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b0962c53bd
linux/include/scsi
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Ewan D. Milne b0962c53bd scsi: core: avoid repetitive logging of device offline messages 
Large queues of I/O to offline devices that are eventually submitted when
devices are unblocked result in a many repeated "rejecting I/O to offline
device" messages.  These messages can fill up the dmesg buffer in crash
dumps so no useful prior messages remain.  In addition, if a serial console
is used, the flood of messages can cause a hard lockup in the console code.

Introduce a flag indicating the message has already been logged for the
device, and reset the flag when scsi_device_set_state() changes the device
state.

Link: https://lore.kernel.org/r/20200311143930.20674-1-emilne@redhat.com
Reviewed-by: Bart van Assche <bvanassche@acm.org>
Signed-off-by: Ewan D. Milne <emilne@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-03-11 23:09:27 -04:00
..
fc SCSI misc on 20190709 2019-07-11 15:14:01 -07:00
fc_encode.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 335 2019-06-05 17:37:06 +02:00
fc_frame.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 335 2019-06-05 17:37:06 +02:00
fcoe_sysfs.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 335 2019-06-05 17:37:06 +02:00
iscsi_if.h scsi: iscsi: Add support for asynchronous iSCSI session destruction 2020-03-11 23:07:57 -04:00
iscsi_proto.h scsi: target: iscsi: Wait for all commands to finish before freeing a session 2019-11-19 21:37:35 -05:00
iser.h
libfc.h scsi: libfc: Whitespace cleanup in libfc.h 2019-07-29 20:43:06 -04:00
libfcoe.h scsi: fcoe: Embed fc_rport_priv in fcoe_rport structure 2019-07-29 21:12:35 -04:00
libiscsi_tcp.h SCSI misc on 20190709 2019-07-11 15:14:01 -07:00
libiscsi.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
libsas.h SCSI misc on 20190709 2019-07-11 15:14:01 -07:00
sas_ata.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
sas.h SCSI misc on 20190709 2019-07-11 15:14:01 -07:00
scsi_bsg_iscsi.h scsi: Replace zero-length array with flexible-array member 2020-03-11 23:07:56 -04:00
scsi_cmnd.h scsi: core: Remove cmd_list functionality 2020-02-28 20:54:55 -05:00
scsi_common.h
scsi_dbg.h scsi: core: Reduce memory required for SCSI logging 2019-08-07 21:47:29 -04:00
scsi_device.h scsi: core: avoid repetitive logging of device offline messages 2020-03-11 23:09:27 -04:00
scsi_devinfo.h
scsi_dh.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
scsi_driver.h scsi: return blk_status_t from scsi_init_io and ->init_command 2018-11-09 19:17:14 -07:00
scsi_eh.h scsi: core: save/restore command resid for error handling 2019-10-03 21:43:04 -04:00
scsi_host.h scsi: Replace zero-length array with flexible-array member 2020-03-11 23:07:56 -04:00
scsi_ioctl.h scsi: Replace zero-length array with flexible-array member 2020-03-11 23:07:56 -04:00
scsi_proto.h
scsi_request.h
scsi_tcq.h scsi: kill off the legacy IO path 2018-11-07 13:42:32 -07:00
scsi_transport_fc.h SCSI misc on 20190709 2019-07-11 15:14:01 -07:00
scsi_transport_iscsi.h scsi: iscsi: Add support for asynchronous iSCSI session destruction 2020-03-11 23:07:57 -04:00
scsi_transport_sas.h
scsi_transport_spi.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
scsi_transport_srp.h
scsi_transport.h SCSI misc on 20190709 2019-07-11 15:14:01 -07:00
scsi.h scsi: libsas: Remove scsi_to_u32() 2019-01-29 00:46:22 -05:00
scsicam.h
sg.h scsi: docs: convert scsi-generic.txt to ReST 2020-03-11 23:08:02 -04:00
srp.h scsi: Replace zero-length array with flexible-array member 2020-03-11 23:07:56 -04:00
viosrp.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00