On Wed, Jan 30, 2019 at 04:07:30PM -0800, Pavel Shilovsky wrote: > Commit 28eb24ff75c5 ("cifs: Always resolve hostname before reconnecting"). > > In case a hostname resolves to a different IP address (e.g. long > running mounts), make sure to resolve it every time prior to calling > generic_ip_connect() in reconnect. > > This patch needs user space changes of cifs.upcall that set a timeout > value for the "dns_resolver" key. Wait, you are requiring userspace to upgrade tools to support this? And you think that will happen to all systems running older kernels? This really feels like a new feature being added, what bug is this fixing that requires it to be backported to all of the stable kernel trees? > > Suggested-by: Steve French <stfrench@xxxxxxxxxxxxx> > Signed-off-by: Paulo Alcantara <palcantara@xxxxxxx> > Signed-off-by: Steve French <stfrench@xxxxxxxxxxxxx> > Signed-off-by: Pavel Shilovsky <pshilov@xxxxxxxxxxxxx> At the very least, I would like the CIFS maintainer to ack this type of thing before accepting it, as it was not tagged for the stable kernels for some reason... thanks, greg k-h