parallel zfs mount

[Alexander Motin]

Hi Jack,

I've tried to merge respective Illumos patches to FreeBSD when they got
to Illumos, but that appeared to be problematic due to total mess of
kernel and user-space locking primitives and types in ZFS headers,
additionally complicated by FreeBSD shims.  After spending there several
days I gave up.

I haven't checked myself, but I heard that Linux took different approach
and just reimplemented it completely in different primitives, possibly
to avoid the same kind of problems.  If I had time for second try, I'd
try this way.

On 04.02.2019 05:27, Jack Halford wrote:
> Hello all,
> 
> Gandi has a need for parallel mounting of zfs datasets, apparently this
> has been implemented on illumos [1] and then was ported to ZOL [2]. I'm
> wondering if anybody has started any work in this direction for FreeBSD
> and maybe just hasn't upstreamed or doesn't have the time for the
> review, I'd be open to do that work.
> 
> Otherwise I'll probably start porting this patch for FreeBSD myself.
> 
> [1] https://www.illumos.org/issues/8115
> [2] https://github.com/zfsonlinux/zfs/pull/8092
> 
> --jack
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-- 
Alexander Motin