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Andrew Morton wrote: > Well, backup programs are a unique case. Let's say instead that the user > has just generated a 600MB ISO image. > > The kernel *just doesn't know* whether the user will next try to read the > kernel tree or will next try to read that ISO image. > > That, Rik, is my point, and is the entire point of this work. I still don't understand why "the backup program flushed my data out of the cache with POSIX_FADV_DONTNEED" is an improvement over "the backup program flushed my data out of the cache by reading other files". Your code may be useful for a few specialized situations, but I don't see it actually fixing most of the examples you gave in your announcement, except for the DVD copying one. -- Politics is the struggle between those who want to make their country the best in the world, and those who believe it already is. Each group calls the other unpatriotic. - 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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