Messages in this thread Patch in this message | | | From | Daniel Jordan <> | Subject | [RFC PATCH v3 3/7] ktask: add /proc/sys/debug/ktask_max_threads | Date | Tue, 5 Dec 2017 14:52:16 -0500 |
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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 557d46728577..e296906e609e 100644 --- a/kernel/sysctl.c +++ b/kernel/sysctl.c @@ -67,6 +67,7 @@ #include <linux/bpf.h> #include <linux/mount.h> #include <linux/pipe_fs_i.h> +#include <linux/ktask_internal.h> #include <linux/uaccess.h> #include <asm/processor.h> @@ -1867,6 +1868,15 @@ static struct ctl_table debug_table[] = { .extra1 = &zero, .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 { } }; -- 2.15.0
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