Messages in this thread |  | | | From | Alistair John Strachan <> | | Subject | Re: [PATCH] sysctl: Undeprecate sys_sysctl | | Date | Fri, 10 Nov 2006 08:50:50 +0000 |
On Friday 10 November 2006 05:21, Eric W. Biederman wrote: > Alistair John Strachan <s0348365@sms.ed.ac.uk> writes: > > On Wednesday 08 November 2006 19:00, you wrote: > >> The basic issue is that despite have been deprecated and warned about > >> as a very bad thing in the man pages since its inception there are a > >> few real users of sys_sysctl. It was my assumption that because > >> sysctl had been deprecated for all of 2.6 there would be no user space > >> users by this point, so I initially gave sys_sysctl a very short > >> deprecation period. > >> > >> Now that I know there are a few real users the only sane way to > >> proceed with deprecation is to push the time limit out to a year or > >> two work and work with distributions that have big testing pools like > >> fedora core to find these last remaining users. > > > > Eric, do you have a list of the remaining users? It'd be good to know for > > people using Linux in an embedded environment, where they may want to > > switch off the option, but only if it doesn't break their userspace. > > They are very very few. The ones I recall are kudzu, radvd, and > libpthreads (which doesn't care).
Neither do new versions of radvd, from what I can see.
radvd.c/check_ip6_forwarding():
#ifdef __linux__ fp = fopen(PROC_SYS_IP6_FORWARDING, "r"); if (fp) { fscanf(fp, "%d", &value); fclose(fp); } else flog(LOG_DEBUG, "Correct IPv6 forwarding procfs entry not found, " "perhaps the procfs is disabled, " "or the kernel interface has changed?"); #endif /* __linux__ */ if (!fp && sysctl(forw_sysctl, sizeof(forw_sysctl)/sizeof(forw_sysctl[0]), &value, &size, NULL, 0) < 0) { flog(LOG_DEBUG, "Correct IPv6 forwarding sysctl branch not found, " "perhaps the kernel interface has changed?"); return(0); /* this is of advisory value only */ } Maybe you should just hold out until everybody fixes their programs ;-)
-- Cheers, Alistair.
Final year Computer Science undergraduate. 1F2 55 South Clerk Street, Edinburgh, UK. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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