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authorBrian Gerst <brgerst@gmail.com>2009-01-19 00:38:58 +0900
committerTejun Heo <tj@kernel.org>2009-01-19 00:38:58 +0900
commitc6f5e0acd5d12ee23f701f15889872e67b47caa6 (patch)
treea4613618f06d7519f954745b893b4f572ecd39d9 /arch/x86/include/asm/system.h
parentea9279066de44053d0c20ea855bc9f4706652d84 (diff)
x86-64: Move current task from PDA to per-cpu and consolidate with 32-bit.
Signed-off-by: Brian Gerst <brgerst@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'arch/x86/include/asm/system.h')
-rw-r--r--arch/x86/include/asm/system.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/x86/include/asm/system.h b/arch/x86/include/asm/system.h
index 8e626ea33a1..4399aac680e 100644
--- a/arch/x86/include/asm/system.h
+++ b/arch/x86/include/asm/system.h
@@ -94,7 +94,7 @@ do { \
"call __switch_to\n\t" \
".globl thread_return\n" \
"thread_return:\n\t" \
- "movq %%gs:%P[pda_pcurrent],%%rsi\n\t" \
+ "movq "__percpu_seg_str"%P[current_task],%%rsi\n\t" \
"movq %P[thread_info](%%rsi),%%r8\n\t" \
LOCK_PREFIX "btr %[tif_fork],%P[ti_flags](%%r8)\n\t" \
"movq %%rax,%%rdi\n\t" \
@@ -106,7 +106,7 @@ do { \
[ti_flags] "i" (offsetof(struct thread_info, flags)), \
[tif_fork] "i" (TIF_FORK), \
[thread_info] "i" (offsetof(struct task_struct, stack)), \
- [pda_pcurrent] "i" (offsetof(struct x8664_pda, pcurrent)) \
+ [current_task] "m" (per_cpu_var(current_task)) \
: "memory", "cc" __EXTRA_CLOBBER)
#endif