[PATCH 4.19 175/229] NFSD: Return nfserr_serverfault if splice_ok but buf->pages have data

[Greg Kroah-Hartman]

From: Anna Schumaker <Anna.Schumaker@xxxxxxxxxx>

[ Upstream commit 06981d560606ac48d61e5f4fff6738b925c93173 ]

This was discussed with Chuck as part of this patch set. Returning
nfserr_resource was decided to not be the best error message here, and
he suggested changing to nfserr_serverfault instead.

Signed-off-by: Anna Schumaker <Anna.Schumaker@xxxxxxxxxx>
Link: https://lore.kernel.org/linux-nfs/20220907195259.926736-1-anna@xxxxxxxxxx/T/#t
Signed-off-by: Chuck Lever <chuck.lever@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 fs/nfsd/nfs4xdr.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index f67c5de1aeb8..96b79bd90631 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -3594,7 +3594,7 @@ nfsd4_encode_read(struct nfsd4_compoundres *resp, __be32 nfserr,
 	if (resp->xdr.buf->page_len &&
 	    test_bit(RQ_SPLICE_OK, &resp->rqstp->rq_flags)) {
 		WARN_ON_ONCE(1);
-		return nfserr_resource;
+		return nfserr_serverfault;
 	}
 	xdr_commit_encode(xdr);
 
-- 
2.35.1