linux.git/drivers/scsi/device_handler, branch v3.3-rc2

[SCSI] scsi_dh_alua: Retry the check-condition in case Mode Parameters Changed

2012-01-10T23:01:24+00:00

This patch adds a check-condition in scsi_dh_alua handler for a retry.
Sometimes, I have seen attach failing due to this check-condition with
following error messages on NetApp E series storage.

Dec  7 15:31:01 nilgiris kernel: [102979.696673] scsi 3:0:2:9: alua: port group 00 rel port 01
Dec  7 15:31:01 nilgiris kernel: [102979.697082] scsi 3:0:2:9: alua: rtpg failed with 8000002
Dec  7 15:31:01 nilgiris kernel: [102979.697086] scsi 3:0:2:9: alua: rtpg sense code 06/2a/01
Dec  7 15:31:01 nilgiris kernel: [102979.697088] scsi 3:0:2:9: alua: not attached

Signed-off-by: Babu Moger 
Signed-off-by: James Bottomley

[SCSI] scsi_dh_rdac: Fix error path

2012-01-10T23:01:18+00:00

If create_singlethread_workqueue() failes, rdac_init should fail too.

Signed-off-by: Richard Weinberger 
Acked-by: "Moger, Babu" 
Signed-off-by: James Bottomley

[SCSI] scsi_dh: code cleanup and remove the references to scsi_dev_info

2011-12-15T06:55:00+00:00

All the handlers have now implemented the match function so We don't need to
use scsi_dev_info any more for matching purposes.

Signed-off-by: Babu Moger 
Acked-by: Hannes Reinecke 
Signed-off-by: James Bottomley

[SCSI] scsi_dh_rdac: Adding the match function for rdac device handler

2011-12-15T06:55:00+00:00

This patch introduces the match function for rdac device handler. Without
this, sometimes handler attach fails during the device_add. Included check for
TPGS bit before proceeding further. The match function was introduced by
commit 6c3633d08acf514e2e89aa95d2346ce9d64d719a

Signed-off-by: Babu Moger 
Acked-by: Hannes Reinecke 
Signed-off-by: James Bottomley

[SCSI] scsi_dh_hp_sw: Adding the match function for hp_sw device handler

2011-12-15T06:55:00+00:00

This patch introduces the match function for hp_sw device handler.  Included
the check for TPGS bit before proceeding further per Hannes comment.  The
match function was introduced by commit
6c3633d08acf514e2e89aa95d2346ce9d64d719a

Signed-off-by: Babu Moger 
Acked-by: Hannes Reinecke 
Signed-off-by: James Bottomley

[SCSI] scsi_dh_emc: Add a match function for emc device handler

2011-12-15T06:55:00+00:00

This patch introduces the match function for emc device handler.  Included
check for TPGS bit before proceeding further.  The match function was
introduced by commit 6c3633d08acf514e2e89aa95d2346ce9d64d719a

Signed-off-by: Babu Moger 
Acked-by: Hannes Reinecke 
Signed-off-by: James Bottomley

Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux

2011-11-07T03:44:47+00:00

* 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux: (230 commits)
  Revert "tracing: Include module.h in define_trace.h"
  irq: don't put module.h into irq.h for tracking irqgen modules.
  bluetooth: macroize two small inlines to avoid module.h
  ip_vs.h: fix implicit use of module_get/module_put from module.h
  nf_conntrack.h: fix up fallout from implicit moduleparam.h presence
  include: replace linux/module.h with "struct module" wherever possible
  include: convert various register fcns to macros to avoid include chaining
  crypto.h: remove unused crypto_tfm_alg_modname() inline
  uwb.h: fix implicit use of asm/page.h for PAGE_SIZE
  pm_runtime.h: explicitly requires notifier.h
  linux/dmaengine.h: fix implicit use of bitmap.h and asm/page.h
  miscdevice.h: fix up implicit use of lists and types
  stop_machine.h: fix implicit use of smp.h for smp_processor_id
  of: fix implicit use of errno.h in include/linux/of.h
  of_platform.h: delete needless include 
  acpi: remove module.h include from platform/aclinux.h
  miscdevice.h: delete unnecessary inclusion of module.h
  device_cgroup.h: delete needless include 
  net: sch_generic remove redundant use of 
  net: inet_timewait_sock doesnt need 
  ...

Fix up trivial conflicts (other header files, and  removal of the ab3550 mfd driver) in
 - drivers/media/dvb/frontends/dibx000_common.c
 - drivers/media/video/{mt9m111.c,ov6650.c}
 - drivers/mfd/ab3550-core.c
 - include/linux/dmaengine.h

[SCSI] scsi_dh_alua: Fix the time inteval for alua rtpg commands

2011-11-03T07:18:10+00:00

This patch corrects the retry interval for alua rtpg command. Purpose was to retry the commands in seconds.
But that was not happening. Reason is msleep takes argument in milliseconds.

Also added minor text after successful attach.

Signed-off-by: Babu Moger 
Acked-by: Hannes Reinecke 
Signed-off-by: James Bottomley

scsi: Fix up files implicitly depending on module.h inclusion

2011-10-31T23:31:24+00:00

The module.h header was implicitly present everywhere, so files
with no explicit include of the module infrastructure would build
anyway.  We are now removing the implicit include, and so we need
to call out the module.h file that we need explicitly.

Signed-off-by: Paul Gortmaker

[SCSI] scsi_dh: check queuedata pointer before proceeding further

2011-10-31T09:10:36+00:00

This patch validates sdev pointer in scsi_dh_activate before proceeding further.

Without this check we might see the panic as below. I have seen this
panic multiple times..

Call trace:

 #0 [ffff88007d647b50] machine_kexec at ffffffff81020902
 #1 [ffff88007d647ba0] crash_kexec at ffffffff810875b0
 #2 [ffff88007d647c70] oops_end at ffffffff8139c650
 #3 [ffff88007d647c90] __bad_area_nosemaphore at ffffffff8102dd15
 #4 [ffff88007d647d50] page_fault at ffffffff8139b8cf
    [exception RIP: scsi_dh_activate+0x82]
    RIP: ffffffffa0041922  RSP: ffff88007d647e00  RFLAGS: 00010046
    RAX: 0000000000000000  RBX: 0000000000000000  RCX: 00000000000093c5
    RDX: 00000000000093c5  RSI: ffffffffa02e6640  RDI: ffff88007cc88988
    RBP: 000000000000000f   R8: ffff88007d646000   R9: 0000000000000000
    R10: ffff880082293790  R11: 00000000ffffffff  R12: ffff88007cc88988
    R13: 0000000000000000  R14: 0000000000000286  R15: ffff880037b845e0
    ORIG_RAX: ffffffffffffffff  CS: 0010  SS: 0000
 #5 [ffff88007d647e38] run_workqueue at ffffffff81060268
 #6 [ffff88007d647e78] worker_thread at ffffffff81060386
 #7 [ffff88007d647ee8] kthread at ffffffff81064436
 #8 [ffff88007d647f48] kernel_thread at ffffffff81003fba

Signed-off-by: Babu Moger 
Cc: stable@kernel.org
Signed-off-by: James Bottomley