linux-toradex.git/Documentation/md.txt, branch v2.6.24-rc7

md: allow reshape_position for md arrays to be set via sysfs

2007-05-09T19:30:57+00:00

"reshape_position" records how much progress has been made on a "reshape"
(adding drives, changing layout or chunksize).

When it is set, the number of drives, layout and chunksize can have
two possible values, an old an a new.

So allow these different values to be visible, and allow both old and new to
be set: Set the old ones first, then the reshape_position, then the new
values.

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

Fix typos in Documentation/: 'Q'-'R'

2006-10-03T20:54:15+00:00

This patch fixes typos in various Documentation txts. The patch addresses
some words starting with the letters 'Q'-'R'.

Signed-off-by: Matt LaPlante 
Acked-by: Randy Dunlap 
Signed-off-by: Adrian Bunk

Fix typos in Documentation/: 'N'-'P'

2006-10-03T20:52:05+00:00

This patch fixes typos in various Documentation txts. The patch addresses
some words starting with the letters 'N'-'P'.

Signed-off-by: Matt LaPlante 
Acked-by: Randy Dunlap 
Signed-off-by: Adrian Bunk

Fix typos in Documentation/: 'D'-'E'

2006-10-03T20:47:42+00:00

This patch fixes typos in various Documentation txts. This patch addresses
some words starting with the letters 'D'-'E'.

Signed-off-by: Matt LaPlante 
Signed-off-by: Adrian Bunk

Fix some typos in Documentation/: 'A'

2006-10-03T20:45:33+00:00

This patch fixes typos in various Documentation txts.
This patch addresses some words starting with the letter 'A'.

Signed-off-by: Matt LaPlante 
Acked-by: Randy Dunlap 
Acked-by: Alan Cox 
Signed-off-by: Adrian Bunk

[PATCH] md: fix duplicity of levels in md.txt

2006-10-03T15:04:18+00:00

md.txt has two sections describing the 'level' sysfs attribute, and some of
the text is out-of-date.  So make just one section, and make it right.

Cc: Christian Kujau 
Signed-off-by: Neil Brown 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] md: new sysfs interface for setting bits in the write-intent-bitmap

2006-10-03T15:04:17+00:00

Add a new sysfs interface that allows the bitmap of an array to be dirtied.
The interface is write-only, and is used as follows:

echo "1000" > /sys/block/md2/md/bitmap

(dirty the bit for chunk 1000 [offset 0] in the in-memory and on-disk
bitmaps of array md2)

echo "1000-2000" > /sys/block/md1/md/bitmap

(dirty the bits for chunks 1000-2000 in md1's bitmap)

This is useful, for example, in cluster environments where you may need to
combine two disjoint bitmaps into one (following a server failure, after a
secondary server has taken over the array).  By combining the bitmaps on
the two servers, a full resync can be avoided (This was discussed on the
list back on March 18, 2005, "[PATCH 1/2] md bitmap bug fixes" thread).

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

[PATCH] md: Allow the write_mostly flag to be set via sysfs

2006-06-26T16:58:40+00:00

It appears in /sys/mdX/md/dev-YYY/state
and can be set or cleared by writing 'writemostly' or '-writemostly'
respectively.

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

[PATCH] md: Allow resync_start to be set and queried via sysfs

2006-06-26T16:58:40+00:00

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

[PATCH] md: Allow raid 'layout' to be read and set via sysfs

2006-06-26T16:58:39+00:00

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