kybaaz/linux-xiaomi-chiron
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Merge branch 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Browse source 
Pull SMP/hotplug updates from Thomas Gleixner:
 "A small set of updates for SMP and CPU hotplug:

   - Abort disabling secondary CPUs in the freezer when a wakeup is
     pending instead of evaluating it only after all CPUs have been
     offlined.

   - Remove the shared annotation for the strict per CPU cfd_data in the
     smp function call core code.

   - Remove the return values of smp_call_function() and on_each_cpu()
     as they are unconditionally 0. Fixup the few callers which actually
     bothered to check the return value"

* 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  smp: Remove smp_call_function() and on_each_cpu() return values
  smp: Do not mark call_function_data as shared
  cpu/hotplug: Abort disabling secondary CPUs if wakeup is pending
  cpu/hotplug: Fix notify_cpu_starting() reference in bringup_wait_for_ap()
This commit is contained in:
Linus Torvalds 2019-07-08 10:39:56 -07:00
commit e0e86b111b
12 changed files with 36 additions and 55 deletions
Download patch file Download diff file Expand all files Collapse all files

19
arch/alpha/kernel/smp.c
View file

@ -614,8 +614,7 @@ void
smp_imb(void)
{
/* Must wait other processors to flush their icache before continue. */
if (on_each_cpu(ipi_imb, NULL, 1))
printk(KERN_CRIT "smp_imb: timed out\n");
on_each_cpu(ipi_imb, NULL, 1);
}
EXPORT_SYMBOL(smp_imb);
@ -630,9 +629,7 @@ flush_tlb_all(void)
{
/* Although we don't have any data to pass, we do want to
synchronize with the other processors. */
if (on_each_cpu(ipi_flush_tlb_all, NULL, 1)) {
printk(KERN_CRIT "flush_tlb_all: timed out\n");
}
on_each_cpu(ipi_flush_tlb_all, NULL, 1);
}
#define asn_locked() (cpu_data[smp_processor_id()].asn_lock)
@ -667,9 +664,7 @@ flush_tlb_mm(struct mm_struct *mm)
}
}
if (smp_call_function(ipi_flush_tlb_mm, mm, 1)) {
printk(KERN_CRIT "flush_tlb_mm: timed out\n");
}
smp_call_function(ipi_flush_tlb_mm, mm, 1);
preempt_enable();
}
@ -720,9 +715,7 @@ flush_tlb_page(struct vm_area_struct *vma, unsigned long addr)
data.mm = mm;
data.addr = addr;
if (smp_call_function(ipi_flush_tlb_page, &data, 1)) {
printk(KERN_CRIT "flush_tlb_page: timed out\n");
}
smp_call_function(ipi_flush_tlb_page, &data, 1);
preempt_enable();
}
@ -772,9 +765,7 @@ flush_icache_user_range(struct vm_area_struct *vma, struct page *page,
}
}
if (smp_call_function(ipi_flush_icache_page, mm, 1)) {
printk(KERN_CRIT "flush_icache_page: timed out\n");
}
smp_call_function(ipi_flush_icache_page, mm, 1);
preempt_enable();
}