Merge branch 'for-2.6.31' of git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6
[kernel.git] / drivers / ide / ide-io.c
index 6415a2e..41d8040 100644 (file)
@@ -248,14 +248,7 @@ void ide_map_sg(ide_drive_t *drive, struct ide_cmd *cmd)
        struct scatterlist *sg = hwif->sg_table;
        struct request *rq = cmd->rq;
 
-       if (rq->cmd_type == REQ_TYPE_ATA_TASKFILE) {
-               sg_init_one(sg, rq->buffer, rq->nr_sectors * SECTOR_SIZE);
-               cmd->sg_nents = 1;
-       } else if (!rq->bio) {
-               sg_init_one(sg, rq->data, rq->data_len);
-               cmd->sg_nents = 1;
-       } else
-               cmd->sg_nents = blk_rq_map_sg(drive->queue, rq, sg);
+       cmd->sg_nents = blk_rq_map_sg(drive->queue, rq, sg);
 }
 EXPORT_SYMBOL_GPL(ide_map_sg);
 
@@ -371,7 +364,7 @@ static ide_startstop_t start_request (ide_drive_t *drive, struct request *rq)
                if (rq->cmd_type == REQ_TYPE_ATA_TASKFILE)
                        return execute_drive_cmd(drive, rq);
                else if (blk_pm_request(rq)) {
-                       struct request_pm_state *pm = rq->data;
+                       struct request_pm_state *pm = rq->special;
 #ifdef DEBUG_PM
                        printk("%s: start_power_step(step: %d)\n",
                                drive->name, pm->pm_step);
@@ -484,6 +477,9 @@ void do_ide_request(struct request_queue *q)
 
        spin_unlock_irq(q->queue_lock);
 
+       /* HLD do_request() callback might sleep, make sure it's okay */
+       might_sleep();
+
        if (ide_lock_host(host, hwif))
                goto plug_device_2;