From e878167af92fda03eb3a8597eec24128d4d47c43 Mon Sep 17 00:00:00 2001
From: ZhangZhen <zhenzhang.zhang@huawei.com>
Date: Wed, 26 Feb 2014 10:32:41 +0800
Subject: [PATCH] ext2/3: use prandom_u32() instead of get_random_bytes()

Many of the uses of get_random_bytes() do not actually need
cryptographically secure random numbers.  Replace those uses with a
call to prandom_u32(), which is faster and which doesn't consume
entropy from the /dev/random driver.

The commit dd1f723bf56bd96efc9d90e9e60dc511c79de48f has made that for
ext4, and i did the same for ext2/3.

Signed-off-by: Zhang Zhen <zhenzhang.zhang@huawei.com>
Signed-off-by: Jan Kara <jack@suse.cz>
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