linux/include
Bart Van Assche 0db6ca8a5e scsi: Protect SCSI device state changes with a mutex
Serializing SCSI device state changes avoids that two state changes can
occur concurrently, e.g. the state changes in scsi_target_block() and
__scsi_remove_device(). This serialization is essential to make patch
"Make __scsi_remove_device go straight from BLOCKED to DEL" work
reliably.

Enable this mechanism for all scsi_target_*block() callers but not for
the scsi_internal_device_unblock() calls from the mpt3sas driver because
that driver can call scsi_internal_device_unblock() from atomic context.

Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Hannes Reinecke <hare@suse.com>
Cc: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-06-12 20:55:59 -04:00
..
acpi More ACPI updates for v4.12-rc1 2017-05-10 09:35:42 -07:00
asm-generic Kbuild UAPI header export updates for v4.12 2017-05-10 20:45:36 -07:00
clocksource
crypto Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security 2017-05-03 08:50:52 -07:00
drm drm/dp: start a DPCD based DP sink/branch device quirk database 2017-05-29 13:43:26 +03:00
dt-bindings Sort of on the quieter side this time, which is probably due more 2017-05-10 13:38:18 -07:00
keys
kvm KVM: arm/arm64: Fix bug when registering redist iodevs 2017-05-18 11:18:12 +02:00
linux scsi: storvsc: remove unnecessary channel inbound lock 2017-06-12 20:48:05 -04:00
math-emu
media [media] cec: rename MEDIA_CEC_NOTIFIER to CEC_NOTIFIER 2017-06-04 15:23:35 -03:00
memory
misc
net net: Update TCP congestion control documentation 2017-06-05 10:53:24 -04:00
pcmcia
ras
rdma RDMA/SA: Fix kernel panic in CMA request handler flow 2017-06-01 17:20:14 -04:00
rxrpc
scsi scsi: Protect SCSI device state changes with a mutex 2017-06-12 20:55:59 -04:00
soc powerpc updates for 4.12 part 2 2017-05-12 10:04:09 -07:00
sound ASoC: Updates for v4.12 2017-05-02 08:25:25 +02:00
target iscsi-target: Fix initial login PDU asynchronous socket close OOPs 2017-05-31 15:12:31 -07:00
trace Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux 2017-05-12 11:58:45 -07:00
uapi KEYS: DH: add __user annotations to keyctl_kdf_params 2017-06-09 13:29:49 +10:00
video uapi: export all headers under uapi directories 2017-05-11 00:21:54 +09:00
xen xen: Implement EFI reset_system callback 2017-05-02 12:06:50 +02:00