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Commit dc1d60a0 authored by David Howells's avatar David Howells Committed by Linus Torvalds
Browse files

FRV: Specify the minimum slab/kmalloc alignment 



Specify the minimum slab/kmalloc alignment to be 8 bytes.  This fixes a
crash when SLOB is selected as the memory allocator.  The FRV arch needs
this so that it can use the load- and store-double instructions without
faulting.  By default SLOB sets the minimum to be 4 bytes.

Signed-off-by: default avatarDavid Howells <dhowells@redhat.com>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 5e55843b

include/asm-frv/mem-layout.h

+7 −0
Original line number Original line Diff line number Diff line
@@ -31,6 +31,13 @@ 




#define PAGE_MASK			(~(PAGE_SIZE-1))

#define PAGE_MASK			(~(PAGE_SIZE-1))





/*

 * the slab must be aligned such that load- and store-double instructions don't

 * fault if used

 */

#define	ARCH_KMALLOC_MINALIGN		(sizeof(long) * 2)

#define	ARCH_SLAB_MINALIGN		(sizeof(long) * 2)



/*****************************************************************************/

/*****************************************************************************/

/*

/*

 * virtual memory layout from kernel's point of view

 * virtual memory layout from kernel's point of view