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mcctrl: refcount per-process data to avoid corrupted syscall request lists

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This commit is contained in:
Balazs Gerofi
2016-12-23 09:54:15 +09:00
parent 972d14611a
commit 4667136a4c
3 changed files with 118 additions and 83 deletions
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5
executer/kernel/mcctrl/mcctrl.h
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@ -187,6 +187,7 @@ struct mcctrl_per_thread_data {
#define MCCTRL_PER_THREAD_DATA_HASH_MASK (MCCTRL_PER_THREAD_DATA_HASH_SIZE - 1)
struct mcctrl_per_proc_data {
struct mcctrl_usrdata *ud;
struct list_head hash;
int pid;
unsigned long rpgtable; /* per process, not per OS */
@ -201,6 +202,7 @@ struct mcctrl_per_proc_data {
rwlock_t per_thread_data_hash_lock[MCCTRL_PER_THREAD_DATA_HASH_SIZE];
cpumask_t cpu_set;
int ikc_target_cpu;
atomic_t refcount;
};
struct sysfsm_req {
@ -315,8 +317,9 @@ int __do_in_kernel_syscall(ihk_os_t os, struct ikc_scd_packet *packet);
int mcctrl_add_per_proc_data(struct mcctrl_usrdata *ud, int pid,
struct mcctrl_per_proc_data *ppd);
int mcctrl_delete_per_proc_data(struct mcctrl_usrdata *ud, int pid);
inline struct mcctrl_per_proc_data *mcctrl_get_per_proc_data(
struct mcctrl_per_proc_data *mcctrl_get_per_proc_data(
struct mcctrl_usrdata *ud, int pid);
void mcctrl_put_per_proc_data(struct mcctrl_per_proc_data *ppd);
int mcctrl_add_per_thread_data(struct mcctrl_per_proc_data* ppd,
struct task_struct *task, void *data);