kmap problem
Hi All,
I am writing a kernel module. And I am facing a problem relate to Kmap.
I am retriving Kernel Virtual Address for a specific Page using kmap() and then after some time I am doing kunmap().
Now, I know that kmap can give A LIMITED NUMBER OF MAPPINGS and so such mapping should NOT be held longer. But in my case it is absolutely necessary to hold more than 1024 such mappings.
The same code is NOT working on 2.6.10 kernel and IS WORKING on 2.6.18 kernel. The system is same and there are two kernels that I am playing with.
My only question is what is so changed in 2.6.18 kernel from 2.6.10 that the same code is working and evidently kmap can hold more than 1024 virtual address mappings.
The other thing I would like to know if there is ANY generic way to handle this situation in 2.6.10 kernel.
Thanks,
Viral
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