From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from bombadil.infradead.org ([65.50.211.133]:45053 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757418AbdDRPwp (ORCPT ); Tue, 18 Apr 2017 11:52:45 -0400 From: Christoph Hellwig To: Jens Axboe Cc: Josef Bacik , James Smart , Konrad Rzeszutek Wilk , =?UTF-8?q?Roger=20Pau=20Monn=C3=A9?= , linux-scsi@vger.kernel.org, linux-nvme@lists.infradead.org, linux-block@vger.kernel.org, dm-devel@redhat.com, Christoph Hellwig Subject: block: remove the blk_execute_rq return value Date: Tue, 18 Apr 2017 08:52:07 -0700 Message-Id: <20170418155229.5977-2-hch@bombadil.infradead.org> In-Reply-To: <20170418155229.5977-1-hch@bombadil.infradead.org> References: <20170418155229.5977-1-hch@bombadil.infradead.org> Sender: linux-block-owner@vger.kernel.org List-Id: linux-block@vger.kernel.org From: Christoph Hellwig The function only returns -EIO if rq->errors is non-zero, which is not very useful and lets a large number of callers ignore the return value. Just let the callers figure out their error themselves. Signed-off-by: Christoph Hellwig Reviewed-by: Johannes Thumshirn --- block/blk-exec.c | 8 +------- block/scsi_ioctl.c | 3 ++- drivers/block/paride/pd.c | 3 ++- drivers/block/virtio_blk.c | 3 ++- drivers/cdrom/cdrom.c | 3 ++- drivers/ide/ide-atapi.c | 3 ++- drivers/ide/ide-cd.c | 3 ++- drivers/ide/ide-cd_ioctl.c | 3 ++- drivers/ide/ide-devsets.c | 4 ++-- drivers/ide/ide-disk.c | 3 +-- drivers/ide/ide-ioctls.c | 7 ++++--- drivers/ide/ide-park.c | 3 ++- drivers/ide/ide-pm.c | 3 ++- drivers/ide/ide-taskfile.c | 4 ++-- drivers/scsi/osd/osd_initiator.c | 5 ++++- fs/nfsd/blocklayout.c | 5 +++-- include/linux/blkdev.h | 2 +- 17 files changed, 36 insertions(+), 29 deletions(-) diff --git a/block/blk-exec.c b/block/blk-exec.c index 8cd0e9bc8dc8..afa383248c7c 100644 --- a/block/blk-exec.c +++ b/block/blk-exec.c @@ -92,11 +92,10 @@ EXPORT_SYMBOL_GPL(blk_execute_rq_nowait); * Insert a fully prepared request at the back of the I/O scheduler queue * for execution and wait for completion. */ -int blk_execute_rq(struct request_queue *q, struct gendisk *bd_disk, +void blk_execute_rq(struct request_queue *q, struct gendisk *bd_disk, struct request *rq, int at_head) { DECLARE_COMPLETION_ONSTACK(wait); - int err = 0; unsigned long hang_check; rq->end_io_data = &wait; @@ -108,10 +107,5 @@ int blk_execute_rq(struct request_queue *q, struct gendisk *bd_disk, while (!wait_for_completion_io_timeout(&wait, hang_check * (HZ/2))); else wait_for_completion_io(&wait); - - if (rq->errors) - err = -EIO; - - return err; } EXPORT_SYMBOL(blk_execute_rq); diff --git a/block/scsi_ioctl.c b/block/scsi_ioctl.c index 82a43bb19967..b1352143f12f 100644 --- a/block/scsi_ioctl.c +++ b/block/scsi_ioctl.c @@ -547,7 +547,8 @@ static int __blk_send_generic(struct request_queue *q, struct gendisk *bd_disk, scsi_req(rq)->cmd[0] = cmd; scsi_req(rq)->cmd[4] = data; scsi_req(rq)->cmd_len = 6; - err = blk_execute_rq(q, bd_disk, rq, 0); + blk_execute_rq(q, bd_disk, rq, 0); + err = rq->errors ? -EIO : 0; blk_put_request(rq); return err; diff --git a/drivers/block/paride/pd.c b/drivers/block/paride/pd.c index b05e151c9b38..82c6d02193ae 100644 --- a/drivers/block/paride/pd.c +++ b/drivers/block/paride/pd.c @@ -747,7 +747,8 @@ static int pd_special_command(struct pd_unit *disk, rq->special = func; - err = blk_execute_rq(disk->gd->queue, disk->gd, rq, 0); + blk_execute_rq(disk->gd->queue, disk->gd, rq, 0); + err = req->errors ? -EIO : 0; blk_put_request(rq); return err; diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c index 2d8290169271..eaf99022bdc6 100644 --- a/drivers/block/virtio_blk.c +++ b/drivers/block/virtio_blk.c @@ -310,7 +310,8 @@ static int virtblk_get_id(struct gendisk *disk, char *id_str) if (err) goto out; - err = blk_execute_rq(vblk->disk->queue, vblk->disk, req, false); + blk_execute_rq(vblk->disk->queue, vblk->disk, req, false); + err = req->errors ? -EIO : 0; out: blk_put_request(req); return err; diff --git a/drivers/cdrom/cdrom.c b/drivers/cdrom/cdrom.c index 87739649eac2..308501730ab3 100644 --- a/drivers/cdrom/cdrom.c +++ b/drivers/cdrom/cdrom.c @@ -2218,7 +2218,8 @@ static int cdrom_read_cdda_bpc(struct cdrom_device_info *cdi, __u8 __user *ubuf, rq->timeout = 60 * HZ; bio = rq->bio; - if (blk_execute_rq(q, cdi->disk, rq, 0)) { + blk_execute_rq(q, cdi->disk, rq, 0); + if (rq->errors) { struct request_sense *s = req->sense; ret = -EIO; cdi->last_sense = s->sense_key; diff --git a/drivers/ide/ide-atapi.c b/drivers/ide/ide-atapi.c index feb30061123b..1524797e1776 100644 --- a/drivers/ide/ide-atapi.c +++ b/drivers/ide/ide-atapi.c @@ -107,7 +107,8 @@ int ide_queue_pc_tail(ide_drive_t *drive, struct gendisk *disk, memcpy(scsi_req(rq)->cmd, pc->c, 12); if (drive->media == ide_tape) scsi_req(rq)->cmd[13] = REQ_IDETAPE_PC1; - error = blk_execute_rq(drive->queue, disk, rq, 0); + blk_execute_rq(drive->queue, disk, rq, 0); + error = rq->errors ? -EIO : 0; put_req: blk_put_request(rq); return error; diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c index 74f1b7dc03f7..95c40afa9120 100644 --- a/drivers/ide/ide-cd.c +++ b/drivers/ide/ide-cd.c @@ -452,7 +452,8 @@ int ide_cd_queue_pc(ide_drive_t *drive, const unsigned char *cmd, } } - error = blk_execute_rq(drive->queue, info->disk, rq, 0); + blk_execute_rq(drive->queue, info->disk, rq, 0); + error = rq->errors ? -EIO : 0; if (buffer) *bufflen = scsi_req(rq)->resid_len; diff --git a/drivers/ide/ide-cd_ioctl.c b/drivers/ide/ide-cd_ioctl.c index 9fcefbc8425e..f1ab726bd430 100644 --- a/drivers/ide/ide-cd_ioctl.c +++ b/drivers/ide/ide-cd_ioctl.c @@ -307,7 +307,8 @@ int ide_cdrom_reset(struct cdrom_device_info *cdi) scsi_req_init(rq); ide_req(rq)->type = ATA_PRIV_MISC; rq->rq_flags = RQF_QUIET; - ret = blk_execute_rq(drive->queue, cd->disk, rq, 0); + blk_execute_rq(drive->queue, cd->disk, rq, 0); + ret = rq->errors ? -EIO : 0; blk_put_request(rq); /* * A reset will unlock the door. If it was previously locked, diff --git a/drivers/ide/ide-devsets.c b/drivers/ide/ide-devsets.c index a45dda5386e4..eea6a7cb80b5 100644 --- a/drivers/ide/ide-devsets.c +++ b/drivers/ide/ide-devsets.c @@ -173,8 +173,8 @@ int ide_devset_execute(ide_drive_t *drive, const struct ide_devset *setting, *(int *)&scsi_req(rq)->cmd[1] = arg; rq->special = setting->set; - if (blk_execute_rq(q, NULL, rq, 0)) - ret = rq->errors; + blk_execute_rq(q, NULL, rq, 0); + ret = rq->errors; blk_put_request(rq); return ret; diff --git a/drivers/ide/ide-disk.c b/drivers/ide/ide-disk.c index 186159715b71..7c06237f3479 100644 --- a/drivers/ide/ide-disk.c +++ b/drivers/ide/ide-disk.c @@ -470,7 +470,6 @@ ide_devset_get(multcount, mult_count); static int set_multcount(ide_drive_t *drive, int arg) { struct request *rq; - int error; if (arg < 0 || arg > (drive->id[ATA_ID_MAX_MULTSECT] & 0xff)) return -EINVAL; @@ -484,7 +483,7 @@ static int set_multcount(ide_drive_t *drive, int arg) drive->mult_req = arg; drive->special_flags |= IDE_SFLAG_SET_MULTMODE; - error = blk_execute_rq(drive->queue, NULL, rq, 0); + blk_execute_rq(drive->queue, NULL, rq, 0); blk_put_request(rq); return (drive->mult_count == arg) ? 0 : -EIO; diff --git a/drivers/ide/ide-ioctls.c b/drivers/ide/ide-ioctls.c index 248a3e0ceb46..3e96e531b367 100644 --- a/drivers/ide/ide-ioctls.c +++ b/drivers/ide/ide-ioctls.c @@ -128,7 +128,8 @@ static int ide_cmd_ioctl(ide_drive_t *drive, unsigned long arg) rq = blk_get_request(drive->queue, REQ_OP_DRV_IN, __GFP_RECLAIM); scsi_req_init(rq); ide_req(rq)->type = ATA_PRIV_TASKFILE; - err = blk_execute_rq(drive->queue, NULL, rq, 0); + blk_execute_rq(drive->queue, NULL, rq, 0); + err = rq->errors ? -EIO : 0; blk_put_request(rq); return err; @@ -227,8 +228,8 @@ static int generic_drive_reset(ide_drive_t *drive) ide_req(rq)->type = ATA_PRIV_MISC; scsi_req(rq)->cmd_len = 1; scsi_req(rq)->cmd[0] = REQ_DRIVE_RESET; - if (blk_execute_rq(drive->queue, NULL, rq, 1)) - ret = rq->errors; + blk_execute_rq(drive->queue, NULL, rq, 1); + ret = rq->errors; blk_put_request(rq); return ret; } diff --git a/drivers/ide/ide-park.c b/drivers/ide/ide-park.c index 101aed9a61ca..b4f577016f5a 100644 --- a/drivers/ide/ide-park.c +++ b/drivers/ide/ide-park.c @@ -37,7 +37,8 @@ static void issue_park_cmd(ide_drive_t *drive, unsigned long timeout) scsi_req(rq)->cmd_len = 1; ide_req(rq)->type = ATA_PRIV_MISC; rq->special = &timeout; - rc = blk_execute_rq(q, NULL, rq, 1); + blk_execute_rq(q, NULL, rq, 1); + rc = rq->errors ? -EIO : 0; blk_put_request(rq); if (rc) goto out; diff --git a/drivers/ide/ide-pm.c b/drivers/ide/ide-pm.c index ec951be4b0c8..bf513f886f3c 100644 --- a/drivers/ide/ide-pm.c +++ b/drivers/ide/ide-pm.c @@ -27,7 +27,8 @@ int generic_ide_suspend(struct device *dev, pm_message_t mesg) mesg.event = PM_EVENT_FREEZE; rqpm.pm_state = mesg.event; - ret = blk_execute_rq(drive->queue, NULL, rq, 0); + blk_execute_rq(drive->queue, NULL, rq, 0); + ret = rq->errors ? -EIO : 0; blk_put_request(rq); if (ret == 0 && ide_port_acpi(hwif)) { diff --git a/drivers/ide/ide-taskfile.c b/drivers/ide/ide-taskfile.c index 4c0007cb74e3..78924c7c9478 100644 --- a/drivers/ide/ide-taskfile.c +++ b/drivers/ide/ide-taskfile.c @@ -452,8 +452,8 @@ int ide_raw_taskfile(ide_drive_t *drive, struct ide_cmd *cmd, u8 *buf, rq->special = cmd; cmd->rq = rq; - error = blk_execute_rq(drive->queue, NULL, rq, 0); - + blk_execute_rq(drive->queue, NULL, rq, 0); + error = rq->errors ? -EIO : 0; put_req: blk_put_request(rq); return error; diff --git a/drivers/scsi/osd/osd_initiator.c b/drivers/scsi/osd/osd_initiator.c index 9d0727b2bdec..44e03c3eb250 100644 --- a/drivers/scsi/osd/osd_initiator.c +++ b/drivers/scsi/osd/osd_initiator.c @@ -489,7 +489,10 @@ static void _set_error_resid(struct osd_request *or, struct request *req, int osd_execute_request(struct osd_request *or) { - int error = blk_execute_rq(or->request->q, NULL, or->request, 0); + int error; + + blk_execute_rq(or->request->q, NULL, or->request, 0); + error = or->request ? -EIO : 0; _set_error_resid(or, or->request, error); return error; diff --git a/fs/nfsd/blocklayout.c b/fs/nfsd/blocklayout.c index 92b4b41d19d2..9f618b77ffee 100644 --- a/fs/nfsd/blocklayout.c +++ b/fs/nfsd/blocklayout.c @@ -242,10 +242,11 @@ static int nfsd4_scsi_identify_device(struct block_device *bdev, req->cmd[4] = bufflen & 0xff; req->cmd_len = COMMAND_SIZE(INQUIRY); - error = blk_execute_rq(rq->q, NULL, rq, 1); - if (error) { + blk_execute_rq(rq->q, NULL, rq, 1); + if (rq->errors) { pr_err("pNFS: INQUIRY 0x83 failed with: %x\n", rq->errors); + error = -EIO; goto out_put_request; } diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index ec993573e0a8..5986e1250d7d 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -969,7 +969,7 @@ extern int blk_rq_map_kern(struct request_queue *, struct request *, void *, uns extern int blk_rq_map_user_iov(struct request_queue *, struct request *, struct rq_map_data *, const struct iov_iter *, gfp_t); -extern int blk_execute_rq(struct request_queue *, struct gendisk *, +extern void blk_execute_rq(struct request_queue *, struct gendisk *, struct request *, int); extern void blk_execute_rq_nowait(struct request_queue *, struct gendisk *, struct request *, int, rq_end_io_fn *); -- 2.11.0 From mboxrd@z Thu Jan 1 00:00:00 1970 From: hch@bombadil.infradead.org (Christoph Hellwig) Date: Tue, 18 Apr 2017 08:52:07 -0700 Subject: block: remove the blk_execute_rq return value In-Reply-To: <20170418155229.5977-1-hch@bombadil.infradead.org> References: <20170418155229.5977-1-hch@bombadil.infradead.org> Message-ID: <20170418155229.5977-2-hch@bombadil.infradead.org> From: Christoph Hellwig The function only returns -EIO if rq->errors is non-zero, which is not very useful and lets a large number of callers ignore the return value. Just let the callers figure out their error themselves. Signed-off-by: Christoph Hellwig Reviewed-by: Johannes Thumshirn --- block/blk-exec.c | 8 +------- block/scsi_ioctl.c | 3 ++- drivers/block/paride/pd.c | 3 ++- drivers/block/virtio_blk.c | 3 ++- drivers/cdrom/cdrom.c | 3 ++- drivers/ide/ide-atapi.c | 3 ++- drivers/ide/ide-cd.c | 3 ++- drivers/ide/ide-cd_ioctl.c | 3 ++- drivers/ide/ide-devsets.c | 4 ++-- drivers/ide/ide-disk.c | 3 +-- drivers/ide/ide-ioctls.c | 7 ++++--- drivers/ide/ide-park.c | 3 ++- drivers/ide/ide-pm.c | 3 ++- drivers/ide/ide-taskfile.c | 4 ++-- drivers/scsi/osd/osd_initiator.c | 5 ++++- fs/nfsd/blocklayout.c | 5 +++-- include/linux/blkdev.h | 2 +- 17 files changed, 36 insertions(+), 29 deletions(-) diff --git a/block/blk-exec.c b/block/blk-exec.c index 8cd0e9bc8dc8..afa383248c7c 100644 --- a/block/blk-exec.c +++ b/block/blk-exec.c @@ -92,11 +92,10 @@ EXPORT_SYMBOL_GPL(blk_execute_rq_nowait); * Insert a fully prepared request at the back of the I/O scheduler queue * for execution and wait for completion. */ -int blk_execute_rq(struct request_queue *q, struct gendisk *bd_disk, +void blk_execute_rq(struct request_queue *q, struct gendisk *bd_disk, struct request *rq, int at_head) { DECLARE_COMPLETION_ONSTACK(wait); - int err = 0; unsigned long hang_check; rq->end_io_data = &wait; @@ -108,10 +107,5 @@ int blk_execute_rq(struct request_queue *q, struct gendisk *bd_disk, while (!wait_for_completion_io_timeout(&wait, hang_check * (HZ/2))); else wait_for_completion_io(&wait); - - if (rq->errors) - err = -EIO; - - return err; } EXPORT_SYMBOL(blk_execute_rq); diff --git a/block/scsi_ioctl.c b/block/scsi_ioctl.c index 82a43bb19967..b1352143f12f 100644 --- a/block/scsi_ioctl.c +++ b/block/scsi_ioctl.c @@ -547,7 +547,8 @@ static int __blk_send_generic(struct request_queue *q, struct gendisk *bd_disk, scsi_req(rq)->cmd[0] = cmd; scsi_req(rq)->cmd[4] = data; scsi_req(rq)->cmd_len = 6; - err = blk_execute_rq(q, bd_disk, rq, 0); + blk_execute_rq(q, bd_disk, rq, 0); + err = rq->errors ? -EIO : 0; blk_put_request(rq); return err; diff --git a/drivers/block/paride/pd.c b/drivers/block/paride/pd.c index b05e151c9b38..82c6d02193ae 100644 --- a/drivers/block/paride/pd.c +++ b/drivers/block/paride/pd.c @@ -747,7 +747,8 @@ static int pd_special_command(struct pd_unit *disk, rq->special = func; - err = blk_execute_rq(disk->gd->queue, disk->gd, rq, 0); + blk_execute_rq(disk->gd->queue, disk->gd, rq, 0); + err = req->errors ? -EIO : 0; blk_put_request(rq); return err; diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c index 2d8290169271..eaf99022bdc6 100644 --- a/drivers/block/virtio_blk.c +++ b/drivers/block/virtio_blk.c @@ -310,7 +310,8 @@ static int virtblk_get_id(struct gendisk *disk, char *id_str) if (err) goto out; - err = blk_execute_rq(vblk->disk->queue, vblk->disk, req, false); + blk_execute_rq(vblk->disk->queue, vblk->disk, req, false); + err = req->errors ? -EIO : 0; out: blk_put_request(req); return err; diff --git a/drivers/cdrom/cdrom.c b/drivers/cdrom/cdrom.c index 87739649eac2..308501730ab3 100644 --- a/drivers/cdrom/cdrom.c +++ b/drivers/cdrom/cdrom.c @@ -2218,7 +2218,8 @@ static int cdrom_read_cdda_bpc(struct cdrom_device_info *cdi, __u8 __user *ubuf, rq->timeout = 60 * HZ; bio = rq->bio; - if (blk_execute_rq(q, cdi->disk, rq, 0)) { + blk_execute_rq(q, cdi->disk, rq, 0); + if (rq->errors) { struct request_sense *s = req->sense; ret = -EIO; cdi->last_sense = s->sense_key; diff --git a/drivers/ide/ide-atapi.c b/drivers/ide/ide-atapi.c index feb30061123b..1524797e1776 100644 --- a/drivers/ide/ide-atapi.c +++ b/drivers/ide/ide-atapi.c @@ -107,7 +107,8 @@ int ide_queue_pc_tail(ide_drive_t *drive, struct gendisk *disk, memcpy(scsi_req(rq)->cmd, pc->c, 12); if (drive->media == ide_tape) scsi_req(rq)->cmd[13] = REQ_IDETAPE_PC1; - error = blk_execute_rq(drive->queue, disk, rq, 0); + blk_execute_rq(drive->queue, disk, rq, 0); + error = rq->errors ? -EIO : 0; put_req: blk_put_request(rq); return error; diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c index 74f1b7dc03f7..95c40afa9120 100644 --- a/drivers/ide/ide-cd.c +++ b/drivers/ide/ide-cd.c @@ -452,7 +452,8 @@ int ide_cd_queue_pc(ide_drive_t *drive, const unsigned char *cmd, } } - error = blk_execute_rq(drive->queue, info->disk, rq, 0); + blk_execute_rq(drive->queue, info->disk, rq, 0); + error = rq->errors ? -EIO : 0; if (buffer) *bufflen = scsi_req(rq)->resid_len; diff --git a/drivers/ide/ide-cd_ioctl.c b/drivers/ide/ide-cd_ioctl.c index 9fcefbc8425e..f1ab726bd430 100644 --- a/drivers/ide/ide-cd_ioctl.c +++ b/drivers/ide/ide-cd_ioctl.c @@ -307,7 +307,8 @@ int ide_cdrom_reset(struct cdrom_device_info *cdi) scsi_req_init(rq); ide_req(rq)->type = ATA_PRIV_MISC; rq->rq_flags = RQF_QUIET; - ret = blk_execute_rq(drive->queue, cd->disk, rq, 0); + blk_execute_rq(drive->queue, cd->disk, rq, 0); + ret = rq->errors ? -EIO : 0; blk_put_request(rq); /* * A reset will unlock the door. If it was previously locked, diff --git a/drivers/ide/ide-devsets.c b/drivers/ide/ide-devsets.c index a45dda5386e4..eea6a7cb80b5 100644 --- a/drivers/ide/ide-devsets.c +++ b/drivers/ide/ide-devsets.c @@ -173,8 +173,8 @@ int ide_devset_execute(ide_drive_t *drive, const struct ide_devset *setting, *(int *)&scsi_req(rq)->cmd[1] = arg; rq->special = setting->set; - if (blk_execute_rq(q, NULL, rq, 0)) - ret = rq->errors; + blk_execute_rq(q, NULL, rq, 0); + ret = rq->errors; blk_put_request(rq); return ret; diff --git a/drivers/ide/ide-disk.c b/drivers/ide/ide-disk.c index 186159715b71..7c06237f3479 100644 --- a/drivers/ide/ide-disk.c +++ b/drivers/ide/ide-disk.c @@ -470,7 +470,6 @@ ide_devset_get(multcount, mult_count); static int set_multcount(ide_drive_t *drive, int arg) { struct request *rq; - int error; if (arg < 0 || arg > (drive->id[ATA_ID_MAX_MULTSECT] & 0xff)) return -EINVAL; @@ -484,7 +483,7 @@ static int set_multcount(ide_drive_t *drive, int arg) drive->mult_req = arg; drive->special_flags |= IDE_SFLAG_SET_MULTMODE; - error = blk_execute_rq(drive->queue, NULL, rq, 0); + blk_execute_rq(drive->queue, NULL, rq, 0); blk_put_request(rq); return (drive->mult_count == arg) ? 0 : -EIO; diff --git a/drivers/ide/ide-ioctls.c b/drivers/ide/ide-ioctls.c index 248a3e0ceb46..3e96e531b367 100644 --- a/drivers/ide/ide-ioctls.c +++ b/drivers/ide/ide-ioctls.c @@ -128,7 +128,8 @@ static int ide_cmd_ioctl(ide_drive_t *drive, unsigned long arg) rq = blk_get_request(drive->queue, REQ_OP_DRV_IN, __GFP_RECLAIM); scsi_req_init(rq); ide_req(rq)->type = ATA_PRIV_TASKFILE; - err = blk_execute_rq(drive->queue, NULL, rq, 0); + blk_execute_rq(drive->queue, NULL, rq, 0); + err = rq->errors ? -EIO : 0; blk_put_request(rq); return err; @@ -227,8 +228,8 @@ static int generic_drive_reset(ide_drive_t *drive) ide_req(rq)->type = ATA_PRIV_MISC; scsi_req(rq)->cmd_len = 1; scsi_req(rq)->cmd[0] = REQ_DRIVE_RESET; - if (blk_execute_rq(drive->queue, NULL, rq, 1)) - ret = rq->errors; + blk_execute_rq(drive->queue, NULL, rq, 1); + ret = rq->errors; blk_put_request(rq); return ret; } diff --git a/drivers/ide/ide-park.c b/drivers/ide/ide-park.c index 101aed9a61ca..b4f577016f5a 100644 --- a/drivers/ide/ide-park.c +++ b/drivers/ide/ide-park.c @@ -37,7 +37,8 @@ static void issue_park_cmd(ide_drive_t *drive, unsigned long timeout) scsi_req(rq)->cmd_len = 1; ide_req(rq)->type = ATA_PRIV_MISC; rq->special = &timeout; - rc = blk_execute_rq(q, NULL, rq, 1); + blk_execute_rq(q, NULL, rq, 1); + rc = rq->errors ? -EIO : 0; blk_put_request(rq); if (rc) goto out; diff --git a/drivers/ide/ide-pm.c b/drivers/ide/ide-pm.c index ec951be4b0c8..bf513f886f3c 100644 --- a/drivers/ide/ide-pm.c +++ b/drivers/ide/ide-pm.c @@ -27,7 +27,8 @@ int generic_ide_suspend(struct device *dev, pm_message_t mesg) mesg.event = PM_EVENT_FREEZE; rqpm.pm_state = mesg.event; - ret = blk_execute_rq(drive->queue, NULL, rq, 0); + blk_execute_rq(drive->queue, NULL, rq, 0); + ret = rq->errors ? -EIO : 0; blk_put_request(rq); if (ret == 0 && ide_port_acpi(hwif)) { diff --git a/drivers/ide/ide-taskfile.c b/drivers/ide/ide-taskfile.c index 4c0007cb74e3..78924c7c9478 100644 --- a/drivers/ide/ide-taskfile.c +++ b/drivers/ide/ide-taskfile.c @@ -452,8 +452,8 @@ int ide_raw_taskfile(ide_drive_t *drive, struct ide_cmd *cmd, u8 *buf, rq->special = cmd; cmd->rq = rq; - error = blk_execute_rq(drive->queue, NULL, rq, 0); - + blk_execute_rq(drive->queue, NULL, rq, 0); + error = rq->errors ? -EIO : 0; put_req: blk_put_request(rq); return error; diff --git a/drivers/scsi/osd/osd_initiator.c b/drivers/scsi/osd/osd_initiator.c index 9d0727b2bdec..44e03c3eb250 100644 --- a/drivers/scsi/osd/osd_initiator.c +++ b/drivers/scsi/osd/osd_initiator.c @@ -489,7 +489,10 @@ static void _set_error_resid(struct osd_request *or, struct request *req, int osd_execute_request(struct osd_request *or) { - int error = blk_execute_rq(or->request->q, NULL, or->request, 0); + int error; + + blk_execute_rq(or->request->q, NULL, or->request, 0); + error = or->request ? -EIO : 0; _set_error_resid(or, or->request, error); return error; diff --git a/fs/nfsd/blocklayout.c b/fs/nfsd/blocklayout.c index 92b4b41d19d2..9f618b77ffee 100644 --- a/fs/nfsd/blocklayout.c +++ b/fs/nfsd/blocklayout.c @@ -242,10 +242,11 @@ static int nfsd4_scsi_identify_device(struct block_device *bdev, req->cmd[4] = bufflen & 0xff; req->cmd_len = COMMAND_SIZE(INQUIRY); - error = blk_execute_rq(rq->q, NULL, rq, 1); - if (error) { + blk_execute_rq(rq->q, NULL, rq, 1); + if (rq->errors) { pr_err("pNFS: INQUIRY 0x83 failed with: %x\n", rq->errors); + error = -EIO; goto out_put_request; } diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index ec993573e0a8..5986e1250d7d 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -969,7 +969,7 @@ extern int blk_rq_map_kern(struct request_queue *, struct request *, void *, uns extern int blk_rq_map_user_iov(struct request_queue *, struct request *, struct rq_map_data *, const struct iov_iter *, gfp_t); -extern int blk_execute_rq(struct request_queue *, struct gendisk *, +extern void blk_execute_rq(struct request_queue *, struct gendisk *, struct request *, int); extern void blk_execute_rq_nowait(struct request_queue *, struct gendisk *, struct request *, int, rq_end_io_fn *); -- 2.11.0