Add the debug files to the resctrl hierarchy. Signed-off-by: Babu Moger <babu.moger@xxxxxxx> --- arch/x86/kernel/cpu/resctrl/rdtgroup.c | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) diff --git a/arch/x86/kernel/cpu/resctrl/rdtgroup.c b/arch/x86/kernel/cpu/resctrl/rdtgroup.c index c35d91b04de6..b7c72b011264 100644 --- a/arch/x86/kernel/cpu/resctrl/rdtgroup.c +++ b/arch/x86/kernel/cpu/resctrl/rdtgroup.c @@ -2398,6 +2398,31 @@ static int mkdir_mondata_all(struct kernfs_node *parent_kn, struct rdtgroup *prgrp, struct kernfs_node **mon_data_kn); +void resctrl_add_debug_file(struct kernfs_node *parent_kn, + const char *config, unsigned long fflags, + bool debug) +{ + struct rftype *rft; + + rft = rdtgroup_get_rftype_by_name(config); + if (debug && rft) { + rft->fflags |= fflags; + rdtgroup_add_file(parent_kn, rft); + } else if (rft) { + rft->fflags &= ~fflags; + kernfs_remove_by_name(parent_kn, config); + } +} + +static void resctrl_add_debug_files(bool debug) +{ + resctrl_add_debug_file(rdtgroup_default.kn, "rmid", + RFTYPE_BASE, debug); + resctrl_add_debug_file(rdtgroup_default.kn, "closid", + RFTYPE_BASE_CTRL, debug); + kernfs_activate(rdtgroup_default.kn); +} + static int rdt_enable_ctx(struct rdt_fs_context *ctx) { int ret = 0; @@ -2411,6 +2436,8 @@ static int rdt_enable_ctx(struct rdt_fs_context *ctx) if (!ret && ctx->enable_mba_mbps) ret = set_mba_sc(true); + resctrl_add_debug_files(ctx->debug); + return ret; }