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| author | Trond Myklebust <Trond.Myklebust@netapp.com> | 2007-07-14 15:40:00 -0400 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2008-01-30 02:05:30 -0500 |
| commit | 3ff7576ddac06c3d07089e241b40826d24bbf1ac (patch) | |
| tree | 7f5998434b7d0dd1f08ff7ee65c93fab4861a6d3 /include/linux/sunrpc/sched.h | |
| parent | c970aa85e71bd581726c42df843f6f129db275ac (diff) | |
| download | linux-3ff7576ddac06c3d07089e241b40826d24bbf1ac.tar.gz | |
SUNRPC: Clean up the initialisation of priority queue scheduling info.
We want the default scheduling priority (priority == 0) to remain
RPC_PRIORITY_NORMAL.
Also ensure that the priority wait queue scheduling is per process id
instead of sometimes being per thread, and sometimes being per inode.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'include/linux/sunrpc/sched.h')
| -rw-r--r-- | include/linux/sunrpc/sched.h | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/include/linux/sunrpc/sched.h b/include/linux/sunrpc/sched.h index d974421d76476..c9444fdc23ac6 100644 --- a/include/linux/sunrpc/sched.h +++ b/include/linux/sunrpc/sched.h @@ -56,8 +56,6 @@ struct rpc_task { __u8 tk_garb_retry; __u8 tk_cred_retry; - unsigned long tk_cookie; /* Cookie for batching tasks */ - /* * timeout_fn to be executed by timer bottom half * callback to be executed after waking up @@ -78,7 +76,6 @@ struct rpc_task { struct timer_list tk_timer; /* kernel timer */ unsigned long tk_timeout; /* timeout for rpc_sleep() */ unsigned short tk_flags; /* misc flags */ - unsigned char tk_priority : 2;/* Task priority */ unsigned long tk_runstate; /* Task run status */ struct workqueue_struct *tk_workqueue; /* Normally rpciod, but could * be any workqueue @@ -94,6 +91,9 @@ struct rpc_task { unsigned long tk_start; /* RPC task init timestamp */ long tk_rtt; /* round-trip time (jiffies) */ + pid_t tk_owner; /* Process id for batching tasks */ + unsigned char tk_priority : 2;/* Task priority */ + #ifdef RPC_DEBUG unsigned short tk_pid; /* debugging aid */ #endif @@ -123,6 +123,7 @@ struct rpc_task_setup { const struct rpc_call_ops *callback_ops; void *callback_data; unsigned short flags; + signed char priority; }; /* @@ -187,10 +188,10 @@ struct rpc_task_setup { * Note: if you change these, you must also change * the task initialization definitions below. */ -#define RPC_PRIORITY_LOW 0 -#define RPC_PRIORITY_NORMAL 1 -#define RPC_PRIORITY_HIGH 2 -#define RPC_NR_PRIORITY (RPC_PRIORITY_HIGH+1) +#define RPC_PRIORITY_LOW (-1) +#define RPC_PRIORITY_NORMAL (0) +#define RPC_PRIORITY_HIGH (1) +#define RPC_NR_PRIORITY (1 + RPC_PRIORITY_HIGH - RPC_PRIORITY_LOW) /* * RPC synchronization objects @@ -198,7 +199,7 @@ struct rpc_task_setup { struct rpc_wait_queue { spinlock_t lock; struct list_head tasks[RPC_NR_PRIORITY]; /* task queue for each priority level */ - unsigned long cookie; /* cookie of last task serviced */ + pid_t owner; /* process id of last task serviced */ unsigned char maxpriority; /* maximum priority (0 if queue is not a priority queue) */ unsigned char priority; /* current priority */ unsigned char count; /* # task groups remaining serviced so far */ |