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authorLaurent Vivier <Laurent.Vivier@bull.net>2008-04-29 12:02:46 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2008-04-29 19:06:23 +0400
commit48cf6061b30205b29b306bf9bc22dd6f0b091461 (patch)
treebba7827177587a17160c29392651aa27aa7f98fd /drivers/mtd/maps/sc520cdp.c
parent8c4dd6068221cd1d0d90490ace80eb4344914a8c (diff)
downloadlinux-48cf6061b30205b29b306bf9bc22dd6f0b091461.tar.xz
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 <paul.clements@steeleye.com> Signed-off-by: Laurent Vivier <Laurent.Vivier@bull.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/mtd/maps/sc520cdp.c')
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