[PATCH] FRV: Permit large kmalloc allocations [try #2]

Permit kmalloc() to make allocations of up to 32MB if so configured.  This
may be useful under NOMMU conditions where vmalloc() can't do this.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

diff --git a/arch/frv/Kconfig b/arch/frv/Kconfig
index f7b171b92ea2bad7ae134ea0cc5b04cc71f5d1a0..cf1c446e003ac6cad36c4a354872d0b41b2a2925 100644 (file)
--- a/arch/frv/Kconfig
+++ b/arch/frv/Kconfig
@@ -86,6 +86,14 @@ config HIGHPTE
          with a lot of RAM, this can be wasteful of precious low memory.
          Setting this option will put user-space page tables in high memory.
 
+config LARGE_ALLOCS
+       bool "Allow allocating large blocks (> 1MB) of memory"
+       help
+         Allow the slab memory allocator to keep chains for very large memory
+         sizes - up to 32MB. You may need this if your system has a lot of
+         RAM, and you need to able to allocate very large contiguous chunks.
+         If unsure, say N.
+
 source "mm/Kconfig"
 
 choice