From 5493749d2491380de2a06719a86125c122934c9d Mon Sep 17 00:00:00 2001
From: Theodore Ts'o <tytso@mit.edu>
Date: Tue, 2 Jun 2009 08:09:22 -0400
Subject: [PATCH] ext4: add EXT4_IOC_ALLOC_DA_BLKS ioctl

(cherry picked from commit ccd2506bd43113659aa904d5bea5d1300605e2a6)

Add an ioctl which forces all of the delay allocated blocks to be
allocated.  This also provides a function ext4_alloc_da_blocks() which
will be used by the following commits to force files to be fully
allocated to preserve application-expected ext3 behaviour.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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