How to disable Cache

NTFSD
1

Hi,

Can anybody tell me how to disable caching in my
file system driver?

ChildEBP RetAddr Args to Child

STACK_TEXT:
f9023e94 8010a465 80720a08 00000000 80105833 nt!ExFreePoolWithTag+0x27b
f9023ea0 80105833 80720a08 f9023ef8 80720a4c nt!ExFreePool+0xb
f9023ecc 8010393d 00000001 80706288 00000000 nt!CcDeleteSharedCacheMap+0x1cd
f9023ef8 8010850b 80706288 00000000 00000001 nt!CcWriteBehind+0x2ef
f9023f34 8010b0a7 80706288 f9023f7c 00000000 nt!CcWorkerThread+0xb1
f9023f4c 801375f8 00000000 00000000 00000000 nt!ExpWorkerThread+0x73
f9023f7c 801428f6 8010b034 00000000 00000000 nt!PspSystemThreadStartup+0x54
00000000 00000000 00000000 00000000 00000000 nt!KiThreadStartup+0x16

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2

Don’t call CcInitializeCacheMap. If you don’t initialize cache maps, you
won’t have any caching.

If you don’t want any VM support, you need to omit the SectionObjectPointers
structure storage in the FileObject. Be warned, though, that this will
break some applications (notably, anything that relies upon memory mapped
file access). This includes data file access using Notepad (Windows 2000
and more recent) and local executable files.

Regards,

Tony

Tony Mason
Consulting Partner
OSR Open Systems Resources, Inc.
http://www.osr.com http:

-----Original Message-----
From: Lijun Wang [mailto:xxxxx@yahoo.com]
Sent: Thursday, April 18, 2002 11:34 PM
To: File Systems Developers
Subject: [ntfsd] How to disable Cache

Hi,

Can anybody tell me how to disable caching in my
file system driver?

# ChildEBP RetAddr Args to Child
STACK_TEXT:
f9023e94 8010a465 80720a08 00000000 80105833 nt!ExFreePoolWithTag+0x27b
f9023ea0 80105833 80720a08 f9023ef8 80720a4c nt!ExFreePool+0xb
f9023ecc 8010393d 00000001 80706288 00000000 nt!CcDeleteSharedCacheMap+0x1cd

f9023ef8 8010850b 80706288 00000000 00000001 nt!CcWriteBehind+0x2ef
f9023f34 8010b0a7 80706288 f9023f7c 00000000 nt!CcWorkerThread+0xb1
f9023f4c 801375f8 00000000 00000000 00000000 nt!ExpWorkerThread+0x73
f9023f7c 801428f6 8010b034 00000000 00000000 nt!PspSystemThreadStartup+0x54
00000000 00000000 00000000 00000000 00000000 nt!KiThreadStartup+0x16

_____

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