From 3ff3600e7eab16301e824293e8f49b9990bd4641 Mon Sep 17 00:00:00 2001 From: "J. Bruce Fields" Date: Mon, 10 Jan 2011 16:37:51 -0500 Subject: [PATCH] nfsd4: simplify nfsd4_cb_prepare Remove handling for a nonexistant case (status && !-EAGAIN). Signed-off-by: J. Bruce Fields --- fs/nfsd/nfs4callback.c | 26 ++++---------------------- 1 file changed, 4 insertions(+), 22 deletions(-) diff --git a/fs/nfsd/nfs4callback.c b/fs/nfsd/nfs4callback.c index fff96dc7704..69955e98e08 100644 --- a/fs/nfsd/nfs4callback.c +++ b/fs/nfsd/nfs4callback.c @@ -613,24 +613,14 @@ void nfsd4_change_callback(struct nfs4_client *clp, struct nfs4_cb_conn *conn) * If the slot is available, then mark it busy. Otherwise, set the * thread for sleeping on the callback RPC wait queue. */ -static int nfsd41_cb_setup_sequence(struct nfs4_client *clp, - struct rpc_task *task) +static bool nfsd41_cb_get_slot(struct nfs4_client *clp, struct rpc_task *task) { - u32 *ptr = (u32 *)clp->cl_cb_session->se_sessionid.data; - int status = 0; - - dprintk("%s: %u:%u:%u:%u\n", __func__, - ptr[0], ptr[1], ptr[2], ptr[3]); - if (test_and_set_bit(0, &clp->cl_cb_slot_busy) != 0) { rpc_sleep_on(&clp->cl_cb_waitq, task, NULL); dprintk("%s slot is busy\n", __func__); - status = -EAGAIN; - goto out; + return false; } -out: - dprintk("%s status=%d\n", __func__, status); - return status; + return true; } /* @@ -643,19 +633,11 @@ static void nfsd4_cb_prepare(struct rpc_task *task, void *calldata) struct nfs4_delegation *dp = container_of(cb, struct nfs4_delegation, dl_recall); struct nfs4_client *clp = dp->dl_client; u32 minorversion = clp->cl_minorversion; - int status = 0; cb->cb_minorversion = minorversion; if (minorversion) { - status = nfsd41_cb_setup_sequence(clp, task); - if (status) { - if (status != -EAGAIN) { - /* terminate rpc task */ - task->tk_status = status; - task->tk_action = NULL; - } + if (!nfsd41_cb_get_slot(clp, task)) return; - } } rpc_call_start(task); } -- 2.20.1