Commit 93ef6d6c authored Jun 04, 2014 by Minchan Kim Committed by Linus Torvalds Jun 04, 2014

mm/vmalloc.c: export unmap_kernel_range()

zsmalloc needs exported unmap_kernel_range for building as a module.  See
https://lkml.org/lkml/2013/1/18/487



I didn't send a patch to make unmap_kernel_range exportable at that time
because zram was staging stuff and I thought VM function exporting for
staging stuff makes no sense.

Now zsmalloc was promoted.  If we can't build zsmalloc as module, it means
we can't build zram as module, either.  Additionally, buddy map_vm_area is
already exported so let's export unmap_kernel_range to help his buddy.

Signed-off-by: Minchan Kim <minchan@kernel.org>
Cc: Nitin Gupta <ngupta@vflare.org>
Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Cc: Jerome Marchand <jmarchan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

parent 7eb52512

mm/vmalloc.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -1268,6 +1268,7 @@ void unmap_kernel_range(unsigned long addr, unsigned long size)
		vunmap_page_range(addr, end);
		flush_tlb_kernel_range(addr, end);
		}
		EXPORT_SYMBOL_GPL(unmap_kernel_range);

		int map_vm_area(struct vm_struct area, pgprot_t prot, struct page **pages)
		{

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