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-rw-r--r--init/Kconfig10
-rw-r--r--init/main.c2
2 files changed, 12 insertions, 0 deletions
diff --git a/init/Kconfig b/init/Kconfig
index a5b073a103e..90498a3e53d 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -158,6 +158,16 @@ config BSD_PROCESS_ACCT_V3
for processing it. A preliminary version of these tools is available
at <http://www.physik3.uni-rostock.de/tim/kernel/utils/acct/>.
+config TASK_DELAY_ACCT
+ bool "Enable per-task delay accounting (EXPERIMENTAL)"
+ help
+ Collect information on time spent by a task waiting for system
+ resources like cpu, synchronous block I/O completion and swapping
+ in pages. Such statistics can help in setting a task's priorities
+ relative to other tasks for cpu, io, rss limits etc.
+
+ Say N if unsure.
+
config SYSCTL
bool "Sysctl support" if EMBEDDED
default y
diff --git a/init/main.c b/init/main.c
index 628b8e9e841..9e8e8c15214 100644
--- a/init/main.c
+++ b/init/main.c
@@ -41,6 +41,7 @@
#include <linux/cpu.h>
#include <linux/cpuset.h>
#include <linux/efi.h>
+#include <linux/delayacct.h>
#include <linux/unistd.h>
#include <linux/rmap.h>
#include <linux/mempolicy.h>
@@ -574,6 +575,7 @@ asmlinkage void __init start_kernel(void)
proc_root_init();
#endif
cpuset_init();
+ delayacct_init();
check_bugs();