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Thanks On 11/13/2024 6:17 PM, Tony Luck wrote: > From: Babu Moger > > thread_throttle_mode_init() and mbm_config_rftype_init() both initialize > fflags for resctrl files. > > Adding new files will involve adding another function to initialize > the fflags. This can be simplified by adding a new function > resctrl_file_fflags_init() and passing the file name and flags > to be initialized. > > Consolidate fflags initialization into resctrl_file_fflags_init() and > remove thread_throttle_mode_init() and mbm_config_rftype_init(). > > Signed-off-by: Babu Moger > Reviewed-by: Reinette Chatre > Signed-off-by: Tony Luck > --- > arch/x86/kernel/cpu/resctrl/internal.h | 3 +-- > arch/x86/kernel/cpu/resctrl/core.c | 4 +++- > arch/x86/kernel/cpu/resctrl/monitor.c | 6 ++++-- > arch/x86/kernel/cpu/resctrl/rdtgroup.c | 15 ++------------- > 4 files changed, 10 insertions(+), 18 deletions(-) > > diff --git a/arch/x86/kernel/cpu/resctrl/internal.h b/arch/x86/kernel/cpu/resctrl/internal.h > index 955999aecfca..faaff9d64102 100644 > --- a/arch/x86/kernel/cpu/resctrl/internal.h > +++ b/arch/x86/kernel/cpu/resctrl/internal.h > @@ -647,8 +647,7 @@ void cqm_handle_limbo(struct work_struct *work); > bool has_busy_rmid(struct rdt_mon_domain *d); > void __check_limbo(struct rdt_mon_domain *d, bool force_free); > void rdt_domain_reconfigure_cdp(struct rdt_resource *r); > -void __init thread_throttle_mode_init(void); > -void __init mbm_config_rftype_init(const char *config); > +void resctrl_file_fflags_init(const char *config, unsigned long fflags); > void rdt_staged_configs_clear(void); > bool closid_allocated(unsigned int closid); > int resctrl_find_cleanest_closid(void); > diff --git a/arch/x86/kernel/cpu/resctrl/core.c b/arch/x86/kernel/cpu/resctrl/core.c > index b681c2e07dbf..f3ee5859b69d 100644 > --- a/arch/x86/kernel/cpu/resctrl/core.c > +++ b/arch/x86/kernel/cpu/resctrl/core.c > @@ -234,7 +234,9 @@ static __init bool __get_mem_config_intel(struct rdt_resource *r) > r->membw.throttle_mode = THREAD_THROTTLE_PER_THREAD; > else > r->membw.throttle_mode = THREAD_THROTTLE_MAX; > - thread_throttle_mode_init(); > + > + resctrl_file_fflags_init("thread_throttle_mode", > + RFTYPE_CTRL_INFO | RFTYPE_RES_MB); > > r->alloc_capable = true; > > diff --git a/arch/x86/kernel/cpu/resctrl/monitor.c b/arch/x86/kernel/cpu/resctrl/monitor.c > index 851b561850e0..7ef1a293cc13 100644 > --- a/arch/x86/kernel/cpu/resctrl/monitor.c > +++ b/arch/x86/kernel/cpu/resctrl/monitor.c > @@ -1223,11 +1223,13 @@ int __init rdt_get_mon_l3_config(struct rdt_resource *r) > > if (rdt_cpu_has(X86_FEATURE_CQM_MBM_TOTAL)) { > mbm_total_event.configurable = true; > - mbm_config_rftype_init("mbm_total_bytes_config"); > + resctrl_file_fflags_init("mbm_total_bytes_config", > + RFTYPE_MON_INFO | RFTYPE_RES_CACHE); > } > if (rdt_cpu_has(X86_FEATURE_CQM_MBM_LOCAL)) { > mbm_local_event.configurable = true; > - mbm_config_rftype_init("mbm_local_bytes_config"); > + resctrl_file_fflags_init("mbm_local_bytes_config", > + RFTYPE_MON_INFO | RFTYPE_RES_CACHE); > } > } > > diff --git a/arch/x86/kernel/cpu/resctrl/rdtgroup.c b/arch/x86/kernel/cpu/resctrl/rdtgroup.c > index d7163b764c62..2b198ef95e1e 100644 > --- a/arch/x86/kernel/cpu/resctrl/rdtgroup.c > +++ b/arch/x86/kernel/cpu/resctrl/rdtgroup.c > @@ -2020,24 +2020,13 @@ static struct rftype *rdtgroup_get_rftype_by_name(const char *name) > return NULL; > } > > -void __init thread_throttle_mode_init(void) > -{ > - struct rftype *rft; > - > - rft = rdtgroup_get_rftype_by_name("thread_throttle_mode"); > - if (!rft) > - return; > - > - rft->fflags = RFTYPE_CTRL_INFO | RFTYPE_RES_MB; > -} > - > -void __init mbm_config_rftype_init(const char *config) > +void resctrl_file_fflags_init(const char *config, unsigned long fflags) > { > struct rftype *rft; > > rft = rdtgroup_get_rftype_by_name(config); > if (rft) > - rft->fflags = RFTYPE_MON_INFO | RFTYPE_RES_CACHE; > + rft->fflags = fflags; > } > > /** -- - Babu Moger