Hi All, I need to do some calculation of file contents inside LSM hook.
This LSM hook is in a process context, so I hope I can do I/O. ( I put might_sleep() inside hook to confirm I can sleep) I use kernel_read() to read file in chunks of 4K size. On several files, like libc, libm, I got -EINTR error. I tried to insert mdelay() or yield() before repeating kernel_read but still on every read attempt I got -EINTR. According to timestamp of printk, mdelay or yield() do not have any affect, next read happens 2-3 nsecs later. This error happens on libc, libm, ld-linux on 4.4 and 4.13 kernels. It did not happen on other libraries. What might be the solution for this problem ? ThnX, Lev _______________________________________________ Linux-il mailing list Linux-il@cs.huji.ac.il http://mailman.cs.huji.ac.il/mailman/listinfo/linux-il
