Merge branch 'tracing-v28-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...

[sfrench/cifs-2.6.git] / include / linux / bio.h

diff --git a/include/linux/bio.h b/include/linux/bio.h
index 1beda208cbfbf17d1980dee03c49cd7d43678b7e..1c91a176b9ae8206f872a55a1318fb74048dbdec 100644 (file)
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -79,6 +79,13 @@ struct bio {
 
        unsigned int            bi_size;        /* residual I/O count */
 
+       /*
+        * To keep track of the max segment size, we account for the
+        * sizes of the first and last mergeable segments in this bio.
+        */
+       unsigned int            bi_seg_front_size;
+       unsigned int            bi_seg_back_size;
+
        unsigned int            bi_max_vecs;    /* max bvl_vecs we can hold */
 
        unsigned int            bi_comp_cpu;    /* completion CPU */