Can anyone point me to any documentation on kernel_thread() ? I've asked this question before, but without much response. I found *some* notes about it here: http://www.brics.dk/~kasperd/comp.os.linux.development.faq.html But its not mentioned in O'Reilly's 'Linux Device Drivers' book. neither is it documented here: http://www.kernelnewbies.org/documents/kdoc/kernel-api/linuxkernelapi.html In particular I would like to know how to wait on a kernel thread to exit ? thanks dom > -----Original Message----- > From: Chris Wright [mailto:chris@wirex.com] > Sent: Monday, December 02, 2002 6:39 PM > To: Theodore Kim > Cc: kernelnewbies@nl.linux.org > Subject: Re: pthread in kernel modules? > > > * Theodore Kim (shkim7@web.dwe.co.kr) wrote: > > Hi all, > > ? > > I was?shocked to see the codelets in some handouts. > > ? > > int init_module() > > {?? pthread_create(abc, NULL, my_thread, NULL); } > > ? > > Could this ever be possible? > > No (unless kernel is patched to export a function with the above > prototype, which would be very odd). Nothing from c library or other > userspace libraries is available in kernel code. You'll find a few > niceties in the kernel source, for example in lib/string.c, that are > typically supplied by c library, but nothing like pthreads! > > > To the best of my knowledge, only macros and static inline > functions defined > > in *.h's and > > functions that are listed in 'ksyms -a' can be used in kernel module > > programming... > > Yes. From the point of view of the kernel source, if it isn't inline, > macro or exported via EXPORT_SYMBOL, it isn't available for > module code. > > > I used kernel_thread() several times but never ever though > of using pthread > > in kernel modules. > > kernel_thread would be the right thing if you want to create > a thread in > a module. > > -chris > -- > Linux Security Modules http://lsm.immunix.org http://lsm.bkbits.net -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/ -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
