X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=src%2Fsvm%2Fsvm_fifo.h;h=80e5b0f2d39c23d3e07d46d44627ac82a534d1df;hb=refs%2Fchanges%2F49%2F5949%2F11;hp=39556173e4d1937181c55d2aa12801c91a52d6e8;hpb=799e26d5bdf6b74ab615644e0cd291de6e352989;p=vpp.git

diff --git a/src/svm/svm_fifo.h b/src/svm/svm_fifo.h
index 39556173e4d..80e5b0f2d39 100644
--- a/src/svm/svm_fifo.h
+++ b/src/svm/svm_fifo.h
@@ -44,14 +44,16 @@ typedef struct
 
 typedef struct
 {
+  volatile u32 cursize;		/**< current fifo size */
+  u32 nitems;
+    CLIB_CACHE_LINE_ALIGN_MARK (end_cursize);
+
   pthread_mutex_t mutex;	/* 8 bytes */
   pthread_cond_t condvar;	/* 8 bytes */
   svm_lock_tag_t tag;
 
-  volatile u32 cursize;		/**< current fifo size */
   volatile u8 has_event;	/**< non-zero if deq event exists */
   u32 owner_pid;
-  u32 nitems;
 
   /* Backpointers */
   u32 server_session_index;
@@ -105,7 +107,7 @@ svm_fifo_max_dequeue (svm_fifo_t * f)
 static inline u32
 svm_fifo_max_enqueue (svm_fifo_t * f)
 {
-  return f->nitems - f->cursize;
+  return f->nitems - svm_fifo_max_dequeue (f);
 }
 
 static inline u8