Intravision/reactos
1
0
Fork 0
mirror of https://github.com/reactos/reactos.git synced 2025-04-28 01:11:35 +00:00
Code Issues Projects Releases Packages Wiki Activity

Page overlapping MDLs have been fixed

Browse source 
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
Show stats Download patch file Download diff file Expand all files Collapse all files

8
reactos/ntoskrnl/mm/mdl.c
View file

@ -108,6 +108,7 @@ VOID MmProbeAndLockPages(PMDL Mdl, KPROCESSOR_MODE AccessMode,
ULONG* mdl_pages=NULL; ULONG* mdl_pages=NULL;
int i; int i;
MEMORY_AREA* marea; MEMORY_AREA* marea;
PVOID Address;
DPRINT("MmProbeAndLockPages(Mdl %x)\n",Mdl); DPRINT("MmProbeAndLockPages(Mdl %x)\n",Mdl);
DPRINT("StartVa %x\n",Mdl->StartVa); DPRINT("StartVa %x\n",Mdl->StartVa);
@ -166,12 +167,11 @@ VOID MmProbeAndLockPages(PMDL Mdl, KPROCESSOR_MODE AccessMode,
*/ */
mdl_pages = (ULONG *)(Mdl + 1); 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) Address = Mdl->StartVa + (i*PAGESIZE);
+(i*PAGESIZE))).LowPart; mdl_pages[i]=MmGetPhysicalAddress(Address).LowPart;
DPRINT("mdl_pages[i] %x\n",mdl_pages[i]); DPRINT("mdl_pages[i] %x\n",mdl_pages[i]);
DPRINT("&mdl_pages[i] %x\n",&mdl_pages[i]);
} }
} }