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Message-Id: <20070313084229.B31FA1801C5@magilla.sf.frob.com> Date: Tue, 13 Mar 2007 01:42:29 -0700 (PDT) From: Roland McGrath <roland@...hat.com> To: Linus Torvalds <torvalds@...ux-foundation.org>, Andrew Morton <akpm@...ux-foundation.org> Cc: linux-kernel@...r.kernel.org Subject: [PATCH] Remove CHILD_MAX The CHILD_MAX macro in limits.h should not be there. It claims to be the limit on processes a user can own, but its value is wrong for that. There is no constant value, but a variable resource limit (RLIMIT_NPROC). Nothing in the kernel uses CHILD_MAX. The proper thing to do according to POSIX is not to define CHILD_MAX at all. The sysconf (_SC_CHILD_MAX) implementation works by calling getrlimit. Signed-off-by: Roland McGrath <roland@...hat.com> --- include/linux/limits.h | 1 - 1 files changed, 0 insertions(+), 1 deletions(-) diff --git a/include/linux/limits.h b/include/linux/limits.h index c4b4e57..2d0f941 100644 --- a/include/linux/limits.h +++ b/include/linux/limits.h @@ -5,7 +5,6 @@ #define NGROUPS_MAX 65536 /* supplemental group IDs are available */ #define ARG_MAX 131072 /* # bytes of args + environ for exec() */ -#define CHILD_MAX 999 /* no limit :-) */ #define LINK_MAX 127 /* # links a file may have */ #define MAX_CANON 255 /* size of the canonical input queue */ #define MAX_INPUT 255 /* size of the type-ahead buffer */ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.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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