linux-toradex.git/Documentation/md.txt, branch v3.0.29

md:Documentation/md.txt - fix typo

2011-06-09T01:43:04+00:00

Reported-by: CoolCold 
Signed-off-by: NeilBrown

md: Update documentation for sync_min and sync_max entries

2011-04-20T05:40:01+00:00

linux/Documentation/md.txt is missing description for sync_min and
sync_max entries.
This patch adds description for sync_min and sync_max entries.

Signed-off-by: Roman Ovchinnikov 
Signed-off-by: NeilBrown

Documentation: update broken web addresses.

2010-08-04T13:21:40+00:00

Below you will find an updated version from the original series bunching all patches into one big patch
updating broken web addresses that are located in Documentation/*
Some of the addresses date as far far back as 1995 etc... so searching became a bit difficult,
the best way to deal with these is to use web.archive.org to locate these addresses that are outdated.
Now there are also some addresses pointing to .spec files some are located, but some(after searching
on the companies site)where still no where to be found. In this case I just changed the address
to the company site this way the users can contact the company and they can locate them for the users.

Signed-off-by: Justin P. Mattock 
Signed-off-by: Thomas Weber 
Signed-off-by: Mike Frysinger 
Cc: Paulo Marques 
Cc: Randy Dunlap 
Cc: Michael Neuling 
Signed-off-by: Jiri Kosina

Documentation/: it's -> its where appropriate

2010-04-23T00:09:52+00:00

Fix obvious cases of "it's" being used when "its" was meant.

Signed-off-by: Francis Galiegue 
Acked-by: Randy Dunlap 
Signed-off-by: Jiri Kosina

md: add 'recovery_start' per-device sysfs attribute

2009-12-14T01:58:57+00:00

Enable external metadata arrays to manage rebuild checkpointing via a
md/dev-XXX/recovery_start attribute which reflects rdev->recovery_offset

Also update resync_start_store to allow 'none' to be written, for
consistency.

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

md: Support write-intent bitmaps with externally managed metadata.

2009-12-14T01:51:41+00:00

In this case, the metadata needs to not be in the same
sector as the bitmap.
md will not read/write any bitmap metadata.  Config must be
done via sysfs and when a recovery makes the array non-degraded
again, writing 'true' to 'bitmap/can_clear' will allow bits in
the bitmap to be cleared again.

Signed-off-by: NeilBrown

md: support updating bitmap parameters via sysfs.

2009-12-14T01:51:41+00:00

A new attribute directory 'bitmap' in 'md' is created which
contains files for configuring the bitmap.
'location' identifies where the bitmap is, either 'none',
or 'file' or 'sector offset from metadata'.
Writing 'location' can create or remove a bitmap.
Adding a 'file' bitmap this way is not yet supported.
'chunksize' and 'time_base' must be set before 'location'
can be set.

'chunksize' can be set before creating a bitmap, but is
currently always over-ridden by the bitmap superblock.

'time_base' and 'backlog' can be updated at any time.


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

Documentation/md.txt update

2009-03-31T04:18:37+00:00

Update md.txt to reflect recent changes in a number of sysfs
attributes.

Signed-off-by: NeilBrown

md: Tidy up rdev_size_store a bit:

2008-07-21T04:22:18+00:00

 - used strict_strtoull in place of simple_strtoull
 - use my_mddev in place of rdev->mddev (they have the same value)
and more significantly,
 - don't adjust mddev->size to fit, rather reject changes which make
   rdev->size smaller than mddev->size

Adjusting mddev->size is a hangover from bind_rdev_to_array which
does a similar thing.  But it really is a better design to insist that
mddev->size is set as required, then the rdev->sizes are set to allow
for that.  The previous way invites confusion.

Signed-off-by: NeilBrown

Make sure all changes to md/dev-XX/state are notified

2008-06-27T22:31:44+00:00

The important state change happens during an interrupt
in md_error.  So just set a flag there and call sysfs_notify
later in process context.

Signed-off-by: Neil Brown