The patch titled
Remove OPEN_MAX
has been added to the -mm tree. Its filename is
remove-open_max.patch
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: Remove OPEN_MAX
From: Roland McGrath <roland@xxxxxxxxxx>
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@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/limits.h | 1 -
1 files changed, 1 deletion(-)
diff -puN include/linux/limits.h~remove-open_max include/linux/limits.h
--- a/include/linux/limits.h~remove-open_max
+++ a/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 */
_
Patches currently in -mm which might be from roland@xxxxxxxxxx are
powerpc-vdso-install-unstripped-copies-on-disk.patch
pass-g-to-assembler-under-config_debug_info.patch
avoid-open_max-in-scm_max_fd.patch
x86-use-elfnoteh-to-generate-vsyscall-notes-fix.patch
make-alt-sysrq-p-display-the-debug-register-contents.patch
i386-vdso-install-unstripped-copies-on-disk.patch
x86_64-ia32-vdso-install-unstripped-copies-on-disk.patch
clone-flag-clone_parent_tidptr-leaves-invalid-results-in-memory.patch
pie-randomization.patch
remove-open_max.patch
i386-put-allocated-elf-notes-in-read-only-data-segment.patch
x86_64-put-allocated-elf-notes-in-read-only-data-segment.patch
alpha-put-allocated-elf-notes-in-read-only-data-segment.patch
powerpc-put-allocated-elf-notes-in-read-only-data-segment.patch
s390-put-allocated-elf-notes-in-read-only-data-segment.patch
add-sys-kernel-notes.patch
use-build-id-ld-option.patch
-
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