On Tue, Sep 8, 2020 at 3:53 PM Xiaoming Ni <nixiaoming@xxxxxxxxxx> wrote: > > On 2020/9/8 18:06, Amir Goldstein wrote: > > On Tue, Sep 8, 2020 at 11:02 AM Xiaoming Ni <nixiaoming@xxxxxxxxxx> wrote: > >> > >> The file opening action on the system may be from user-mode sys_open() > >> or kernel-mode filp_open(). > >> Currently, fsnotify_open() is invoked in do_sys_openat2(). > >> But filp_open() is not notified. Why? Is this an omission? > >> > >> Do we need to call fsnotify_open() in filp_open() or do_filp_open() to > >> ensure that both user-mode and kernel-mode file opening operations can > >> be notified? > >> > > > > Do you have a specific use case of kernel filp_open() in mind? > > > > For example, in fs/coredump.c, do_coredump() calls filp_open() to > generate core files. > In this scenario, the fsnotify_open() notification is missing. > I am not convinced that we should generate an event. You will have to explain in what is the real world use case that requires this event to be generated. Thanks, Amir.
