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SubjectRe: sysctl vs /proc/sys
Date
Followup to:  <20031213.094210.107050343.yoshfuji@linux-ipv6.org>
By author: YOSHIFUJI Hideaki / =?iso-2022-jp?B?GyRCNUhGIzFRTEAbKEI=?= <yoshfuji@linux-ipv6.org>
In newsgroup: linux.dev.kernel
>
> Yes, I meant to read old value and to set new one in one system call.
> The sysctl system-call does lock_kernel, so sysctl(2) sytem-call
> are serialized.
>

Dumb question... what do you need this for? sysctl is mostly used to
initialization-time stuff... In most cases you can use flock(),
probably, although that is advisory and not compulsory.

-hpa
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