Google luky.org euqset.org

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [PATCH] cputime_t patches broke RLIMIT_CPU



On Wed, 19 Jan 2005, Roland McGrath wrote:
>
> The RLIMIT_CPU limit is in seconds, not in jiffies.

This patch would seem to have its own problems, though. See:

	#define secs_to_cputime(__secs)           (msecs_to_jiffies(__secs * HZ))

which means that since there is no overflow checking (not in the current 
tree, and not in the fixed one that uses proper parenthesis and *1000, you 
can easily end up overflowing in the *1000 case, and causing nasty things.

So would it not be nicer to just keep everything in seconds instead? 
Alternatively, seriously fix "secs_to_cputime()" to do the proper thing?
Or did I miss a patch and you already did that?

		Linus
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/


$B$3$N>pJs$,$"$J$?$NC5$7$F$$?$b$N$+$I$&$+A*Br$7$F$/$@$5$!#(B
yes/$B$^$5$K$3$l$@!*(B   no/$B0c$&$J$!(B   part/$B0lIt8+$D$+$C$?(B   try/$B$3$l$G;n$7$F$_$k(B

$B$"$J$?$,C5$7$F$$?>pJs$O$I$N$h$&$J$3$H$+!"$4<+M3$K5-F~2<$5$!#FC$K!V$^$5$K$3$l$@!*!W$H8@$&>l9g$O5-F~$r$*4j$$7$^$9!#(B
$BNc(B:$B!VJ#?t$N%^%7%s$+$i(BCATV$B7PM3$G(Bipmasquerade$B$rMxMQ$7$F(BWeb$B$r;2>H$7$?$>l9g$N@_Dj$K$D$$F!W(B
Follow-Ups: References: