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| author | David S. Miller <davem@davemloft.net> | 2014-09-08 06:41:53 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-09-08 06:41:53 +0200 |
| commit | eb84d6b60491a3ca3d90d62ee5346b007770d40d (patch) | |
| tree | 22aadf9ada15e1ae5ba4c400aafab6f2541996e6 /arch/x86/mm/tlb.c | |
| parent | net: phy: mdio-sun4i: don't select REGULATOR (diff) | |
| parent | Merge branch 'for-3.17-fixes' of git://git.kernel.org/pub/scm/linux/kernel/gi... (diff) | |
| download | linux-eb84d6b60491a3ca3d90d62ee5346b007770d40d.tar.xz linux-eb84d6b60491a3ca3d90d62ee5346b007770d40d.zip | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Diffstat (limited to 'arch/x86/mm/tlb.c')
| -rw-r--r-- | arch/x86/mm/tlb.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/arch/x86/mm/tlb.c b/arch/x86/mm/tlb.c index 1fe33987de02..ee61c36d64f8 100644 --- a/arch/x86/mm/tlb.c +++ b/arch/x86/mm/tlb.c @@ -49,7 +49,13 @@ void leave_mm(int cpu) if (cpumask_test_cpu(cpu, mm_cpumask(active_mm))) { cpumask_clear_cpu(cpu, mm_cpumask(active_mm)); load_cr3(swapper_pg_dir); - trace_tlb_flush(TLB_FLUSH_ON_TASK_SWITCH, TLB_FLUSH_ALL); + /* + * This gets called in the idle path where RCU + * functions differently. Tracing normally + * uses RCU, so we have to call the tracepoint + * specially here. + */ + trace_tlb_flush_rcuidle(TLB_FLUSH_ON_TASK_SWITCH, TLB_FLUSH_ALL); } } EXPORT_SYMBOL_GPL(leave_mm); @@ -174,7 +180,7 @@ void flush_tlb_current_task(void) * * This is in units of pages. */ -unsigned long tlb_single_page_flush_ceiling = 33; +static unsigned long tlb_single_page_flush_ceiling __read_mostly = 33; void flush_tlb_mm_range(struct mm_struct *mm, unsigned long start, unsigned long end, unsigned long vmflag) |