[process] Make it safe to call process_add() multiple times
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@ -37,11 +37,18 @@ static LIST_HEAD ( run_queue );
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* Add process to process list
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*
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* @v process Process
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*
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* It is safe to call process_add() multiple times; further calls will
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* have no effect.
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*/
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void process_add ( struct process *process ) {
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DBGC ( process, "PROCESS %p starting\n", process );
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ref_get ( process->refcnt );
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list_add_tail ( &process->list, &run_queue );
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if ( list_empty ( &process->list ) ) {
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DBGC ( process, "PROCESS %p starting\n", process );
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ref_get ( process->refcnt );
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list_add_tail ( &process->list, &run_queue );
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} else {
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DBGC ( process, "PROCESS %p already started\n", process );
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}
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}
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/**
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@ -47,6 +47,7 @@ static inline __attribute__ (( always_inline )) void
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process_init_stopped ( struct process *process,
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void ( * step ) ( struct process *process ),
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struct refcnt *refcnt ) {
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INIT_LIST_HEAD ( &process->list );
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process->step = step;
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process->refcnt = refcnt;
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}
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@ -802,6 +802,7 @@ static void ib_step ( struct process *process __unused ) {
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/** Infiniband event queue process */
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struct process ib_process __permanent_process = {
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.list = LIST_HEAD_INIT ( ib_process.list ),
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.step = ib_step,
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};
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@ -625,5 +625,6 @@ static void net_step ( struct process *process __unused ) {
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/** Networking stack process */
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struct process net_process __permanent_process = {
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.list = LIST_HEAD_INIT ( net_process.list ),
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.step = net_step,
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};
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@ -187,5 +187,6 @@ static void retry_step ( struct process *process __unused ) {
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/** Retry timer process */
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struct process retry_process __permanent_process = {
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.list = LIST_HEAD_INIT ( retry_process.list ),
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.step = retry_step,
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};
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