linux.git/drivers/md/Makefile, branch v2.6.30

md/raid6: move raid6 data processing to raid6_pq.ko

2009-03-31T04:09:39+00:00

Move the raid6 data processing routines into a standalone module
(raid6_pq) to prepare them to be called from async_tx wrappers and other
non-md drivers/modules.  This precludes a circular dependency of raid456
needing the async modules for data processing while those modules in
turn depend on raid456 for the base level synchronous raid6 routines.

To support this move:
1/ The exportable definitions in raid6.h move to include/linux/raid/pq.h
2/ The raid6_call, recovery calls, and table symbols are exported
3/ Extra #ifdef __KERNEL__ statements to enable the userspace raid6test to
   compile

Signed-off-by: Dan Williams 
Signed-off-by: NeilBrown

cleanup drivers/md/Makefile

2009-03-31T03:27:02+00:00

Use the -y variables instead of the old -objs so we can easily add
conditional objects to the modules.  Also always use += to add
subobjects to avoid problems when placing additional objects in
some place in the file.

Signed-off-by: Christoph Hellwig 
Signed-off-by: NeilBrown

dm snapshot: split out exception store implementations

2009-01-06T03:05:17+00:00

Move the existing snapshot exception store implementations out into
separate files.  Later patches will place these behind a new
interface in preparation for alternative implementations.

Signed-off-by: Alasdair G Kergon

dm: add name and uuid to sysfs

2009-01-06T03:05:12+00:00

Implement simple read-only sysfs entry for device-mapper block device.

This patch adds a simple sysfs directory named "dm" under block device
properties and implements
	- name attribute (string containing mapped device name)
	- uuid attribute (string containing UUID, or empty string if not set)

The kobject is embedded in mapped_device struct, so no additional
memory allocation is needed for initializing sysfs entry.

During the processing of sysfs attribute we need to lock mapped device
which is done by a new function dm_get_from_kobj, which returns the md
associated with kobject and increases the usage count.

Each 'show attribute' function is responsible for its own locking.

Signed-off-by: Milan Broz 
Signed-off-by: Alasdair G Kergon

dm raid1: separate region_hash interface part1

2008-10-21T16:45:06+00:00

Separate the region hash code from raid1 so it can be shared by forthcoming
targets.  Use BUG_ON() for failed async dm_io() calls.

Signed-off-by: Heinz Mauelshagen 
Signed-off-by: Alasdair G Kergon

[SCSI] scsi_dh: Remove hardware handler infrastructure from dm

2008-06-05T14:23:42+00:00

This patch just removes infrastructure that provided support for hardware
handlers in the dm layer as it is not needed anymore.

Signed-off-by: Chandra Seetharaman 
Acked-by: Alasdair G Kergon 
Signed-off-by: James Bottomley

[SCSI] scsi_dh: Remove hardware handlers from dm

2008-06-05T14:23:41+00:00

This patch removes the 3 hardware handlers that currently exist
under dm as the functionality is moved to SCSI layer in the earlier
patches.

[jejb: removed more makefile hunks and rejection fixes]
Signed-off-by: Chandra Seetharaman 
Acked-by: Alasdair G Kergon 
Signed-off-by: James Bottomley

dm: move include files

2008-04-25T12:26:55+00:00

Publish the dm-io, dm-log and dm-kcopyd headers in include/linux.

Signed-off-by: Alasdair G Kergon

dm log: move dirty region log code into separate module

2008-04-25T12:26:39+00:00

Move the dirty region log code into a separate module so
other targets can share the code.

Signed-off-by: Heinz Mauelshagen 
Signed-off-by: Alasdair G Kergon

dm: add uevent to core

2007-10-20T01:01:24+00:00

This patch adds a uevent skeleton to device-mapper.

Signed-off-by: Mike Anderson 
Signed-off-by: Alasdair G Kergon