diff options
Diffstat (limited to 'drivers/scsi/sd.c')
| -rw-r--r-- | drivers/scsi/sd.c | 66 |
1 files changed, 34 insertions, 32 deletions
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c index 5b8668accf8e..0252d3f6bed1 100644 --- a/drivers/scsi/sd.c +++ b/drivers/scsi/sd.c @@ -106,7 +106,7 @@ static void sd_config_discard(struct scsi_disk *sdkp, struct queue_limits *lim, unsigned int mode); static void sd_config_write_same(struct scsi_disk *sdkp, struct queue_limits *lim); -static int sd_revalidate_disk(struct gendisk *); +static void sd_revalidate_disk(struct gendisk *); static void sd_unlock_native_capacity(struct gendisk *disk); static void sd_shutdown(struct device *); static void scsi_disk_release(struct device *cdev); @@ -1599,9 +1599,9 @@ static void sd_release(struct gendisk *disk) scsi_device_put(sdev); } -static int sd_getgeo(struct block_device *bdev, struct hd_geometry *geo) +static int sd_getgeo(struct gendisk *disk, struct hd_geometry *geo) { - struct scsi_disk *sdkp = scsi_disk(bdev->bd_disk); + struct scsi_disk *sdkp = scsi_disk(disk); struct scsi_device *sdp = sdkp->device; struct Scsi_Host *host = sdp->host; sector_t capacity = logical_to_sectors(sdp, sdkp->capacity); @@ -1614,9 +1614,9 @@ static int sd_getgeo(struct block_device *bdev, struct hd_geometry *geo) /* override with calculated, extended default, or driver values */ if (host->hostt->bios_param) - host->hostt->bios_param(sdp, bdev, capacity, diskinfo); + host->hostt->bios_param(sdp, disk, capacity, diskinfo); else - scsicam_bios_param(bdev, capacity, diskinfo); + scsicam_bios_param(disk, capacity, diskinfo); geo->heads = diskinfo[0]; geo->sectors = diskinfo[1]; @@ -3691,13 +3691,13 @@ static void sd_read_block_zero(struct scsi_disk *sdkp) * performs disk spin up, read_capacity, etc. * @disk: struct gendisk we care about **/ -static int sd_revalidate_disk(struct gendisk *disk) +static void sd_revalidate_disk(struct gendisk *disk) { struct scsi_disk *sdkp = scsi_disk(disk); struct scsi_device *sdp = sdkp->device; sector_t old_capacity = sdkp->capacity; - struct queue_limits lim; - unsigned char *buffer; + struct queue_limits *lim = NULL; + unsigned char *buffer = NULL; unsigned int dev_max; int err; @@ -3709,25 +3709,26 @@ static int sd_revalidate_disk(struct gendisk *disk) * of the other niceties. */ if (!scsi_device_online(sdp)) - goto out; + return; + + lim = kmalloc(sizeof(*lim), GFP_KERNEL); + if (!lim) + return; buffer = kmalloc(SD_BUF_SIZE, GFP_KERNEL); - if (!buffer) { - sd_printk(KERN_WARNING, sdkp, "sd_revalidate_disk: Memory " - "allocation failure.\n"); + if (!buffer) goto out; - } sd_spinup_disk(sdkp); - lim = queue_limits_start_update(sdkp->disk->queue); + *lim = queue_limits_start_update(sdkp->disk->queue); /* * Without media there is no reason to ask; moreover, some devices * react badly if we do. */ if (sdkp->media_present) { - sd_read_capacity(sdkp, &lim, buffer); + sd_read_capacity(sdkp, lim, buffer); /* * Some USB/UAS devices return generic values for mode pages * until the media has been accessed. Trigger a READ operation @@ -3741,17 +3742,17 @@ static int sd_revalidate_disk(struct gendisk *disk) * cause this to be updated correctly and any device which * doesn't support it should be treated as rotational. */ - lim.features |= (BLK_FEAT_ROTATIONAL | BLK_FEAT_ADD_RANDOM); + lim->features |= (BLK_FEAT_ROTATIONAL | BLK_FEAT_ADD_RANDOM); if (scsi_device_supports_vpd(sdp)) { sd_read_block_provisioning(sdkp); - sd_read_block_limits(sdkp, &lim); + sd_read_block_limits(sdkp, lim); sd_read_block_limits_ext(sdkp); - sd_read_block_characteristics(sdkp, &lim); - sd_zbc_read_zones(sdkp, &lim, buffer); + sd_read_block_characteristics(sdkp, lim); + sd_zbc_read_zones(sdkp, lim, buffer); } - sd_config_discard(sdkp, &lim, sd_discard_mode(sdkp)); + sd_config_discard(sdkp, lim, sd_discard_mode(sdkp)); sd_print_capacity(sdkp, old_capacity); @@ -3761,47 +3762,46 @@ static int sd_revalidate_disk(struct gendisk *disk) sd_read_app_tag_own(sdkp, buffer); sd_read_write_same(sdkp, buffer); sd_read_security(sdkp, buffer); - sd_config_protection(sdkp, &lim); + sd_config_protection(sdkp, lim); } /* * We now have all cache related info, determine how we deal * with flush requests. */ - sd_set_flush_flag(sdkp, &lim); + sd_set_flush_flag(sdkp, lim); /* Initial block count limit based on CDB TRANSFER LENGTH field size. */ dev_max = sdp->use_16_for_rw ? SD_MAX_XFER_BLOCKS : SD_DEF_XFER_BLOCKS; /* Some devices report a maximum block count for READ/WRITE requests. */ dev_max = min_not_zero(dev_max, sdkp->max_xfer_blocks); - lim.max_dev_sectors = logical_to_sectors(sdp, dev_max); + lim->max_dev_sectors = logical_to_sectors(sdp, dev_max); if (sd_validate_min_xfer_size(sdkp)) - lim.io_min = logical_to_bytes(sdp, sdkp->min_xfer_blocks); + lim->io_min = logical_to_bytes(sdp, sdkp->min_xfer_blocks); else - lim.io_min = 0; + lim->io_min = 0; /* * Limit default to SCSI host optimal sector limit if set. There may be * an impact on performance for when the size of a request exceeds this * host limit. */ - lim.io_opt = sdp->host->opt_sectors << SECTOR_SHIFT; + lim->io_opt = sdp->host->opt_sectors << SECTOR_SHIFT; if (sd_validate_opt_xfer_size(sdkp, dev_max)) { - lim.io_opt = min_not_zero(lim.io_opt, + lim->io_opt = min_not_zero(lim->io_opt, logical_to_bytes(sdp, sdkp->opt_xfer_blocks)); } sdkp->first_scan = 0; set_capacity_and_notify(disk, logical_to_sectors(sdp, sdkp->capacity)); - sd_config_write_same(sdkp, &lim); - kfree(buffer); + sd_config_write_same(sdkp, lim); - err = queue_limits_commit_update_frozen(sdkp->disk->queue, &lim); + err = queue_limits_commit_update_frozen(sdkp->disk->queue, lim); if (err) - return err; + goto out; /* * Query concurrent positioning ranges after @@ -3820,7 +3820,9 @@ static int sd_revalidate_disk(struct gendisk *disk) set_capacity_and_notify(disk, 0); out: - return 0; + kfree(buffer); + kfree(lim); + } /** |