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nbd: Create struct for tracking export info

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The NBD Protocol is introducing some additional information
about exports, such as minimum request size and alignment, as
well as an advertised maximum request size.  It will be easier
to feed this information back to the block layer if we gather
all the information into a struct, rather than adding yet more
pointer parameters during negotiation.

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <20170707203049.534-2-eblake@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Eric Blake 2017-07-07 15:30:41 -05:00 • committed by Paolo Bonzini
parent 1221a47467
commit 004a89fce9
6 changed files with 47 additions and 45 deletions
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2
block/nbd.c
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@ -492,7 +492,7 @@ static int64_t nbd_getlength(BlockDriverState *bs)
{
BDRVNBDState *s = bs->opaque;
return s->client.size;
return s->client.info.size;
}
static void nbd_detach_aio_context(BlockDriverState *bs)