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authorLinus Torvalds <torvalds@linux-foundation.org>2009-04-20 15:34:36 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2009-04-20 15:34:36 -0400
commit608faf1ff2341dd89307eea649c8efaa6d08b911 (patch)
treeb5e67ff0a8e8470de2cf1a8fc9edc83483fc406b
parenta939b96cccdb65df80a52447ec8e4a6d79c56dbb (diff)
parent05f0ecbda5c215279f8e0f852e1606f441a11236 (diff)
Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6: [IA64] fix allmodconfig compilation breakage. [IA64] smp_flush_tlb_mm() should only send IPI's to cpus in cpu_vm_mask [IA64] export smp_send_reschedule
-rw-r--r--arch/ia64/include/asm/paravirt_privop.h2
-rw-r--r--arch/ia64/kernel/smp.c14
2 files changed, 6 insertions, 10 deletions
diff --git a/arch/ia64/include/asm/paravirt_privop.h b/arch/ia64/include/asm/paravirt_privop.h
index 3d2951130b5f..8f6cb11c9fae 100644
--- a/arch/ia64/include/asm/paravirt_privop.h
+++ b/arch/ia64/include/asm/paravirt_privop.h
@@ -445,7 +445,6 @@ paravirt_set_rr0_to_rr4(unsigned long val0, unsigned long val1,
445 register unsigned long ia64_intri_res asm ("r8"); \ 445 register unsigned long ia64_intri_res asm ("r8"); \
446 register unsigned long __reg asm ("r8") = (reg); \ 446 register unsigned long __reg asm ("r8") = (reg); \
447 \ 447 \
448 BUILD_BUG_ON(!__builtin_constant_p(reg)); \
449 asm volatile (paravirt_alt_bundle(__PARAVIRT_BR, \ 448 asm volatile (paravirt_alt_bundle(__PARAVIRT_BR, \
450 PARAVIRT_TYPE(GETREG) \ 449 PARAVIRT_TYPE(GETREG) \
451 + (reg)) \ 450 + (reg)) \
@@ -464,7 +463,6 @@ paravirt_set_rr0_to_rr4(unsigned long val0, unsigned long val1,
464 register unsigned long ia64_clobber1 asm ("r8"); \ 463 register unsigned long ia64_clobber1 asm ("r8"); \
465 register unsigned long ia64_clobber2 asm ("r9"); \ 464 register unsigned long ia64_clobber2 asm ("r9"); \
466 \ 465 \
467 BUILD_BUG_ON(!__builtin_constant_p(reg)); \
468 asm volatile (paravirt_alt_bundle(__PARAVIRT_BR, \ 466 asm volatile (paravirt_alt_bundle(__PARAVIRT_BR, \
469 PARAVIRT_TYPE(SETREG) \ 467 PARAVIRT_TYPE(SETREG) \
470 + (reg)) \ 468 + (reg)) \
diff --git a/arch/ia64/kernel/smp.c b/arch/ia64/kernel/smp.c
index 2ea4199d9c57..5230eaafd83f 100644
--- a/arch/ia64/kernel/smp.c
+++ b/arch/ia64/kernel/smp.c
@@ -225,6 +225,7 @@ smp_send_reschedule (int cpu)
225{ 225{
226 platform_send_ipi(cpu, IA64_IPI_RESCHEDULE, IA64_IPI_DM_INT, 0); 226 platform_send_ipi(cpu, IA64_IPI_RESCHEDULE, IA64_IPI_DM_INT, 0);
227} 227}
228EXPORT_SYMBOL_GPL(smp_send_reschedule);
228 229
229/* 230/*
230 * Called with preemption disabled. 231 * Called with preemption disabled.
@@ -300,15 +301,12 @@ smp_flush_tlb_mm (struct mm_struct *mm)
300 return; 301 return;
301 } 302 }
302 303
304 smp_call_function_mask(mm->cpu_vm_mask,
305 (void (*)(void *))local_finish_flush_tlb_mm, mm, 1);
306 local_irq_disable();
307 local_finish_flush_tlb_mm(mm);
308 local_irq_enable();
303 preempt_enable(); 309 preempt_enable();
304 /*
305 * We could optimize this further by using mm->cpu_vm_mask to track which CPUs
306 * have been running in the address space. It's not clear that this is worth the
307 * trouble though: to avoid races, we have to raise the IPI on the target CPU
308 * anyhow, and once a CPU is interrupted, the cost of local_flush_tlb_all() is
309 * rather trivial.
310 */
311 on_each_cpu((void (*)(void *))local_finish_flush_tlb_mm, mm, 1);
312} 310}
313 311
314void arch_send_call_function_single_ipi(int cpu) 312void arch_send_call_function_single_ipi(int cpu)