Intravision/reactos
1
0
Fork 0
mirror of https://github.com/reactos/reactos.git synced 2025-04-05 21:21:33 +00:00
Code Issues Projects Releases Packages Wiki Activity

[NTOS:MM] Fix locking when paging out

Browse source
This commit is contained in:
Jérôme Gardou 2021-01-22 09:30:55 +01:00
parent d8cdb89fb0
commit d932bdb950
1 changed files with 13 additions and 7 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

20
ntoskrnl/mm/rmap.c
View file

@ -70,7 +70,7 @@ MmPageOutPhysicalAddress(PFN_NUMBER Page)
if (entry == NULL)
{
MiReleasePfnLock(OldIrql);
return STATUS_UNSUCCESSFUL;
goto WriteSegment;
}
Process = entry->Process;
@ -176,6 +176,12 @@ MmPageOutPhysicalAddress(PFN_NUMBER Page)
MmSetDirtyPage(Process, Address);
MmUnlockAddressSpace(AddressSpace);
if (Address < MmSystemRangeStart)
{
ExReleaseRundownProtection(&Process->RundownProtect);
ObDereferenceObject(Process);
}
return STATUS_UNSUCCESSFUL;
}
}
@ -199,6 +205,11 @@ MmPageOutPhysicalAddress(PFN_NUMBER Page)
MmSetDirtyPage(Process, Address);
MmUnlockAddressSpace(AddressSpace);
if (Address < MmSystemRangeStart)
{
ExReleaseRundownProtection(&Process->RundownProtect);
ObDereferenceObject(Process);
}
return STATUS_UNSUCCESSFUL;
}
}
@ -256,12 +267,7 @@ MmPageOutPhysicalAddress(PFN_NUMBER Page)
KeBugCheck(MEMORY_MANAGEMENT);
}
if (Address < MmSystemRangeStart)
{
ExReleaseRundownProtection(&Process->RundownProtect);
ObDereferenceObject(Process);
}
WriteSegment:
/* Now write this page to file, if needed */
Segment = MmGetSectionAssociation(Page, &SegmentOffset);
if (Segment)