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SUNRPC: Clean up tk_pid allocation and make it lockless 

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Trond Myklebust 2007-06-16 14:17:01 -04:00
parent 4bef61ff75
commit c44fe70553
1 changed files with 15 additions and 7 deletions
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22
net/sunrpc/sched.c
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@ -25,7 +25,6 @@
#ifdef RPC_DEBUG
#define RPCDBG_FACILITY RPCDBG_SCHED
#define RPC_TASK_MAGIC_ID 0xf00baa
static int rpc_task_id;
#endif
/*
@ -268,17 +267,26 @@ static int rpc_wait_bit_interruptible(void *word)
return 0;
}
#ifdef RPC_DEBUG
static void rpc_task_set_debuginfo(struct rpc_task *task)
{
static atomic_t rpc_pid;
task->tk_magic = RPC_TASK_MAGIC_ID;
task->tk_pid = atomic_inc_return(&rpc_pid);
}
#else
static inline void rpc_task_set_debuginfo(struct rpc_task *task)
{
}
#endif
static void rpc_set_active(struct rpc_task *task)
{
struct rpc_clnt *clnt;
if (test_and_set_bit(RPC_TASK_ACTIVE, &task->tk_runstate) != 0)
return;
#ifdef RPC_DEBUG
task->tk_magic = RPC_TASK_MAGIC_ID;
spin_lock(&rpc_sched_lock);
task->tk_pid = rpc_task_id++;
spin_unlock(&rpc_sched_lock);
#endif
rpc_task_set_debuginfo(task);
/* Add to global list of all tasks */
clnt = task->tk_client;
if (clnt != NULL) {