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authorChris Webb <chris@arachsys.com>2008-06-28 08:31:46 +1000
committerNeil Brown <neilb@notabene.brown>2008-06-28 08:31:46 +1000
commit0cd17fec983b6bca505eecee1af33138687220b6 (patch)
tree0b2209223c9aeeff0415e9a11c58f8801607006b /include/linux/raid
parent526647320e696f434647f38421a6ecf65b859c43 (diff)
Support changing rdev size on running arrays.
From: Chris Webb <chris@arachsys.com> Allow /sys/block/mdX/md/rdY/size to change on running arrays, moving the superblock if necessary for this metadata version. We prevent the available space from shrinking to less than the used size, and allow it to be set to zero to fill all the available space on the underlying device. Signed-off-by: Chris Webb <chris@arachsys.com> Signed-off-by: Neil Brown <neilb@suse.de>
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