On Thu, 21 Apr 2005 Tony.Asleson@xxxxxxxxxxxxxxxx wrote: > How do you delete a file while in the kernel? > > I can find numerous examples of how to open/create/close a file within > the kernel like http://uqconnect.net/~zzoklan/lkd/using_files.html , but > I have been unable to find a resource on how to delete a file. I would > really > like a filp_unlink to go along with the filp_open, filp_close etc. > > I know doing any of these things is discouraged, but please don't respond > with don't do it :-) > > Thanks! > Tony Hi, i don't know very much about this, but i have recently developed a kernel module that opens, reads, writes, closes files and i didn't use kernel structures; i used system calls, and i think that might be the answer to your question. what i did was this: i created a kernel thread so that i could work with the process' file descriptor; i called set_fs (KERNEL_DS) - this way i could get the system call (read, write, open, lseek, close) parameters from kernel space; after that everything is like in user space: fd = open (filename, O_RDWR); and so on; unlink should work the same way, i guess (not sure though - so don't hate if it doesn't ;-) ) i don't know if this is of any help (i mean you have to have a kernel thread), but you might give it a shot. happy hacking, Razvan -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
