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authorRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>2010-06-29 01:42:13 -0400
committerRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>2010-07-22 21:02:11 -0400
commit325020477a51ffa849418b3e38189fd266f2ae20 (patch)
treea02d99b61ed3b98fbbd56f857fdd46808326dff7 /Documentation/filesystems/nilfs2.txt
parent6c12516083cf51b6e576691ac6e20c4a32f4edb9 (diff)
nilfs2: do not update log cursor for small change
Super blocks of nilfs are periodically overwritten in order to record the recent log position. This shortens recovery time after unclean unmount, but the current implementation performs the update even for a few blocks of change. If the filesystem gets small changes slowly and continually, super blocks may be updated excessively. This moderates the issue by skipping update of log cursor if it does not cross a segment boundary. Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
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