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authorTrond Myklebust <trondmy@gmail.com>2019-04-07 13:58:49 -0400
committerAnna Schumaker <Anna.Schumaker@Netapp.com>2019-04-25 14:18:13 -0400
commit6b2e6856275d7b8d0acbf06d2e8da72e1a6bc857 (patch)
treec16d3740c787caef985e09c1069591f3722a847f /fs/nfs/nfs4proc.c
parent8357a9b60fe7500699a9dec540ca1c48df3cb455 (diff)
downloadlinux-6b2e6856275d7b8d0acbf06d2e8da72e1a6bc857.tar.bz2
SUNRPC: Add function rpc_sleep_on_timeout()
Clean up the RPC task sleep interfaces by replacing the task->tk_timeout 'hidden parameter' to rpc_sleep_on() with a new function that takes an absolute timeout. Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Diffstat (limited to 'fs/nfs/nfs4proc.c')
-rw-r--r--fs/nfs/nfs4proc.c18
1 files changed, 12 insertions, 6 deletions
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 222eccd8a715..96b988689f0e 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -978,10 +978,8 @@ int nfs4_setup_sequence(struct nfs_client *client,
if (res->sr_slot != NULL)
goto out_start;
- if (session) {
+ if (session)
tbl = &session->fc_slot_table;
- task->tk_timeout = 0;
- }
spin_lock(&tbl->slot_tbl_lock);
/* The state manager will wait until the slot table is empty */
@@ -990,9 +988,8 @@ int nfs4_setup_sequence(struct nfs_client *client,
slot = nfs4_alloc_slot(tbl);
if (IS_ERR(slot)) {
- /* Try again in 1/4 second */
if (slot == ERR_PTR(-ENOMEM))
- task->tk_timeout = HZ >> 2;
+ goto out_sleep_timeout;
goto out_sleep;
}
spin_unlock(&tbl->slot_tbl_lock);
@@ -1004,7 +1001,16 @@ out_start:
nfs41_sequence_res_init(res);
rpc_call_start(task);
return 0;
-
+out_sleep_timeout:
+ /* Try again in 1/4 second */
+ if (args->sa_privileged)
+ rpc_sleep_on_priority_timeout(&tbl->slot_tbl_waitq, task,
+ jiffies + (HZ >> 2), RPC_PRIORITY_PRIVILEGED);
+ else
+ rpc_sleep_on_timeout(&tbl->slot_tbl_waitq, task,
+ NULL, jiffies + (HZ >> 2));
+ spin_unlock(&tbl->slot_tbl_lock);
+ return -EAGAIN;
out_sleep:
if (args->sa_privileged)
rpc_sleep_on_priority(&tbl->slot_tbl_waitq, task,