summaryrefslogtreecommitdiffstats
path: root/drivers/scsi/sd.c
diff options
context:
space:
mode:
authorAl Viro <viro@zeniv.linux.org.uk>2016-06-30 23:34:49 -0400
committerAl Viro <viro@zeniv.linux.org.uk>2016-06-30 23:34:49 -0400
commitb223f4e215b32849b841e750e83a915b670070f5 (patch)
tree75340f6305028de331a17255018869822b3886d2 /drivers/scsi/sd.c
parentf4e6d844bdc142322905d137a9e44e07eee43c5c (diff)
parent0cac643c102c0632dc2cc81e2490b0fec1cac0af (diff)
downloadlinux-b223f4e215b32849b841e750e83a915b670070f5.tar.gz
linux-b223f4e215b32849b841e750e83a915b670070f5.tar.bz2
linux-b223f4e215b32849b841e750e83a915b670070f5.zip
Merge branch 'd_real' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs into work.misc
Diffstat (limited to 'drivers/scsi/sd.c')
-rw-r--r--drivers/scsi/sd.c17
1 files changed, 11 insertions, 6 deletions
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index 428c03ef02b2..60bff78e9ead 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -1398,11 +1398,15 @@ static int media_not_present(struct scsi_disk *sdkp,
**/
static unsigned int sd_check_events(struct gendisk *disk, unsigned int clearing)
{
- struct scsi_disk *sdkp = scsi_disk(disk);
- struct scsi_device *sdp = sdkp->device;
+ struct scsi_disk *sdkp = scsi_disk_get(disk);
+ struct scsi_device *sdp;
struct scsi_sense_hdr *sshdr = NULL;
int retval;
+ if (!sdkp)
+ return 0;
+
+ sdp = sdkp->device;
SCSI_LOG_HLQUEUE(3, sd_printk(KERN_INFO, sdkp, "sd_check_events\n"));
/*
@@ -1459,6 +1463,7 @@ out:
kfree(sshdr);
retval = sdp->changed ? DISK_EVENT_MEDIA_CHANGE : 0;
sdp->changed = 0;
+ scsi_disk_put(sdkp);
return retval;
}
@@ -2862,10 +2867,10 @@ static int sd_revalidate_disk(struct gendisk *disk)
if (sdkp->opt_xfer_blocks &&
sdkp->opt_xfer_blocks <= dev_max &&
sdkp->opt_xfer_blocks <= SD_DEF_XFER_BLOCKS &&
- sdkp->opt_xfer_blocks * sdp->sector_size >= PAGE_SIZE)
- rw_max = q->limits.io_opt =
- sdkp->opt_xfer_blocks * sdp->sector_size;
- else
+ logical_to_bytes(sdp, sdkp->opt_xfer_blocks) >= PAGE_SIZE) {
+ q->limits.io_opt = logical_to_bytes(sdp, sdkp->opt_xfer_blocks);
+ rw_max = logical_to_sectors(sdp, sdkp->opt_xfer_blocks);
+ } else
rw_max = BLK_DEF_MAX_SECTORS;
/* Combine with controller limits */