Aleksey Bragin 37f8eef287 - Add more MDL flags.
- Reformat MDL implementation (mdlsup.c) to make it readable, and add comments.
- Add a couple dozen assertions to validate that MDL flags, state and addresses.
- Use ADDRESS_AND_SIZE_TO_SPAN_PAGES macro for nice MDL calculations.
- Set Mdl->Process only when required, and set/unset various MDL flags which were being ignored/incorrectly manipulated.
- Keep track of Process->NumberOfLockedPages during MDL lock/unlock.
- Don't return the base address of the MDL allocation when mapping locked pages - MDLs have a byte offset which was being ignored.
- Fix incorrect usage of MDLs found in the kernel (thanks to the new assertions).
- Split kernel vs. user mode MDL requests in a much more organized and optimized fashion.
- Fix a number of smaller bugs throughout the code.

svn path=/trunk/; revision=33139
2008-04-25 07:55:12 +00:00
2008-03-08 11:08:52 +00:00
2008-04-25 07:55:12 +00:00
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