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 <[email protected]> Reviewed-by: Steve Sistare <[email protected]> Cc: Aaron Lu <[email protected]> Cc: Andrew Morton <[email protected]> Cc: Dave Hansen <[email protected]> Cc: Mel Gorman <[email protected]> Cc: Michal Hocko <[email protected]> Cc: Mike Kravetz <[email protected]> Cc: Pavel Tatashin <[email protected]> Cc: Tim Chen <[email protected]> --- 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
