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author | Eric W. Biederman <ebiederm@xmission.com> | 2006-12-08 02:39:55 -0800 |
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committer | Linus Torvalds <torvalds@woody.osdl.org> | 2006-12-08 08:29:03 -0800 |
commit | cf9f151c7257683f489df85f94baf408d1d5694a (patch) | |
tree | 1b5db0f87d39bb7b83c86e0fb286a1f80f860922 /ipc/msg.c | |
parent | 6b1b60f41eef3ba7b188fd72f1d6de478aafd93c (diff) | |
download | op-kernel-dev-cf9f151c7257683f489df85f94baf408d1d5694a.zip op-kernel-dev-cf9f151c7257683f489df85f94baf408d1d5694a.tar.gz |
[PATCH] sysctl: simplify sysctl_uts_string
The binary interface to the namespace sysctls was never implemented resulting
in some really weird things if you attempted to use sys_sysctl to read your
hostname for example.
This patch series simples the code a little and implements the binary sysctl
interface.
In testing this patch series I discovered that our 32bit compatibility for the
binary sysctl interface is imperfect. In particular KERN_SHMMAX and
KERN_SMMALL are size_t sized quantities and are returned as 8 bytes on to
32bit binaries using a x86_64 kernel. However this has existing for a long
time so it is not a new regression with the namespace work.
Gads the whole sysctl thing needs work before it stops being easy to shoot
yourself in the foot.
Looking forward a little bit we need a better way to handle sysctls and
namespaces as our current technique will not work for the network namespace.
I think something based on the current overlapping sysctl trees will work but
the proc side needs to be redone before we can use it.
This patch:
Introduce get_uts() and put_uts() (used later) and remove most of the special
cases for when UTS namespace is compiled in.
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'ipc/msg.c')
0 files changed, 0 insertions, 0 deletions