Merge branch 'linus' into core/softlockup

Conflicts:

	kernel/softlockup.c

Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 60 insertions, 62 deletions

diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c
index 68e7f19dc036..d99847157186 100644
--- a/drivers/ide/ide-cd.c
+++ b/drivers/ide/ide-cd.c
@@ -188,16 +188,6 @@ static void cdrom_analyze_sense_data(ide_drive_t *drive,
 	ide_cd_log_error(drive->name, failed_command, sense);
 }
 
-/* Initialize a ide-cd packet command request */
-void ide_cd_init_rq(ide_drive_t *drive, struct request *rq)
-{
-	struct cdrom_info *cd = drive->driver_data;
-
-	ide_init_drive_cmd(rq);
-	rq->cmd_type = REQ_TYPE_ATA_PC;
-	rq->rq_disk = cd->disk;
-}
-
 static void cdrom_queue_request_sense(ide_drive_t *drive, void *sense,
 				      struct request *failed_command)
 {
@@ -208,7 +198,9 @@ static void cdrom_queue_request_sense(ide_drive_t *drive, void *sense,
 		sense = &info->sense_data;
 
 	/* stuff the sense request in front of our current request */
-	ide_cd_init_rq(drive, rq);
+	blk_rq_init(NULL, rq);
+	rq->cmd_type = REQ_TYPE_ATA_PC;
+	rq->rq_disk = info->disk;
 
 	rq->data = sense;
 	rq->cmd[0] = GPCMD_REQUEST_SENSE;
@@ -216,11 +208,12 @@ static void cdrom_queue_request_sense(ide_drive_t *drive, void *sense,
 	rq->data_len = 18;
 
 	rq->cmd_type = REQ_TYPE_SENSE;
+	rq->cmd_flags |= REQ_PREEMPT;
 
 	/* NOTE! Save the failed command in "rq->buffer" */
 	rq->buffer = (void *) failed_command;
 
-	(void) ide_do_drive_cmd(drive, rq, ide_preempt);
+	ide_do_drive_cmd(drive, rq);
 }
 
 static void cdrom_end_request(ide_drive_t *drive, int uptodate)
@@ -537,8 +530,8 @@ static ide_startstop_t cdrom_start_packet_command(ide_drive_t *drive,
 		info->dma = !hwif->dma_ops->dma_setup(drive);
 
 	/* set up the controller registers */
-	ide_pktcmd_tf_load(drive, IDE_TFLAG_OUT_NSECT | IDE_TFLAG_OUT_LBAL |
-			   IDE_TFLAG_NO_SELECT_MASK, xferlen, info->dma);
+	ide_pktcmd_tf_load(drive, IDE_TFLAG_OUT_NSECT | IDE_TFLAG_OUT_LBAL,
+			   xferlen, info->dma);
 
 	if (info->cd_flags & IDE_CD_FLAG_DRQ_INTERRUPT) {
 		/* waiting for CDB interrupt, not DMA yet. */
@@ -838,34 +831,54 @@ static void ide_cd_request_sense_fixup(struct request *rq)
 		}
 }
 
-int ide_cd_queue_pc(ide_drive_t *drive, struct request *rq)
+int ide_cd_queue_pc(ide_drive_t *drive, const unsigned char *cmd,
+		    int write, void *buffer, unsigned *bufflen,
+		    struct request_sense *sense, int timeout,
+		    unsigned int cmd_flags)
 {
-	struct request_sense sense;
+	struct cdrom_info *info = drive->driver_data;
+	struct request_sense local_sense;
 	int retries = 10;
-	unsigned int flags = rq->cmd_flags;
+	unsigned int flags = 0;
 
-	if (rq->sense == NULL)
-		rq->sense = &sense;
+	if (!sense)
+		sense = &local_sense;
 
 	/* start of retry loop */
 	do {
+		struct request *rq;
 		int error;
-		unsigned long time = jiffies;
-		rq->cmd_flags = flags;
 
-		error = ide_do_drive_cmd(drive, rq, ide_wait);
-		time = jiffies - time;
+		rq = blk_get_request(drive->queue, write, __GFP_WAIT);
+
+		memcpy(rq->cmd, cmd, BLK_MAX_CDB);
+		rq->cmd_type = REQ_TYPE_ATA_PC;
+		rq->sense = sense;
+		rq->cmd_flags |= cmd_flags;
+		rq->timeout = timeout;
+		if (buffer) {
+			rq->data = buffer;
+			rq->data_len = *bufflen;
+		}
+
+		error = blk_execute_rq(drive->queue, info->disk, rq, 0);
+
+		if (buffer)
+			*bufflen = rq->data_len;
+
+		flags = rq->cmd_flags;
+		blk_put_request(rq);
 
 		/*
 		 * FIXME: we should probably abort/retry or something in case of
 		 * failure.
 		 */
-		if (rq->cmd_flags & REQ_FAILED) {
+		if (flags & REQ_FAILED) {
 			/*
 			 * The request failed.  Retry if it was due to a unit
 			 * attention status (usually means media was changed).
 			 */
-			struct request_sense *reqbuf = rq->sense;
+			struct request_sense *reqbuf = sense;
 
 			if (reqbuf->sense_key == UNIT_ATTENTION)
 				cdrom_saw_media_change(drive);
@@ -885,10 +898,10 @@ int ide_cd_queue_pc(ide_drive_t *drive, struct request *rq)
 		}
 
 		/* end of retry loop */
-	} while ((rq->cmd_flags & REQ_FAILED) && retries >= 0);
+	} while ((flags & REQ_FAILED) && retries >= 0);
 
 	/* return an error if the command failed */
-	return (rq->cmd_flags & REQ_FAILED) ? -EIO : 0;
+	return (flags & REQ_FAILED) ? -EIO : 0;
 }
 
 /*
@@ -1268,23 +1281,20 @@ static void msf_from_bcd(struct atapi_msf *msf)
 
 int cdrom_check_status(ide_drive_t *drive, struct request_sense *sense)
 {
-	struct request req;
 	struct cdrom_info *info = drive->driver_data;
 	struct cdrom_device_info *cdi = &info->devinfo;
+	unsigned char cmd[BLK_MAX_CDB];
 
-	ide_cd_init_rq(drive, &req);
-
-	req.sense = sense;
-	req.cmd[0] = GPCMD_TEST_UNIT_READY;
-	req.cmd_flags |= REQ_QUIET;
+	memset(cmd, 0, BLK_MAX_CDB);
+	cmd[0] = GPCMD_TEST_UNIT_READY;
 
 	/*
 	 * Sanyo 3 CD changer uses byte 7 of TEST_UNIT_READY to switch CDs
 	 * instead of supporting the LOAD_UNLOAD opcode.
 	 */
-	req.cmd[7] = cdi->sanyo_slot % 3;
+	cmd[7] = cdi->sanyo_slot % 3;
 
-	return ide_cd_queue_pc(drive, &req);
+	return ide_cd_queue_pc(drive, cmd, 0, NULL, 0, sense, 0, REQ_QUIET);
 }
 
 static int cdrom_read_capacity(ide_drive_t *drive, unsigned long *capacity,
@@ -1297,17 +1307,14 @@ static int cdrom_read_capacity(ide_drive_t *drive, unsigned long *capacity,
 	} capbuf;
 
 	int stat;
-	struct request req;
-
-	ide_cd_init_rq(drive, &req);
+	unsigned char cmd[BLK_MAX_CDB];
+	unsigned len = sizeof(capbuf);
 
-	req.sense = sense;
-	req.cmd[0] = GPCMD_READ_CDVD_CAPACITY;
-	req.data = (char *)&capbuf;
-	req.data_len = sizeof(capbuf);
-	req.cmd_flags |= REQ_QUIET;
+	memset(cmd, 0, BLK_MAX_CDB);
+	cmd[0] = GPCMD_READ_CDVD_CAPACITY;
 
-	stat = ide_cd_queue_pc(drive, &req);
+	stat = ide_cd_queue_pc(drive, cmd, 0, &capbuf, &len, sense, 0,
+			       REQ_QUIET);
 	if (stat == 0) {
 		*capacity = 1 + be32_to_cpu(capbuf.lba);
 		*sectors_per_frame =
@@ -1321,24 +1328,20 @@ static int cdrom_read_tocentry(ide_drive_t *drive, int trackno, int msf_flag,
 				int format, char *buf, int buflen,
 				struct request_sense *sense)
 {
-	struct request req;
+	unsigned char cmd[BLK_MAX_CDB];
 
-	ide_cd_init_rq(drive, &req);
+	memset(cmd, 0, BLK_MAX_CDB);
 
-	req.sense = sense;
-	req.data =  buf;
-	req.data_len = buflen;
-	req.cmd_flags |= REQ_QUIET;
-	req.cmd[0] = GPCMD_READ_TOC_PMA_ATIP;
-	req.cmd[6] = trackno;
-	req.cmd[7] = (buflen >> 8);
-	req.cmd[8] = (buflen & 0xff);
-	req.cmd[9] = (format << 6);
+	cmd[0] = GPCMD_READ_TOC_PMA_ATIP;
+	cmd[6] = trackno;
+	cmd[7] = (buflen >> 8);
+	cmd[8] = (buflen & 0xff);
+	cmd[9] = (format << 6);
 
 	if (msf_flag)
-		req.cmd[1] = 2;
+		cmd[1] = 2;
 
-	return ide_cd_queue_pc(drive, &req);
+	return ide_cd_queue_pc(drive, cmd, 0, buf, &buflen, sense, 0, REQ_QUIET);
 }
 
 /* Try to read the entire TOC for the disk into our internal buffer. */
@@ -2103,11 +2106,6 @@ static int ide_cd_probe(ide_drive_t *drive)
 			goto failed;
 		}
 	}
-	if (drive->scsi) {
-		printk(KERN_INFO "ide-cd: passing drive %s to ide-scsi "
-				 "emulation.\n", drive->name);
-		goto failed;
-	}
 	info = kzalloc(sizeof(struct cdrom_info), GFP_KERNEL);
 	if (info == NULL) {
 		printk(KERN_ERR "%s: Can't allocate a cdrom structure\n",