summaryrefslogtreecommitdiff
path: root/include/linux/sched.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/linux/sched.h')
-rw-r--r--include/linux/sched.h16
1 files changed, 16 insertions, 0 deletions
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 119823decc46..3c602c20c717 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1344,6 +1344,18 @@ enum perf_event_task_context {
perf_nr_task_contexts,
};
+/* Track pages that require TLB flushes */
+struct tlbflush_unmap_batch {
+ /*
+ * Each bit set is a CPU that potentially has a TLB entry for one of
+ * the PFNs being flushed. See set_tlb_ubc_flush_pending().
+ */
+ struct cpumask cpumask;
+
+ /* True if any bit in cpumask is set */
+ bool flush_required;
+};
+
struct task_struct {
volatile long state; /* -1 unrunnable, 0 runnable, >0 stopped */
void *stack;
@@ -1700,6 +1712,10 @@ struct task_struct {
unsigned long numa_pages_migrated;
#endif /* CONFIG_NUMA_BALANCING */
+#ifdef CONFIG_ARCH_WANT_BATCHED_UNMAP_TLB_FLUSH
+ struct tlbflush_unmap_batch tlb_ubc;
+#endif
+
struct rcu_head rcu;
/*