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[Qemu-devel] [PATCH 04/19] nbd/server: get rid of EAGAIN dead code
From: |
Vladimir Sementsov-Ogievskiy |
Subject: |
[Qemu-devel] [PATCH 04/19] nbd/server: get rid of EAGAIN dead code |
Date: |
Tue, 30 May 2017 17:30:37 +0300 |
For now read_sync never returns EAGAIN. So, don't handle it.
Signed-off-by: Vladimir Sementsov-Ogievskiy <address@hidden>
---
nbd/server.c | 18 +++++++-----------
1 file changed, 7 insertions(+), 11 deletions(-)
diff --git a/nbd/server.c b/nbd/server.c
index e18eb020a7..fcf35f0270 100644
--- a/nbd/server.c
+++ b/nbd/server.c
@@ -997,11 +997,12 @@ static int nbd_co_send_reply(NBDRequestData *req,
NBDReply *reply, int len)
return rc;
}
-/* Collect a client request. Return 0 if request looks valid, -EAGAIN
- * to keep trying the collection, -EIO to drop connection right away,
- * and any other negative value to report an error to the client
- * (although the caller may still need to disconnect after reporting
- * the error). */
+/* nbd_co_receive_request
+ * Collect a client request. Return 0 if request looks valid, -EIO to drop
+ * connection right away, and any other negative value to report an error to
+ * the client (although the caller may still need to disconnect after reporting
+ * the error).
+ */
static int nbd_co_receive_request(NBDRequestData *req, NBDRequest *request)
{
NBDClient *client = req->client;
@@ -1011,9 +1012,7 @@ static int nbd_co_receive_request(NBDRequestData *req,
NBDRequest *request)
assert(client->recv_coroutine == qemu_coroutine_self());
rc = nbd_receive_request(client->ioc, request);
if (rc < 0) {
- if (rc != -EAGAIN) {
- rc = -EIO;
- }
+ rc = -EIO;
goto out;
}
@@ -1114,9 +1113,6 @@ static coroutine_fn void nbd_trip(void *opaque)
req = nbd_request_get(client);
ret = nbd_co_receive_request(req, &request);
- if (ret == -EAGAIN) {
- goto done;
- }
if (ret == -EIO) {
goto out;
}
--
2.11.1
- [Qemu-devel] [PATCH 01/19] nbd/server: get rid of nbd_negotiate_read and friends, (continued)
[Qemu-devel] [PATCH 15/19] nbd/server: use errp instead of LOG, Vladimir Sementsov-Ogievskiy, 2017/05/30
[Qemu-devel] [PATCH 16/19] nbd/server: add errp to nbd_send_reply(), Vladimir Sementsov-Ogievskiy, 2017/05/30
[Qemu-devel] [PATCH 03/19] nbd/server: refactor nbd_co_send_reply, Vladimir Sementsov-Ogievskiy, 2017/05/30
[Qemu-devel] [PATCH 04/19] nbd/server: get rid of EAGAIN dead code,
Vladimir Sementsov-Ogievskiy <=
[Qemu-devel] [PATCH 19/19] nbd: use generic trace subsystem instead of TRACE macro, Vladimir Sementsov-Ogievskiy, 2017/05/30