On 12/07/2016 04:39 PM, Federico Reghenzani wrote: > Hello, > > I'm working on Real-Time applications in Linux. `mlockall()` is a > typical syscall used in RT processes in order to avoid page faults. > However, the use of this syscall is strongly limited by ulimits, so > basically all RT processes that want to call `mlockall()` have to be > executed with root privileges. Is it not possible to change the ulimits with e.g. prlimit? > What I would like to have is a syscall that accept a "pid", so a process > spawned by root would be able to enforce the memory locking to other > non-root processes. The prototypes would be: > > int mlockall(int flags, pid_t pid); > int munlockall(pid_t pid); > > I checked the source code and it seems to me quite easy to add this > syscall variant. > > I'm writing here to have a feedback before starting to edit the code. Do > you think that this is a good approach? > > > Thank you, > Federico > > -- > *Federico Reghenzani* > PhD Candidate > Politecnico di Milano > Dipartimento di Elettronica, Informazione e Bioingegneria > -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>