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SubjectRe: Purging the Buffer Cache
Al Peat wrote:
> Is there any way to completely purge the buffer
> cache -- not just the write requests (ala 'sync' or
> 'update'), but the whole thing? Can I just call
> invalidate_buffers() or destroy_buffers()?
> I know, why in the world would a person do such a
> thing? Research. It'd be easier for me to write a
> little program or add it to a module than wait for a
> reboot each time I need a clean buffer cache.

What about the ioctl BLKFLSBUF ?
If you are running a SuSE distrib there is already a tool called flushb
that does what you want. If not, you can download the simple tool from


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clustering & security the linux architects
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