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authorRavikiran G Thirumalai <kiran@scalex86.org>2006-01-12 00:46:15 +0300
committerLinus Torvalds <torvalds@g5.osdl.org>2006-01-12 06:05:01 +0300
commit5fd63b308569060ffa40af52ed122d9734111bff (patch)
tree746c2701ec42374b1ec389a6af0d438c9105a9d7 /kernel
parent99f7b77d3c62045bb47dfc4228a2341ba71bff1d (diff)
downloadlinux-5fd63b308569060ffa40af52ed122d9734111bff.tar.xz
[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 <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>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/fork.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/kernel/fork.c b/kernel/fork.c
index 16a776ec2c0b..4ae8cfc1c89c 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);
}