From: Jeff Layton <jlayton@kernel.org>
Date: Wed, 30 Jul 2025 13:24:31 +0000 (-0400)
Subject: nfsd: ignore ATTR_DELEG when checking ia_valid before notify_change()
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=5affb498e70bba3053b835c478a199bf92c99c4d;p=users%2Fhch%2Fmisc.git

nfsd: ignore ATTR_DELEG when checking ia_valid before notify_change()

If the only flag left is ATTR_DELEG, then there are no changes to be
made.

Fixes: 7e13f4f8d27d ("nfsd: handle delegated timestamps in SETATTR")
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
---

diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
index edf050766e57..3cd3b9e069f4 100644
--- a/fs/nfsd/vfs.c
+++ b/fs/nfsd/vfs.c
@@ -467,7 +467,7 @@ static int __nfsd_setattr(struct dentry *dentry, struct iattr *iap)
 			return 0;
 	}
 
-	if (!iap->ia_valid)
+	if ((iap->ia_valid & ~ATTR_DELEG) == 0)
 		return 0;
 
 	/*