Messages in this thread | | | Date | Sun, 26 Jun 2005 18:41:34 +1000 | From | Nick Piggin <> | Subject | Re: [patch][rfc] 5/5: core remove PageReserved |
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Andrew Morton wrote: > William Lee Irwin III <wli@holomorphy.com> wrote:
>> Mutatis mutandis for my SCSI tape drive. > >
OK, for the VM_RESERVED case, it looks like it won't be much of a problem because get_user_pages faults on VM_IO regions (which is already set in remap_pfn_range which is used by mem.c and most drivers). So this code will simply not encounter VM_RESERVED regions - well obviously, get_user_pages should be made to explicitly check for VM_RESERVED too, but the point being that introducing such a check will not overly restrict drivers.
[snip SetPageDirty is wrong]
Not that this helps the existing bug...
-- SUSE Labs, Novell Inc.
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