linux-kernel - [PATCH v2 2/7] nfsd: ignore ATTR_DELEG when checking ia_valid before notify

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Message-Id: <20250726-nfsd-testing-v2-2-f45923db2fbb@kernel.org>
Date: Sat, 26 Jul 2025 10:31:56 -0400
From: Jeff Layton <jlayton@...nel.org>
To: Alexander Viro <viro@...iv.linux.org.uk>, 
 Christian Brauner <brauner@...nel.org>, Jan Kara <jack@...e.cz>, 
 Steven Rostedt <rostedt@...dmis.org>, 
 Masami Hiramatsu <mhiramat@...nel.org>, 
 Mathieu Desnoyers <mathieu.desnoyers@...icios.com>, 
 Chuck Lever <chuck.lever@...cle.com>, NeilBrown <neil@...wn.name>, 
 Olga Kornievskaia <okorniev@...hat.com>, Dai Ngo <Dai.Ngo@...cle.com>, 
 Tom Talpey <tom@...pey.com>
Cc: Trond Myklebust <trondmy@...merspace.com>, 
 Anna Schumaker <anna@...nel.org>, linux-fsdevel@...r.kernel.org, 
 linux-kernel@...r.kernel.org, linux-trace-kernel@...r.kernel.org, 
 linux-nfs@...r.kernel.org, Jeff Layton <jlayton@...nel.org>
Subject: [PATCH v2 2/7] 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.

Signed-off-by: Jeff Layton <jlayton@...nel.org>
---
 fs/nfsd/vfs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
index eaf04751d07fe9be4d1dd08477bc5a38ac99be3a..68d42fc5504d8750174b9a2aef10886ed92f528b 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;
 
 	/*

-- 
2.50.1