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authorRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>2011-05-04 20:23:57 +0400
committerRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>2011-05-10 17:21:45 +0400
commit619205da5b567504310daf829dede1187fa29bbc (patch)
treecd672bb647ff22c711d93437fc53821852f27eba /fs/nilfs2/super.c
parent56eb55388580ebd51f3bbd9af40ebb56849356af (diff)
downloadlinux-619205da5b567504310daf829dede1187fa29bbc.tar.xz
nilfs2: add ioctl which limits range of segment to be allocated
This adds a new ioctl command which limits range of segment to be allocated. This is intended to gather data whithin a range of the partition before shrinking the filesystem, or to control new log location for some purpose. If a range is specified by the ioctl, segment allocator of nilfs tries to allocate new segments from the range unless no free segments are available there. Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
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