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| author |   Trond Myklebust <trondmy@gmail.com> | 2019-04-07 13:58:50 -0400 |
|---|---|---|
| committer |   Anna Schumaker <Anna.Schumaker@Netapp.com> | 2019-04-25 14:18:13 -0400 |
| commit | 5efd1876e61fe61b61e2d056782027c11bcd0982 (patch) | |
| tree | 9afae17805a7fc06ecce13abc6c969e11fabaef9 /net/sunrpc/sched.c | |
| parent | SUNRPC: Add function rpc_sleep_on_timeout() (diff) | |
| download | linux-dev-5efd1876e61fe61b61e2d056782027c11bcd0982.tar.xz linux-dev-5efd1876e61fe61b61e2d056782027c11bcd0982.zip | |
SUNRPC: Fix up tracking of timeouts
Add a helper to ensure that debugfs and friends print out the
correct current task timeout value.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Diffstat (limited to 'net/sunrpc/sched.c')
| -rw-r--r-- | net/sunrpc/sched.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/net/sunrpc/sched.c b/net/sunrpc/sched.c index 7e0f7b83262f..40944c34a9e4 100644 --- a/net/sunrpc/sched.c +++ b/net/sunrpc/sched.c @@ -58,6 +58,20 @@ static struct rpc_wait_queue delay_queue; struct workqueue_struct *rpciod_workqueue __read_mostly; struct workqueue_struct *xprtiod_workqueue __read_mostly; +unsigned long +rpc_task_timeout(const struct rpc_task *task) +{ + unsigned long timeout = READ_ONCE(task->tk_timeout); + + if (timeout != 0) { + unsigned long now = jiffies; + if (time_before(now, timeout)) + return timeout - now; + } + return 0; +} +EXPORT_SYMBOL_GPL(rpc_task_timeout); + /* * Disable the timer for a given RPC task. Should be called with * queue->lock and bh_disabled in order to avoid races within |