From: Trond Myklebust <trond.myklebust@hammerspace.com>
Date: Sat, 14 May 2022 10:27:03 -0400
Subject: [PATCH] NFS: Do not report flush errors in nfs_write_end()
Git-commit: d95b26650e86175e4a97698d89bc1626cd1df0c6
Patch-mainline: v5.19
References: git-fixes

If we do flush cached writebacks in nfs_write_end() due to the imminent
expiration of an RPCSEC_GSS session, then we should defer reporting any
resulting errors until the calls to file_check_and_advance_wb_err() in
nfs_file_write() and nfs_file_fsync().

Fixes: 6fbda89b257f ("NFS: Replace custom error reporting mechanism with generic one")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Acked-by: NeilBrown <neilb@suse.com>

---
 fs/nfs/file.c |    7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

--- a/fs/nfs/file.c
+++ b/fs/nfs/file.c
@@ -401,11 +401,8 @@ static int nfs_write_end(struct file *fi
 		return status;
 	NFS_I(mapping->host)->write_io += copied;
 
-	if (nfs_ctx_key_to_expire(ctx, mapping->host)) {
-		status = nfs_wb_all(mapping->host);
-		if (status < 0)
-			return status;
-	}
+	if (nfs_ctx_key_to_expire(ctx, mapping->host))
+		nfs_wb_all(mapping->host);
 
 	return copied;
 }