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Message-Id: <200705030211.36293.a1426z@gawab.com> Date: Thu, 3 May 2007 02:11:36 +0300 From: Al Boldi <a1426z@...ab.com> To: linux-kernel@...r.kernel.org Subject: Re: Execute in place Hugh Dickins wrote: > 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. Thank GOD! Boy, was I worried there for a second. Now, if there were only an easy way to make tmpfs persistent? Thanks! -- Al - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.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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