17 PM
Unknown Object (File)
Sun, Oct 12, 12:46 PM
Unknown Object (File)
Fri, Oct 10, 1:54 AM
Unknown Object (File)
Sun, Oct 5, 4:37 AM
Unknown Object (File)
Sat, Oct 4, 10:03 PM
Unknown Object (File)
Sat, Oct 4, 3:44 PM

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
rG FreeBSD src repository
Lint
Lint Not Applicable
Unit
Tests Not Applicable

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