f2fs: avoid freqeunt write_inode calls
authorJaegeuk Kim <jaegeuk.kim@samsung.com>
Mon, 10 Jun 2013 00:17:01 +0000 (09:17 +0900)
committerJaegeuk Kim <jaegeuk.kim@samsung.com>
Fri, 14 Jun 2013 00:04:43 +0000 (09:04 +0900)
If update_inode is called, we don't need to do write_inode.
So, let's use a *dirty* flag for each inode.

Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>

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