Make sure ata_dev_revalidate() complains on failures and kill
revalidation failure message printed from ata_dev_set_mode().
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
ata_bus_probe() now marks failed devices properly and leaves
meaningful transfer mode masks. This patch makes ata_dev_xfermask()
consider disable devices when determining PIO mode to avoid violating
device selection timing.
While at it, move port-wide resttriction out of device iteration loop
and try to make the function look a bit prettier.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Improve ata_bus_probe() such that configuration failures are handled
better. Each device is given ATA_PROBE_MAX_TRIES chances, but any
non-transient error (revalidation failure with -ENODEV, configuration
failure with -EINVAL...) disables the device directly. Any IO error
results in SATA PHY speed down and ata_set_mode() failure lowers
transfer mode. The last try always puts a device into PIO-0.
After each failure, the whole port is reset to make sure that the
controller and all the devices are in a known and stable state. The
reset also applies SATA SPD configuration if necessary.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Implement ata_down_xfermask_limit(). This function manipulates
@dev->pio/mwdma/udma_mask such that the next lower transfer mode is
selected. This will be used to improve ata_bus_probe() failure
handling and later by EH.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Some devices react badly if resets are performed back-to-back. Give
devices some time to breath and tell user that we're taking a nap.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Make ata_drive_probe_reset() use SATA SPD configuration. Hardreset
will be force if speed renegotiation is necessary. Also, if a
hardreset fails, PHY speed is stepped down and hardreset is retried
until the lowest speed is reached.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
ap->sata_spd_limit contrains SATA PHY speed of the port. It is
initialized to the configured value prior to probing thus preserving
BIOS configured value. hardreset is responsible for applying SPD
limit and sata_std_hardreset() is updated to do that. SATA SPD limit
will be used to enhance failure handling during probing and later by
EH.
This patch also normalizes some comments around affected code.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Don't overwrite SPD setting during hard reset. This change has the
(intended) side effect of honoring the BIOS configuration.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
When ata_set_mode() fails on a device, make ata_set_mode() return
error code and pointer to the device instead of disabling it directly.
This gives more control to higher level driving logic.
This patch does not change the end result (configured transfer mode)
although it may make libata repeat mode configuration to the peer of a
failing device. Later ata_bus_probe() rewrite will make full use of
this change.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Handle DRQ=1 ERR=1 situation. Revised according to what IDE try_to_flush_leftover_data() does.
Changes:
- For ATA PIO writes and ATAPI devices, just stop the HSM and let EH handle it.
- For ATA PIO reads, read only one block of junk data and then let EH handle it.
Signed-off-by: Albert Lee <albertcc@tw.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Merge ata_host_set_pio() and ata_host_set_dma() into ata_set_mode()
and use function-level *dev to iterate over devices. This eases
soon-to-follow ata_set_mode() interface change.
While at it, kill an unnecessary comment and normalize others.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Make ata_set_mode() return without doing anything if there is no
device on the port. This is in preparation for ata_bus_probe()
changes.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This patch renames ata_dev_present() to ata_dev_enabled() and adds
ata_dev_disabled(). This is to discern the state where a device is
present but disabled from not-present state. This disctinction is
necessary when configuring transfer mode because device selection
timing must not be violated even if a device fails to configure.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Make do_probe_reset() generic by pushing classification check into
ata_drive_probe_reset() and rename it to ata_do_reset(). This will be
used by EH reset.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Separate out ata_spd_string() from sata_print_link_status(). This
will be used by SATA spd configuration routines.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
ata_bus_probe() uses unsigned int rc to receive negative errno and
returns the converted unsigned int value. Convert temporary variables
to int and make ata_bus_probe() return negative errno on failure.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Make ata_set_mode() return correct error value when ata_dev_set_mode()
fails.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
ata_xfer_tbl is terminated by entry with -1 as ->shift. However,
->shift was unsigned int making the termination condition bogus. This
patch converts ->shift and ->bits to int.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
There is no reason for the issuer to diddle with a failed qc as the
issuer has complete control over when a qc gets freed (usually in
->complete_fn). Make ata_qc_issue() responsible for completing qcs
which failed to issue.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
On sg_err failure path, ata_qc_issue() doesn't mark the qc active
before returning. This triggers WARN_ON() in __ata_qc_complete() when
the qc gets completed. This patch moves ap->active_tag and
QCFLAG_ACTIVE setting to the top of the function.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
print out information for ATAPI devices with CDB interrupts
Signed-off-by: Albert Lee <albertcc@tw.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
ata_dev_init_params() fixes:
- Get the "heads" and "sectors" parameters from caller instead of implicitly from dev->id[].
- Return AC_ERR_INVALID instead of 0 if an invalid parameter is found
Signed-off-by: Albert Lee <albertcc@tw.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Alan Cox <alan@redhat.com>
Last of the set, just clean up some oddments. Assuming the whole set is
now ok then the remaining differences are the setup of PIO_0 at reset
and the ->data_xfer method.
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Add a field to the host_set called 'flags' (was host_set_flags changed
to suit Jeff)
Add a simplex_claimed field so we can remember who owns the DMA channel
Add a ->mode_filter() hook to allow drivers to filter modes
Add docs for mode_filter and set_mode
Filter according to simplex state
Filter cable in core
This provides the needed framework to support all the mode rules found
in the PATA world. The simplex filter deals with 'to spec' simplex DMA
systems found in older chips. The cable filter avoids duplicating the
same rules in each chip driver with PATA. Finally the mode filter is
neccessary because drive/chip combinations have errata that forbid
certain modes with some drives or types of ATA object.
Drive speed setup remains per channel for now and the filters now use
the framework Tejun put into place which cleans them up a lot from the
older libata-pata patches.
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
I think this is still needed with the new probe code (which btw seems to
be missing docs in upstream ?).
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Some hardware doesn't want the usual mode setup logic running. This
allows the hardware driver to replace it for special cases in the least
invasive way possible.
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Some CD-ROM drives are slow to clear DRQ, after the last data block
is read by PIO. Use ata_wait_idle() after reading the last data block.
Signed-off-by: Albert Lee <albertcc@tw.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Current irq-pio checks ERR bit and stops on ERR before it does anything else.
This behavior doesn't look right.
The DRQ bit should take higher precedence than the ERR bit.
Changes:
- Let the HSM do the data transfer whenever the
device asks for DRQ bit, even if the ERR bit is set.
- For DRQ=1 ERR=1, don't trust the data
Signed-off-by: Albert Lee <albertcc@tw.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Make the the in_wq check easier to read as an inline function.
Signed-off-by: Albert Lee <albertcc@tw.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
ata_check_atapi_dma() fix for LLDDs with the ATA_FLAG_PIO_POLLING flag.
Signed-off-by: Albert Lee <albertcc@tw.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Cleanup the following unused functions:
- ata_pio_poll()
- ata_pio_complete()
- ata_pio_first_block()
- ata_pio_block()
- ata_pio_error()
ap->pio_task_timeout and other enums.
Signed-off-by: Albert Lee <albertcc@tw.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Convert ata_pio_task() to use the new ata_hsm_move().
Changes:
- refactor ata_pio_task() to poll device status register and
- call the new ata_hsm_move() when device indicates it is not BSY.
Signed-off-by: Albert Lee <albertcc@tw.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Let ata_hsm_move() work with both irq-pio and polling pio codepath.
Changes:
- add a new parameter "in_wq" for polling pio
- add return value "poll_next" to tell polling pio task whether the HSM is finished
- merge code from ata_pio_first_block() to the HSM_ST_FIRST state.
- call ata_poll_qc_complete() if called from the workqueue
Signed-off-by: Albert Lee <albertcc@tw.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Minor fix for ata_hsm_move() to work with ata_host_intr().
Changes:
- WARN_ON() and comment fix
- Make the HSM_ST_LAST device status checking more rigid.
- Treat unknown HSM state as BUG().
Signed-off-by: Albert Lee <albertcc@tw.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Move out the irq-pio HSM code from ata_host_intr() to the new ata_hsm_move() function verbatim.
Signed-off-by: Albert Lee <albertcc@tw.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
atapi_packet_task() was replaced by ata_pio_task().
Remove the unused atapi_packet_task().
Signed-off-by: Albert Lee <albertcc@tw.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Fix merge problem with upstream.
Changes:
1. add missing dev->cdb_len = 16 for ATA devices
2. use ata_pio_task instead of atapi_packet_task
Signed-off-by: Albert Lee <albertcc@tw.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Add FIXME above ata_dev_xfermask noting that the current
implementation limits all transfer modes to the fastest of the slowest
device on a port which isn't necessary.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
ata_bus_softreset() should return AC_ERR_* on failure not arbitrary
positive number. While at it, reformat comment above it.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Acked-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
E.D.D. has no user in-tree and mostly useless. Kill it. For possible
out-of-tree users, add a nice warning message and error handling if
LLDD doesn't report any useable reset mechanism (and thus tries to use
E.D.D.).
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Remove some of the dependence on the host_set struct
in preparation for supporting SAS HBAs. Adds a struct device
pointer to the ata_port struct.
Signed-off-by: Brian King <brking@us.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
At the moment libata doesn't pass pm_message_t down ata_device_suspend.
This causes drives to be powered down when we just want a freeze,
causing unnecessary wear and tear. This patch gets pm_message_t passed
down so that it can be used to determine whether to power down the
drive.
Signed-off-by: Nigel Cunningham <nigel@suspend2.net>
drivers/scsi/libata-core.c | 5 +++--
drivers/scsi/libata-scsi.c | 4 ++--
drivers/scsi/scsi_sysfs.c | 2 +-
include/linux/libata.h | 4 ++--
include/scsi/scsi_host.h | 2 +-
5 files changed, 9 insertions(+), 8 deletions(-)
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Make ata_set_mode() responsible for determining whether to take port
or device offline on failure. ata_dev_set_xfermode() and
ata_dev_set_mode() indicate error to the caller instead of disabling
port directly on failure. Also, for consistency, ata_dev_present()
check is done in ata_set_mode() instead of ata_dev_set_mode().
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
We may or may not disable a device after ata_dev_configure() fails.
Kill 'not supported, ignoring' message in ata_dev_configure() and use
ata_dev_disable() in ata_bus_probe().
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This patch implements ata_dev_disable() which prints a warning message
and takes @dev offline. Currently, this is done by explicitly
incrementing dev->class with case-by-case warning messages. Giving
user clear indication when libata gives up will be more important as
libata will be doing more retries.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
libata core is being changed to disallow port/device disable on lower
layers. However, some LLDDs (sata_mv) directly disable port on
command failure. This patch makes ata_exec_internal() check whether a
port got disabled after an internal command. If it is, AC_ERR_SYSTEM
is added to err_mask and the port gets re-enabled.
As internal command failure results in device disable for drivers
which don't implement newer reset/EH callbacks, this change results in
no behavior change for single device per port controllers. For
slave-possible LLDDs which disable port on command failure, (1) such
drivers don't exist currently, (2) issuing command to the other device
of once-disabled port shouldn't result in catastrophe even if such
driver exists. So, this should be enough as a temporary measure.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Now that each ata_device has xfer masks, per-dev limits can be made
per-dev instead of per-port. Make per-dev limits per-dev.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Add per-dev pio/mwdma/udma_mask. All transfer mode limits used to be
applied to ap->*_mask which unnecessarily restricted other devices
sharing the port. This change will also benefit later EH speed down
and hotplug.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Not much to say here except that some drives have fixed and bad firmware
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
The current code follows the spec but uses an overlong delay. This would
be great if the hardware did. Several vendors however forget the D7
pulldown. Fortunately 0xFF isnt a sane reset state so we can use it to
skip detection as is done in drivers/ide. (ie this is a tested solution
over a long time)
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Alan noted: "bmdma may be zero but the bmdma_irq_clear function gets
called even in this case during pure PIO operation. Check we have a
bmdma before we use it."
I fixed this by adding a check for zero. While was I there, I fixed the
non-standard indentation of the small function's code.
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Add some dummy noop functions for use by libata clients
that do not need to do anything. Future SAS patches will
utilize these functions.
Signed-off-by: Brian King <brking@us.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
SCSI midlayer has moved hostt->eh_timed_out to transport template. As
libata doesn't need full-blown transport support yet, implement
minimal transport for libata. No transport class or whatsoever, just
empty transport template with ->eh_timed_out hook.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Move IDENTIFY info printing from ata_dev_read_id() to
ata_dev_configure() and print only if @print_info is non-zero. This
kills duplicate IDENTIFY info printing during probing.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
dev->id is used many times in ata_dev_configure(). Use local variable
id instead for shorter notation.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Check bit 2 of Word 53 for Word 88 validity before using Word 88 to
determine UDMA mask. Note that the original xfer mask implementation
using ata_get_mode_mask() didn't consider bit 2 of Word 53. This
patch introduces different (correct) behavior.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
ata_bus_probe() didn't set classes[] properly for port disabled case
of ->phy_reset() compatibility path. This patch moves classes[]
initialization and normalization out of ->probe_reset block such that
it applies to both ->probe_reset and ->phy_reset paths.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
ata_bus_probe() didn't initialize classes[] properly with
ATA_DEV_UNKNOWN. As ->probe_reset() is allowed to leave @classes
alone when no device is present, this results in garbage class values.
ATM, the only affected driver is ata_piix.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Cc: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Preceding xfer_mask changes make the following functions unused.
ata_pio_modes(), base_from_shift(), ata_pr_blacklisted(), fgb()
Kill them. Also, as xfer_mode_str[] is now only used by
ata_mode_string(), move it into the function.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Use xfer_mask helpers to determine transfer mode. This rewrite also
makes transfer mode determination done before any actual
configuration. This patch doesn't result in any functional changes.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Replace quick & dirty max transfer mode determination in
ata_dev_configure() with ata_id_xfermask(). While at it, rename
xfer_modes variable to xfer_mask and make it unsigned int for
consistency.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Add ata_pack_xfermask(), ata_xfer_mask2mode(), ata_xfer_mode2mask(),
ata_xfer_mode2shift() and ata_id_xfermask(). These functions will be
used by following patches to simplify xfer_mask handling.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Add ATA_BITS_*, ATA_MASK_* macros and reorder xfer_mask fields such
that higher transfer mode is placed at higher order bit. As thie
reordering breaks ata_mode_string(), this patch also rewrites
ata_mode_string().
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Make pio_task and atapi_packet_task use port_task.
atapi_packet_task() is moved upward such that it's right after
ata_pio_task(). This position is more natural and makes adding
prototype for ata_qc_issue_prot() unnecessary.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Implement port_task. LLDD's can schedule a function to be executed
with context after specified delay. libata core takes care of
synchronization against EH. This is generalized form of pio_task and
packet_task which are tied to PIO hsm implementation.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Revalidate device after transfer mode configuration. This also makes
dev->id up-to-date.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
ata_dev_revalidate() re-reads IDENTIFY PAGE of the given device and
makes sure it's the same device as the configured one. Once it's
verified that it's the same device, @dev is configured according to
newly read IDENTIFY PAGE. Note that revalidation currently doesn't
invoke transfer mode reconfiguration.
Criteria for 'same device'
* same class (of course)
* same model string
* same serial string
* if ATA, same n_sectors (to catch geometry parameter changes)
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Add @print_info argument to ata_dev_configure(). Details of
configured device is printed only when @pinfo_info is non-zero. This
patch also reorganizes device info printing for LBA case to simplify
code (necessary as @print_info adds extra nesting around it).
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
In ata_dev_configure(), reinitialize parameters before configuring.
This change is for revalidation and hotplug. As ata_dev_configure()
can be entered multiple times, parameters need to be reinitialized.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Now that reset and configure are converted such that they don't modify
or disable libata core data structures, reorganize ata_bus_probe() to
reflect this change.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
ata_dev_config() needs to be done everytime a device is configured.
Fold it into ata_dev_configure().
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Separate out ata_dev_configure() from ata_dev_identify() such that
ata_dev_configure() only configures @dev according to passed in @id.
The function now does not disable device on failure, it just returns
appropirate error code.
As this change leaves ata_dev_identify() with only reading ID, calling
configure and disabling devices according to the results, this patch
also kills ata_dev_identify() and inlines the logic into
ata_bus_probe().
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Convert dev->id from array to pointer. This is to accomodate
revalidation. During revalidation, both old and new IDENTIFY pages
should be accessible and single ->id array doesn't cut it.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Tejun Heo
Jeff Garzik
Albert Lee
Alan Cox
Brian King
Nigel Cunningham