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s390: Allow vmalloc target buffers for copy_from_oldmem()
authorMichael Holzheu <holzheu@linux.vnet.ibm.com>
Fri, 27 Sep 2013 13:41:43 +0000 (15:41 +0200)
committerMartin Schwidefsky <schwidefsky@de.ibm.com>
Mon, 30 Sep 2013 11:04:40 +0000 (13:04 +0200)
Currently copy_from_oldmem() is not able to copy to virtual memory.
When using kexec pre-allocated ELF header, copy_from_oldmem()
is used to copy the ELF notes information to vmalloc buffers.

So fix this and use the new function copy_from_realmem() that allows
copying also to vmalloc memory.

Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

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