Quoting Michael H. Warfield (m...@wittsend.com): > On Tue, 2013-09-24 at 17:19 -0500, Serge Hallyn wrote: > > Quoting Michael H. Warfield (m...@wittsend.com): > > > No. There's a change there, all right, and thank you for reminding me > > > of that, but (afaik) it's NOT in the kernel itself. It's a mount > > > option. It's that bloody MS_SHARED option and, to a lessor extent, > > > > There *is* a kernel change which dhansen was telling me about last > > week - I believe it's commit 4ed5e82fe77f4147cf386327c9a63a2dd7eff518. > > It allows you to now do > > > sudo mount -t tmpfs tmpfs /tmp/a > > sudo mount -o bind,remount,ro /tmp/a /tmp/b > > > In the past you had to first create a bind mount before you could > > mark it readonly, i.e. > > > sudo mount -t tmpfs tmpfs /tmp/a > > sudo mount --bind /tmp/a /tmp/b > > sudo mount -o remount,ro /tmp/b /tmp/b > > Interesting point. Very interesting. I guess I can dig into it an look > it up but, what rev did that commit show up in and does it impact the > way we handle things dependent on kernel version?
Oh, it's older than I thought. Came between 3.2 and 3.3. But no, it makes some things easier but shouldn't affect anything we do negatively. -serge ------------------------------------------------------------------------------ October Webinars: Code for Performance Free Intel webinars can help you accelerate application performance. Explore tips for MPI, OpenMP, advanced profiling, and more. Get the most from the latest Intel processors and coprocessors. See abstracts and register > http://pubads.g.doubleclick.net/gampad/clk?id=60133471&iu=/4140/ostg.clktrk _______________________________________________ Lxc-devel mailing list Lxc-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/lxc-devel
