Commit Graph

75585 Commits

Author SHA1 Message Date
Rob Landley eb44820c28 [SCSI] Add Documentation and integrate into docbook build
Add Documentation/DocBook/scsi_midlayer.tmpl, add to Makefile, and update
lots of kerneldoc comments in drivers/scsi/*.

Updated with comments from Stefan Richter, Stephen M. Cameron,
 James Bottomley and Randy Dunlap.

Signed-off-by: Rob Landley <rob@landley.net>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:40 -06:00
Christof Schmitt 3f48985823 [SCSI] zfcp: Reduce flood on hba trace
Remove tracing for request with a "qualifier" field set in the
response.  The protocol status qualifier now contains measurement
data for "good" commands, so this check would trace every response
by default.

The fix is to simply remove the "qual" tracing: The responses with an
interesting status are also traced as "ferr" or "perr" and all
responses can be traced as "norm" with a higher trace level.

Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:40 -06:00
Christof Schmitt 1de1b43b5f [SCSI] zfcp: Fix deadlock when adding invalid LUN
When adding an invalid LUN, there is a deadlock between the add
via scsi_scan_target and the slave_destroy handler: The handler
waits for the scan to complete, but for an invalid unit,
scsi_scan_target directly calls the slave_destroy handler.

Fix the deadlock by removing the wait in the slave_destroy
handler, it was not necessary anyway.

Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:40 -06:00
Christof Schmitt e39c8877a4 [SCSI] zfcp: Remove SCSI devices when removing complete adapter
The common I/O layer can call remove a handler to inform zfcp
that a device disappeared. The handler zfcp_ccw_remove then
removes all unit, port and the adapter data structures. Removing
the units requires that the SCSI devices are removed first.

Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:40 -06:00
Christof Schmitt 18edcdbdb2 [SCSI] zfcp: Specify waiting times in ERP in seconds
It is not necessary to use jiffies or milliseconds to specify
waiting times that last a couple of seconds.

Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:40 -06:00
Christof Schmitt 345bfea5e4 [SCSI] zfcp: Use also port and adapter to identify unit in messages.
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:39 -06:00
Christof Schmitt a11b4743e5 [SCSI] zfcp: Remove unnecessary eh_bus_reset_handler callback
The callback function used by zfcp always returns success,
which is an indication for the SCSI midlayer to stop error
handling. Remove the bus_reset callback, since the same
function will be called via the host_reset callback.

Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:39 -06:00
Salyzyn, Mark f858317d89 [SCSI] aacraid: forced reset override
Some of our vendors have requested that our adapters ignore the hardware
reset attempts during recovery and have enforced this with changes in
Adapter Firmware. Some of our customers have requested the option to be
able to reset the adapter under adverse adapter failure, we even had a
few defects reported here considering it a regression that the Adapter
could not be reset. This patch addresses this dichotomy. The user can
force the adapter to be reset if it supports the IOP_RESET_ALWAYS
command, in cases where the adapter has been programmed to ignore the
reset, by setting the aacraid.check_reset parameter to a value of -1.

The driver will not reset an Adapter that does not support the reset
command(s).

This patch also fixes and cleans up some of the logic associated with
resetting the adapter.

Signed-off-by: Mark Salyzyn <aacraid@adaptec.com>
Signed-off-by: James <James.Bottomley@HansenPartnership.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:39 -06:00
Boaz Harrosh 9e0fe44ddb [SCSI] NCR5380 family: convert to accessors & !use_sg cleanup
- This patch depends on:
      NCR5380: Use scsi_eh API for REQUEST_SENSE invocation
  - convert to accessors and !use_sg cleanup
  - FIXME: Not sg-chain ready look for ++cmd->SCp.buffer

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: James <James.Bottomley@HansenPartnership.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:39 -06:00
Boaz Harrosh 9a3dd65baf [SCSI] wd7000: proper fix for boards without sg support
- code used to set sg_tablesize to zero for board revision
    less than 6. This is no longer supported, therefore I
    use sg_tablesize=1 and open code the sg handling for that case.
  - Get rid of use of SG_NONE which will be removed soon.

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: James <James.Bottomley@HansenPartnership.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:39 -06:00
Boaz Harrosh fe7ed98fd4 [SCSI] atp870u: convert to accessors and !use_sg cleanup
- convert to accessors and !use_sg cleanup
 - Probably not ready for sg-chaining

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Acked-by: Christoph Hellwig <hch@infradead.org>
Cc: jameshsu <jameshsu@acard.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:38 -06:00
Boaz Harrosh c73961e563 [SCSI] scsi_debug: convert to use the data buffer accessors
- remove the unnecessary map_single path.
  - convert to use the new accessors for the sg lists and the
    parameters.

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Acked-by: Douglas Gilbert <dougg@torque.net>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:38 -06:00
Boaz Harrosh 48c23d3e37 [SCSI] isd200: use one-element sg list in issuing commands
- This patch should be commited before:
    usb: transport - convert to accessors and !use_sg code path removal

  - isd200_action() was still using direct liniar pointers in issuing
    commands to the USB transport level. This is no longer supported,
    use one-element scatterlist instead.
  - Adjustment of command's length in the case of scsi-to-ata translation
    is now restored before return to queuecommand, since other wise it can
    leak BIOs.
  - isd200_action() return Error on unknown requests. Used to print an error
    but still try to send garbage cdb.
  - convert few places to scsi data accessors.
  - Todo: This file will need to be changed when scsi_cmnd changes to
    scsi_data_buffer or any other solution.

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Acked-by: Matthew Dharm <mdharm-scsi@one-eyed-alien.net>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:38 -06:00
Boaz Harrosh 6d416e6173 [SCSI] usb: transport - convert to accessors and !use_sg code path removal
- This patch depends on:
    usb: transport.c use scsi_eh API in REQUEST_SENSE execution

  - Use scsi data accessors and remove of !use_sg code path.
  - New usb_stor_bulk_srb() for use by drivers

[jejb: updated with corrective fix.

had a bug in residual handling in the new usb_stor_bulk_srb()
function.  Found by Gabriel C. in -mm tree.

Tested-by: Gabriel C <nix.or.die@googlemail.com>
]

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Acked-by: Matthew Dharm <mdharm-scsi@one-eyed-alien.net>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:38 -06:00
Boaz Harrosh 4776e99ebb [SCSI] usb: shuttle_usbat - convert to accessors and !use_sg code path removal
- functions that received char* but where passed scatterlist* mostly
   were changed to receive void*
 - Use scsi data accessors and remove of !use_sg code path

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Acked-by: Matthew Dharm <mdharm-scsi@one-eyed-alien.net>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:37 -06:00
Boaz Harrosh 41c2497b18 [SCSI] usb: freecom & sddr09 - convert to accessors and !use_sg cleanup
- Use scsi data accessors and remove of !use_sg code path
 - This patch is dependent on cleanup patch to usb transport.c/h

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Acked-by: Matthew Dharm <mdharm-scsi@one-eyed-alien.net>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:36 -06:00
Boaz Harrosh dd829d2302 [SCSI] usb: protocol - convert to accessors and !use_sg code path removal
- Use scsi data accessors and remove of !use_sg code path

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Acked-by: Matthew Dharm <mdharm-scsi@one-eyed-alien.net>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:36 -06:00
Boaz Harrosh caa1e8c321 [SCSI] seagate: Remove driver
- Apparently no one wonts this driver, and no one
    is willing to fix it for future changes to SCSI.
    So remove it, and if someone wants it in the future
    He can revive it with the needed fixes.

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:36 -06:00
Boaz Harrosh 864a4675b2 [SCSI] psi240i: remove driver
The psi240i driver is still written for cmnd->request_buffer
as a char pointer to actual data. There was never any attempt
to use the scatterlist option.

  - remove all source files (3) from drivers/scsi
  - Remove from Makefile and Kconfig

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:36 -06:00
Boaz Harrosh 53d2a88503 [SCSI] in2000: convert to accessors and !use_sg cleanup
- convert to accessors and !use_sg cleanup

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:36 -06:00
Boaz Harrosh dfb104ff5d [SCSI] qlogicpti: convert to accessors and !use_sg cleanup
- convert to accessors and !use_sg cleanup

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:36 -06:00
Boaz Harrosh ee0ae92793 [SCSI] wd33c93: convert to accessors and !use_sg cleanup
- convert to accessors and !use_sg cleanup

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:35 -06:00
Boaz Harrosh 8e31f1f4d9 [SCSI] fd_mcs: convert to accessors and !use_sg cleanup
- convert to accessors and !use_sg cleanup
 - Not ready for sg-chaining

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:35 -06:00
Boaz Harrosh fc3fdfcc8b [SCSI] aha1542: convert to accessors and !use_sg cleanup
- convert to accessors and !use_sg cleanup

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:35 -06:00
Boaz Harrosh cc0455fac0 [SCSI] a3000: convert to accessors and !use_sg cleanup
- convert to accessors and !use_sg cleanup

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:35 -06:00
Boaz Harrosh f2c1afa5eb [SCSI] a2091: convert to accessors and !use_sg cleanup
- convert to accessors and !use_sg cleanup

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:35 -06:00
Boaz Harrosh 7410d849a4 [SCSI] eata_pio: convert to accessors and !use_sg cleanup
- convert to accessors and !use_sg cleanup

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:34 -06:00
Boaz Harrosh 040cd23242 [SCSI] nsp_cs: convert to data accessors and !use_sg cleanup
- use scsi data accessors
  - cleanup !use_sg code paths
  - TODO: use next_sg() for Jens's sglist branch. Look for 2
    places with "SCp.buffer++"

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:34 -06:00
Boaz Harrosh 73d2cb165a [SCSI] aha152x: Use scsi_eh API for REQUEST_SENSE invocation
- Use new scsi_eh_prep/restor_cmnd() for synchronous
    REQUEST_SENSE invocation.

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:34 -06:00
Mike Christie 75a9a4e147 [SCSI] add DID_REQUEUE string to scsi_show_result host table
I was working on patches which add new transport error values, when I
noticed that DID_REQUEUE was not in the hostbyte_table. I do not think
there is any way to hit the code path where scsi_show_result is called
and where you return DID_REQUEUE, because DID_REQUEUE causes scsi-ml to
always requeue the command. However, for completeness and because I want
to one day send a patch that tries to add new host bytes values, I am
sending this patch.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:34 -06:00
James Smart 062af9c300 [SCSI] lpfc 8.2.3 : Change version number to 8.2.3
Change version number to 8.2.3

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:34 -06:00
James Smart 7af670510d [SCSI] lpfc 8.2.3 : Temperature handling fix
Temperature handling fix - return proper error code indicator for applications

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:33 -06:00
James Smart 76bb24efdc [SCSI] lpfc 8.2.3 : Internal loopback fixes
Internal loopback fixes:
- Use HBQs rather than Q_RING_BUFF
- Correct HBQs continuation entries
- Update CT handler to SLI3 iocbs

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:33 -06:00
James Smart a8adb83208 [SCSI] lpfc 8.2.3 : Miscellaneous Small Fixes - part 2
Miscellaneous Small Fixes - part 2

- Fix ndlp left in PLOGI state after link up
- Fix cannot rcv unsol ELS frames after running HBA resets for a few minutes
- Fix HBQ buffer_count implemention
- Fix RPI leak
- Fix crash while deleting vports while HBA is reset
- Revert the FCP Fbits offset back to 7
- Fix panic when deleting vports
- Remove unused code in switch statement outside of a case
- Reject PLOGI from invalid PName or NName of 0
- Ignore PLOGI responses from WWPName or WWNName of 0
- Fix debugfs hbqinfo display for ppc
- Added 8G to list of supported speeds for sysfs parameter
- Defer ndlp cleanup to dev-loss timeout handler
- Added support for WRITE_VPARMS mailbox command by applications

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:33 -06:00
James Smart 87af33fe5f [SCSI] lpfc 8.2.3 : FC Discovery Fixes
FC Discovery Fixes:
- Fix up lpfc_drop_node() vs lpfc_nlp_not_used() usage
- Clear ADISC flag when unregistering RPI and REMOVE ndlps if in recovery.
- Fix usage of UNUSED list and ndlps
- Fix PLOGI race conditions
- Reset link if NameServer PLOGI errors occur
- Synchronize GID_FT queries with PLOGI receptions

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:33 -06:00
James Smart 98c9ea5c02 [SCSI] lpfc 8.2.3 : Miscellaneous Small Fixes - part 1
Miscellaneous Small Fixes - part 1
- Fix typo kmzlloc -> kzalloc
- Fix discovery ndlp use after free panic
- Fix link event causing flood of 0108 messages
- Relieve some mbox congestion on link up with 100 vports
- Fix broken vport parameters
- Prevent lock recursion in logo_reglogin_issue
- Split uses of error variable in lpfc_pci_probe_one into retval and error
- Remove completion code related to dev_loss_tmo
- Remove unused LPFC_MAX_HBQ #define
- Don't compare pointers to 0 for sparse
- Make 2 functions static for sparse
- Fix default rpi cleanup code causing rogue ndlps to remain on the NPR list
- Remove annoying ELS messages when driver is unloaded
- Fix Cannot issue Register Fabric login problems on link up
- Remove LPFC_EVT_DEV_LOSS_DELAY
- Fix FC port swap test leads to device going offline
- Fix vport CT flags to only be set when accepted
- Add code to handle signals during vport_create
- Fix too many retries in FC-AL mode
- Pull lpfc_port_link_failure out of lpfc_linkdown_port

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:33 -06:00
James Smart 0b727fea7a [SCSI] lpfc 8.2.3 : Remove flawed MBX_STOP_IOCB logic
Remove flawed MBX_STOP_IOCB logic

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:32 -06:00
James Smart 7ee5d43e2e [SCSI] lpfc 8.2.3 : NPIV bug fixes
NPIV bug fixes:
- Remove vport params on physical hba when npiv is disabled
- Implement new DA_ID CT command to remove vport information from
  the switch after delete. Some switches didn't clean this up unless
  the physical link dropped.

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:31 -06:00
James Smart 57127f1572 [SCSI] lpfc 8.2.3 : Added support for ASICs that report temperature
Added support for ASICs that report temperature. Temperature notices are
 reported as events and logged. Temperature can be read via sysfs.

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:31 -06:00
Brian King d1a357fcc8 [SCSI] ibmvscsi: Set default command timeout
Set the default command timeout for ibmvscsi disks to 60 seconds
to ensure we don't prematurely timeout commands. This fixes a problem
seen where the default 30 seconds was not long enough due to
congestion on the server.

Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:31 -06:00
Adrian Bunk f37a7238d3 [SCSI] 53c7xx: fix removal fallout
This patch does some additional cleanups after the 53c7xx removal.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:30 -06:00
FUJITA Tomonori f10ab66fa5 [SCSI] tgt: convert to use the data buffer accessors
- convert to use the new accessors for the sg lists and the
parameters.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:30 -06:00
Gilbert Wu 1237c98db2 [SCSI] aic94xx: update BIOS image from user space.
1. Create a file "update_bios" in sysfs to allow user to update bios
    from user space.

 2. The BIOS image file can be downloaded from web site

"http://www.adaptec.com/en-US/downloads/bios_fw/bios_fw_ver?productId=SAS-48300&dn=Adaptec+Serial+Attached+SCSI+48300"
    and copy the BIOS image into /lib/firmware folder.

 3. The aic994xx will accept "update bios_file" and "verify bios_file"
    commands to perform update and verify BIOS image .

    For example:

     Type "echo "update asc483c01.ufi" > /sys/devices/.../update_bios"
          to update BIOS image from /lib/firmware/as483c01.ufi file into
          HBA's flash memory.

     Type "echo "verify asc483c01.ufi" > /sys/devices/.../update_bios"
          to verify BIOS image between /lib/firmware/asc48c01.ufi file
and
          HBA's flash memory.

 4. Type "cat  /sys/devices/.../update_bios" to view the status or
result
    of updating BIOS.

Signed-off-by: Gilbert Wu <gilbert_wu@adaptec.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:30 -06:00
Kay Sievers 285e9670d9 [SCSI] sr,sd: send media state change modification events
This will send for a card reader slot (remove/add media):
  UEVENT[1187091572.155884] change   /devices/pci0000:00/0000:00:1d.7/usb5/5-2/5-2:1.0/host7/target7:0:0/7:0:0:0 (scsi)
  UEVENT[1187091572.162314] remove   /block/sdb/sdb1 (block)
  UEVENT[1187091572.172464] add      /block/sdb/sdb1 (block)
  UEVENT[1187091572.175408] change   /devices/pci0000:00/0000:00:1d.7/usb5/5-2/5-2:1.0/host7/target7:0:0/7:0:0:0 (scsi)

and for a DVD drive (add/eject media):
  UEVENT[1187091590.189159] change   /devices/pci0000:00/0000:00:1f.1/host4/target4:0:0/4:0:0:0 (scsi)
  UEVENT[1187091590.957124] add      /module/isofs (module)
  UEVENT[1187091604.468207] change   /devices/pci0000:00/0000:00:1f.1/host4/target4:0:0/4:0:0:0 (scsi)

Userspace gets events, even for unpartitioned media. This unifies
the event handling for asynchronoous events (AN) and events caused by
perodical polling the device from userspace.

Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>

[jejb: modified for new event API]

Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:30 -06:00
Linus Torvalds d0c4c9d4a2 Merge git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/v4l-dvb
* git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/v4l-dvb:
  V4L/DVB (7001): av7110: fix section mismatch
  V4L/DVB (6999): ivtv: stick to udelay=10 after all
2008-01-11 13:46:46 -08:00
Linus Torvalds 460c54b779 Merge branch 'for-linus' of git://oss.sgi.com:8090/xfs/xfs-2.6
* 'for-linus' of git://oss.sgi.com:8090/xfs/xfs-2.6:
  [XFS] fix unaligned access in readdir
2008-01-11 11:49:31 -08:00
Linus Torvalds 5d0381e21e Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6.24
* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6.24:
  sh: Force __access_ok() to obey address space limit.
  sh: Fix argument page dcache flushing regression.
2008-01-11 11:48:59 -08:00
Linus Torvalds 22fb53c943 Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus:
  [MIPS] Replace 40c7869b69 kludge
  [MIPS] Lasat: Fix built in separate object directory.
  [MIPS] Malta: Fix software reset on big endian
  [MIPS] pnx8xxx: move to clocksource
  [MIPS] Wrong CONFIG option prevents setup of DMA zone.
2008-01-11 11:48:00 -08:00
Jeremy Kerr 8dab637612 ps3fb: fix deadlock on kexec()
Since the introduction of the acquire_console_sem calls in
0333d83509, kexecing can cause the
kernel to deadlock:

 ps3fb_shutdown()
  -> unregister_framebuffer()
  -> fb_notifier_call_chain(FB_EVENT_FB_UNBIND)
  -> fbcon_fb_unbind()
  -> unbind_con_driver()
  -> bind_con_driver()
	[ acquires console_sem ]
  -> fbcon_deinit()
  -> fbops->fb_release(newinfo, 0)
  -> ps3fb_release()
  -> ps3fb_sync()
	[ acquires console_sem ]

This change avoids the deadlock by moving the acquire_console_sem()
out of ps3fb_sync(), and puts it into the two other callsites, leaving
ps3fb_release() to call ps3fb_sync() without the console semaphore.

[Geert]
  - Corrected call sequence above
  - ps3fb_release() may be called with and without console_sem held. This is an
    inconsistency that should be fixed at the fb level, but for now, try to
    acquire console_sem in ps3fb_release().

    I think it's safer to let ps3fb_release() try to acquire console_sem and
    not refresh the screen if it fails, than to call ps3fb_sync() without
    holding console_sem, as ps3fb_par may be modified at the same time, causing
    crashes or lockups.

    Besides, ps3fb_release() only calls ps3fb_sync() to refresh the screen
    when display flipping is disabled, which is an uncommon case (except during
    shutdown/kexec).

Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-01-11 11:47:43 -08:00
Jeremy Kerr ba21611c9c ps3fb: prevent use after free of fb_info
In ps3fb_shutdown, freeing the framebuffer will cause fb_info (in
dev->core.driver_data) to be free()ed, which we potentially access
from the ps3fbd kthread.

This change frees the framebuffer after stopping the ps3fbd kthread.

Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-01-11 11:47:42 -08:00