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authorTrond Myklebust <Trond.Myklebust@netapp.com>2012-11-01 15:19:46 -0400
committerTrond Myklebust <Trond.Myklebust@netapp.com>2012-12-06 00:30:49 +0100
commit7b939a3f44293516c4225f640e8c4b9200beeabc (patch)
tree199438b7f5fb5792d72365c06414fde7e515c5d3 /fs/nfs
parentfd0c09537a8494e9dccf3856b90058e1f97f1d62 (diff)
NFSv4.1: Clean up nfs41_setup_sequence
Move all the sleep-and-exit cases into a single section of code. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/nfs')
-rw-r--r--fs/nfs/nfs4proc.c16
1 files changed, 7 insertions, 9 deletions
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 4aaaa3ba308..87525eb60bd 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -523,18 +523,14 @@ int nfs41_setup_sequence(struct nfs4_session *session,
if (test_bit(NFS4_SESSION_DRAINING, &session->session_state) &&
!rpc_task_has_priority(task, RPC_PRIORITY_PRIVILEGED)) {
/* The state manager will wait until the slot table is empty */
- rpc_sleep_on(&tbl->slot_tbl_waitq, task, NULL);
- spin_unlock(&tbl->slot_tbl_lock);
dprintk("%s session is draining\n", __func__);
- return -EAGAIN;
+ goto out_sleep;
}
if (!rpc_queue_empty(&tbl->slot_tbl_waitq) &&
!rpc_task_has_priority(task, RPC_PRIORITY_PRIVILEGED)) {
- rpc_sleep_on(&tbl->slot_tbl_waitq, task, NULL);
- spin_unlock(&tbl->slot_tbl_lock);
dprintk("%s enforce FIFO order\n", __func__);
- return -EAGAIN;
+ goto out_sleep;
}
slot = nfs4_alloc_slot(tbl);
@@ -542,10 +538,8 @@ int nfs41_setup_sequence(struct nfs4_session *session,
/* If out of memory, try again in 1/4 second */
if (slot == ERR_PTR(-ENOMEM))
task->tk_timeout = HZ >> 2;
- rpc_sleep_on(&tbl->slot_tbl_waitq, task, NULL);
- spin_unlock(&tbl->slot_tbl_lock);
dprintk("<-- %s: no free slots\n", __func__);
- return -EAGAIN;
+ goto out_sleep;
}
spin_unlock(&tbl->slot_tbl_lock);
@@ -566,6 +560,10 @@ int nfs41_setup_sequence(struct nfs4_session *session,
out_success:
rpc_call_start(task);
return 0;
+out_sleep:
+ rpc_sleep_on(&tbl->slot_tbl_waitq, task, NULL);
+ spin_unlock(&tbl->slot_tbl_lock);
+ return -EAGAIN;
}
EXPORT_SYMBOL_GPL(nfs41_setup_sequence);