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Dear folks,

is there a posibility for a filingsystem to dictate the buffer sizes passed 
to the vop_strategy() vfs op or a minimum size by adjusting parameters in 
the vop_read/vop_write interface to UBC? A small scout on msdosfs shows 
various buffer sizes ranging from say 8kb to 64kb are passed though allways 
a power of 2.

For UDF the most common sector size is 2kb so all buffers seen passed are 
multiples of 2kb since all powers of 2 are thus also devidable so problems 
are less likely to occure in real-life though i wonder if a buffer of say 
512 bytes can be passed wich would force a RMW cycle.

Thoughts/ideas/code pointers?

Cheers,
Reinoud

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