From 5fd63b308569060ffa40af52ed122d9734111bff Mon Sep 17 00:00:00 2001 From: Ravikiran G Thirumalai Date: Wed, 11 Jan 2006 22:46:15 +0100 Subject: [PATCH] x86_64: Inclusion of ScaleMP vSMP architecture patches - vsmp_align 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 Signed-off-by: Shai Fultheim Signed-off-by: Andi Kleen Signed-off-by: Linus Torvalds --- kernel/fork.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'kernel/fork.c') diff --git a/kernel/fork.c b/kernel/fork.c index 16a776ec2c0..4ae8cfc1c89 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -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); } -- cgit v1.2.3