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block/nbd-client: drop max_block restriction from discard 

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

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20200401150112.9557-3-vsementsov@virtuozzo.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
[eblake: tweak commit message to call out NBD commit]
Signed-off-by: Eric Blake <eblake@redhat.com>
This commit is contained in:
Vladimir Sementsov-Ogievskiy 2020-04-01 18:01:08 +03:00 committed by Eric Blake
parent 6bf792b464
commit 714eb0dbc5
1 changed files with 1 additions and 1 deletions
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2
block/nbd.c
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@ -1955,7 +1955,7 @@ static void nbd_refresh_limits(BlockDriverState *bs, Error **errp)
}
bs->bl.request_alignment = min;
bs->bl.max_pdiscard = max;
bs->bl.max_pdiscard = QEMU_ALIGN_DOWN(INT_MAX, min);
bs->bl.max_pwrite_zeroes = max;
bs->bl.max_transfer = max;