X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=src%2Fsvm%2Fssvm.h;h=8466e15579b590dedfc01cb271e25fd011949278;hb=149a1433b0e6301a34989f5e8c7ebed3fa5bf74e;hp=bccfc164bef7516ffc680c867e79cd03255b02aa;hpb=68b0fb0c620c7451ef1a6380c43c39de6614db51;p=vpp.git

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
@@ -101,6 +101,15 @@ ssvm_lock (ssvm_shared_header_t * h, u32 my_pid, u32 tag)
   h->tag = 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)
 {
@@ -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)
 {