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| author | Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> | 2018-03-12 18:21:23 +0300 |
|---|---|---|
| committer | Eric Blake <eblake@redhat.com> | 2018-03-13 15:43:48 -0500 |
| commit | 78a33ab58782efdb206de14fa44ea626e2360bfc (patch) | |
| tree | fa7858141d63f531161b407db2f55e5cee44f065 /block/nbd-client.h | |
| parent | 1e98efc0299977a4b0815c2d0a216ae19881e389 (diff) | |
| download | qemu-78a33ab58782efdb206de14fa44ea626e2360bfc.tar.gz | |
nbd: BLOCK_STATUS for standard get_block_status function: client part
Minimal realization: only one extent in server answer is supported.
Flag NBD_CMD_FLAG_REQ_ONE is used to force this behavior.
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20180312152126.286890-6-vsementsov@virtuozzo.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
[eblake: grammar tweaks, fix min_block check and 32-bit cap, use -1
instead of errno on failure in nbd_negotiate_simple_meta_context,
ensure that block status makes progress on success]
Signed-off-by: Eric Blake <eblake@redhat.com>
Diffstat (limited to 'block/nbd-client.h')
| -rw-r--r-- | block/nbd-client.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/block/nbd-client.h b/block/nbd-client.h index 612c4c21a0..0ece76e5af 100644 --- a/block/nbd-client.h +++ b/block/nbd-client.h @@ -61,4 +61,10 @@ void nbd_client_detach_aio_context(BlockDriverState *bs); void nbd_client_attach_aio_context(BlockDriverState *bs, AioContext *new_context); +int coroutine_fn nbd_client_co_block_status(BlockDriverState *bs, + bool want_zero, + int64_t offset, int64_t bytes, + int64_t *pnum, int64_t *map, + BlockDriverState **file); + #endif /* NBD_CLIENT_H */ |