about mmap with MAP_SHARED in jffs2

Cai Qiang caiqiang at ustc.edu
Fri Nov 18 01:35:45 EST 2005

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Hi,
    Currently jffs2 not support mmap with MAP_SHARED. Is it possible to implement it? What's the drawback? If it's possible, what shoould we do? I changed .mmap from generic_file_readonly_mmap to generic_file_mmap 
but system crash when I write to mmaped buffer and unmap. Do I need a special writepage?

Best regards!

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