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Pavel Machek wrote: > > > Could you not change it back to a normal inode when refcount becomes 1? > > > > You can only do that if the cowid object has a pointer to the last > > remaining reference to it. That's possible, but more complicated and > > would incur a little more I/O per cow operation. > > You'd have to have pointers to all references to it... because you > can't tell in advance which one will be the last to go away. Exactly. Each of the cow pointers would need to be linked in a doubly linked list containing them all. -- Jamie - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ | ||||||||||
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