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| author | Eric Blake <eblake@redhat.com> | 2018-03-27 16:05:17 -0500 |
|---|---|---|
| committer | Eric Blake <eblake@redhat.com> | 2018-04-02 08:45:21 -0500 |
| commit | 00d96a4612f81e82c181fe821d527e98abcbac07 (patch) | |
| tree | deab23533921cef2da3f8379068683c701f6e350 | |
| parent | f184de7553272223d6af731d7d623a7cebf710b5 (diff) | |
| download | focaccia-qemu-00d96a4612f81e82c181fe821d527e98abcbac07.tar.gz focaccia-qemu-00d96a4612f81e82c181fe821d527e98abcbac07.zip | |
nbd: Fix 32-bit compilation on BLOCK_STATUS
iotests 123 and 209 fail on 32-bit platforms. The culprit: sizeof(extent) is wrong; we want sizeof(*extent). But since the struct is 8 bytes, it happened to work on 64-bit platforms where the pointer is also 8 bytes (nasty). Fixes: 78a33ab58 Reported-by: Max Reitz <mreitz@redhat.com> Signed-off-by: Eric Blake <eblake@redhat.com> Message-Id: <20180327210517.1804242-1-eblake@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
| -rw-r--r-- | block/nbd-client.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/block/nbd-client.c b/block/nbd-client.c index e64e346d69..e7caf49fbb 100644 --- a/block/nbd-client.c +++ b/block/nbd-client.c @@ -239,7 +239,7 @@ static int nbd_parse_blockstatus_payload(NBDClientSession *client, { uint32_t context_id; - if (chunk->length != sizeof(context_id) + sizeof(extent)) { + if (chunk->length != sizeof(context_id) + sizeof(*extent)) { error_setg(errp, "Protocol error: invalid payload for " "NBD_REPLY_TYPE_BLOCK_STATUS"); return -EINVAL; |