1 files changed, 2 insertions, 1 deletions

diff --git a/fs/xfs/support/ktrace.h b/fs/xfs/support/ktrace.h
index 56e72b40a859..741d6947ca60 100644
--- a/fs/xfs/support/ktrace.h
+++ b/fs/xfs/support/ktrace.h
@@ -30,7 +30,8 @@ typedef struct ktrace_entry {
  */
 typedef struct ktrace {
         int             kt_nentries;    /* number of entries in trace buf */
-        int             kt_index;       /* current index in entries */
+        atomic_t        kt_index;       /* current index in entries */
+        unsigned int    kt_index_mask;
         int             kt_rollover;
         ktrace_entry_t  *kt_entries;    /* buffer of entries */
 } ktrace_t;