> On Jan 13, 2016, at 9:26 AM, Allan Jude <allanj...@freebsd.org> wrote: > > On 2016-01-13 08:18, Slawa Olhovchenkov wrote: >> On Tue, Jan 12, 2016 at 04:38:09PM +0000, Allan Jude wrote: >> >>> Author: allanjude >>> Date: Tue Jan 12 16:38:09 2016 >>> New Revision: 293776 >>> URL: https://svnweb.freebsd.org/changeset/base/293776 >>> >>> Log: >>> MFC: r284589 >>> Add the ability to detect ZFS and GELI encrypted file systems to fstyp(8) >>> >>> MFC: r284644 >>> Fix GCC Warnings >>> >>> MFC: r284728 >>> Only build ZFS support in absense of WITHOUT_ZFS >> >> What purpose for switch off ZFS support in case WITHOUT_ZFS? >> > > If the user builds FreeBSD WITHOUT_CDDL or WITHOUT_ZFS, then they are > requesting that we not build the ZFS code, so building it anyway would > be against their wishes. The most likely reason they would request this > is for license reasons.
For x86, that may be true. For arm and mips platforms, ZFS is too much of a memory pig-dog to run on much of the kit we run on in that space. Turning it off is part of removing the type 2 muda from the system. In any event, the double negative is true. Don’t build ZFS when its absence has been requested with WITHOUT_ZFS is correct. Warner
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