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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/linux/threads.h
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'include/linux/threads.h')
-rw-r--r--include/linux/threads.h36
1 files changed, 36 insertions, 0 deletions
diff --git a/include/linux/threads.h b/include/linux/threads.h
new file mode 100644
index 000000000000..b59738ac6197
--- /dev/null
+++ b/include/linux/threads.h
@@ -0,0 +1,36 @@
1#ifndef _LINUX_THREADS_H
2#define _LINUX_THREADS_H
3
4#include <linux/config.h>
5
6/*
7 * The default limit for the nr of threads is now in
8 * /proc/sys/kernel/threads-max.
9 */
10
11/*
12 * Maximum supported processors that can run under SMP. This value is
13 * set via configure setting. The maximum is equal to the size of the
14 * bitmasks used on that platform, i.e. 32 or 64. Setting this smaller
15 * saves quite a bit of memory.
16 */
17#ifdef CONFIG_SMP
18#define NR_CPUS CONFIG_NR_CPUS
19#else
20#define NR_CPUS 1
21#endif
22
23#define MIN_THREADS_LEFT_FOR_ROOT 4
24
25/*
26 * This controls the default maximum pid allocated to a process
27 */
28#define PID_MAX_DEFAULT (CONFIG_BASE_SMALL ? 0x1000 : 0x8000)
29
30/*
31 * A maximum of 4 million PIDs should be enough for a while:
32 */
33#define PID_MAX_LIMIT (CONFIG_BASE_SMALL ? PAGE_SIZE * 8 : \
34 (sizeof(long) > 4 ? 4 * 1024 * 1024 : PID_MAX_DEFAULT))
35
36#endif