From: Theodore Ts'o <tytso@mit.edu>
Date: Fri, 1 May 2015 20:56:45 +0000 (-0400)
Subject: ext4 crypto: simplify and speed up filename encryption
X-Git-Tag: omap-for-v4.2/wakeirq-drivers-v2~36^2~6
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5de0b4d0cd153c471640b13aae6ae6d18d0a4603;p=pandora-kernel.git

ext4 crypto: simplify and speed up filename encryption

Avoid using SHA-1 when calculating the user-visible filename when the
encryption key is available, and avoid decrypting lots of filenames
when searching for a directory entry in a directory block.

Change-Id: If4655f144784978ba0305b597bfa1c8d7bb69e63
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
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