[PATCH v9 5/9] x86/resctrl: Relax checks for mba_MBps mount option

Tony Luck
2024-11-14T00:17:23Z

This option may be used with any memory bandwidth monitoring event.

Signed-off-by: Tony Luck <tony.luck@intel.com>
---
arch/x86/kernel/cpu/resctrl/rdtgroup.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/x86/kernel/cpu/resctrl/rdtgroup.c b/arch/x86/kernel/cpu/resctrl/rdtgroup.c
index a8022bddf9f7..3a89516e6f56 100644
--- a/arch/x86/kernel/cpu/resctrl/rdtgroup.c
+++ b/arch/x86/kernel/cpu/resctrl/rdtgroup.c
@@ -2334,7 +2334,7 @@ static bool supports_mba_mbps(void)
struct rdt_resource *rmbm = &rdt_resources_all[RDT_RESOURCE_L3].r_resctrl;
struct rdt_resource *r = &rdt_resources_all[RDT_RESOURCE_MBA].r_resctrl;

- return (is_mbm_local_enabled() &&
+ return (is_mbm_enabled() &&
r->alloc_capable && is_mba_linear() &&
r->ctrl_scope == rmbm->mon_scope);
}
@@ -2759,7 +2759,7 @@ static int rdt_parse_param(struct fs_context *fc, struct fs_parameter *param)
ctx->enable_cdpl2 = true;
return 0;
case Opt_mba_mbps:
- msg = "mba_MBps requires local MBM and linear scale MBA at L3 scope";
+ msg = "mba_MBps requires MBM and linear scale MBA at L3 scope";
if (!supports_mba_mbps())
return invalfc(fc, msg);
ctx->enable_mba_mbps = true;
--
2.47.0