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authorKevin Wolf <kwolf@redhat.com>2019-02-18 14:56:01 +0100
committerKevin Wolf <kwolf@redhat.com>2019-02-25 15:03:19 +0100
commitd3bd5b90890f6715bcee38e00745112157dfbe59 (patch)
tree3f712b4e248b6902231e755db75cb49ef80e41a5 /include/block
parenta7b78fc944b20b953d68426b7db2c81fc6a5b5af (diff)
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nbd: Use low-level QIOChannel API in nbd_read_eof()
Instead of using the convenience wrapper qio_channel_read_all_eof(), use the lower level QIOChannel API. This means duplicating some code, but we'll need this because this coroutine yield is special: We want it to be interruptible so that nbd_client_attach_aio_context() can correctly reenter the coroutine. This moves the bdrv_dec/inc_in_flight() pair into nbd_read_eof(), so that connection_co will always sit in this exact qio_channel_yield() call when bdrv_drain() returns. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
Diffstat (limited to 'include/block')
-rw-r--r--include/block/nbd.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/include/block/nbd.h b/include/block/nbd.h
index cad975e..c6ef1ef 100644
--- a/include/block/nbd.h
+++ b/include/block/nbd.h
@@ -300,8 +300,8 @@ int nbd_receive_export_list(QIOChannel *ioc, QCryptoTLSCreds *tlscreds,
int nbd_init(int fd, QIOChannelSocket *sioc, NBDExportInfo *info,
Error **errp);
int nbd_send_request(QIOChannel *ioc, NBDRequest *request);
-int coroutine_fn nbd_receive_reply(QIOChannel *ioc, NBDReply *reply,
- Error **errp);
+int coroutine_fn nbd_receive_reply(BlockDriverState *bs, QIOChannel *ioc,
+ NBDReply *reply, Error **errp);
int nbd_client(int fd);
int nbd_disconnect(int fd);
int nbd_errno_to_system_errno(int err);