Re: vmalloc() in interrupt context

[Alan Cox]

> once. If the memory is *really* dynamically allocated, you should
> probably use a bottom half, or whatever variation on that theme is in
> vogue these days. If you don't know what a bottom half is, you should
> be reading Alessandro Rubini's book "Linux Device Drivers".

You cannot vmalloc in a bottom half either. Vmalloc has to play with MMU
tables. Therefore vmalloc is relatively slow and has to be in task context