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svn path=/trunk/; revision=1714
This commit is contained in:
David Welch 2001-03-18 20:30:22 +00:00
parent f8ad495ac2
commit ffca6e4a0a
1 changed files with 9 additions and 6 deletions
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11
reactos/ntoskrnl/mm/freelist.c
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@ -549,17 +549,20 @@ MmAllocPage(SWAPENTRY SavedSwapEntry)
ULONG offset; ULONG offset;
PLIST_ENTRY ListEntry; PLIST_ENTRY ListEntry;
PPHYSICAL_PAGE PageDescriptor; PPHYSICAL_PAGE PageDescriptor;
KIRQL oldIrql;
DPRINT("MmAllocPage()\n"); DPRINT("MmAllocPage()\n");
ListEntry = ExInterlockedRemoveTailList(&FreePageListHead, KeAcquireSpinLock(&PageListLock, &oldIrql);
&PageListLock); if (IsListEmpty(&FreePageListHead))
DPRINT("ListEntry %x\n",ListEntry);
if (ListEntry == NULL)
{ {
DPRINT("MmAllocPage(): Out of memory\n"); DPRINT("MmAllocPage(): Out of memory\n");
KeReleaseSpinLock(&PageListLock, oldIrql);
return(NULL); return(NULL);
} }
ListEntry = RemoveTailList(&FreePageListHead);
KeReleaseSpinLock(&PageListLock, oldIrql);
PageDescriptor = CONTAINING_RECORD(ListEntry, PHYSICAL_PAGE, ListEntry); PageDescriptor = CONTAINING_RECORD(ListEntry, PHYSICAL_PAGE, ListEntry);
DPRINT("PageDescriptor %x\n",PageDescriptor); DPRINT("PageDescriptor %x\n",PageDescriptor);
if (PageDescriptor->Flags != MM_PHYSICAL_PAGE_FREE) if (PageDescriptor->Flags != MM_PHYSICAL_PAGE_FREE)