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authorLinus Torvalds <torvalds@linux-foundation.org>2017-11-14 16:23:44 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2017-11-14 16:23:44 -0800
commit670ffccb2f9183eb6cb32fe92257aea52b3f8a7d (patch)
tree54962412913a69e17cc680c57f3e26f7305d99d2 /drivers/scsi/sd.c
parent47f521ba18190e4bfbb65ead3977af5756884427 (diff)
parent341b2aa83368e6f23bf0cc3d04604896337ad7cb (diff)
downloadlinux-670ffccb2f9183eb6cb32fe92257aea52b3f8a7d.tar.bz2
Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI updates from James Bottomley: "This is mostly updates of the usual suspects: lpfc, qla2xxx, hisi_sas, megaraid_sas, pm80xx, mpt3sas, be2iscsi, hpsa. and a host of minor updates. There's no major behaviour change or additions to the core in all of this, so the potential for regressions should be small (biggest potential being in the scsi error handler changes)" * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (203 commits) scsi: lpfc: Fix hard lock up NMI in els timeout handling. scsi: mpt3sas: remove a stray KERN_INFO scsi: mpt3sas: cleanup _scsih_pcie_enumeration_event() scsi: aacraid: use timespec64 instead of timeval scsi: scsi_transport_fc: add 64GBIT and 128GBIT port speed definitions scsi: qla2xxx: Suppress a kernel complaint in qla_init_base_qpair() scsi: mpt3sas: fix dma_addr_t casts scsi: be2iscsi: Use kasprintf scsi: storvsc: Avoid excessive host scan on controller change scsi: lpfc: fix kzalloc-simple.cocci warnings scsi: mpt3sas: Update mpt3sas driver version. scsi: mpt3sas: Fix sparse warnings scsi: mpt3sas: Fix nvme drives checking for tlr. scsi: mpt3sas: NVMe drive support for BTDHMAPPING ioctl command and log info scsi: mpt3sas: Add-Task-management-debug-info-for-NVMe-drives. scsi: mpt3sas: scan and add nvme device after controller reset scsi: mpt3sas: Set NVMe device queue depth as 128 scsi: mpt3sas: Handle NVMe PCIe device related events generated from firmware. scsi: mpt3sas: API's to remove nvme drive from sml scsi: mpt3sas: API 's to support NVMe drive addition to SML ...
Diffstat (limited to 'drivers/scsi/sd.c')
-rw-r--r--drivers/scsi/sd.c32
1 files changed, 30 insertions, 2 deletions
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index d175c5c5ccf8..24fe68522716 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -231,11 +231,15 @@ manage_start_stop_store(struct device *dev, struct device_attribute *attr,
{
struct scsi_disk *sdkp = to_scsi_disk(dev);
struct scsi_device *sdp = sdkp->device;
+ bool v;
if (!capable(CAP_SYS_ADMIN))
return -EACCES;
- sdp->manage_start_stop = simple_strtoul(buf, NULL, 10);
+ if (kstrtobool(buf, &v))
+ return -EINVAL;
+
+ sdp->manage_start_stop = v;
return count;
}
@@ -253,6 +257,7 @@ static ssize_t
allow_restart_store(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
+ bool v;
struct scsi_disk *sdkp = to_scsi_disk(dev);
struct scsi_device *sdp = sdkp->device;
@@ -262,7 +267,10 @@ allow_restart_store(struct device *dev, struct device_attribute *attr,
if (sdp->type != TYPE_DISK && sdp->type != TYPE_ZBC)
return -EINVAL;
- sdp->allow_restart = simple_strtoul(buf, NULL, 10);
+ if (kstrtobool(buf, &v))
+ return -EINVAL;
+
+ sdp->allow_restart = v;
return count;
}
@@ -906,6 +914,26 @@ static void sd_config_write_same(struct scsi_disk *sdkp)
else
sdkp->zeroing_mode = SD_ZERO_WRITE;
+ if (sdkp->max_ws_blocks &&
+ sdkp->physical_block_size > logical_block_size) {
+ /*
+ * Reporting a maximum number of blocks that is not aligned
+ * on the device physical size would cause a large write same
+ * request to be split into physically unaligned chunks by
+ * __blkdev_issue_write_zeroes() and __blkdev_issue_write_same()
+ * even if the caller of these functions took care to align the
+ * large request. So make sure the maximum reported is aligned
+ * to the device physical block size. This is only an optional
+ * optimization for regular disks, but this is mandatory to
+ * avoid failure of large write same requests directed at
+ * sequential write required zones of host-managed ZBC disks.
+ */
+ sdkp->max_ws_blocks =
+ round_down(sdkp->max_ws_blocks,
+ bytes_to_logical(sdkp->device,
+ sdkp->physical_block_size));
+ }
+
out:
blk_queue_max_write_same_sectors(q, sdkp->max_ws_blocks *
(logical_block_size >> 9));