linux-toradex.git/drivers/md/dm-snap-transient.c, branch v3.4.2

md: Add in export.h for files using EXPORT_SYMBOL

2011-10-31T23:31:19+00:00

These files were getting the defines for EXPORT_SYMBOL because
device.h was including module.h.  But we are going to put an
end to that.  So add the proper export.h include now.

Signed-off-by: Paul Gortmaker

dm snapshot: move cow ref from exception store to snap core

2009-12-10T23:52:12+00:00

Store the reference to the snapshot cow device in the core snapshot
code instead of each exception store.  It can be accessed through the
new function dm_snap_cow().  Exception stores should each now maintain a
reference to their parent snapshot struct.

This is cleaner and makes part of the forthcoming snapshot merge code simpler.

Signed-off-by: Mike Snitzer 
Signed-off-by: Alasdair G Kergon 
Reviewed-by: Jonathan Brassow 
Cc: Mikulas Patocka

dm snapshot: add allocated metadata to snapshot status

2009-12-10T23:52:11+00:00

Add number of sectors used by metadata to the end of the snapshot's status
line.

Renamed dm_exception_store_type's 'fraction_full' to 'usage'.  Renamed
arguments to be clearer about what is being returned.  Also added
'metadata_sectors'.

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

dm snapshot: rename dm_snap_exception to dm_exception

2009-12-10T23:52:10+00:00

The exception structure is not necessarily just a snapshot
element (especially after we pull it out of dm-snap.c).

Renaming appropriately.

Signed-off-by: Jonathan Brassow 
Reviewed-by: Mike Snitzer 
Signed-off-by: Alasdair G Kergon

dm snapshot: move status to exception store

2009-04-02T18:55:35+00:00

Let the exception store types print out their status through
the new API, rather than having the snapshot code do it.

Adjust the buffer position to allow for the preceding DMEMIT in the
arguments to type->status().

Signed-off-by: Jonathan Brassow 
Signed-off-by: Alasdair G Kergon

dm snapshot: remove dm_snap header use

2009-04-02T18:55:33+00:00

Move useful functions out of dm-snap.h and stop using dm-snap.h.

Signed-off-by: Jonathan Brassow 
Signed-off-by: Alasdair G Kergon

dm exception store: move cow pointer

2009-04-02T18:55:33+00:00

Move COW device from snapshot to exception store.

Signed-off-by: Jonathan Brassow 
Signed-off-by: Alasdair G Kergon

dm exception store: move chunk_fields

2009-04-02T18:55:32+00:00

Move chunk fields from snapshot to exception store.

Signed-off-by: Jonathan Brassow 
Signed-off-by: Alasdair G Kergon

dm exception store: introduce registry

2009-04-02T18:55:31+00:00

Move exception stores into a registry.

Signed-off-by: Jonathan Brassow 
Signed-off-by: Alasdair G Kergon

dm exception store: separate type from instance

2009-04-02T18:55:30+00:00

Introduce struct dm_exception_store_type.

Signed-off-by: Jonathan Brassow 
Signed-off-by: Alasdair G Kergon