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Free affinity maps on allocation failure and remove redundant idle process affinity loop
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This commit is contained in:
Aiken Harris
2026-06-10 14:08:07 +02:00
parent 429e4ef6f1
commit c57aa98923
5 changed files with 36 additions and 18 deletions
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24
xtoskrnl/ke/kprocess.cc
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@@ -53,17 +53,17 @@ KE::KProcess::GetInitialProcess(VOID)
*/
XTAPI
XTSTATUS
KE::KProcess::InitializeIdleProcess(IN OUT PKPROCESS Process,
KE::KProcess::InitializeIdleProcess(IN OUT PKPROCESS IdleProcess,
IN PULONG_PTR DirectoryTable)
{
ULONG Cpus, Index;
XTSTATUS Status;
ULONG Cpus;
/* Get the number of natively installed CPUs */
Cpus = KE::Processor::GetInstalledCpus();
/* Allocate and initialize the baseline affinity map for the process */
Status = KE::Affinity::CreateAffinityMap(Cpus, &Process->Affinity);
Status = KE::Affinity::CreateAffinityMap(Cpus, &IdleProcess->Affinity);
if(Status != STATUS_SUCCESS)
{
/* Affinity map allocation failed, return status code */
@@ -71,26 +71,20 @@ KE::KProcess::InitializeIdleProcess(IN OUT PKPROCESS Process,
}
/* Allocate and initialize the dynamic map used to track actively running CPUs */
Status = KE::Affinity::CreateAffinityMap(Cpus, &Process->ActiveProcessors);
Status = KE::Affinity::CreateAffinityMap(Cpus, &IdleProcess->ActiveProcessors);
if(Status != STATUS_SUCCESS)
{
/* Affinity map allocation failed, return status code */
/* Affinity map allocation failed, free affinity map and return status code */
KE::Affinity::DestroyAffinityMap(IdleProcess->Affinity);
return Status;
}
/* Set Idle Process affinity */
KE::Affinity::SetAllProcessorsAffinity(Process->Affinity);
KE::Affinity::SetAllProcessorsAffinity(IdleProcess->Affinity);
/* Initialize Idle process */
KE::KProcess::InitializeProcess(Process, 0, NULLPTR, DirectoryTable, FALSE);
Process->Quantum = MAXCHAR;
/* Populate the global Idle Process affinity */
for(Index = 0; Index < Cpus; Index++)
{
/* Include every installed hardware thread in the base affinity map */
KE::Affinity::SetProcessorAffinity(Process->Affinity, Index);
}
KE::KProcess::InitializeProcess(IdleProcess, 0, NULLPTR, DirectoryTable, FALSE);
IdleProcess->Quantum = MAXCHAR;
/* Return success */
return STATUS_SUCCESS;