File nfsrahead-quieten-misleading-error-for-non-NFS-block-devic.patch of Package nfs-utils

From: Aaron Tomlin <atomlin@atomlin.com>
Date: Wed, 11 Mar 2026 15:14:16 -0400
Subject: nfsrahead: quieten misleading error for non-NFS block devices
Git-repo: git://git.linux-nfs.org/projects/steved/nfs-utils.git
Git-commit: 3395a0aa79286ce9c3df283fd9fb6db14dbbc333
References: bsc#1259595

When get_device_info() evaluates a physical block device via the
fast-path rejection logic, it deliberately returns -ENODEV.

Previously, main() handled this by logging a D_GENERAL error ("unable to
find device"). Because udev invokes nfsrahead for all block devices
across the system, this results in misleading journal spam for devices
that were intentionally skipped, rather than genuinely missing.

Update the error handling logic in main() to explicitly catch the
-ENODEV return code. When encountered, log a more accurate "skipping
non-NFS device" message at the D_ALL debugging level. This prevents
unnecessary journal noise whilst maintaining the existing behaviour of
returning the errno exit status.

Reported-by: Yi Zhang <yi.zhang@redhat.com>
Tested-by: Yi Zhang <yi.zhang@redhat.com>
Signed-off-by: Aaron Tomlin <atomlin@atomlin.com>
Signed-off-by: Steve Dickson <steved@redhat.com>
Acked-by: Anthony Iliopoulos <ailiop@suse.com>
---
 tools/nfsrahead/main.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/tools/nfsrahead/main.c b/tools/nfsrahead/main.c
index 33487f37badb..86c7fcc6d30c 100644
--- a/tools/nfsrahead/main.c
+++ b/tools/nfsrahead/main.c
@@ -218,7 +218,11 @@ int main(int argc, char **argv)
 	if ((argc - optind) != 1)
 		xlog_err("expected the device number of a BDI; is udev ok?");
 
-	if ((ret = get_device_info(argv[optind], &device)) != 0 || device.fstype == NULL) {
+	ret = get_device_info(argv[optind], &device);
+	if (ret == -ENODEV) {
+		xlog(D_ALL, "skipping non-NFS device %s\n", argv[optind]);
+		goto out;
+	} else if (ret != 0 || device.fstype == NULL) {
 		xlog(D_GENERAL, "unable to find device %s\n", argv[optind]);
 		goto out;
 	}