Greg KH wrote:
That code is not in the main kernel.org kernel tree at all, so it is not a valid example.
Fair enough.
Why not state what you want to accomplish instead? Also, a pointer to your code would be most helpful.
Like the IB driver, I'm trying to lock user pages in memory.
To be honest, I inherited the driver, so I haven't validated this claim myself, but I was told the reason we need to use sys_mlock() to lock the pages is because the normal kernel method (which I can't recall at the moment) doesn't work. It locks the pages, but the lock isn't guaranteed. There is some condition where the kernel will swap-out the page, despite the lock.
-- Timur Tabi Staff Software Engineer timur.tabi@xxxxxxxxxxx
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