1 files changed, 5 insertions, 1 deletions

diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index a11ea4d6164c..39d30f12d98d 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -2105,7 +2105,11 @@ repeat:
                 group = ac->ac_g_ex.fe_group;
 
                 for (i = 0; i < ngroups; group++, i++) {
-                        if (group == ngroups)
+                        /*
+                         * Artificially restricted ngroups for non-extent
+                         * files makes group > ngroups possible on first loop.
+                         */
+                        if (group >= ngroups)
                                 group = 0;
 
                         /* This now checks without needing the buddy page */