Re: Memory region check in drivers/pcmcia/rsrc_mgr.c

From: Jeff Garzik (
Date: Sat Jul 07 2001 - 06:51:11 EST

Paul Mackerras wrote:
> In drivers/pcmcia/rsrc_mgr.c, there is code that check whether a given
> range of PCI memory addresses are available for the pcmcia code to
> use. This code uses a macro, check_mem_resource(), to check whether a
> particular region is available, defined like this:
> #define check_mem_resource(b,n) check_resource(&iomem_resource, (b), (n))
> I think that
> we should be using check_mem_region instead,

AFAICS you are correct.

check_xxx is deprecated, though. Is it possible to move a request_xxx
earlier in the logic?

check_xxx is inherently racy.

Jeff Garzik      | A recent study has shown that too much soup
Building 1024    | can cause malaise in laboratory mice.
MandrakeSoft     |
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