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path: root/drivers/ide/ide-io.c
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Diffstat (limited to 'drivers/ide/ide-io.c')
-rw-r--r--drivers/ide/ide-io.c14
1 files changed, 5 insertions, 9 deletions
diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c
index 6415a2e2ba87..41d804065d38 100644
--- a/drivers/ide/ide-io.c
+++ b/drivers/ide/ide-io.c
@@ -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;