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146b16c807
linux/drivers/scsi/mpt3sas
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Sreekanth Reddy 146b16c807 mpt3sas: Refcount fw_events and fix unsafe list usage 
The fw_event_work struct is concurrently referenced at shutdown. Add a
refcount to protect it and refactor the code to use it.

Additionally, refactor _scsih_fw_event_cleanup_queue() such that it no
longer iterates over the list without holding the lock since
_firmware_event_work() concurrently deletes items from the list.

This patch is ported from commit 008549f6e8 ("mpt2sas: Refcount
fw_events and fix unsafe list usage"). These changes are also required
for mpt3sas.

Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@avagotech.com>
Acked-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2015-11-11 19:01:11 -05:00
..
mpi mpt3sas: MPI 2.5 Rev K (2.5.6) specifications 2015-08-27 11:08:28 -07:00
Kconfig mpt2sas, mpt3sas: Remove SCSI_MPTXSAS_LOGGING entry from Kconfig 2015-11-11 18:31:14 -05:00
Makefile mpt3sas: Move Gen3 HBA's device registration to a separate file 2015-11-11 18:20:02 -05:00
mpt3sas_base.c mpt3sas: Ported WarpDrive product SSS6200 support 2015-11-11 18:56:10 -05:00
mpt3sas_base.h mpt3sas: Refcount sas_device objects and fix unsafe list usage 2015-11-11 18:57:38 -05:00
mpt3sas_config.c mpt3sas: sysfs attribute to report Backup Rail Monitor Status 2015-11-11 18:56:21 -05:00
mpt3sas_ctl.c mpt3sas: sysfs attribute to report Backup Rail Monitor Status 2015-11-11 18:56:21 -05:00
mpt3sas_ctl.h mpt3sas: Ported WarpDrive product SSS6200 support 2015-11-11 18:56:10 -05:00
mpt3sas_debug.h mpt2sas, mpt3sas: Remove SCSI_MPTXSAS_LOGGING entry from Kconfig 2015-11-11 18:31:14 -05:00
mpt3sas_module.c mpt3sas: Define 'hba_mpi_version_belonged' IOC variable 2015-11-11 18:29:34 -05:00
mpt3sas_scsih.c mpt3sas: Refcount fw_events and fix unsafe list usage 2015-11-11 19:01:11 -05:00
mpt3sas_transport.c mpt3sas: Refcount sas_device objects and fix unsafe list usage 2015-11-11 18:57:38 -05:00
mpt3sas_trigger_diag.c mpt2sas, mpt3sas: Update attribution language to Avago 2015-01-13 16:27:27 +01:00
mpt3sas_trigger_diag.h mpt2sas, mpt3sas: Update attribution language to Avago 2015-01-13 16:27:27 +01:00