---

yaml --- r: 18003 b: refs/heads/master c: 5fd63b3 h: refs/heads/master i: 18001: ab91885 17999: fcdbada v: v3
git-mirror · Jan 12, 2006 · 719decb · 719decb
1 parent 07d3d50
commit 719decb
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Showing 4 changed files with 24 additions and 2 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 99f7b77d3c62045bb47dfc4228a2341ba71bff1d
+refs/heads/master: 5fd63b308569060ffa40af52ed122d9734111bff
diff --git a/trunk/include/asm-x86_64/cache.h b/trunk/include/asm-x86_64/cache.h
@@ -10,4 +10,16 @@
 #define L1_CACHE_SHIFT	(CONFIG_X86_L1_CACHE_SHIFT)
 #define L1_CACHE_BYTES	(1 << L1_CACHE_SHIFT)
 
+#ifdef CONFIG_X86_VSMP
+
+/* vSMP Internode cacheline shift */
+#define INTERNODE_CACHE_SHIFT (12)
+#ifdef CONFIG_SMP
+#define __cacheline_aligned_in_smp					\
+       __attribute__((__aligned__(1 << (INTERNODE_CACHE_SHIFT))))         \
+       __attribute__((__section__(".data.page_aligned")))
+#endif
+
+#endif
+
 #endif
diff --git a/trunk/include/asm-x86_64/processor.h b/trunk/include/asm-x86_64/processor.h
@@ -227,7 +227,13 @@ struct tss_struct {
 extern struct cpuinfo_x86 boot_cpu_data;
 DECLARE_PER_CPU(struct tss_struct,init_tss);
 
+#ifdef CONFIG_X86_VSMP
+#define ARCH_MIN_TASKALIGN	(1 << INTERNODE_CACHE_SHIFT)
+#define ARCH_MIN_MMSTRUCT_ALIGN	(1 << INTERNODE_CACHE_SHIFT)
+#else
 #define ARCH_MIN_TASKALIGN	16
+#define ARCH_MIN_MMSTRUCT_ALIGN	0
+#endif
 
 struct thread_struct {
 	unsigned long	rsp0;

diff --git a/trunk/kernel/fork.c b/trunk/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);
 }