[PATCH v3 1/7] NFS: CB_OFFLOAD can return NFS4ERR_DELAY

cel
2025-01-13T15:32:47Z

RFC 7862 permits the callback service to respond to a CB_OFFLOAD
operation with NFS4ERR_DELAY. Use that instead of
NFS4ERR_SERVERFAULT for temporary memory allocation failure, as that
is more consistent with how other operations report memory
allocation failure.

Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
---
fs/nfs/callback_proc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/nfs/callback_proc.c b/fs/nfs/callback_proc.c
index 7832fb0369a1..8397c43358bd 100644
--- a/fs/nfs/callback_proc.c
+++ b/fs/nfs/callback_proc.c
@@ -718,7 +718,7 @@ __be32 nfs4_callback_offload(void *data, void *dummy,

copy = kzalloc(sizeof(struct nfs4_copy_state), GFP_KERNEL);
if (!copy)
- return htonl(NFS4ERR_SERVERFAULT);
+ return cpu_to_be32(NFS4ERR_DELAY);

spin_lock(&cps->clp->cl_lock);
rcu_read_lock();
--
2.47.0