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mcctrl_wakeup_desc: refcount and fix timeouts

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Change-Id: I14b34f031ffb10bfac6cef07d81f53a8dece767b
This commit is contained in:
Balazs Gerofi
2021-03-16 09:41:29 +09:00
committed by Masamichi Takagi
parent d5c5023bf8
commit 09173d353c
8 changed files with 200 additions and 92 deletions
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14
executer/kernel/mcctrl/syscall.c
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@ -495,8 +495,6 @@ int remote_page_fault(struct mcctrl_usrdata *usrdata, void *fault_addr,
struct ikc_scd_packet *packet)
{
int error;
struct mcctrl_wakeup_desc *desc;
int do_frees = 1;
dprintk("%s: tid: %d, fault_addr: %p, reason: %lu\n",
__FUNCTION__, task_pid_vnr(current), fault_addr, (unsigned long)reason);
@ -506,19 +504,9 @@ int remote_page_fault(struct mcctrl_usrdata *usrdata, void *fault_addr,
packet->fault_address = (unsigned long)fault_addr;
packet->fault_reason = reason;
/* we need to alloc desc ourselves because GFP_ATOMIC */
retry_alloc:
desc = kmalloc(sizeof(*desc), GFP_ATOMIC);
if (!desc) {
pr_warn("WARNING: coudln't alloc remote page fault wait desc, retrying..\n");
goto retry_alloc;
}
/* packet->target_cpu was set in rus_vm_fault if a thread was found */
error = mcctrl_ikc_send_wait(usrdata->os, packet->target_cpu, packet,
0, desc, &do_frees, 0);
if (do_frees)
kfree(desc);
0, NULL, NULL, 0);
if (error < 0) {
pr_warn("%s: WARNING: failed to request remote page fault PID %d: %d\n",
__func__, packet->pid, error);