https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=222639
Conrad Meyer <[email protected]> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |[email protected] --- Comment #2 from Conrad Meyer <[email protected]> --- (In reply to Marie Helene Kvello-Aune from comment #0) > Prequisite: Change how PIDs are tracked and allocated. Implement a bitmap of > PIDs > (I'm currently working on this) which is updated whenever anything in the PID > namespace changes (a new PID/session ID/etc is created, or a PID/session > ID/etc > is considered available again). > The bitmap should be an array of 4096 uint32_t where each bit represents a > PID. > A set (on) bit indicates an available PID. IIRC, there was some earlier effort to bitmap-ify PIDs. I'm not sure where that went. CC'ing Matt, who might remember if there is any work that can be reused (or if I am misremembering and the work got committed already). If not, we have some abstractions for bitmaps in the kernel already which should probably be used in place of a raw u32 array — see BITSET(9) (if fixed size is ok) or vmem(9) (which in spite of the name is actually a general purpose allocater of integers in some range). Apologies if you have already thought of this or discovered it since the 2017-09 description I responded to :-). -- You are receiving this mail because: You are the assignee for the bug. _______________________________________________ [email protected] mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-bugs To unsubscribe, send any mail to "[email protected]"
