Commit 6bf792b4 authored by Vladimir Sementsov-Ogievskiy's avatar Vladimir Sementsov-Ogievskiy Committed by Eric Blake
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block/nbd-client: drop max_block restriction from block_status 



The NBD spec was updated (see nbd.git commit 9f30fedb) so that
max_block doesn't relate to NBD_CMD_BLOCK_STATUS. So, drop the
restriction.

Signed-off-by: default avatarVladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: default avatarEric Blake <eblake@redhat.com>
Message-Id: <20200401150112.9557-2-vsementsov@virtuozzo.com>
[eblake: tweak commit message to call out NBD commit]
Signed-off-by: default avatarEric Blake <eblake@redhat.com>
parent e5ac52d8

block/nbd.c

+1 −3
Original line number Diff line number Diff line
@@ -1320,9 +1320,7 @@ static int coroutine_fn nbd_client_co_block_status( 
    NBDRequest request = {

        .type = NBD_CMD_BLOCK_STATUS,

        .from = offset,

        .len = MIN(MIN_NON_ZERO(QEMU_ALIGN_DOWN(INT_MAX,

                                                bs->bl.request_alignment),

                                s->info.max_block),

        .len = MIN(QEMU_ALIGN_DOWN(INT_MAX, bs->bl.request_alignment),

                   MIN(bytes, s->info.size - offset)),

        .flags = NBD_CMD_FLAG_REQ_ONE,

    };