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Commit 4f896ffc authored by Paul Mundt's avatar Paul Mundt
Browse files

sh: unwinder: cacheline align slab cache objects. 



The CIE and FDE structs are big enough and accessed regularly enough in
certain configurations to make cacheline alignment useful.

Signed-off-by: default avatarPaul Mundt <lethal@linux-sh.org>
parent fa9d3b4d

arch/sh/kernel/dwarf.c

+5 −2
Original line number Diff line number Diff line
@@ -899,9 +899,12 @@ static int __init dwarf_unwinder_init(void) 
	entry = &__start_eh_frame;



	dwarf_frame_cachep = kmem_cache_create("dwarf_frames",

			sizeof(struct dwarf_frame), 0, SLAB_PANIC, NULL);

			sizeof(struct dwarf_frame), 0,

			SLAB_PANIC | SLAB_HWCACHE_ALIGN | SLAB_NOTRACK, NULL);



	dwarf_reg_cachep = kmem_cache_create("dwarf_regs",

			sizeof(struct dwarf_reg), 0, SLAB_PANIC, NULL);

			sizeof(struct dwarf_reg), 0,

			SLAB_PANIC | SLAB_HWCACHE_ALIGN | SLAB_NOTRACK, NULL);



	dwarf_frame_pool = mempool_create(DWARF_FRAME_MIN_REQ,

					  mempool_alloc_slab,