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| author |   Jeremy Fitzhardinge <jeremy@goop.org> | 2008-07-08 15:06:40 -0700 |
|---|---|---|
| committer |   Ingo Molnar <mingo@elte.hu> | 2008-07-16 10:57:45 +0200 |
| commit | ce87b3d326de733c72b47662f106ee6cd699a20f (patch) | |
| tree | 6cc34db72537616ad043117b5f5c4d9e6a570558 /arch/x86/xen/mmu.c | |
| parent | xen64: random ifdefs to mask out 32-bit only code (diff) | |
| download | linux-dev-ce87b3d326de733c72b47662f106ee6cd699a20f.tar.xz linux-dev-ce87b3d326de733c72b47662f106ee6cd699a20f.zip | |
xen64: get active_mm from the pda
x86_64 stores the active_mm in the pda, so fetch it from there.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Cc: Stephen Tweedie <sct@redhat.com>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Cc: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to '')
| -rw-r--r-- | arch/x86/xen/mmu.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c index d0976b87cd2c..2579e70cdd08 100644 --- a/arch/x86/xen/mmu.c +++ b/arch/x86/xen/mmu.c @@ -805,8 +805,15 @@ void xen_dup_mmap(struct mm_struct *oldmm, struct mm_struct *mm) static void drop_other_mm_ref(void *info) { struct mm_struct *mm = info; + struct mm_struct *active_mm; - if (__get_cpu_var(cpu_tlbstate).active_mm == mm) +#ifdef CONFIG_X86_64 + active_mm = read_pda(active_mm); +#else + active_mm = __get_cpu_var(cpu_tlbstate).active_mm; +#endif + + if (active_mm == mm) leave_mm(smp_processor_id()); /* If this cpu still has a stale cr3 reference, then make sure |