diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-04-20 15:34:36 -0400 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-04-20 15:34:36 -0400 |
commit | 608faf1ff2341dd89307eea649c8efaa6d08b911 (patch) | |
tree | b5e67ff0a8e8470de2cf1a8fc9edc83483fc406b /arch | |
parent | a939b96cccdb65df80a52447ec8e4a6d79c56dbb (diff) | |
parent | 05f0ecbda5c215279f8e0f852e1606f441a11236 (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
Diffstat (limited to 'arch')
-rw-r--r-- | arch/ia64/include/asm/paravirt_privop.h | 2 | ||||
-rw-r--r-- | arch/ia64/kernel/smp.c | 14 |
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 | } |
228 | EXPORT_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 | ||
314 | void arch_send_call_function_single_ipi(int cpu) | 312 | void arch_send_call_function_single_ipi(int cpu) |