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Page overlapping MDLs have been fixed

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svn path=/trunk/; revision=47
This commit is contained in:
Rex Jolliff 1998-09-20 02:21:36 +00:00
parent 9a55f0f7ed
commit cb0fe70650
1 changed files with 4 additions and 4 deletions
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8
reactos/ntoskrnl/mm/mdl.c
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@ -108,6 +108,7 @@ VOID MmProbeAndLockPages(PMDL Mdl, KPROCESSOR_MODE AccessMode,
ULONG* mdl_pages=NULL;
int i;
MEMORY_AREA* marea;
PVOID Address;
DPRINT("MmProbeAndLockPages(Mdl %x)\n",Mdl);
DPRINT("StartVa %x\n",Mdl->StartVa);
@ -166,12 +167,11 @@ VOID MmProbeAndLockPages(PMDL Mdl, KPROCESSOR_MODE AccessMode,
*/
mdl_pages = (ULONG *)(Mdl + 1);
for (i=0;i<(PAGE_ROUND_UP(Mdl->ByteCount)/PAGESIZE);i++)
for (i=0;i<(PAGE_ROUND_UP(Mdl->ByteOffset+Mdl->ByteCount)/PAGESIZE);i++)
{
mdl_pages[i]=MmGetPhysicalAddress((PVOID)(PAGE_ROUND_DOWN(Mdl->StartVa)
+(i*PAGESIZE))).LowPart;
Address = Mdl->StartVa + (i*PAGESIZE);
mdl_pages[i]=MmGetPhysicalAddress(Address).LowPart;
DPRINT("mdl_pages[i] %x\n",mdl_pages[i]);
DPRINT("&mdl_pages[i] %x\n",&mdl_pages[i]);
}
}