[PATCH nfs-utils v3 11/11] mountd: don't warn about pipefs submounts nobody asked to export

[Jeff Layton <jlayton@kernel.org>]

nfsd_export() warns whenever dump_to_cache() cannot work out the
attributes for a path, including a crossmnt submount the admin never
asked to export.  With "/" exported crossmnt that is one warning per
proc, sys or autofs mount per TTL, and nothing the admin can act on.

Use the same test the netlink downcall now uses: warn only when the
request is for a path exported in its own right.

Assisted-by: LLM
Signed-off-by: Jeff Layton <jlayton@kernel.org>
---
 support/export/cache.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/support/export/cache.c b/support/export/cache.c
index d1fef23a6c0f..c1201f24bfd4 100644
--- a/support/export/cache.c
+++ b/support/export/cache.c
@@ -3750,7 +3750,8 @@ static void nfsd_export(int f)
 			 */
 			if (errno == EAGAIN)
 				goto out;
-			xlog(L_WARNING,
+			xlog(export_is_explicit(found, path) ? L_WARNING
+							     : D_GENERAL,
 			     "Cannot export %s, possibly unsupported filesystem"
 			     " or fsid= required", path);
 			dump_to_cache(f, buf, sizeof(buf), dom, path, NULL, 0);

-- 
2.55.0