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authorMark Brown <broonie@opensource.wolfsonmicro.com>2010-05-31 11:07:15 +0100
committerMark Brown <broonie@opensource.wolfsonmicro.com>2010-05-31 11:07:15 +0100
commite37c83c06c2690157a989df40dc99a6b61c9ea15 (patch)
tree024dfb8b2c9abeec9ca7cb0c0136c276d9aacc91 /include/linux/threads.h
parentce1f7d30766f6549db6fa0b9e595e0d26a5b7d9a (diff)
parent67a3e12b05e055c0415c556a315a3d3eb637e29e (diff)
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Merge commit 'v2.6.35-rc1' into for-2.6.36
Diffstat (limited to 'include/linux/threads.h')
-rw-r--r--include/linux/threads.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/include/linux/threads.h b/include/linux/threads.h
index 052b12bec8bd..383ab9592bec 100644
--- a/include/linux/threads.h
+++ b/include/linux/threads.h
@@ -33,4 +33,13 @@
#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
+
#endif
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