On Thu, Sep 03, 2015 at 09:32:02AM +0300, Boaz Harrosh wrote: > On 09/02/2015 10:04 PM, Ross Zwisler wrote: > > On Tue, Sep 01, 2015 at 03:18:41PM +0300, Boaz Harrosh wrote: > <> > >> Apps expect all these to work: > >> 1. open mmap m-write msync ... close > >> 2. open mmap m-write fsync ... close > >> 3. open mmap m-write unmap ... fsync close > >> > >> 4. open mmap m-write sync ... > > > > So basically you made close have an implicit fsync? What about the flow that > > looks like this: > > > > 5. open mmap close m-write > > > > What? no, close means ummap because you need a file* attached to your vma > > And you miss-understood me, the vm_opts->close is the *unmap* operation not > the file::close() operation. > > I meant memory-cl_flush on unmap before the vma goes away. Ah, got it, thanks for the clarification. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>