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

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
...@@ -31,6 +31,13 @@ ...@@ -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
......
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