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Again, uncovered in PPC compile.
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The vmalloc operation is split into two pieces: allocate the backing
pages and map them into the kernel page tabels for virtually contingous
access. (Same for vfree). A new set of interfaces, vmap & vunmap does
only the second part and thus allows mapping arbitray pages into
kernel virtual memory.
The vmalloc.c internals have been completly overhauled to support this,
but the exported interfaces are unchanged.
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Add change_page_attr to change page attributes for the kernel linear map.
Fix AGP driver to use change_page_attr for the AGP buffer.
Clean up AGP driver a bit (only tested on i386/VIA+AMD)
Change ioremap_nocache to use change_page_attr to avoid mappings with
conflicting caching attributes.
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The subject says it all...
Contrary to other proposed patches I realized that there is
no such thing as vmalloc_dma.
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This removes <linux/mm.h> from <linux/vmalloc.h>.
This then goes and fixes all of the files (x86 and PPC) which relied on
implicit includes which don't happen anymore. This also takes
<linux/kdev_t.h> out of fs/mpage.c and puts it into include/linux/bio.h
where it belongs since <linux/bio.h> references 'kdev_t' directly.
A quick summary of the of the added includes:
arch/i386/kernel/microcode.c: needs extern for num_physpages, in linux/mm.h
include/linux/spinlock.h: local_irq* is defined in <asm/system.h> but
this was never directly included.
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This moves the vmalloc wrappers from <linux/vmalloc.h> into mm/vmalloc.c.
Doing this will later allow us to remove <linux/mm.h> from <linux/vmalloc.h>,
along with some other #include fixups.
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Big bits first, I'll redo the smaller bits tomorrow after some sleep.
Same as last time, rediffed against pre5
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