On Fri, Oct 07, 2011 at 12:44:30AM +0400, Andrey Kuzmin wrote: > Perhaps you could just elaborate on "needs this feature"? In general, write > lock gives one exclusive access, so the need for additional read > (non-exclusive) lock does not appear easily understandable.
Usually it's because the low level code can be called both with and without locking and it doesn't know. But that usually can be avoided with some restructuring. -Andi -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
