mqueue: revert bump up DFLT_*MAX

Mqueue limitation is slightly naieve parameter likes other ipcs because
unprivileged user can consume kernel memory by using ipcs.

Thus, too aggressive raise bring us security issue.  Example, current
setting allow evil unprivileged user use 256GB (= 256 * 1024 * 1024*1024)
and it's enough large to system will belome unresponsive.  Don't do that.

Instead, every admin should adjust the knobs for their own systems.

Signed-off-by: KOSAKI Motohiro <[email protected]>
Acked-by: Doug Ledford <[email protected]>
Acked-by: Joe Korty <[email protected]>
Cc: Amerigo Wang <[email protected]>
Acked-by: Serge E. Hallyn <[email protected]>
Cc: Jiri Slaby <[email protected]>
Cc: Manfred Spraul <[email protected]>
Cc: Dave Hansen <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

0 files changed, 0 insertions, 0 deletions