On Tue, Jan 7, 2020 at 6:59 PM Sargun Dhillon <sargun@xxxxxxxxx> wrote: > > This introduces a function which can be used to fetch a file, given an > arbitrary task. As long as the user holds a reference (refcnt) to the > task_struct it is safe to call, and will either return NULL on failure, > or a pointer to the file, with a refcnt. > > This patch is based on Oleg Nesterov's (cf. [1]) patch from September > 2018. > > [1]: Link: https://lore.kernel.org/r/20180915160423.GA31461@xxxxxxxxxx > > Signed-off-by: Sargun Dhillon <sargun@xxxxxxxxx> > Suggested-by: Oleg Nesterov <oleg@xxxxxxxxxx> > Acked-by: Christian Brauner <christian.brauner@xxxxxxxxxx> Reviewed-by: Arnd Bergmann <arnd@xxxxxxxx>
