linux-toradex.git/drivers/md/faulty.c, branch v2.6.30

md: centralize ->array_sectors modifications

2009-03-31T03:59:03+00:00

Get personalities out of the business of directly modifying
->array_sectors.  Lays groundwork to introduce policy on when
->array_sectors can be modified.

Reviewed-by: Andre Noll 
Signed-off-by: Dan Williams

md: add 'size' as a personality method

2009-03-31T03:57:49+00:00

In preparation for giving userspace control over ->array_sectors we need
to be able to retrieve the 'default' size, and the 'anticipated' size
when a reshape is requested.  For personalities that do not reshape emit
a warning if anything but the default size is requested.

In the raid5 case we need to update ->previous_raid_disks to make the
new 'default' size available.

Reviewed-by: Andre Noll 
Signed-off-by: Dan Williams

md: Make mddev->size sector-based.

2009-03-31T03:33:13+00:00

This patch renames the "size" field of struct mddev_s to "dev_sectors"
and stores the number of 512-byte sectors instead of the number of
1K-blocks in it.

All users of that field, including raid levels 1,4-6,10, are adjusted
accordingly. This simplifies the code a bit because it allows to get
rid of a couple of divisions/multiplications by two.

In order to make checkpatch happy, some minor coding style issues
have also been addressed. In particular, size_store() now uses
strict_strtoull() instead of simple_strtoull().

Signed-off-by: Andre Noll 
Signed-off-by: NeilBrown

md: move md_k.h from include/linux/raid/ to drivers/md/

2009-03-31T03:33:13+00:00

It really is nicer to keep related code together..

Signed-off-by: NeilBrown

md: move lots of #include lines out of .h files and into .c

2009-03-31T03:33:13+00:00

This makes the includes more explicit, and is preparation for moving
md_k.h to drivers/md/md.h

Remove include/raid/md.h as its only remaining use was to #include
other files.

Signed-off-by: NeilBrown

md: use list_for_each_entry macro directly

2009-01-08T21:31:08+00:00

The rdev_for_each macro defined in  is identical to
list_for_each_entry_safe, from , it should be defined to
use list_for_each_entry_safe, instead of reinventing the wheel.

But some calls to each_entry_safe don't really need a safe version,
just a direct list_for_each_entry is enough, this could save a temp
variable (tmp) in every function that used rdev_for_each.

In this patch, most rdev_for_each loops are replaced by list_for_each_entry,
totally save many tmp vars; and only in the other situations that will call
list_del to delete an entry, the safe version is used.

Signed-off-by: Cheng Renquan 
Signed-off-by: NeilBrown

md: check for memory allocation failure in faulty personality

2008-10-16T03:16:53+00:00

It's a fault injection module, but I don't think we should oops here.

Signed-off-by: Sven Wegener 
Signed-off-by: Andrew Morton 
Signed-off-by: Neil Brown

md: Make mddev->array_size sector-based.

2008-07-21T07:05:22+00:00

This patch renames the array_size field of struct mddev_s to array_sectors
and converts all instances to use units of 512 byte sectors instead of 1k
blocks.

Signed-off-by: Andre Noll 
Signed-off-by: NeilBrown

md: change ITERATE_RDEV to rdev_for_each

2008-02-06T18:41:19+00:00

As this is more in line with common practice in the kernel.  Also swap the
args around to be more like list_for_each.

Signed-off-by: Neil Brown 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

Drop 'size' argument from bio_endio and bi_end_io

2007-10-10T07:25:57+00:00

As bi_end_io is only called once when the reqeust is complete,
the 'size' argument is now redundant.  Remove it.

Now there is no need for bio_endio to subtract the size completed
from bi_size.  So don't do that either.

While we are at it, change bi_end_io to return void.

Signed-off-by: Neil Brown 
Signed-off-by: Jens Axboe