unimore/kernel-hacking-2024-linux-steffo
unimore/kernel-hacking-2024-linux-steffo
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Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6

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* '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
This commit is contained in:
Linus Torvalds 2009-04-20 12:34:36 -07:00
commit 608faf1ff2
2 changed files with 6 additions and 10 deletions
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2
arch/ia64/include/asm/paravirt_privop.h
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@ -445,7 +445,6 @@ paravirt_set_rr0_to_rr4(unsigned long val0, unsigned long val1,
register unsigned long ia64_intri_res asm ("r8"); \
register unsigned long __reg asm ("r8") = (reg); \
\
BUILD_BUG_ON(!__builtin_constant_p(reg)); \
asm volatile (paravirt_alt_bundle(__PARAVIRT_BR, \
PARAVIRT_TYPE(GETREG) \
+ (reg)) \
@ -464,7 +463,6 @@ paravirt_set_rr0_to_rr4(unsigned long val0, unsigned long val1,
register unsigned long ia64_clobber1 asm ("r8"); \
register unsigned long ia64_clobber2 asm ("r9"); \
\
BUILD_BUG_ON(!__builtin_constant_p(reg)); \
asm volatile (paravirt_alt_bundle(__PARAVIRT_BR, \
PARAVIRT_TYPE(SETREG) \
+ (reg)) \

14
arch/ia64/kernel/smp.c
View file

@ -225,6 +225,7 @@ smp_send_reschedule (int cpu)
{
platform_send_ipi(cpu, IA64_IPI_RESCHEDULE, IA64_IPI_DM_INT, 0);
}
EXPORT_SYMBOL_GPL(smp_send_reschedule);
/*
* Called with preemption disabled.
@ -300,15 +301,12 @@ smp_flush_tlb_mm (struct mm_struct *mm)
return;
}
smp_call_function_mask(mm->cpu_vm_mask,
(void (*)(void *))local_finish_flush_tlb_mm, mm, 1);
local_irq_disable();
local_finish_flush_tlb_mm(mm);
local_irq_enable();
preempt_enable();
/*
* We could optimize this further by using mm->cpu_vm_mask to track which CPUs
* have been running in the address space. It's not clear that this is worth the
* trouble though: to avoid races, we have to raise the IPI on the target CPU
* anyhow, and once a CPU is interrupted, the cost of local_flush_tlb_all() is
* rather trivial.
*/
on_each_cpu((void (*)(void *))local_finish_flush_tlb_mm, mm, 1);
}
void arch_send_call_function_single_ipi(int cpu)