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Commit aa620abe authored by Badari Pulavarty's avatar Badari Pulavarty Committed by Paul Mackerras
Browse files

[POWERPC] Add remove_memory() for 64-bit powerpc 



Supply remove_memory() function for 64-bit powerpc.  This is still
not quite complete as it needs to do some more arch-specific stuff,
which will be added in a later patch.

Signed-off-by: default avatarBadari Pulavarty <pbadari@us.ibm.com>
Cc: Yasunori Goto <y-goto@jp.fujitsu.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarPaul Mackerras <paulus@samba.org>
parent 44621be4

arch/powerpc/mm/mem.c

+16 −0
Original line number Diff line number Diff line
@@ -129,6 +129,22 @@ int __devinit arch_add_memory(int nid, u64 start, u64 size) 
	return __add_pages(zone, start_pfn, nr_pages);

}



#ifdef CONFIG_MEMORY_HOTREMOVE

int remove_memory(u64 start, u64 size)

{

	unsigned long start_pfn, end_pfn;

	int ret;



	start_pfn = start >> PAGE_SHIFT;

	end_pfn = start_pfn + (size >> PAGE_SHIFT);

	ret = offline_pages(start_pfn, end_pfn, 120 * HZ);

	if (ret)

		goto out;

	/* Arch-specific calls go here - next patch */

out:

	return ret;

}

#endif /* CONFIG_MEMORY_HOTREMOVE */

#endif /* CONFIG_MEMORY_HOTPLUG */



void show_mem(void)