On Tue, Nov 20, 2018 at 08:14:19AM -0800, Tejun Heo wrote: > On Thu, Nov 15, 2018 at 09:09:54PM -0500, Radu Rendec wrote: > > kernfs_notify() does two notifications: poll and fsnotify. Originally, > > both notifications were done from scheduled work context and all that > > kernfs_notify() did was schedule the work. > > > > This patch simply moves the poll notification from the scheduled work > > handler to kernfs_notify(). The fsnotify notification still needs to be > > done from scheduled work context because it can sleep (it needs to lock > > a mutex). > > > > If the poll notification is time critical (the notified thread needs to > > wake as quickly as possible), it's better to do it from kernfs_notify() > > directly. One example is calling sysfs_notify_dirent() from a hardware > > interrupt handler to wake up a thread and handle the interrupt in user > > space. > > > > Signed-off-by: Radu Rendec <radu.ren...@gmail.com> > > Acked-by: Tejun Heo <t...@kernel.org> > > Greg, can you please route this one?
Sure, I'll queue it up soon... greg k-h
