[PATCH] Remove CHILD_MAX

From: Roland McGrath
Date: Tue Mar 13 2007 - 04:43:23 EST


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@xxxxxxxxxx>
---
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 */
-
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