Commit 4ba5e901 authored Aug 05, 2020 by Ziye Yang Committed by Jim Harris Aug 06, 2020

nbd: Add the O_DIRECT flag when opening the file.



To eliminate the cache issue.

Signed-off-by: Ziye Yang <ziye.yang@intel.com>
Change-Id: Id67fabb901de9666e6bad04c9df74a538bdbc659
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/3662


Community-CI: Mellanox Build Bot
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Sun Zhenyuan <sunzhenyuan@baidu.com>

parent 7bac9b06

lib/nbd/nbd.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -1060,7 +1060,7 @@ spdk_nbd_start(const char bdev_name, const char nbd_path,
		goto err;
		}

		nbd->dev_fd = open(nbd_path, O_RDWR);
		nbd->dev_fd = open(nbd_path, O_RDWR \| O_DIRECT);
		if (nbd->dev_fd == -1) {
		SPDK_ERRLOG("open(\"%s\") failed: %s\n", nbd_path, spdk_strerror(errno));
		rc = -errno;