On Mon, Dec 1, 2014 at 10:25 AM, Kirill A. Shutemov <kir...@shutemov.name> wrote: > > No idea about oom_score, but kernel happily accepts chmod on any file > under /proc/PID/net/.
/proc used to accept that fairly widely, but no, we tightened things down, and core /proc files end up not accepting chmod. See 'proc_setattr()': if (attr->ia_valid & ATTR_MODE) return -EPERM; although particular /proc files could choose to not use 'proc_setattr' if they want to. The '/proc/pid/net' subtree is obviously not doing that. No idea why, and probably for no good reason. Linus -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/