On Thu, Aug 22, 2019 at 07:54:08AM -0700, Bart Van Assche wrote: > On 8/22/19 6:14 AM, Stefan Hajnoczi wrote: > > On Tue, Aug 20, 2019 at 10:29:58AM -0700, Bart Van Assche wrote: > > > Order head and tail stores properly against CQE / SQE memory accesses. > > > Use <asm/barrier.h> instead of the io_uring "barrier.h" header file. > > > > Where does this header file come from? > > > > Linux has an asm-generic/barrier.h file which is not uapi and therefore > > not installed in /usr/include. > > > > I couldn't find an asm/barrier.h in the Debian packages collection > > either. > > There two flavours of the asm/barrier.h header file present in the kernel > tree. I think that the arch/*/include/asm/barrier.h header files are > intended for kernel code and that the tools/include/asm/barrier.h header > file is intended for the user space code in the tools directory. Sorry, my mistake. I thought this was a liburing.git patch :P. Stefan
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