1 files changed, 21 insertions, 8 deletions

diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index 3ca7b9d3086c..bdce9d1f5b71 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -367,7 +367,7 @@ static int scsi_req_map_sg(struct request *rq, struct scatterlist *sgl,
                            int nsegs, unsigned bufflen, gfp_t gfp)
 {
         struct request_queue *q = rq->q;
-        int nr_pages = (bufflen + PAGE_SIZE - 1) >> PAGE_SHIFT;
+        int nr_pages = (bufflen + sgl[0].offset + PAGE_SIZE - 1) >> PAGE_SHIFT;
         unsigned int data_len = 0, len, bytes, off;
         struct page *page;
         struct bio *bio = NULL;
@@ -1067,16 +1067,29 @@ void scsi_io_completion(struct scsi_cmnd *cmd, unsigned int good_bytes,
                         break;
                 case NOT_READY:
                         /*
-                         * If the device is in the process of becoming ready,
-                         * retry.
+                         * If the device is in the process of becoming
+                         * ready, or has a temporary blockage, retry.
                          */
-                        if (sshdr.asc == 0x04 && sshdr.ascq == 0x01) {
-                                scsi_requeue_command(q, cmd);
-                                return;
+                        if (sshdr.asc == 0x04) {
+                                switch (sshdr.ascq) {
+                                case 0x01: /* becoming ready */
+                                case 0x04: /* format in progress */
+                                case 0x05: /* rebuild in progress */
+                                case 0x06: /* recalculation in progress */
+                                case 0x07: /* operation in progress */
+                                case 0x08: /* Long write in progress */
+                                case 0x09: /* self test in progress */
+                                        scsi_requeue_command(q, cmd);
+                                        return;
+                                default:
+                                        break;
+                                }
                         }
-                        if (!(req->flags & REQ_QUIET))
+                        if (!(req->flags & REQ_QUIET)) {
                                 scmd_printk(KERN_INFO, cmd,
-                                           "Device not ready.\n");
+                                           "Device not ready: ");
+                                scsi_print_sense_hdr("", &sshdr);
+                        }
                         scsi_end_request(cmd, 0, this_count, 1);
                         return;
                 case VOLUME_OVERFLOW: