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authorJeremy Fitzhardinge <jeremy@goop.org>2007-05-02 13:27:14 -0400
committerAndi Kleen <andi@basil.nowhere.org>2007-05-02 13:27:14 -0400
commitd6dd61c831226f9cd7750885da04d360d6455101 (patch)
tree30f84a429821d207f7de5dd6225d3d9515042c0a /include/asm-ia64
parent5311ab62cdc7788784971ed816ce85e926f3e994 (diff)
[PATCH] x86: PARAVIRT: add hooks to intercept mm creation and destruction
Add hooks to allow a paravirt implementation to track the lifetime of an mm. Paravirtualization requires three hooks, but only two are needed in common code. They are: arch_dup_mmap, which is called when a new mmap is created at fork arch_exit_mmap, which is called when the last process reference to an mm is dropped, which typically happens on exit and exec. The third hook is activate_mm, which is called from the arch-specific activate_mm() macro/function, and so doesn't need stub versions for other architectures. It's called when an mm is first used. Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com> Signed-off-by: Andi Kleen <ak@suse.de> Cc: linux-arch@vger.kernel.org Cc: James Bottomley <James.Bottomley@SteelEye.com> Acked-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/asm-ia64')
-rw-r--r--include/asm-ia64/mmu_context.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/asm-ia64/mmu_context.h b/include/asm-ia64/mmu_context.h
index b5c65081a3aa..cef2400983fa 100644
--- a/include/asm-ia64/mmu_context.h
+++ b/include/asm-ia64/mmu_context.h
@@ -29,6 +29,7 @@
29#include <linux/spinlock.h> 29#include <linux/spinlock.h>
30 30
31#include <asm/processor.h> 31#include <asm/processor.h>
32#include <asm-generic/mm_hooks.h>
32 33
33struct ia64_ctx { 34struct ia64_ctx {
34 spinlock_t lock; 35 spinlock_t lock;