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authorJiri Kosina <jkosina@suse.cz>2010-06-16 18:08:13 +0200
committerJiri Kosina <jkosina@suse.cz>2010-06-16 18:08:13 +0200
commitf1bbbb6912662b9f6070c5bfc4ca9eb1f06a9d5b (patch)
treec2c130a74be25b0b2dff992e1a195e2728bdaadd /include/linux/threads.h
parentfd0961ff67727482bb20ca7e8ea97b83e9de2ddb (diff)
parent7e27d6e778cd87b6f2415515d7127eba53fe5d02 (diff)
Merge branch 'master' into for-next
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 052b12bec8b..383ab9592be 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