From 77293034696e3e0b6c8b8fc1f96be091104b3d2b Mon Sep 17 00:00:00 2001 From: Roland McGrath <roland@redhat.com> Date: Tue, 17 Jul 2007 04:03:49 -0700 Subject: [PATCH] Remove OPEN_MAX The OPEN_MAX macro in limits.h should not be there. It claims to be the limit on file descriptors in a process, but its value is wrong for that. There is no constant value, but a variable resource limit (RLIMIT_NOFILE). Nothing in the kernel uses OPEN_MAX except things that are wrong to do so. I've submitted other patches to remove those uses. The proper thing to do according to POSIX is not to define OPEN_MAX at all. The sysconf (_SC_OPEN_MAX) implementation works by calling getrlimit. Signed-off-by: Roland McGrath <roland@redhat.com> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> --- include/linux/limits.h | 1 - 1 file changed, 1 deletion(-) diff --git a/include/linux/limits.h b/include/linux/limits.h index eaf2e099f125..c4b4e579c01d 100644 --- a/include/linux/limits.h +++ b/include/linux/limits.h @@ -6,7 +6,6 @@ #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 OPEN_MAX 256 /* # open files a process may have */ #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 */ -- GitLab