On Fri, Jan 03, 2020 at 08:29:26AM -0800, Sargun Dhillon 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> Nit: the patch is titled "vfs, fdtable: Add get_task_file helper" but the actual helper is called fget_task()
