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[Qemu-devel] [PULL 29/41] nbd/server: get rid of EAGAIN dead code
From: |
Paolo Bonzini |
Subject: |
[Qemu-devel] [PULL 29/41] nbd/server: get rid of EAGAIN dead code |
Date: |
Thu, 15 Jun 2017 12:52:49 +0200 |
From: Vladimir Sementsov-Ogievskiy <address@hidden>
For now nbd_read never returns EAGAIN. So, don't handle it.
Signed-off-by: Vladimir Sementsov-Ogievskiy <address@hidden>
Reviewed-by: Eric Blake <address@hidden>
Message-Id: <address@hidden>
Signed-off-by: Paolo Bonzini <address@hidden>
---
nbd/server.c | 18 +++++++-----------
1 file changed, 7 insertions(+), 11 deletions(-)
diff --git a/nbd/server.c b/nbd/server.c
index 8ceac89..00a19f6 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;
}
--
1.8.3.1
- [Qemu-devel] [PULL 22/41] tcg: move tcg backend files into accel/tcg/, (continued)
- [Qemu-devel] [PULL 22/41] tcg: move tcg backend files into accel/tcg/, Paolo Bonzini, 2017/06/15
- [Qemu-devel] [PULL 17/41] hax-all: make async_safe_run_on_cpu safe on HAX too, Paolo Bonzini, 2017/06/15
- [Qemu-devel] [PULL 13/41] megasas: always store SCSIRequest* into MegasasCmd, Paolo Bonzini, 2017/06/15
- [Qemu-devel] [PULL 15/41] vl: Fix broken thread=xxx option of the --accel parameter, Paolo Bonzini, 2017/06/15
- [Qemu-devel] [PULL 25/41] nbd: make nbd_drop public, Paolo Bonzini, 2017/06/15
- [Qemu-devel] [PULL 23/41] accel: move kvm related accelerator files into accel/, Paolo Bonzini, 2017/06/15
- [Qemu-devel] [PULL 26/41] nbd/server: get rid of nbd_negotiate_read and friends, Paolo Bonzini, 2017/06/15
- [Qemu-devel] [PULL 28/41] nbd/server: refactor nbd_co_send_reply, Paolo Bonzini, 2017/06/15
- [Qemu-devel] [PULL 27/41] nbd/server: get rid of ssize_t, Paolo Bonzini, 2017/06/15
- [Qemu-devel] [PULL 19/41] qemu-nbd: Ignore SIGPIPE, Paolo Bonzini, 2017/06/15
- [Qemu-devel] [PULL 29/41] nbd/server: get rid of EAGAIN dead code,
Paolo Bonzini <=
- [Qemu-devel] [PULL 35/41] nbd/server: refactor nbd_trip, Paolo Bonzini, 2017/06/15
- [Qemu-devel] [PULL 10/41] megasas: do not read DCMD opcode more than once from frame, Paolo Bonzini, 2017/06/15
- [Qemu-devel] [PULL 11/41] megasas: do not read command more than once from frame, Paolo Bonzini, 2017/06/15
- [Qemu-devel] [PULL 05/41] ivshmem: use ram_from_fd(), Paolo Bonzini, 2017/06/15
- [Qemu-devel] [PULL 18/41] nbd: Fix regression on resiliency to port scan, Paolo Bonzini, 2017/06/15
- [Qemu-devel] [PULL 07/41] megasas: add qtest, Paolo Bonzini, 2017/06/15
- [Qemu-devel] [PULL 24/41] nbd: rename read_sync and friends, Paolo Bonzini, 2017/06/15
- [Qemu-devel] [PULL 30/41] nbd/server: refactor nbd_co_receive_request, Paolo Bonzini, 2017/06/15
- [Qemu-devel] [PULL 34/41] nbd/server: rename rc to ret, Paolo Bonzini, 2017/06/15
- [Qemu-devel] [PULL 31/41] nbd/server: remove NBDClientNewData, Paolo Bonzini, 2017/06/15