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SCSI fixes on 20180314 

This is four patches, consisting of one regression from the merge
 window (qla2xxx) one lonstanding memory leak (sd_zbc) one event queue
 mislabelling which we want to eliminate to discourage the pattern
 (mpt3sas) and one behaviour change because re-reading the partition
 table shouldn't clear the ro flag.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.vnet.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "This is four patches, consisting of one regression from the merge
  window (qla2xxx), one long-standing memory leak (sd_zbc), one event
  queue mislabelling which we want to eliminate to discourage the
  pattern (mpt3sas), and one behaviour change because re-reading the
  partition table shouldn't clear the ro flag"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: sd: Keep disk read-only when re-reading partition
  scsi: qla2xxx: Fix crashes in qla2x00_probe_one on probe failure
  scsi: sd_zbc: Fix potential memory leak
  scsi: mpt3sas: Do not mark fw_event workqueue as WQ_MEM_RECLAIM
This commit is contained in:
Linus Torvalds 2018-03-14 17:02:49 -07:00
parent 8df3aaaf9b 20bd1d026a
commit 0aa3fdb8b3
4 changed files with 55 additions and 44 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/scsi/mpt3sas/mpt3sas_scsih.c
View File

@ -10558,7 +10558,7 @@ _scsih_probe(struct pci_dev *pdev, const struct pci_device_id *id)
snprintf(ioc->firmware_event_name, sizeof(ioc->firmware_event_name),
"fw_event_%s%d", ioc->driver_name, ioc->id);
ioc->firmware_event_thread = alloc_ordered_workqueue(
ioc->firmware_event_name, WQ_MEM_RECLAIM);
ioc->firmware_event_name, 0);
if (!ioc->firmware_event_thread) {
pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);

45
drivers/scsi/qla2xxx/qla_os.c
View File

@ -454,7 +454,7 @@ static int qla2x00_alloc_queues(struct qla_hw_data *ha, struct req_que *req,
ha->req_q_map[0] = req;
set_bit(0, ha->rsp_qid_map);
set_bit(0, ha->req_qid_map);
return 1;
return 0;
fail_qpair_map:
kfree(ha->base_qpair);
@ -471,6 +471,9 @@ static int qla2x00_alloc_queues(struct qla_hw_data *ha, struct req_que *req,
static void qla2x00_free_req_que(struct qla_hw_data *ha, struct req_que *req)
{
if (!ha->req_q_map)
return;
if (IS_QLAFX00(ha)) {
if (req && req->ring_fx00)
dma_free_coherent(&ha->pdev->dev,
@ -481,14 +484,17 @@ static void qla2x00_free_req_que(struct qla_hw_data *ha, struct req_que *req)
(req->length + 1) * sizeof(request_t),
req->ring, req->dma);
if (req)
if (req) {
kfree(req->outstanding_cmds);
kfree(req);
}
}
static void qla2x00_free_rsp_que(struct qla_hw_data *ha, struct rsp_que *rsp)
{
if (!ha->rsp_q_map)
return;
if (IS_QLAFX00(ha)) {
if (rsp && rsp->ring)
dma_free_coherent(&ha->pdev->dev,
@ -499,6 +505,7 @@ static void qla2x00_free_rsp_que(struct qla_hw_data *ha, struct rsp_que *rsp)
(rsp->length + 1) * sizeof(response_t),
rsp->ring, rsp->dma);
}
if (rsp)
kfree(rsp);
}
@ -1723,6 +1730,8 @@ __qla2x00_abort_all_cmds(struct qla_qpair *qp, int res)
struct qla_tgt_cmd *cmd;
uint8_t trace = 0;
if (!ha->req_q_map)
return;
spin_lock_irqsave(qp->qp_lock_ptr, flags);
req = qp->req;
for (cnt = 1; cnt < req->num_outstanding_cmds; cnt++) {
@ -3095,14 +3104,14 @@ qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
/* Set up the irqs */
ret = qla2x00_request_irqs(ha, rsp);
if (ret)
goto probe_hw_failed;
goto probe_failed;
/* Alloc arrays of request and response ring ptrs */
if (!qla2x00_alloc_queues(ha, req, rsp)) {
if (qla2x00_alloc_queues(ha, req, rsp)) {
ql_log(ql_log_fatal, base_vha, 0x003d,
"Failed to allocate memory for queue pointers..."
"aborting.\n");
goto probe_init_failed;
goto probe_failed;
}
if (ha->mqenable && shost_use_blk_mq(host)) {
@ -3387,15 +3396,6 @@ qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
return 0;
probe_init_failed:
qla2x00_free_req_que(ha, req);
ha->req_q_map[0] = NULL;
clear_bit(0, ha->req_qid_map);
qla2x00_free_rsp_que(ha, rsp);
ha->rsp_q_map[0] = NULL;
clear_bit(0, ha->rsp_qid_map);
ha->max_req_queues = ha->max_rsp_queues = 0;
probe_failed:
if (base_vha->timer_active)
qla2x00_stop_timer(base_vha);
@ -4508,10 +4508,16 @@ qla2x00_mem_free(struct qla_hw_data *ha)
if (ha->init_cb)
dma_free_coherent(&ha->pdev->dev, ha->init_cb_size,
ha->init_cb, ha->init_cb_dma);
if (ha->optrom_buffer)
vfree(ha->optrom_buffer);
if (ha->nvram)
kfree(ha->nvram);
if (ha->npiv_info)
kfree(ha->npiv_info);
if (ha->swl)
kfree(ha->swl);
if (ha->loop_id_map)
kfree(ha->loop_id_map);
ha->srb_mempool = NULL;
@ -4528,6 +4534,15 @@ qla2x00_mem_free(struct qla_hw_data *ha)
ha->ex_init_cb_dma = 0;
ha->async_pd = NULL;
ha->async_pd_dma = 0;
ha->loop_id_map = NULL;
ha->npiv_info = NULL;
ha->optrom_buffer = NULL;
ha->swl = NULL;
ha->nvram = NULL;
ha->mctp_dump = NULL;
ha->dcbx_tlv = NULL;
ha->xgmac_data = NULL;
ha->sfp_data = NULL;
ha->s_dma_pool = NULL;
ha->dl_dma_pool = NULL;

3
drivers/scsi/sd.c
View File

@ -2595,6 +2595,7 @@ sd_read_write_protect_flag(struct scsi_disk *sdkp, unsigned char *buffer)
int res;
struct scsi_device *sdp = sdkp->device;
struct scsi_mode_data data;
int disk_ro = get_disk_ro(sdkp->disk);
int old_wp = sdkp->write_prot;
set_disk_ro(sdkp->disk, 0);
@ -2635,7 +2636,7 @@ sd_read_write_protect_flag(struct scsi_disk *sdkp, unsigned char *buffer)
"Test WP failed, assume Write Enabled\n");
} else {
sdkp->write_prot = ((data.device_specific & 0x80) != 0);
set_disk_ro(sdkp->disk, sdkp->write_prot);
set_disk_ro(sdkp->disk, sdkp->write_prot || disk_ro);
if (sdkp->first_scan || old_wp != sdkp->write_prot) {
sd_printk(KERN_NOTICE, sdkp, "Write Protect is %s\n",
sdkp->write_prot ? "on" : "off");

35
drivers/scsi/sd_zbc.c
View File

@ -403,7 +403,7 @@ static int sd_zbc_check_capacity(struct scsi_disk *sdkp, unsigned char *buf)
*/
static int sd_zbc_check_zone_size(struct scsi_disk *sdkp)
{
u64 zone_blocks;
u64 zone_blocks = 0;
sector_t block = 0;
unsigned char *buf;
unsigned char *rec;
@ -421,10 +421,8 @@ static int sd_zbc_check_zone_size(struct scsi_disk *sdkp)
/* Do a report zone to get the same field */
ret = sd_zbc_report_zones(sdkp, buf, SD_ZBC_BUF_SIZE, 0);
if (ret) {
zone_blocks = 0;
goto out;
}
if (ret)
goto out_free;
same = buf[4] & 0x0f;
if (same > 0) {
@ -464,7 +462,7 @@ static int sd_zbc_check_zone_size(struct scsi_disk *sdkp)
ret = sd_zbc_report_zones(sdkp, buf,
SD_ZBC_BUF_SIZE, block);
if (ret)
return ret;
goto out_free;
}
} while (block < sdkp->capacity);
@ -472,35 +470,32 @@ static int sd_zbc_check_zone_size(struct scsi_disk *sdkp)
zone_blocks = sdkp->zone_blocks;
out:
kfree(buf);
if (!zone_blocks) {
if (sdkp->first_scan)
sd_printk(KERN_NOTICE, sdkp,
"Devices with non constant zone "
"size are not supported\n");
return -ENODEV;
}
if (!is_power_of_2(zone_blocks)) {
ret = -ENODEV;
} else if (!is_power_of_2(zone_blocks)) {
if (sdkp->first_scan)
sd_printk(KERN_NOTICE, sdkp,
"Devices with non power of 2 zone "
"size are not supported\n");
return -ENODEV;
}
if (logical_to_sectors(sdkp->device, zone_blocks) > UINT_MAX) {
ret = -ENODEV;
} else if (logical_to_sectors(sdkp->device, zone_blocks) > UINT_MAX) {
if (sdkp->first_scan)
sd_printk(KERN_NOTICE, sdkp,
"Zone size too large\n");
return -ENODEV;
}
ret = -ENODEV;
} else {
sdkp->zone_blocks = zone_blocks;
sdkp->zone_shift = ilog2(zone_blocks);
}
return 0;
out_free:
kfree(buf);
return ret;
}
/**