1 #ifndef _LINUX_THREADS_H
2 #define _LINUX_THREADS_H
6 * The default limit for the nr of threads is now in
7 * /proc/sys/kernel/threads-max.
11 * Maximum supported processors that can run under SMP. This value is
12 * set via configure setting. The maximum is equal to the size of the
13 * bitmasks used on that platform, i.e. 32 or 64. Setting this smaller
14 * saves quite a bit of memory.
17 #define NR_CPUS CONFIG_NR_CPUS
22 #define MIN_THREADS_LEFT_FOR_ROOT 4
25 * This controls the default maximum pid allocated to a process
27 #define PID_MAX_DEFAULT (CONFIG_BASE_SMALL ? 0x1000 : 0x8000)
30 * A maximum of 4 million PIDs should be enough for a while.
31 * [NOTE: PID/TIDs are limited to 2^29 ~= 500+ million, see futex.h.]
33 #define PID_MAX_LIMIT (CONFIG_BASE_SMALL ? PAGE_SIZE * 8 : \
34 (sizeof(long) > 4 ? 4 * 1024 * 1024 : PID_MAX_DEFAULT))
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