Re: [PATCH 3/3] block: implement (some of) fallocate for block devices

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"Christoph" == Christoph Hellwig [off-list ref] writes:

Christoph> On Mon, Mar 21, 2016 at 10:52:35AM -0700, Darrick J. Wong wrote:

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I don't really understand the comment.  But I think you'd be much

I don't know of a block device primitive that corresponds to the
"default" mode of fallocate, as documented in the manpage (i.e. mode
== 0).  I agree that the whole thing could be simplified in the
manner you point out below.

Christoph> SCSI allows 'anchoring' blocks, which is pretty similar to a
Christoph> normal fallocate, but we don't support anchoring blocks in
Christoph> Linux yet.

Chicken and egg problem. I actually did tinker with this for a different
project a while back and can easily revive it.

-- 
Martin K. Petersen	Oracle Linux Engineering