From: Laurent Vivier Date: Tue, 29 Apr 2008 08:02:46 +0000 (-0700) Subject: NBD: allow nbd to be used locally X-Git-Tag: v2.6.26-rc1~443 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=48cf6061b30205b29b306bf9bc22dd6f0b091461;p=pandora-kernel.git NBD: allow nbd to be used locally This patch allows Network Block Device to be mounted locally (nbd-client to nbd-server over 127.0.0.1). It creates a kthread to avoid the deadlock described in NBD tools documentation. So, if nbd-client hangs waiting for pages, the kblockd thread can continue its work and free pages. I have tested the patch to verify that it avoids the hang that always occurs when writing to a localhost nbd connection. I have also tested to verify that no performance degradation results from the additional thread and queue. Patch originally from Laurent Vivier. Signed-off-by: Paul Clements Signed-off-by: Laurent Vivier Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- Reading git-diff-tree failed