Re: vmalloc() in interrupt context

[Alexander Viro]

On Tue, 27 Jun 2000, Amit Dror wrote:

> Hi,
> 
> I have a kernel driver that needs to dynamically allocate large amounts of
> memory in interrupt context.
> 
> I can't use kmalloc(GFP_ATOMIC) or get_free_pages(GFP_ATOMIC) since they are
> limited to 131056 bytes.

Let me get it straight: you want atomic allocation of what, at least 
256Kb? In interrupt context, of all places? Wow.

> I can't allocate the memory at the device initialization because the driver
> is a loadable module and is not compiled into the kernel.

Oh, yes, you can - module_init() is your friend.