> It is always a bad idea to read/write to a file in kernel mode ;) > Please search on knewbies or google for further information on it. over the years, there have been A LOT of objection to this notion. i agree that setting a kernel thread to read/write a file (or smth similar) is flawed, but there are other cases where i think it should be considered safe. for example, lets say a user process performs an ioctl on a device, and in the code path of the ioctl we can write smth to a file . although this kind of behavior breaks the syscall notion of communicating with the file system, there can be some advantages to it. as a general rule of thumb, i always program in user space if i can avoid adding code to the kernel. however, sometimes adding kernel code which does some _crazy_ stuff (like writing to files) is actually the only sane way. comments?? -- ======================================================================== nir. -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
