diff options
Diffstat (limited to 'nbd.c')
| -rw-r--r-- | nbd.c | 13 |
1 files changed, 11 insertions, 2 deletions
@@ -202,7 +202,8 @@ int nbd_negotiate(int csock, off_t size, uint32_t flags) memcpy(buf, "NBDMAGIC", 8); cpu_to_be64w((uint64_t*)(buf + 8), 0x00420281861253LL); cpu_to_be64w((uint64_t*)(buf + 16), size); - cpu_to_be32w((uint32_t*)(buf + 24), flags | NBD_FLAG_HAS_FLAGS); + cpu_to_be32w((uint32_t*)(buf + 24), + flags | NBD_FLAG_HAS_FLAGS | NBD_FLAG_SEND_FUA); memset(buf + 28, 0, 124); if (write_sync(csock, buf, sizeof(buf)) != sizeof(buf)) { @@ -630,7 +631,7 @@ int nbd_trip(BlockDriverState *bs, int csock, off_t size, uint64_t dev_offset, reply.handle = request.handle; reply.error = 0; - switch (request.type) { + switch (request.type & NBD_CMD_MASK_COMMAND) { case NBD_CMD_READ: TRACE("Request type is READ"); @@ -692,6 +693,14 @@ int nbd_trip(BlockDriverState *bs, int csock, off_t size, uint64_t dev_offset, } *offset += request.len; + + if (request.type & NBD_CMD_FLAG_FUA) { + ret = bdrv_flush(bs); + if (ret < 0) { + LOG("flush failed"); + reply.error = -ret; + } + } } if (nbd_send_reply(csock, &reply) == -1) |