tree cb88bac09865787eb17fb7e98854e25906729717
parent 60979115a69e0e7916a1c1796f902264f1350977
author Jaegeuk Kim <jaegeuk@kernel.org> 1410468595 -0700
committer Jaegeuk Kim <jaegeuk@kernel.org> 1411495812 -0700

f2fs: use meta_inode cache to improve roll-forward speed

Previously, all the dnode pages should be read during the roll-forward recovery.
Even worsely, whole the chain was traversed twice.
This patch removes that redundant and costly read operations by using page cache
of meta_inode and readahead function as well.

Reviewed-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>