The BPF verifier has, in the course of wrestling with the difficult problem of statically analyzing loops, grown special support for many kinds of loops over its history, but its fundamental approach to simple for loops has not changed. When it ...
In a filesystem-track session at the 2026 Linux Storage, Filesystem, Memory Management, and BPF Summit, Amir Goldstein updated attendees on the fanotify filesystem-event monitoring subsystem. He wanted to describe changes that had come in the last ...
Since the earliest days of Unix, two of the core process-oriented system calls have been fork(), which creates a child process as a copy of the parent, and exec(), which runs a new program in the place of the current one. In Linux kernels, those ...