Messages in this thread | | | Date | Tue, 21 Jul 2015 16:31:12 +0200 (CEST) | From | Thomas Gleixner <> | Subject | Re: [PATCH RESEND 2/3] mm, x86: Remove region_is_ram() call from ioremap |
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On Thu, 16 Jul 2015, Toshi Kani wrote: > Note, removing the call to region_is_ram() is also necessary to > fix bugs in region_is_ram(). walk_system_ram_range() requires > RAM ranges be page-aligned in the iomem_resource table to work > properly. This restriction has allowed multiple ioremaps to RAM > (setup_data) which are page-unaligned. Using fixed region_is_ram() > will cause these callers to start failing.
Which callers?
Thanks,
tglx
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