1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2#ifndef _UAPI_LINUX_LIMITS_H
3#define _UAPI_LINUX_LIMITS_H
4
5#define NR_OPEN 1024
6
7#define NGROUPS_MAX 65536 /* supplemental group IDs are available */
8#define ARG_MAX 131072 /* # bytes of args + environ for exec() */
9#define LINK_MAX 127 /* # links a file may have */
10#define MAX_CANON 255 /* size of the canonical input queue */
11#define MAX_INPUT 255 /* size of the type-ahead buffer */
12#define NAME_MAX 255 /* # chars in a file name */
13#define PATH_MAX 4096 /* # chars in a path name including nul */
14#define PIPE_BUF 4096 /* # bytes in atomic write to a pipe */
15#define XATTR_NAME_MAX 255 /* # chars in an extended attribute name */
16#define XATTR_SIZE_MAX 65536 /* size of an extended attribute value (64k) */
17#define XATTR_LIST_MAX 65536 /* size of extended attribute namelist (64k) */
18
19#define RTSIG_MAX 32
20
21#endif
22