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Subject[RFC PATCH v2 3/7] ktask: add /proc/sys/debug/ktask_max_threads
Date
Adds a proc file to control the maximum number of ktask threads in use
for any one job. Its primary use is to aid in debugging.

Signed-off-by: Daniel Jordan <daniel.m.jordan@oracle.com>
Reviewed-by: Steve Sistare <steven.sistare@oracle.com>
Cc: Aaron Lu <aaron.lu@intel.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Pavel Tatashin <pasha.tatashin@oracle.com>
Cc: Tim Chen <tim.c.chen@intel.com>
---
kernel/sysctl.c | 10 ++++++++++
1 file changed, 10 insertions(+)

diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index 6648fbbb8157..bc22c61b5d12 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -67,6 +67,7 @@
#include <linux/kexec.h>
#include <linux/bpf.h>
#include <linux/mount.h>
+#include <linux/ktask_internal.h>

#include <linux/uaccess.h>
#include <asm/processor.h>
@@ -1876,6 +1877,15 @@ static struct ctl_table debug_table[] = {
.extra2 = &one,
},
#endif
+#if defined(CONFIG_KTASK)
+ {
+ .procname = "ktask_max_threads",
+ .data = &ktask_max_threads,
+ .maxlen = sizeof(ktask_max_threads),
+ .mode = 0644,
+ .proc_handler = proc_dointvec,
+ },
+#endif
{ }
};

--
2.12.2
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