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Remove CHILD_MAX

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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@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Roland McGrath 2007-07-17 04:03:49 -07:00 committed by Linus Torvalds
parent 7729303469
commit f9e86f4190
1 changed files with 0 additions and 1 deletions
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include/linux/limits.h
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@ -5,7 +5,6 @@
#define NGROUPS_MAX 65536 /* supplemental group IDs are available */ #define NGROUPS_MAX 65536 /* supplemental group IDs are available */
#define ARG_MAX 131072 /* # bytes of args + environ for exec() */ #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 LINK_MAX 127 /* # links a file may have */
#define MAX_CANON 255 /* size of the canonical input queue */ #define MAX_CANON 255 /* size of the canonical input queue */
#define MAX_INPUT 255 /* size of the type-ahead buffer */ #define MAX_INPUT 255 /* size of the type-ahead buffer */