From: Thieu Le <thieule@chromium.org>
Date: Wed, 9 Mar 2011 00:26:03 +0000 (-0800)
Subject: ecryptfs: modify write path to encrypt page in writepage
X-Git-Tag: v2.6.39-rc1~18^2~7
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=57db4e8d73ef2b5e94a3f412108dff2576670a8a;p=pandora-kernel.git

ecryptfs: modify write path to encrypt page in writepage

Change the write path to encrypt the data only when the page is written to
disk in ecryptfs_writepage. Previously, ecryptfs encrypts the page in
ecryptfs_write_end which means that if there are multiple write requests to
the same page, ecryptfs ends up re-encrypting that page over and over again.
This patch minimizes the number of encryptions needed.

Signed-off-by: Thieu Le <thieule@chromium.org>
[tyhicks: Changed NULL .drop_inode sop pointer to generic_drop_inode]
Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
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