From: Jens Axboe <jens.axboe@oracle.com>
Date: Wed, 16 Sep 2009 13:13:54 +0000 (+0200)
Subject: writeback: separate starting of sync vs opportunistic writeback
X-Git-Tag: v2.6.32-rc1~672^2~7
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b6e51316daede0633e9274e1e30391cfa4747877;p=pandora-kernel.git

writeback: separate starting of sync vs opportunistic writeback

bdi_start_writeback() is currently split into two paths, one for
WB_SYNC_NONE and one for WB_SYNC_ALL. Add bdi_sync_writeback()
for WB_SYNC_ALL writeback and let bdi_start_writeback() handle
only WB_SYNC_NONE.

Push down the writeback_control allocation and only accept the
parameters that make sense for each function. This cleans up
the API considerably.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
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