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authorNeilBrown <neilb@suse.de>2006-01-06 11:21:06 +0300
committerLinus Torvalds <torvalds@g5.osdl.org>2006-01-06 19:34:10 +0300
commit83303b613d00718b07ec0a4dee7c99aa66629d96 (patch)
treee2c7c113d2f2f69aa426c3a3a355d84089bb13ce /Documentation/md.txt
parent6961ece46c7d02de1bb83914900608e39633787d (diff)
downloadlinux-83303b613d00718b07ec0a4dee7c99aa66629d96.tar.xz
[PATCH] md: allow available size of component devices to be set via sysfs
Signed-off-by: Neil Brown <neilb@suse.de> Acked-by: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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diff --git a/Documentation/md.txt b/Documentation/md.txt
index 866a1a887547..7b3d471bb9f0 100644
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@@ -250,6 +250,13 @@ Each directory contains:
the device before this offset us not touched, unless it is
used for storing metadata (Formats 1.1 and 1.2).
+ size
+ The amount of the device, after the offset, that can be used
+ for storage of data. This will normally be the same as the
+ component_size. This can be written while assembling an
+ array. If a value less than the current component_size is
+ written, component_size will be reduced to this value.
+
An active md device will also contain and entry for each active device
in the array. These are named