On 08/12/2020 01:37, Al Viro wrote: > On Thu, Dec 03, 2020 at 02:30:46AM +0000, Pavel Begunkov wrote: >> Handle task works and lock it earlier before it starts killing off >> task's resources like mm. io_uring makes use of it a lot and it'd >> nicer to have all added task_work finding tasks in a consistent state. >> >> Signed-off-by: Pavel Begunkov <asml.sile...@gmail.com> >> --- >> >> Would it be correct? I clearly don't know all the exit invariants, but >> can't find any users relying on task_works in-between. > > You've just gotten rid of exit_task_work() anywhere after exit_files(). > And exit_mm() can trigger the final fput() just as easily as exit_files(). > > IOW, you have just made the effect of final close on exit() completely > asynchronous. > > NAK.
Ok, that's why it was a question. Thanks for making it clear -- Pavel Begunkov
