Commit b48596ef authored Jan 05, 2021 by Ziye Yang Committed by Tomasz Zawadzki Jan 14, 2021

lib/nbd: Remove errno != EWOULDBLOCK in nbd_socket_rw



In this commit (a1d4a714),
we refactor the code but introduce the new error comparison.

And it causes the hang issue in some cases for RPC, so remove
it.

Change-Id: I4da802dff24b7efc27dd25a05739f1def37c1486
Signed-off-by: Ziye Yang <ziye.yang@intel.com>
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/5767


Community-CI: Mellanox Build Bot
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by:  <dongx.yi@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>

parent 01f2d0bd

lib/nbd/nbd.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -439,7 +439,7 @@ nbd_socket_rw(int fd, void *buf, size_t length, bool read_op)
		if (rc == 0) {
		return -EIO;
		} else if (rc == -1) {
		if (errno != EAGAIN && errno != EWOULDBLOCK) {
		if (errno != EAGAIN) {
		return -errno;
		}
		return 0;