linux-toradex.git/drivers/md/dm-delay.c, branch v2.6.32.31

dm table: pass correct dev area size to device_area_is_valid

2009-07-23T19:30:42+00:00

Incorrect device area lengths are being passed to device_area_is_valid().

The regression appeared in 2.6.31-rc1 through commit
754c5fc7ebb417b23601a6222a6005cc2e7f2913.

With the dm-stripe target, the size of the target (ti->len) was used
instead of the stripe_width (ti->len/#stripes).  An example of a
consequent incorrect error message is:

  device-mapper: table: 254:0: sdb too small for target

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

dm target:s introduce iterate devices fn

2009-06-22T09:12:33+00:00

Add .iterate_devices to 'struct target_type' to allow a function to be
called for all devices in a DM target.  Implemented it for all targets
except those in dm-snap.c (origin and snapshot).

(The raid1 version number jumps to 1.12 because we originally reserved
1.1 to 1.11 for 'block_on_error' but ended up using 'handle_errors'
instead.)

Signed-off-by: Mike Snitzer 
Signed-off-by: Alasdair G Kergon 
Cc: martin.petersen@oracle.com

dm delay: support barriers

2009-06-22T09:12:23+00:00

Flush support for dm-delay target.

Signed-off-by: Mikulas Patocka 
Signed-off-by: Alasdair G Kergon

block: move bio list helpers into bio.h

2009-04-15T06:28:09+00:00

It's used by DM and MD and generally useful, so move the bio list
helpers into bio.h.

Signed-off-by: Christoph Hellwig 
Acked-by: Alasdair G Kergon 
Signed-off-by: Jens Axboe

dm: consolidate target deregistration error handling

2009-01-06T03:04:58+00:00

Change dm_unregister_target to return void and use BUG() for error
reporting.

dm_unregister_target can only fail because of programming bug in the
target driver. It can't fail because of user's behavior or disk errors.

This patch changes unregister_target to return void and use BUG if
someone tries to unregister non-registered target or unregister target
that is in use.

This patch removes code duplication (testing of error codes in all dm
targets) and reports bugs in just one place, in dm_unregister_target. In
some target drivers, these return codes were ignored, which could lead
to a situation where bugs could be missed.

Signed-off-by: Mikulas Patocka 
Signed-off-by: Alasdair G Kergon

dm: remove dm header from targets

2008-10-21T16:44:59+00:00

Change #include "dm.h" to #include  in all targets.
Targets should not need direct access to internal DM structures.

Signed-off-by: Mikulas Patocka 
Signed-off-by: Alasdair G Kergon

dm: bio_list macro renaming

2007-10-20T01:01:11+00:00

Remove BIO_LIST and DEFINE_BIO_LIST macros that gain us nothing
since contents are initialised to NULL.

Cc: Jan Engelhardt 
Signed-off-by: Alasdair G Kergon

dm delay: fix status

2007-10-20T01:01:04+00:00

Fix missing space in dm-delay target status output
if separate read and write delay are configured.

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

dm delay: fix ctr error paths

2007-10-20T01:01:02+00:00

Add missing 'dm_put_device' to dm-delay target constructor.

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

dm delay: cleanup

2007-07-12T22:01:08+00:00

Use setup_timer().
Replace semaphore with mutex.

Signed-off-by: Alasdair G Kergon 
Signed-off-by: Linus Torvalds