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mcctrl: move procfs TID processing into dedicated work queue

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This commit is contained in:
Balazs Gerofi
2016-08-04 15:22:40 +09:00
parent 6aae35cb3d
commit 76981bcc18
3 changed files with 53 additions and 4 deletions
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5
executer/kernel/mcctrl/ikc.c
View File

@ -88,11 +88,8 @@ static int syscall_packet_handler(struct ihk_ikc_channel_desc *c,
break;
case SCD_MSG_PROCFS_TID_CREATE:
add_tid_entry(ihk_host_os_get_index(__os), pisp->pid, pisp->arg);
break;
case SCD_MSG_PROCFS_TID_DELETE:
delete_tid_entry(ihk_host_os_get_index(__os), pisp->pid, pisp->arg);
return procfsm_packet_handler(__os, pisp->msg, pisp->pid, pisp->arg);
break;
case SCD_MSG_GET_VDSO_INFO:

1
executer/kernel/mcctrl/mcctrl.h
View File

@ -301,6 +301,7 @@ struct procfs_file {
};
void procfs_answer(unsigned int arg, int err);
int procfsm_packet_handler(void *os, int msg, int pid, unsigned long arg);
void add_tid_entry(int osnum, int pid, int tid);
void add_pid_entry(int osnum, int pid);
void delete_tid_entry(int osnum, int pid, int tid);

51
executer/kernel/mcctrl/procfs.c
View File

@ -713,6 +713,57 @@ mckernel_procfs_lseek(struct file *file, loff_t offset, int orig)
return file->f_pos;
}
struct procfs_work {
void *os;
int msg;
int pid;
unsigned long arg;
struct work_struct work;
};
static void procfsm_work_main(struct work_struct *work0)
{
struct procfs_work *work = container_of(work0, struct procfs_work, work);
switch (work->msg) {
case SCD_MSG_PROCFS_TID_CREATE:
add_tid_entry(ihk_host_os_get_index(work->os), work->pid, work->arg);
break;
case SCD_MSG_PROCFS_TID_DELETE:
delete_tid_entry(ihk_host_os_get_index(work->os), work->pid, work->arg);
break;
default:
printk("%s: unknown work: msg: %d, pid: %d, arg: %lu)\n",
__FUNCTION__, work->msg, work->pid, work->arg);
break;
}
kfree(work);
return;
}
int procfsm_packet_handler(void *os, int msg, int pid, unsigned long arg)
{
struct procfs_work *work = NULL;
work = kzalloc(sizeof(*work), GFP_ATOMIC);
if (!work) {
printk("%s: kzalloc failed\n", __FUNCTION__);
return -1;
}
work->os = os;
work->msg = msg;
work->pid = pid;
work->arg = arg;
INIT_WORK(&work->work, &procfsm_work_main);
schedule_work(&work->work);
return 0;
}
static const struct file_operations mckernel_forward_ro = {
.llseek = mckernel_procfs_lseek,
.read = mckernel_procfs_read,