1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2*4882a593Smuzhiyun #ifndef _UAPI_LINUX_LIMITS_H 3*4882a593Smuzhiyun #define _UAPI_LINUX_LIMITS_H 4*4882a593Smuzhiyun 5*4882a593Smuzhiyun #define NR_OPEN 1024 6*4882a593Smuzhiyun 7*4882a593Smuzhiyun #define NGROUPS_MAX 65536 /* supplemental group IDs are available */ 8*4882a593Smuzhiyun #define ARG_MAX 131072 /* # bytes of args + environ for exec() */ 9*4882a593Smuzhiyun #define LINK_MAX 127 /* # links a file may have */ 10*4882a593Smuzhiyun #define MAX_CANON 255 /* size of the canonical input queue */ 11*4882a593Smuzhiyun #define MAX_INPUT 255 /* size of the type-ahead buffer */ 12*4882a593Smuzhiyun #define NAME_MAX 255 /* # chars in a file name */ 13*4882a593Smuzhiyun #define PATH_MAX 4096 /* # chars in a path name including nul */ 14*4882a593Smuzhiyun #define PIPE_BUF 4096 /* # bytes in atomic write to a pipe */ 15*4882a593Smuzhiyun #define XATTR_NAME_MAX 255 /* # chars in an extended attribute name */ 16*4882a593Smuzhiyun #define XATTR_SIZE_MAX 65536 /* size of an extended attribute value (64k) */ 17*4882a593Smuzhiyun #define XATTR_LIST_MAX 65536 /* size of extended attribute namelist (64k) */ 18*4882a593Smuzhiyun 19*4882a593Smuzhiyun #define RTSIG_MAX 32 20*4882a593Smuzhiyun 21*4882a593Smuzhiyun #endif 22