0,0 → 1,45 |
#ifndef _LINUX_THREADS_H |
#define _LINUX_THREADS_H |
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|
/* |
* The default limit for the nr of threads is now in |
* /proc/sys/kernel/threads-max. |
*/ |
|
/* |
* Maximum supported processors. Setting this smaller saves quite a |
* bit of memory. Use nr_cpu_ids instead of this except for static bitmaps. |
*/ |
#ifndef CONFIG_NR_CPUS |
/* FIXME: This should be fixed in the arch's Kconfig */ |
#define CONFIG_NR_CPUS 1 |
#endif |
|
/* Places which use this should consider cpumask_var_t. */ |
#define NR_CPUS CONFIG_NR_CPUS |
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#define MIN_THREADS_LEFT_FOR_ROOT 4 |
|
/* |
* This controls the default maximum pid allocated to a process |
*/ |
#define PID_MAX_DEFAULT (CONFIG_BASE_SMALL ? 0x1000 : 0x8000) |
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/* |
* A maximum of 4 million PIDs should be enough for a while. |
* [NOTE: PID/TIDs are limited to 2^29 ~= 500+ million, see futex.h.] |
*/ |
#define PID_MAX_LIMIT (CONFIG_BASE_SMALL ? PAGE_SIZE * 8 : \ |
(sizeof(long) > 4 ? 4 * 1024 * 1024 : PID_MAX_DEFAULT)) |
|
/* |
* Define a minimum number of pids per cpu. Heuristically based |
* on original pid max of 32k for 32 cpus. Also, increase the |
* minimum settable value for pid_max on the running system based |
* on similar defaults. See kernel/pid.c:pidmap_init() for details. |
*/ |
#define PIDS_PER_CPU_DEFAULT 1024 |
#define PIDS_PER_CPU_MIN 8 |
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#endif |