LU-433 remove jbd2-jcberr patch from kernel

LU-433 remove jbd2-jcberr patch from kernel

In the upstream ext4 code there is a new functionality to allow a
per-commit callback to be set (j_commit_callback), which is used by
the mballoc code to manage free space bitmaps after deleted blocks
have been released. We expand it to contain multiple different
callbacks.

Signed-off-by: Bobi Jam <bobijam@whamcloud.com>
Change-Id: I6397ccabd8d729658cf2ee13c9c3731a9eb31219
Reviewed-on: http://review.whamcloud.com/983
Tested-by: Hudson
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Tested-by: Maloo <whamcloud.maloo@gmail.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>