Nadia Derbey wrote: > Andrew Morton wrote: > >> On Mon, 11 Feb 2008 15:16:53 +0100 >> Nadia.Derbey@bull.net wrote: >> >> >>> [PATCH 07/08] >>> >>> This patch makes msgmni not recomputed anymore upon ipc namespace >>> creation / >>> removal or memory add/remove, as soon as it has been set from userland. >>> >>> As soon as msgmni is explicitely set via procfs or sysctl(), the >>> associated >>> callback routine is unregistered from the ipc namespace notifier chain. >>> >> >> >> The patch series looks pretty good. >> >> >>> =================================================================== >>> --- linux-2.6.24-mm1.orig/ipc/ipc_sysctl.c 2008-02-08 >>> 16:07:15.000000000 +0100 >>> +++ linux-2.6.24-mm1/ipc/ipc_sysctl.c 2008-02-08 >>> 16:08:32.000000000 +0100 >>> @@ -35,6 +35,24 @@ static int proc_ipc_dointvec(ctl_table * >>> return proc_dointvec(&ipc_table, write, filp, buffer, lenp, ppos); >>> } >>> >>> +static int proc_ipc_callback_dointvec(ctl_table *table, int write, >>> + struct file *filp, void __user *buffer, size_t *lenp, loff_t *ppos) >>> +{ >>> + size_t lenp_bef = *lenp; >>> + int rc; >>> + >>> + rc = proc_ipc_dointvec(table, write, filp, buffer, lenp, ppos); >>> + >>> + if (write && !rc && lenp_bef == *lenp) >>> + /* >>> + * Tunable has successfully been changed from userland: >>> + * disable its automatic recomputing. >>> + */ >>> + unregister_ipcns_notifier(current->nsproxy->ipc_ns); >>> + >>> + return rc; >>> +} >> >> >> >> If you haven't done so, could you please check that it all builds cleanly >> with CONFIG_PROCFS=n, and that all code which isn't needed if procfs is >> disabled is not present in the final binary? >> >> >> >> > > Andrew, > > it builds fine, modulo some changes in ipv4 and ipv6 (see attached patch > - didn't find it in the hot fixes). > > Regards, > Nadia > > Oops, forgot the patch. Thx Benjamin!