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| author | Rusty Russell <rusty@rustcorp.com.au> | 2007-05-02 19:27:10 +0200 |
|---|---|---|
| committer | Andi Kleen <andi@basil.nowhere.org> | 2007-05-02 19:27:10 +0200 |
| commit | ae1ee11be77f51cedb6c569887dddc70c163ab6d (patch) | |
| tree | e579a6a6d10c6835cab9af47a2795bf40f669da6 /include/asm-i386/pda.h | |
| parent | 8f9aeca7a081d81c4c9862be1e04f15b5ab5461f (diff) | |
| download | talos-op-linux-ae1ee11be77f51cedb6c569887dddc70c163ab6d.tar.gz talos-op-linux-ae1ee11be77f51cedb6c569887dddc70c163ab6d.zip | |
[PATCH] i386: Use per-cpu variables for GDT, PDA
Allocating PDA and GDT at boot is a pain. Using simple per-cpu variables adds
happiness (although we need the GDT page-aligned for Xen, which we do in a
followup patch).
[akpm@linux-foundation.org: build fix]
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Andi Kleen <ak@suse.de>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'include/asm-i386/pda.h')
| -rw-r--r-- | include/asm-i386/pda.h | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/include/asm-i386/pda.h b/include/asm-i386/pda.h index b12d59a318b7..aef7f732f77e 100644 --- a/include/asm-i386/pda.h +++ b/include/asm-i386/pda.h @@ -8,6 +8,7 @@ #include <linux/stddef.h> #include <linux/types.h> +#include <asm/percpu.h> struct i386_pda { @@ -18,10 +19,8 @@ struct i386_pda struct pt_regs *irq_regs; }; -extern struct i386_pda *_cpu_pda[]; - -#define cpu_pda(i) (_cpu_pda[i]) - +DECLARE_PER_CPU(struct i386_pda, _cpu_pda); +#define cpu_pda(i) (&per_cpu(_cpu_pda, (i))) #define pda_offset(field) offsetof(struct i386_pda, field) extern void __bad_pda_field(void); |
