Messages in this thread | | | Date | Thu, 11 Jan 2007 20:46:01 -0800 (PST) | From | Linus Torvalds <> | Subject | Re: O_DIRECT question |
| |
On Fri, 12 Jan 2007, Nick Piggin wrote: > > We are talking about about fragmentation. And limiting pagecache to try to > avoid fragmentation is a bandaid, especially when the problem can be solved > (not just papered over, but solved) in userspace.
It's not clear that the problem _can_ be solved in user space.
It's easy enough to say "never allocate more than a page". But it's often not REALISTIC.
Very basic issue: the perfect is the enemy of the good. Claiming that there is a "proper solution" is usually a total red herring. Quite often there isn't, and the "paper over" is actually not papering over, it's quite possibly the best solution there is.
Linus - 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/
| |