The functions parse_cbm() and parse_bw() require mode and CLOSID to
validate the Capacity Bit Mask (CBM). It is passed through struct
rdtgroup in rdt_parse_data. Instead of passing them through struct
rdtgroup, pass mode and closid directly.
This change enables parse_cbm() to be used for verifying CBM in io_alloc
feature.
Signed-off-by: Babu Moger <babu.moger@xxxxxxx>
---
v4: New patch to call parse_cbm() directly to avoid code duplication.
---
arch/x86/kernel/cpu/resctrl/ctrlmondata.c | 29 ++++++++++-------------
arch/x86/kernel/cpu/resctrl/internal.h | 6 +++++
2 files changed, 19 insertions(+), 16 deletions(-)
diff --git a/arch/x86/kernel/cpu/resctrl/ctrlmondata.c b/arch/x86/kernel/cpu/resctrl/ctrlmondata.c
index d1a59b56a456..e5d1e77e1995 100644
--- a/arch/x86/kernel/cpu/resctrl/ctrlmondata.c
+++ b/arch/x86/kernel/cpu/resctrl/ctrlmondata.c
@@ -23,11 +23,6 @@
#include "internal.h"
-struct rdt_parse_data {
- struct rdtgroup *rdtgrp;
- char *buf;
-};
-
typedef int (ctrlval_parser_t)(struct rdt_parse_data *data,
struct resctrl_schema *s,
struct rdt_ctrl_domain *d);
@@ -77,8 +72,8 @@ static int parse_bw(struct rdt_parse_data *data, struct resctrl_schema *s,
struct rdt_ctrl_domain *d)
{
struct resctrl_staged_config *cfg;
- u32 closid = data->rdtgrp->closid;
struct rdt_resource *r = s->res;
+ u32 closid = data->closid;
u32 bw_val;
cfg = &d->staged_config[s->conf_type];
@@ -156,9 +151,10 @@ static bool cbm_validate(char *buf, u32 *data, struct rdt_resource *r)
static int parse_cbm(struct rdt_parse_data *data, struct resctrl_schema *s,
struct rdt_ctrl_domain *d)
{
- struct rdtgroup *rdtgrp = data->rdtgrp;
+ enum rdtgrp_mode mode = data->mode;
struct resctrl_staged_config *cfg;
struct rdt_resource *r = s->res;
+ u32 closid = data->closid;
u32 cbm_val;
cfg = &d->staged_config[s->conf_type];
@@ -171,7 +167,7 @@ static int parse_cbm(struct rdt_parse_data *data, struct resctrl_schema *s,
* Cannot set up more than one pseudo-locked region in a cache
* hierarchy.
*/
- if (rdtgrp->mode == RDT_MODE_PSEUDO_LOCKSETUP &&
+ if (mode == RDT_MODE_PSEUDO_LOCKSETUP &&
rdtgroup_pseudo_locked_in_hierarchy(d)) {
rdt_last_cmd_puts("Pseudo-locked region in hierarchy\n");
return -EINVAL;
@@ -180,9 +176,9 @@ static int parse_cbm(struct rdt_parse_data *data, struct resctrl_schema *s,
if (!cbm_validate(data->buf, &cbm_val, r))
return -EINVAL;
- if ((rdtgrp->mode == RDT_MODE_EXCLUSIVE ||
- rdtgrp->mode == RDT_MODE_SHAREABLE) &&
- rdtgroup_cbm_overlaps_pseudo_locked(d, cbm_val)) {
+ if ((mode == RDT_MODE_EXCLUSIVE ||
+ mode == RDT_MODE_SHAREABLE) &&
+ rdtgroup_cbm_overlaps_pseudo_locked(d, cbm_val)) {
rdt_last_cmd_puts("CBM overlaps with pseudo-locked region\n");
return -EINVAL;
}
@@ -191,14 +187,14 @@ static int parse_cbm(struct rdt_parse_data *data, struct resctrl_schema *s,
* The CBM may not overlap with the CBM of another closid if
* either is exclusive.
*/
- if (rdtgroup_cbm_overlaps(s, d, cbm_val, rdtgrp->closid, true)) {
+ if (rdtgroup_cbm_overlaps(s, d, cbm_val, closid, true)) {
rdt_last_cmd_puts("Overlaps with exclusive group\n");
return -EINVAL;
}
- if (rdtgroup_cbm_overlaps(s, d, cbm_val, rdtgrp->closid, false)) {
- if (rdtgrp->mode == RDT_MODE_EXCLUSIVE ||
- rdtgrp->mode == RDT_MODE_PSEUDO_LOCKSETUP) {
+ if (rdtgroup_cbm_overlaps(s, d, cbm_val, closid, false)) {
+ if (mode == RDT_MODE_EXCLUSIVE ||
+ mode == RDT_MODE_PSEUDO_LOCKSETUP) {
rdt_last_cmd_puts("Overlaps with other group\n");
return -EINVAL;
}
@@ -262,7 +258,8 @@ static int parse_line(char *line, struct resctrl_schema *s,
list_for_each_entry(d, &r->ctrl_domains, hdr.list) {
if (d->hdr.id == dom_id) {
data.buf = dom;
- data.rdtgrp = rdtgrp;
+ data.closid = rdtgrp->closid;
+ data.mode = rdtgrp->mode;
if (parse_ctrlval(&data, s, d))
return -EINVAL;
if (rdtgrp->mode == RDT_MODE_PSEUDO_LOCKSETUP) {
diff --git a/arch/x86/kernel/cpu/resctrl/internal.h b/arch/x86/kernel/cpu/resctrl/internal.h
index 2ac78650500a..92246d2b91c8 100644
--- a/arch/x86/kernel/cpu/resctrl/internal.h
+++ b/arch/x86/kernel/cpu/resctrl/internal.h
@@ -241,6 +241,12 @@ struct rdtgroup {
struct pseudo_lock_region *plr;
};
+struct rdt_parse_data {
+ u32 closid;
+ enum rdtgrp_mode mode;
+ char *buf;
+};
+
/* rdtgroup.flags */
#define RDT_DELETED 1
--
2.34.1
