diff options
| author | Joel Granados <joel.granados@kernel.org> | 2025-04-30 14:07:33 +0200 |
|---|---|---|
| committer | Joel Granados <joel.granados@kernel.org> | 2025-07-23 11:52:47 +0200 |
| commit | fff6703fc843569d7a2f78ca08e7a69a9be22b0f (patch) | |
| tree | 0488089fb47f0eb9115ff99383bf3d81c6fde3b9 /kernel/rcu | |
| parent | f1b4f23a52c272f6c1e205e8ec243f563323c5aa (diff) | |
rcu: Move rcu_stall related sysctls into rcu/tree_stall.h
Move sysctl_panic_on_rcu_stall and sysctl_max_rcu_stall_to_panic into
the kernel/rcu subdirectory. Make these static in tree_stall.h and
removed them as extern from panic.h as their scope is now confined into
one file.
This is part of a greater effort to move ctl tables into their
respective subsystems which will reduce the merge conflicts in
kernel/sysctl.c.
Reviewed-by: Luis Chamberlain <mcgrof@kernel.org>
Reviewed-by: Joel Fernandes <joelagnelf@nvidia.com>
Reviewed-by: Kees Cook <kees@kernel.org>
Signed-off-by: Joel Granados <joel.granados@kernel.org>
Diffstat (limited to 'kernel/rcu')
| -rw-r--r-- | kernel/rcu/tree_stall.h | 33 |
1 files changed, 31 insertions, 2 deletions
diff --git a/kernel/rcu/tree_stall.h b/kernel/rcu/tree_stall.h index 486c00536207..69482c2f0771 100644 --- a/kernel/rcu/tree_stall.h +++ b/kernel/rcu/tree_stall.h @@ -17,8 +17,37 @@ // Controlling CPU stall warnings, including delay calculation. /* panic() on RCU Stall sysctl. */ -int sysctl_panic_on_rcu_stall __read_mostly; -int sysctl_max_rcu_stall_to_panic __read_mostly; +static int sysctl_panic_on_rcu_stall __read_mostly; +static int sysctl_max_rcu_stall_to_panic __read_mostly; + +static const struct ctl_table rcu_stall_sysctl_table[] = { + { + .procname = "panic_on_rcu_stall", + .data = &sysctl_panic_on_rcu_stall, + .maxlen = sizeof(sysctl_panic_on_rcu_stall), + .mode = 0644, + .proc_handler = proc_dointvec_minmax, + .extra1 = SYSCTL_ZERO, + .extra2 = SYSCTL_ONE, + }, + { + .procname = "max_rcu_stall_to_panic", + .data = &sysctl_max_rcu_stall_to_panic, + .maxlen = sizeof(sysctl_max_rcu_stall_to_panic), + .mode = 0644, + .proc_handler = proc_dointvec_minmax, + .extra1 = SYSCTL_ONE, + .extra2 = SYSCTL_INT_MAX, + }, +}; + +static int __init init_rcu_stall_sysctl(void) +{ + register_sysctl_init("kernel", rcu_stall_sysctl_table); + return 0; +} + +subsys_initcall(init_rcu_stall_sysctl); #ifdef CONFIG_SYSFS |