On Sat, Mar 21, 2020 at 02:46:16AM +0000, Bernd Edlinger wrote: > This changes __pidfd_fget to use the new exec_update_mutex > instead of cred_guard_mutex. > > This should be safe, as the credentials do not change > before exec_update_mutex is locked. Therefore whatever > file access is possible with holding the cred_guard_mutex > here is also possbile with the exec_update_mutex. > > Signed-off-by: Bernd Edlinger <bernd.edlinger@xxxxxxxxxx> Reviewed-by: Christian Brauner <christian.brauner@xxxxxxxxxx>