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[PATCH] x86_64: Inclusion of ScaleMP vSMP architecture patches - vsmp_align

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vSMP specific alignment patch to
1. Define INTERNODE_CACHE_SHIFT for vSMP
2. Use this for alignment of critical structures
3. Use INTERNODE_CACHE_SHIFT for ARCH_MIN_TASKALIGN,
   and let the slab align task_struct allocations to the internode cacheline size
4. Introduce and use ARCH_MIN_MMSTRUCT_ALIGN for mm_struct slab allocations.

Signed-off-by: Ravikiran Thirumalai <kiran@scalemp.com>
Signed-off-by: Shai Fultheim <shai@scalemp.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Ravikiran G Thirumalai
2006-01-11 22:46:15 +01:00
committed by Linus Torvalds
parent 99f7b77d3c
commit 5fd63b3085
3 changed files with 23 additions and 1 deletions
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6
kernel/fork.c
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@ -1298,6 +1298,10 @@ long do_fork(unsigned long clone_flags,
return pid;
}
#ifndef ARCH_MIN_MMSTRUCT_ALIGN
#define ARCH_MIN_MMSTRUCT_ALIGN 0
#endif
void __init proc_caches_init(void)
{
sighand_cachep = kmem_cache_create("sighand_cache",
@ -1316,6 +1320,6 @@ void __init proc_caches_init(void)
sizeof(struct vm_area_struct), 0,
SLAB_PANIC, NULL, NULL);
mm_cachep = kmem_cache_create("mm_struct",
sizeof(struct mm_struct), 0,
sizeof(struct mm_struct), ARCH_MIN_MMSTRUCT_ALIGN,
SLAB_HWCACHE_ALIGN|SLAB_PANIC, NULL, NULL);
}