On Sat, 2008-11-15 at 15:52 +0530, Manish Katiyar wrote: > Hi, > > I got a simple (probably silly question) while we were trying to hook > a system call few days back in one of the threads posted earlier. > Let's say I want to log all the users/calls of someone calling > kmem_cache_alloc() after the system has come up ie... any external > module which might be calling this during load. > > If I just add a printk to log it will record all the calls, not the > one which were made after the kernel came up and we logged into the > system (or userspace scripts loaded some module during booting). So > the basic question is how do i conditionalize this printk. From kernel > how can I know that my system is still booting or it has come up ?? Is > there any global variable for example which says kernel_state=BOOTING > or any other way which tells me in what phase of booting are we ? If > it were I could have easily done something like :- > > if (kernel_state >= BOOT_COMPLETE) > printk(...........); > > Makes sense ??? > > Thanks - > Manish > > -- > To unsubscribe from this list: send an email with > "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx > Please read the FAQ at http://kernelnewbies.org/FAQ Look at init/main.c init_post() system_state = SYSTEM_RUNNING; this is the last of the kernel initialization. --anup -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ
