[PATCH] raid5 overlapping read hack
If we detect an overlap, we set a flag and wait for a wakeup. When requests are handled, if the flag was set, we perform the wakeup. Note that the code currently in -mm is badly broken. With this patch applied, it passes tests the use O_DIRECT to cause lots of overlapping requests. Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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