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-rw-r--r--src/svm/ssvm.h17
1 files changed, 17 insertions, 0 deletions
diff --git a/src/svm/ssvm.h b/src/svm/ssvm.h
index bccfc164bef..8466e15579b 100644
--- a/src/svm/ssvm.h
+++ b/src/svm/ssvm.h
@@ -102,6 +102,15 @@ ssvm_lock (ssvm_shared_header_t * h, u32 my_pid, u32 tag)
}
always_inline void
+ssvm_lock_non_recursive (ssvm_shared_header_t * h, u32 tag)
+{
+ while (__sync_lock_test_and_set (&h->lock, 1))
+ ;
+
+ h->tag = tag;
+}
+
+always_inline void
ssvm_unlock (ssvm_shared_header_t * h)
{
if (--h->recursion_count == 0)
@@ -113,6 +122,14 @@ ssvm_unlock (ssvm_shared_header_t * h)
}
}
+always_inline void
+ssvm_unlock_non_recursive (ssvm_shared_header_t * h)
+{
+ h->tag = 0;
+ CLIB_MEMORY_BARRIER ();
+ h->lock = 0;
+}
+
static inline void *
ssvm_push_heap (ssvm_shared_header_t * sh)
{