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authorJeff Layton <jlayton@kernel.org>2025-02-20 19:47:17 +0300
committerChuck Lever <chuck.lever@oracle.com>2025-03-10 16:11:10 +0300
commitff383e8f9440209cf15441bc04627c70a4fe7964 (patch)
treeec01f51ed7ba8f3b1714acdd0e9587c880bcbde2
parent32ce62c0f09cdc5a6b06bb38daec9b9a47302437 (diff)
downloadlinux-ff383e8f9440209cf15441bc04627c70a4fe7964.tar.xz
nfsd: handle errors from rpc_call_async()
It's possible for rpc_call_async() to fail (mainly due to memory allocation failure). If it does, there isn't much recourse other than to requeue the callback and try again later. Signed-off-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
-rw-r--r--fs/nfsd/nfs4callback.c10
1 files changed, 7 insertions, 3 deletions
diff --git a/fs/nfsd/nfs4callback.c b/fs/nfsd/nfs4callback.c
index 018533bb83a3..3f21de06154e 100644
--- a/fs/nfsd/nfs4callback.c
+++ b/fs/nfsd/nfs4callback.c
@@ -1592,7 +1592,7 @@ nfsd4_run_cb_work(struct work_struct *work)
container_of(work, struct nfsd4_callback, cb_work);
struct nfs4_client *clp = cb->cb_clp;
struct rpc_clnt *clnt;
- int flags;
+ int flags, ret;
trace_nfsd_cb_start(clp);
@@ -1625,8 +1625,12 @@ nfsd4_run_cb_work(struct work_struct *work)
cb->cb_msg.rpc_cred = clp->cl_cb_cred;
flags = clp->cl_minorversion ? RPC_TASK_NOCONNECT : RPC_TASK_SOFTCONN;
- rpc_call_async(clnt, &cb->cb_msg, RPC_TASK_SOFT | flags,
- cb->cb_ops ? &nfsd4_cb_ops : &nfsd4_cb_probe_ops, cb);
+ ret = rpc_call_async(clnt, &cb->cb_msg, RPC_TASK_SOFT | flags,
+ cb->cb_ops ? &nfsd4_cb_ops : &nfsd4_cb_probe_ops, cb);
+ if (ret != 0) {
+ set_bit(NFSD4_CALLBACK_REQUEUE, &cb->cb_flags);
+ nfsd4_queue_cb(cb);
+ }
}
void nfsd4_init_cb(struct nfsd4_callback *cb, struct nfs4_client *clp,