On Wed, 2005-11-16 at 18:19 +0530, Indraneel Mukherjee wrote: > On 11/16/05, Arjan van de Ven <arjan@xxxxxxxxxxxxx> wrote: > > On Wed, 2005-11-16 at 16:34 +0530, Indraneel Mukherjee wrote: > > > Hi All, > > > I've got a doubt regarding the call to call_usermodehelper. > > > Can i invoke it from a timer function? One of the recent thread's on > > > this mailing list suggest that we can call it from module_init(to get > > > a process context). But i read somewhere that the process context for > > > call_usermodehelper is obtained by creating a thread from the > > > kernel-event daemon. If that is the case, can i invoke > > > call_usermodehelper from a timer function? > > > > call_usermodehelper has to be called from process context. Timer > > functions aren't, so no you can't do that. > > What you can do is schedule an event and have that event call it > > instead. > > Not very clear about wat you mean by "schedule an event". Can you > write just a line or two giving some pointers in that direction (like > which kernel API's) ? schedule_work() and friends should be the right API -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
