how is data cached in the memory when using loop device

[Newsmail <newsmail@satimex.tvnet.hu>]

hello everybody,
I have an aes128 partition, I use loop-aes. I would like to ask, that when 
linux caches the data prior to disk write, does it cache it in its 
encrypted form or in plain? because, many times when I have big disk i/o 
the machine seems to freeze for some seconds. I think that this is because 
bdflush begins to write out cached plain data from memory, and encrypts all 
in once, which results in this sort of freeze. is that right?
greg

ps: if anybody experienced this before, did he found any remedy for the problem?


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Linux-crypto:  cryptography in and on the Linux system
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