From: Jeff Moyer <jmoyer@redhat.com>
Date: Fri, 2 Oct 2009 22:56:53 +0000 (-0400)
Subject: block: get rid of the WRITE_ODIRECT flag
X-Git-Tag: v2.6.33-rc1~379^2~83
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1af60fbd759d31f565552fea315c2033947cfbe6;p=pandora-kernel.git

block: get rid of the WRITE_ODIRECT flag

Hi,

The WRITE_ODIRECT flag is only used in one place, and that code path
happens to also call blk_run_address_space.  The introduction of this
flag, then, could result in the device being unplugged twice for every
I/O.

Further, with the batching changes in the next patch, we don't want an
O_DIRECT write to imply a queue unplug.

Signed-off-by: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
---

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