From bc5a03350c220698229e7d6929dd242d5d358345 Mon Sep 17 00:00:00 2001 From: Vladimir Sementsov-Ogievskiy Date: Fri, 1 Feb 2019 16:01:38 +0300 Subject: [PATCH] block/nbd-client: rename read_reply_co to connection_co This coroutine will serve nbd reconnects, so, rename it to be something more generic. Signed-off-by: Vladimir Sementsov-Ogievskiy Reviewed-by: Eric Blake Message-Id: <20190201130138.94525-7-vsementsov@virtuozzo.com> Signed-off-by: Eric Blake --- block/nbd-client.c | 24 ++++++++++++------------ block/nbd-client.h | 4 ++-- 2 files changed, 14 insertions(+), 14 deletions(-) diff --git a/block/nbd-client.c b/block/nbd-client.c index 386c3feb14..f0ad54ce21 100644 --- a/block/nbd-client.c +++ b/block/nbd-client.c @@ -59,7 +59,7 @@ static void nbd_teardown_connection(BlockDriverState *bs) qio_channel_shutdown(client->ioc, QIO_CHANNEL_SHUTDOWN_BOTH, NULL); - BDRV_POLL_WHILE(bs, client->read_reply_co); + BDRV_POLL_WHILE(bs, client->connection_co); nbd_client_detach_aio_context(bs); object_unref(OBJECT(client->sioc)); @@ -68,7 +68,7 @@ static void nbd_teardown_connection(BlockDriverState *bs) client->ioc = NULL; } -static coroutine_fn void nbd_read_reply_entry(void *opaque) +static coroutine_fn void nbd_connection_entry(void *opaque) { NBDClientSession *s = opaque; uint64_t i; @@ -100,14 +100,14 @@ static coroutine_fn void nbd_read_reply_entry(void *opaque) } /* We're woken up again by the request itself. Note that there - * is no race between yielding and reentering read_reply_co. This + * is no race between yielding and reentering connection_co. This * is because: * * - if the request runs on the same AioContext, it is only * entered after we yield * * - if the request runs on a different AioContext, reentering - * read_reply_co happens through a bottom half, which can only + * connection_co happens through a bottom half, which can only * run after we yield. */ aio_co_wake(s->requests[i].coroutine); @@ -116,7 +116,7 @@ static coroutine_fn void nbd_read_reply_entry(void *opaque) s->quit = true; nbd_recv_coroutines_wake_all(s); - s->read_reply_co = NULL; + s->connection_co = NULL; aio_wait_kick(); } @@ -420,7 +420,7 @@ static coroutine_fn int nbd_co_do_receive_one_chunk( } *request_ret = 0; - /* Wait until we're woken up by nbd_read_reply_entry. */ + /* Wait until we're woken up by nbd_connection_entry. */ s->requests[i].receiving = true; qemu_coroutine_yield(); s->requests[i].receiving = false; @@ -495,7 +495,7 @@ static coroutine_fn int nbd_co_do_receive_one_chunk( } /* nbd_co_receive_one_chunk - * Read reply, wake up read_reply_co and set s->quit if needed. + * Read reply, wake up connection_co and set s->quit if needed. * Return value is a fatal error code or normal nbd reply error code */ static coroutine_fn int nbd_co_receive_one_chunk( @@ -509,15 +509,15 @@ static coroutine_fn int nbd_co_receive_one_chunk( if (ret < 0) { s->quit = true; } else { - /* For assert at loop start in nbd_read_reply_entry */ + /* For assert at loop start in nbd_connection_entry */ if (reply) { *reply = s->reply; } s->reply.handle = 0; } - if (s->read_reply_co) { - aio_co_wake(s->read_reply_co); + if (s->connection_co) { + aio_co_wake(s->connection_co); } return ret; @@ -970,7 +970,7 @@ void nbd_client_attach_aio_context(BlockDriverState *bs, { NBDClientSession *client = nbd_get_client_session(bs); qio_channel_attach_aio_context(QIO_CHANNEL(client->ioc), new_context); - aio_co_schedule(new_context, client->read_reply_co); + aio_co_schedule(new_context, client->connection_co); } void nbd_client_close(BlockDriverState *bs) @@ -1075,7 +1075,7 @@ static int nbd_client_connect(BlockDriverState *bs, /* Now that we're connected, set the socket to be non-blocking and * kick the reply mechanism. */ qio_channel_set_blocking(QIO_CHANNEL(sioc), false, NULL); - client->read_reply_co = qemu_coroutine_create(nbd_read_reply_entry, client); + client->connection_co = qemu_coroutine_create(nbd_connection_entry, client); nbd_client_attach_aio_context(bs, bdrv_get_aio_context(bs)); logout("Established connection with NBD server\n"); diff --git a/block/nbd-client.h b/block/nbd-client.h index 2f047ba614..d990207a5c 100644 --- a/block/nbd-client.h +++ b/block/nbd-client.h @@ -20,7 +20,7 @@ typedef struct { Coroutine *coroutine; uint64_t offset; /* original offset of the request */ - bool receiving; /* waiting for read_reply_co? */ + bool receiving; /* waiting for connection_co? */ } NBDClientRequest; typedef struct NBDClientSession { @@ -30,7 +30,7 @@ typedef struct NBDClientSession { CoMutex send_mutex; CoQueue free_sema; - Coroutine *read_reply_co; + Coroutine *connection_co; int in_flight; NBDClientRequest requests[MAX_NBD_REQUESTS];