From: Theodore Ts'o <tytso@mit.edu>
Date: Thu, 16 Oct 2008 14:06:27 +0000 (-0400)
Subject: ext4: let the block device know when unused blocks can be discarded
X-Git-Tag: v2.6.28-rc1~257^2~10
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8a0aba733db1adb5e1f0e828889a18f4c1c512de;p=pandora-kernel.git

ext4: let the block device know when unused blocks can be discarded

Let the block device know when unused blocks can be discarded, using
the new sb_issue_discard() interface.

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