On Wed, 2 May 2007, Phillip Susi wrote: > Hugh Dickins wrote: > > tmpfs doesn't store its stuff in the page cache twice: that's true, > > and I didn't mean to imply otherwise. But tmpfs doesn't contain any > > support for rom memory: you'd have to copy from rom to tmpfs to use it. > > The question is, when you execute a binary on tmpfs, does its code segment get > mapped directly where it's at in the buffer cache, or does it get copied to > another page for the executing process? At least, assuming this is possible > due to the vma and file offsets of the segment being aligned.
Its pages are mapped directly into the executing process, without copying. Hugh - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
