1 files changed, 4 insertions, 10 deletions

diff --git a/drivers/scsi/st.h b/drivers/scsi/st.h
index b92712f95931..544dc6b1f548 100644
--- a/drivers/scsi/st.h
+++ b/drivers/scsi/st.h
@@ -29,6 +29,7 @@ struct st_request {
         int result;
         struct scsi_tape *stp;
         struct completion *waiting;
+        struct bio *bio;
 };
 
 /* The tape buffer descriptor. */
@@ -44,20 +45,13 @@ struct st_buffer {
         int syscall_result;
         struct st_request *last_SRpnt;
         struct st_cmdstatus cmdstat;
+        struct page **reserved_pages;
+        struct page **mapped_pages;
+        struct rq_map_data map_data;
         unsigned char *b_data;
         unsigned short use_sg;  /* zero or max number of s/g segments for this adapter */
         unsigned short sg_segs;         /* number of segments in s/g list */
-        unsigned short orig_frp_segs;   /* number of segments allocated at first try */
         unsigned short frp_segs;        /* number of buffer segments */
-        unsigned int frp_sg_current;    /* driver buffer length currently in s/g list */
-        struct st_buf_fragment *frp;    /* the allocated buffer fragment list */
-        struct scatterlist sg[1];       /* MUST BE last item */
-};
-
-/* The tape buffer fragment descriptor */
-struct st_buf_fragment {
-        struct page *page;
-        unsigned int length;
 };
 
 /* The tape mode definition */