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authorRoland McGrath <roland@redhat.com>2007-07-17 04:03:49 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-07-17 10:23:03 -0700
commit77293034696e3e0b6c8b8fc1f96be091104b3d2b (patch)
tree17eeff1041240f99f1a37f5b57bf59d72d0a50a1 /include/linux/limits.h
parentc09edd6eba683741bb8aa8e388a2bfaf1c1a28f9 (diff)
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>
Diffstat (limited to 'include/linux/limits.h')
-rw-r--r--include/linux/limits.h1
1 files changed, 0 insertions, 1 deletions
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 */