tree 7d348398a9e623324ca86eafd050b8c12abf3cea
parent 79efdd94111f30c373fce05e4e5822d8ff671c2a
author Jiro SEKIBA <jir@unicus.jp> 1248280429 +0900
committer Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> 1252920434 +0900

nilfs2: stop using periodic write_super callback

This removes nilfs_write_super and commit super block in nilfs
internal thread, instead of periodic write_super callback.

VFS layer calls ->write_super callback periodically.  However,
it looks like that calling back is ommited when disk I/O is busy.
And when cleanerd (nilfs GC) is runnig, disk I/O tend to be busy thus
nilfs superblock is not synchronized as nilfs designed.

To avoid it, syncing superblock by nilfs thread instead of pdflush.

Signed-off-by: Jiro SEKIBA <jir@unicus.jp>
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>