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3f7e62bba0
linux/drivers/scsi
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Stanley Chu 3f7e62bba0 scsi: core: Synchronize request queue PM status only on successful resume 
The commit 356fd2663c ("scsi: Set request queue runtime PM status back to
active on resume") fixed up the inconsistent RPM status between request
queue and device. However changing request queue RPM status shall be done
only on successful resume, otherwise status may be still inconsistent as
below,

Request queue: RPM_ACTIVE
Device: RPM_SUSPENDED

This ends up soft lockup because requests can be submitted to underlying
devices but those devices and their required resource are not resumed.

For example,

After above inconsistent status happens, IO request can be submitted to UFS
device driver but required resource (like clock) is not resumed yet thus
lead to warning as below call stack,

WARN_ON(hba->clk_gating.state != CLKS_ON);
ufshcd_queuecommand
scsi_dispatch_cmd
scsi_request_fn
__blk_run_queue
cfq_insert_request
__elv_add_request
blk_flush_plug_list
blk_finish_plug
jbd2_journal_commit_transaction
kjournald2

We may see all behind IO requests hang because of no response from storage
host or device and then soft lockup happens in system. In the end, system
may crash in many ways.

Fixes: 356fd2663c (scsi: Set request queue runtime PM status back to active on resume)
Cc: stable@vger.kernel.org
Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-01-08 21:57:26 -05:00
..
aacraid scsi: flip the default on use_clustering 2018-12-18 23:13:12 -05:00
aic7xxx scsi: flip the default on use_clustering 2018-12-18 23:13:12 -05:00
aic94xx scsi: flip the default on use_clustering 2018-12-18 23:13:12 -05:00
arcmsr scsi: flip the default on use_clustering 2018-12-18 23:13:12 -05:00
arm scsi: remove the use_clustering flag 2018-12-18 23:19:21 -05:00
be2iscsi scsi: introduce a max_segment_size host_template parameters 2018-12-18 23:13:12 -05:00
bfa scsi: bfa: clean up a couple of indentation issues 2018-12-19 21:54:58 -05:00
bnx2fc SCSI misc on 20181224 2018-12-28 14:48:06 -08:00
bnx2i SCSI misc on 20181224 2018-12-28 14:48:06 -08:00
csiostor SCSI misc on 20181224 2018-12-28 14:48:06 -08:00
cxgbi SCSI misc on 20181224 2018-12-28 14:48:06 -08:00
cxlflash SCSI misc on 20181224 2018-12-28 14:48:06 -08:00
device_handler scsi: return blk_status_t from device handler ->prep_fn 2018-11-09 19:17:14 -07:00
dpt
esas2r scsi: flip the default on use_clustering 2018-12-18 23:13:12 -05:00
fcoe scsi: fcoe: remove set but not used variable 'port' 2018-12-20 19:46:20 -05:00
fnic SCSI misc on 20181224 2018-12-28 14:48:06 -08:00
hisi_sas SCSI misc on 20181224 2018-12-28 14:48:06 -08:00
ibmvscsi scsi: flip the default on use_clustering 2018-12-18 23:13:12 -05:00
ibmvscsi_tgt scsi: target: replace fabric_ops.name with fabric_alias 2018-11-28 18:50:59 -05:00
isci scsi: isci: request: mark expected switch fall-through 2018-12-20 20:03:56 -05:00
libfc scsi: libfc: fc_rport: Mark expected switch fall-through 2018-11-28 21:47:30 -05:00
libsas SCSI misc on 20181224 2018-12-28 14:48:06 -08:00
lpfc SCSI misc on 20181224 2018-12-28 14:48:06 -08:00
megaraid scsi: megaraid_sas: correct an info message 2019-01-08 21:57:25 -05:00
mpt3sas scsi: mpt3sas: mpt3sas_scsih: Mark expected switch fall-through 2018-12-20 19:48:07 -05:00
mvsas scsi: flip the default on use_clustering 2018-12-18 23:13:12 -05:00
osd block: remove __blk_put_request() 2018-11-07 13:42:32 -07:00
pcmcia scsi: remove the use_clustering flag 2018-12-18 23:19:21 -05:00
pm8001 scsi: pm80xx: reduce indentation 2019-01-08 21:57:25 -05:00
qedf scsi: flip the default on use_clustering 2018-12-18 23:13:12 -05:00
qedi SCSI misc on 20181224 2018-12-28 14:48:06 -08:00
qla2xxx SCSI misc on 20181224 2018-12-28 14:48:06 -08:00
qla4xxx scsi: qla4xxx: check return code of qla4xxx_copy_from_fwddb_param 2019-01-08 21:57:25 -05:00
smartpqi SCSI misc on 20181224 2018-12-28 14:48:06 -08:00
snic scsi: flip the default on use_clustering 2018-12-18 23:13:12 -05:00
sym53c8xx_2 scsi: flip the default on use_clustering 2018-12-18 23:13:12 -05:00
ufs SCSI misc on 20181224 2018-12-28 14:48:06 -08:00
.gitignore
3w-9xxx.c scsi: flip the default on use_clustering 2018-12-18 23:13:12 -05:00
3w-9xxx.h
3w-sas.c scsi: flip the default on use_clustering 2018-12-18 23:13:12 -05:00
3w-sas.h
3w-xxxx.c scsi: 3w-xxxx: fix indentation issue, add missing tab 2018-12-19 21:54:07 -05:00
3w-xxxx.h scsi: 3w-xxx: fully convert to the generic DMA API 2018-10-17 21:58:51 -04:00
53c700_d.h_shipped
53c700.c scsi: flip the default on use_clustering 2018-12-18 23:13:12 -05:00
53c700.h scsi: 53c700: Fix spelling of 'NEGOTIATION' 2018-08-30 07:27:22 -04:00
53c700.scr
a100u2w.c scsi: flip the default on use_clustering 2018-12-18 23:13:12 -05:00
a100u2w.h
a2091.c scsi: remove the use_clustering flag 2018-12-18 23:19:21 -05:00
a2091.h
a3000.c scsi: flip the default on use_clustering 2018-12-18 23:13:12 -05:00
a3000.h
a4000t.c
advansys.c scsi: remove the use_clustering flag 2018-12-18 23:19:21 -05:00
aha152x.c scsi: remove the use_clustering flag 2018-12-18 23:19:21 -05:00
aha152x.h
aha1542.c scsi: flip the default on use_clustering 2018-12-18 23:13:12 -05:00
aha1542.h
aha1740.c scsi: flip the default on use_clustering 2018-12-18 23:13:12 -05:00
aha1740.h scsi: core: remove Scsi_Cmnd typedef 2018-06-19 22:02:25 -04:00
am53c974.c scsi: esp_scsi: move dma mapping into the core code 2018-10-15 23:00:38 -04:00
atari_scsi.c scsi: remove the use_clustering flag 2018-12-18 23:19:21 -05:00
atp870u.c scsi: flip the default on use_clustering 2018-12-18 23:13:12 -05:00
atp870u.h
BusLogic.c scsi: flip the default on use_clustering 2018-12-18 23:13:12 -05:00
BusLogic.h
bvme6000_scsi.c
ch.c scsi: core: check for equality of result byte values 2018-06-26 12:27:06 -04:00
constants.c
dc395x.c scsi: remove the use_clustering flag 2018-12-18 23:19:21 -05:00
dc395x.h
dmx3191d.c scsi: remove the use_clustering flag 2018-12-18 23:19:21 -05:00
dpt_i2o.c scsi: flip the default on use_clustering 2018-12-18 23:13:12 -05:00
dpti.h scsi: dpt_i2o: stop using scsi_unregister 2018-03-15 00:25:37 -04:00
esp_scsi.c scsi: flip the default on use_clustering 2018-12-18 23:13:12 -05:00
esp_scsi.h scsi: esp_scsi: De-duplicate PIO routines 2018-10-17 21:38:20 -04:00
FlashPoint.c scsi: FlashPoint: Remove unnecessary parentheses 2018-09-25 20:45:53 -04:00
g_NCR5380.c scsi: remove the use_clustering flag 2018-12-18 23:19:21 -05:00
gdth_ioctl.h
gdth_proc.c scsi: core: remove Scsi_Cmnd typedef 2018-06-19 22:02:25 -04:00
gdth_proc.h
gdth.c scsi: flip the default on use_clustering 2018-12-18 23:13:12 -05:00
gdth.h scsi: core: remove Scsi_Cmnd typedef 2018-06-19 22:02:25 -04:00
gvp11.c scsi: remove the use_clustering flag 2018-12-18 23:19:21 -05:00
gvp11.h
hosts.c SCSI misc on 20181224 2018-12-28 14:48:06 -08:00
hpsa_cmd.h
hpsa.c scsi: flip the default on use_clustering 2018-12-18 23:13:12 -05:00
hpsa.h scsi: hpsa: correct enclosure sas address 2018-07-10 22:25:03 -04:00
hptiop.c scsi: flip the default on use_clustering 2018-12-18 23:13:12 -05:00
hptiop.h
imm.c scsi: flip the default on use_clustering 2018-12-18 23:13:12 -05:00
imm.h
initio.c scsi: flip the default on use_clustering 2018-12-18 23:13:12 -05:00
initio.h
ipr.c scsi: flip the default on use_clustering 2018-12-18 23:13:12 -05:00
ipr.h scsi: ipr: System hung while dlpar adding primary ipr adapter back 2018-09-21 12:35:39 -04:00
ips.c scsi: remove the use_clustering flag 2018-12-18 23:19:21 -05:00
ips.h scsi: ips: properly handle 64-bit DMA 2018-11-06 21:31:28 -05:00
iscsi_boot_sysfs.c
iscsi_tcp.c scsi: iscsi: Capture iscsi debug messages using tracepoints 2018-12-20 20:03:55 -05:00
iscsi_tcp.h
jazz_esp.c scsi: esp_scsi: move dma mapping into the core code 2018-10-15 23:00:38 -04:00
Kconfig Linux 4.20-rc3 2018-11-18 15:46:03 -07:00
lasi700.c
libiscsi_tcp.c scsi: iscsi: Capture iscsi debug messages using tracepoints 2018-12-20 20:03:55 -05:00
libiscsi.c SCSI misc on 20181224 2018-12-28 14:48:06 -08:00
mac53c94.c scsi: mac53c94: remove DISABLE_CLUSTERING 2018-12-18 23:13:12 -05:00
mac53c94.h
mac_esp.c scsi: remove the use_clustering flag 2018-12-18 23:19:21 -05:00
mac_scsi.c scsi: remove the use_clustering flag 2018-12-18 23:19:21 -05:00
Makefile scsi: myrs: Add Mylex RAID controller (SCSI interface) 2018-10-17 21:07:54 -04:00
megaraid.c scsi: flip the default on use_clustering 2018-12-18 23:13:12 -05:00
megaraid.h scsi: core: remove Scsi_Cmnd typedef 2018-06-19 22:02:25 -04:00
mesh.c scsi: mesh: remove DISABLE_CLUSTERING 2018-12-18 23:13:12 -05:00
mesh.h
mvme16x_scsi.c
mvme147.c scsi: flip the default on use_clustering 2018-12-18 23:13:12 -05:00
mvme147.h
mvumi.c scsi: remove the use_clustering flag 2018-12-18 23:19:21 -05:00
mvumi.h
myrb.c SCSI misc on 20181224 2018-12-28 14:48:06 -08:00
myrb.h scsi: myrb: Add Mylex RAID controller (block interface) 2018-10-17 21:06:49 -04:00
myrs.c scsi: myrs: remove the dma_boundary_limit 2018-12-19 21:43:30 -05:00
myrs.h scsi: myrs: Add Mylex RAID controller (SCSI interface) 2018-10-17 21:07:54 -04:00
ncr53c8xx.c scsi: flip the default on use_clustering 2018-12-18 23:13:12 -05:00
ncr53c8xx.h
NCR5380.c scsi: NCR5380: Return false instead of NULL 2018-11-05 22:47:38 -05:00
NCR5380.h scsi: NCR5380: Have NCR5380_select() return a bool 2018-09-28 02:17:51 -04:00
nsp32_debug.c scsi: core: remove Scsi_Cmnd typedef 2018-06-19 22:02:25 -04:00
nsp32_io.h
nsp32.c scsi: remove the use_clustering flag 2018-12-18 23:19:21 -05:00
nsp32.h
osst_detect.h
osst_options.h
osst.c block: remove __blk_put_request() 2018-11-07 13:42:32 -07:00
osst.h
pmcraid.c Remove 'type' argument from access_ok() function 2019-01-03 18:57:57 -08:00
pmcraid.h scsi: pmcraid: Use sgl_alloc_order() and sgl_free_order() 2018-02-13 21:49:15 -05:00
ppa.c scsi: flip the default on use_clustering 2018-12-18 23:13:12 -05:00
ppa.h
ps3rom.c scsi: flip the default on use_clustering 2018-12-18 23:13:12 -05:00
qla1280.c scsi: flip the default on use_clustering 2018-12-18 23:13:12 -05:00
qla1280.h
qlogicfas408.c
qlogicfas408.h
qlogicfas.c scsi: remove the use_clustering flag 2018-12-18 23:19:21 -05:00
qlogicpti.c scsi: flip the default on use_clustering 2018-12-18 23:13:12 -05:00
qlogicpti.h
raid_class.c scsi: raid_attrs: fix unused variable warning 2018-08-30 07:21:04 -04:00
script_asm.pl
scsi_common.c
scsi_debug.c SCSI misc on 20181224 2018-12-28 14:48:06 -08:00
scsi_debugfs.c scsi: devinfo: use const_ilog2 for array indices 2018-04-20 19:14:28 -04:00
scsi_debugfs.h
scsi_devinfo.c scsi: devinfo: BLIST_RETRY_ASC_C1 for Fujitsu ETERNUS 2018-04-20 19:14:36 -04:00
scsi_dh.c scsi: scsi_dh: replace too broad "TP9" string with the exact models 2018-04-18 19:34:08 -04:00
scsi_error.c scsi: Do not rely on blk-mq for double completions 2018-11-26 10:34:26 -07:00
scsi_ioctl.c Remove 'type' argument from access_ok() function 2019-01-03 18:57:57 -08:00
scsi_lib_dma.c
scsi_lib.c SCSI misc on 20181224 2018-12-28 14:48:06 -08:00
scsi_logging.c
scsi_logging.h
scsi_netlink.c
scsi_pm.c scsi: core: Synchronize request queue PM status only on successful resume 2019-01-08 21:57:26 -05:00
scsi_priv.h scsi: kill off the legacy IO path 2018-11-07 13:42:32 -07:00
scsi_proc.c
scsi_sas_internal.h
scsi_scan.c scsi: kill off the legacy IO path 2018-11-07 13:42:32 -07:00
scsi_sysctl.c
scsi_sysfs.c scsi: kill off the legacy IO path 2018-11-07 13:42:32 -07:00
scsi_trace.c
scsi_transport_api.h
scsi_transport_fc.c bsg: convert to use blk-mq 2018-11-07 13:42:32 -07:00
scsi_transport_iscsi.c SCSI misc on 20181224 2018-12-28 14:48:06 -08:00
scsi_transport_sas.c bsg: provide bsg_remove_queue() helper 2018-11-07 13:42:32 -07:00
scsi_transport_spi.c scsi: core: check for equality of result byte values 2018-06-26 12:27:06 -04:00
scsi_transport_srp.c for-4.18/block-20180603 2018-06-04 07:58:06 -07:00
scsi.c scsi: kill off the legacy IO path 2018-11-07 13:42:32 -07:00
scsi.h scsi: core: remove Scsi_Cmnd typedef 2018-06-19 22:02:25 -04:00
scsicam.c
sd_dif.c block: move dif_prepare/dif_complete functions to block layer 2018-07-30 08:27:02 -06:00
sd_zbc.c scsi: return blk_status_t from scsi_init_io and ->init_command 2018-11-09 19:17:14 -07:00
sd.c scsi: sd: Fix cache_type_store() 2019-01-08 21:57:25 -05:00
sd.h scsi: return blk_status_t from scsi_init_io and ->init_command 2018-11-09 19:17:14 -07:00
sense_codes.h
ses.c treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
sg.c Remove 'type' argument from access_ok() function 2019-01-03 18:57:57 -08:00
sgiwd93.c scsi: remove the use_clustering flag 2018-12-18 23:19:21 -05:00
sim710.c
sni_53c710.c
sr_ioctl.c block: Switch struct packet_command to use struct scsi_sense_hdr 2018-08-02 15:22:13 -06:00
sr_vendor.c
sr.c scsi: return blk_status_t from scsi_init_io and ->init_command 2018-11-09 19:17:14 -07:00
sr.h
st_options.h
st.c block: remove __blk_put_request() 2018-11-07 13:42:32 -07:00
st.h
stex.c scsi: remove the use_clustering flag 2018-12-18 23:19:21 -05:00
storvsc_drv.c SCSI misc on 20181224 2018-12-28 14:48:06 -08:00
sun3_scsi_vme.c
sun3_scsi.c scsi: remove the use_clustering flag 2018-12-18 23:19:21 -05:00
sun3x_esp.c scsi: esp_scsi: move dma mapping into the core code 2018-10-15 23:00:38 -04:00
sun_esp.c scsi: sun_esp: Use of_node_name_eq for node name comparisons 2018-12-07 21:56:06 -05:00
virtio_scsi.c SCSI misc on 20181224 2018-12-28 14:48:06 -08:00
vmw_pvscsi.c SCSI misc on 20181224 2018-12-28 14:48:06 -08:00
vmw_pvscsi.h
wd33c93.c
wd33c93.h
wd719x.c scsi: flip the default on use_clustering 2018-12-18 23:13:12 -05:00
wd719x.h scsi: wd719x: use per-command private data 2018-11-15 14:27:08 -05:00
xen-scsifront.c scsi: xen-scsifront: remove DISABLE_CLUSTERING 2018-12-18 23:13:12 -05:00
zalon.c
zorro7xx.c
zorro_esp.c scsi: esp_scsi: De-duplicate PIO routines 2018-10-17 21:38:20 -04:00