[PATCH 4.20 062/352] x86/resctrl: Fixup the user-visible strings

From: Greg Kroah-Hartman
Date: Mon Feb 11 2019 - 09:23:39 EST

4.20-stable review patch. If anyone has any objections, please let me know.

------------------

[ Upstream commit 723f1a0dd8e26a7523ba068204bee11c95ded38d ]

Fix the messages in rdt_last_cmd_printf() and rdt_last_cmd_puts() to
make them more meaningful and consistent.

[ bp: s/cpu/CPU/; s/mem\W/memory ]

Signed-off-by: Babu Moger <babu.moger@xxxxxxx>
Signed-off-by: Borislav Petkov <bp@xxxxxxx>
Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Cc: Andy Lutomirski <luto@xxxxxxxxxx>
Cc: Arnd Bergmann <arnd@xxxxxxxx>
Cc: Brijesh Singh <brijesh.singh@xxxxxxx>
Cc: "Chang S. Bae" <chang.seok.bae@xxxxxxxxx>
Cc: David Miller <davem@xxxxxxxxxxxxx>
Cc: David Woodhouse <dwmw2@xxxxxxxxxxxxx>
Cc: Dmitry Safonov <dima@xxxxxxxxxx>
Cc: Fenghua Yu <fenghua.yu@xxxxxxxxx>
Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Cc: "H. Peter Anvin" <hpa@xxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: Jann Horn <jannh@xxxxxxxxxx>
Cc: Joerg Roedel <jroedel@xxxxxxx>
Cc: Jonathan Corbet <corbet@xxxxxxx>
Cc: Josh Poimboeuf <jpoimboe@xxxxxxxxxx>
Cc: Kate Stewart <kstewart@xxxxxxxxxxxxxxxxxxx>
Cc: "Kirill A. Shutemov" <kirill.shutemov@xxxxxxxxxxxxxxx>
Cc: <linux-doc@xxxxxxxxxxxxxxx>
Cc: Mauro Carvalho Chehab <mchehab+samsung@xxxxxxxxxx>
Cc: Paolo Bonzini <pbonzini@xxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Philippe Ombredanne <pombredanne@xxxxxxxx>
Cc: Pu Wen <puwen@xxxxxxxx>
Cc: <qianyue.zj@xxxxxxxxxxxxxxx>
Cc: "Rafael J. Wysocki" <rafael@xxxxxxxxxx>
Cc: Reinette Chatre <reinette.chatre@xxxxxxxxx>
Cc: Rian Hunter <rian@xxxxxxxxxxxx>
Cc: Sherry Hurwitz <sherry.hurwitz@xxxxxxx>
Cc: Suravee Suthikulpanit <suravee.suthikulpanit@xxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Thomas Lendacky <Thomas.Lendacky@xxxxxxx>
Cc: Tony Luck <tony.luck@xxxxxxxxx>
Cc: Vitaly Kuznetsov <vkuznets@xxxxxxxxxx>
Cc: <xiaochen.shen@xxxxxxxxx>
Link: https://lkml.kernel.org/r/20181121202811.4492-11-babu.moger@xxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
arch/x86/kernel/cpu/intel_rdt_ctrlmondata.c | 22 ++++++-------
arch/x86/kernel/cpu/intel_rdt_pseudo_lock.c | 34 +++++++++----------
arch/x86/kernel/cpu/intel_rdt_rdtgroup.c | 36 ++++++++++-----------
3 files changed, 46 insertions(+), 46 deletions(-)

diff --git a/arch/x86/kernel/cpu/intel_rdt_ctrlmondata.c b/arch/x86/kernel/cpu/intel_rdt_ctrlmondata.c
index c8b72aff55e0..6e76ada71211 100644
--- a/arch/x86/kernel/cpu/intel_rdt_ctrlmondata.c
+++ b/arch/x86/kernel/cpu/intel_rdt_ctrlmondata.c
@@ -71,7 +71,7 @@ int parse_bw(struct rdt_parse_data *data, struct rdt_resource *r,
unsigned long bw_val;

if (d->have_new_ctrl) {
- rdt_last_cmd_printf("duplicate domain %d\n", d->id);
+ rdt_last_cmd_printf("Duplicate domain %d\n", d->id);
return -EINVAL;
}

@@ -97,12 +97,12 @@ static bool cbm_validate(char *buf, u32 *data, struct rdt_resource *r)

ret = kstrtoul(buf, 16, &val);
if (ret) {
- rdt_last_cmd_printf("non-hex character in mask %s\n", buf);
+ rdt_last_cmd_printf("Non-hex character in the mask %s\n", buf);
return false;
}

if (val == 0 || val > r->default_ctrl) {
- rdt_last_cmd_puts("mask out of range\n");
+ rdt_last_cmd_puts("Mask out of range\n");
return false;
}

@@ -110,12 +110,12 @@ static bool cbm_validate(char *buf, u32 *data, struct rdt_resource *r)
zero_bit = find_next_zero_bit(&val, cbm_len, first_bit);

if (find_next_bit(&val, cbm_len, zero_bit) < cbm_len) {
- rdt_last_cmd_printf("mask %lx has non-consecutive 1-bits\n", val);
+ rdt_last_cmd_printf("The mask %lx has non-consecutive 1-bits\n", val);
return false;
}

if ((zero_bit - first_bit) < r->cache.min_cbm_bits) {
- rdt_last_cmd_printf("Need at least %d bits in mask\n",
+ rdt_last_cmd_printf("Need at least %d bits in the mask\n",
r->cache.min_cbm_bits);
return false;
}
@@ -135,7 +135,7 @@ int parse_cbm(struct rdt_parse_data *data, struct rdt_resource *r,
u32 cbm_val;

if (d->have_new_ctrl) {
- rdt_last_cmd_printf("duplicate domain %d\n", d->id);
+ rdt_last_cmd_printf("Duplicate domain %d\n", d->id);
return -EINVAL;
}

@@ -145,7 +145,7 @@ int parse_cbm(struct rdt_parse_data *data, struct rdt_resource *r,
*/
if (rdtgrp->mode == RDT_MODE_PSEUDO_LOCKSETUP &&
rdtgroup_pseudo_locked_in_hierarchy(d)) {
- rdt_last_cmd_printf("pseudo-locked region in hierarchy\n");
+ rdt_last_cmd_printf("Pseudo-locked region in hierarchy\n");
return -EINVAL;
}

@@ -164,14 +164,14 @@ int parse_cbm(struct rdt_parse_data *data, struct rdt_resource *r,
* either is exclusive.
*/
if (rdtgroup_cbm_overlaps(r, d, cbm_val, rdtgrp->closid, true)) {
- rdt_last_cmd_printf("overlaps with exclusive group\n");
+ rdt_last_cmd_printf("Overlaps with exclusive group\n");
return -EINVAL;
}

if (rdtgroup_cbm_overlaps(r, d, cbm_val, rdtgrp->closid, false)) {
if (rdtgrp->mode == RDT_MODE_EXCLUSIVE ||
rdtgrp->mode == RDT_MODE_PSEUDO_LOCKSETUP) {
- rdt_last_cmd_printf("overlaps with other group\n");
+ rdt_last_cmd_printf("0verlaps with other group\n");
return -EINVAL;
}
}
@@ -293,7 +293,7 @@ static int rdtgroup_parse_resource(char *resname, char *tok,
if (!strcmp(resname, r->name) && rdtgrp->closid < r->num_closid)
return parse_line(tok, r, rdtgrp);
}
- rdt_last_cmd_printf("unknown/unsupported resource name '%s'\n", resname);
+ rdt_last_cmd_printf("Unknown or unsupported resource name '%s'\n", resname);
return -EINVAL;
}

@@ -326,7 +326,7 @@ ssize_t rdtgroup_schemata_write(struct kernfs_open_file *of,
*/
if (rdtgrp->mode == RDT_MODE_PSEUDO_LOCKED) {
ret = -EINVAL;
- rdt_last_cmd_puts("resource group is pseudo-locked\n");
+ rdt_last_cmd_puts("Resource group is pseudo-locked\n");
goto out;
}

diff --git a/arch/x86/kernel/cpu/intel_rdt_pseudo_lock.c b/arch/x86/kernel/cpu/intel_rdt_pseudo_lock.c
index 815b4e92522c..cde746d64600 100644
--- a/arch/x86/kernel/cpu/intel_rdt_pseudo_lock.c
+++ b/arch/x86/kernel/cpu/intel_rdt_pseudo_lock.c
@@ -213,7 +213,7 @@ static int pseudo_lock_cstates_constrain(struct pseudo_lock_region *plr)
for_each_cpu(cpu, &plr->d->cpu_mask) {
pm_req = kzalloc(sizeof(*pm_req), GFP_KERNEL);
if (!pm_req) {
- rdt_last_cmd_puts("fail allocating mem for PM QoS\n");
+ rdt_last_cmd_puts("Failure to allocate memory for PM QoS\n");
ret = -ENOMEM;
goto out_err;
}
@@ -222,7 +222,7 @@ static int pseudo_lock_cstates_constrain(struct pseudo_lock_region *plr)
DEV_PM_QOS_RESUME_LATENCY,
30);
if (ret < 0) {
- rdt_last_cmd_printf("fail to add latency req cpu%d\n",
+ rdt_last_cmd_printf("Failed to add latency req CPU%d\n",
cpu);
kfree(pm_req);
ret = -1;
@@ -289,7 +289,7 @@ static int pseudo_lock_region_init(struct pseudo_lock_region *plr)
plr->cpu = cpumask_first(&plr->d->cpu_mask);

if (!cpu_online(plr->cpu)) {
- rdt_last_cmd_printf("cpu %u associated with cache not online\n",
+ rdt_last_cmd_printf("CPU %u associated with cache not online\n",
plr->cpu);
ret = -ENODEV;
goto out_region;
@@ -307,7 +307,7 @@ static int pseudo_lock_region_init(struct pseudo_lock_region *plr)
}

ret = -1;
- rdt_last_cmd_puts("unable to determine cache line size\n");
+ rdt_last_cmd_puts("Unable to determine cache line size\n");
out_region:
pseudo_lock_region_clear(plr);
return ret;
@@ -361,14 +361,14 @@ static int pseudo_lock_region_alloc(struct pseudo_lock_region *plr)
* KMALLOC_MAX_SIZE.
*/
if (plr->size > KMALLOC_MAX_SIZE) {
- rdt_last_cmd_puts("requested region exceeds maximum size\n");
+ rdt_last_cmd_puts("Requested region exceeds maximum size\n");
ret = -E2BIG;
goto out_region;
}

plr->kmem = kzalloc(plr->size, GFP_KERNEL);
if (!plr->kmem) {
- rdt_last_cmd_puts("unable to allocate memory\n");
+ rdt_last_cmd_puts("Unable to allocate memory\n");
ret = -ENOMEM;
goto out_region;
}
@@ -665,7 +665,7 @@ int rdtgroup_locksetup_enter(struct rdtgroup *rdtgrp)
* default closid associated with it.
*/
if (rdtgrp == &rdtgroup_default) {
- rdt_last_cmd_puts("cannot pseudo-lock default group\n");
+ rdt_last_cmd_puts("Cannot pseudo-lock default group\n");
return -EINVAL;
}

@@ -707,17 +707,17 @@ int rdtgroup_locksetup_enter(struct rdtgroup *rdtgrp)
*/
prefetch_disable_bits = get_prefetch_disable_bits();
if (prefetch_disable_bits == 0) {
- rdt_last_cmd_puts("pseudo-locking not supported\n");
+ rdt_last_cmd_puts("Pseudo-locking not supported\n");
return -EINVAL;
}

if (rdtgroup_monitor_in_progress(rdtgrp)) {
- rdt_last_cmd_puts("monitoring in progress\n");
+ rdt_last_cmd_puts("Monitoring in progress\n");
return -EINVAL;
}

if (rdtgroup_tasks_assigned(rdtgrp)) {
- rdt_last_cmd_puts("tasks assigned to resource group\n");
+ rdt_last_cmd_puts("Tasks assigned to resource group\n");
return -EINVAL;
}

@@ -727,13 +727,13 @@ int rdtgroup_locksetup_enter(struct rdtgroup *rdtgrp)
}

if (rdtgroup_locksetup_user_restrict(rdtgrp)) {
- rdt_last_cmd_puts("unable to modify resctrl permissions\n");
+ rdt_last_cmd_puts("Unable to modify resctrl permissions\n");
return -EIO;
}

ret = pseudo_lock_init(rdtgrp);
if (ret) {
- rdt_last_cmd_puts("unable to init pseudo-lock region\n");
+ rdt_last_cmd_puts("Unable to init pseudo-lock region\n");
goto out_release;
}

@@ -770,7 +770,7 @@ int rdtgroup_locksetup_exit(struct rdtgroup *rdtgrp)
if (rdt_mon_capable) {
ret = alloc_rmid();
if (ret < 0) {
- rdt_last_cmd_puts("out of RMIDs\n");
+ rdt_last_cmd_puts("Out of RMIDs\n");
return ret;
}
rdtgrp->mon.rmid = ret;
@@ -1304,7 +1304,7 @@ int rdtgroup_pseudo_lock_create(struct rdtgroup *rdtgrp)
"pseudo_lock/%u", plr->cpu);
if (IS_ERR(thread)) {
ret = PTR_ERR(thread);
- rdt_last_cmd_printf("locking thread returned error %d\n", ret);
+ rdt_last_cmd_printf("Locking thread returned error %d\n", ret);
goto out_cstates;
}

@@ -1322,13 +1322,13 @@ int rdtgroup_pseudo_lock_create(struct rdtgroup *rdtgrp)
* the cleared, but not freed, plr struct resulting in an
* empty pseudo-locking loop.
*/
- rdt_last_cmd_puts("locking thread interrupted\n");
+ rdt_last_cmd_puts("Locking thread interrupted\n");
goto out_cstates;
}

ret = pseudo_lock_minor_get(&new_minor);
if (ret < 0) {
- rdt_last_cmd_puts("unable to obtain a new minor number\n");
+ rdt_last_cmd_puts("Unable to obtain a new minor number\n");
goto out_cstates;
}

@@ -1360,7 +1360,7 @@ int rdtgroup_pseudo_lock_create(struct rdtgroup *rdtgrp)

if (IS_ERR(dev)) {
ret = PTR_ERR(dev);
- rdt_last_cmd_printf("failed to create character device: %d\n",
+ rdt_last_cmd_printf("Failed to create character device: %d\n",
ret);
goto out_debugfs;
}
diff --git a/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c b/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c
index 951c61367688..17b63a4748bf 100644
--- a/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c
+++ b/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c
@@ -345,7 +345,7 @@ static int cpus_mon_write(struct rdtgroup *rdtgrp, cpumask_var_t newmask,
/* Check whether cpus belong to parent ctrl group */
cpumask_andnot(tmpmask, newmask, &prgrp->cpu_mask);
if (cpumask_weight(tmpmask)) {
- rdt_last_cmd_puts("can only add CPUs to mongroup that belong to parent\n");
+ rdt_last_cmd_puts("Can only add CPUs to mongroup that belong to parent\n");
return -EINVAL;
}

@@ -470,14 +470,14 @@ static ssize_t rdtgroup_cpus_write(struct kernfs_open_file *of,
rdt_last_cmd_clear();
if (!rdtgrp) {
ret = -ENOENT;
- rdt_last_cmd_puts("directory was removed\n");
+ rdt_last_cmd_puts("Directory was removed\n");
goto unlock;
}

if (rdtgrp->mode == RDT_MODE_PSEUDO_LOCKED ||
rdtgrp->mode == RDT_MODE_PSEUDO_LOCKSETUP) {
ret = -EINVAL;
- rdt_last_cmd_puts("pseudo-locking in progress\n");
+ rdt_last_cmd_puts("Pseudo-locking in progress\n");
goto unlock;
}

@@ -487,7 +487,7 @@ static ssize_t rdtgroup_cpus_write(struct kernfs_open_file *of,
ret = cpumask_parse(buf, newmask);

if (ret) {
- rdt_last_cmd_puts("bad cpu list/mask\n");
+ rdt_last_cmd_puts("Bad CPU list/mask\n");
goto unlock;
}

@@ -495,7 +495,7 @@ static ssize_t rdtgroup_cpus_write(struct kernfs_open_file *of,
cpumask_andnot(tmpmask, newmask, cpu_online_mask);
if (cpumask_weight(tmpmask)) {
ret = -EINVAL;
- rdt_last_cmd_puts("can only assign online cpus\n");
+ rdt_last_cmd_puts("Can only assign online CPUs\n");
goto unlock;
}

@@ -574,7 +574,7 @@ static int __rdtgroup_move_task(struct task_struct *tsk,
*/
atomic_dec(&rdtgrp->waitcount);
kfree(callback);
- rdt_last_cmd_puts("task exited\n");
+ rdt_last_cmd_puts("Task exited\n");
} else {
/*
* For ctrl_mon groups move both closid and rmid.
@@ -692,7 +692,7 @@ static ssize_t rdtgroup_tasks_write(struct kernfs_open_file *of,
if (rdtgrp->mode == RDT_MODE_PSEUDO_LOCKED ||
rdtgrp->mode == RDT_MODE_PSEUDO_LOCKSETUP) {
ret = -EINVAL;
- rdt_last_cmd_puts("pseudo-locking in progress\n");
+ rdt_last_cmd_puts("Pseudo-locking in progress\n");
goto unlock;
}

@@ -1158,14 +1158,14 @@ static bool rdtgroup_mode_test_exclusive(struct rdtgroup *rdtgrp)
list_for_each_entry(d, &r->domains, list) {
if (rdtgroup_cbm_overlaps(r, d, d->ctrl_val[closid],
rdtgrp->closid, false)) {
- rdt_last_cmd_puts("schemata overlaps\n");
+ rdt_last_cmd_puts("Schemata overlaps\n");
return false;
}
}
}

if (!has_cache) {
- rdt_last_cmd_puts("cannot be exclusive without CAT/CDP\n");
+ rdt_last_cmd_puts("Cannot be exclusive without CAT/CDP\n");
return false;
}

@@ -1206,7 +1206,7 @@ static ssize_t rdtgroup_mode_write(struct kernfs_open_file *of,
goto out;

if (mode == RDT_MODE_PSEUDO_LOCKED) {
- rdt_last_cmd_printf("cannot change pseudo-locked group\n");
+ rdt_last_cmd_printf("Cannot change pseudo-locked group\n");
ret = -EINVAL;
goto out;
}
@@ -1235,7 +1235,7 @@ static ssize_t rdtgroup_mode_write(struct kernfs_open_file *of,
goto out;
rdtgrp->mode = RDT_MODE_PSEUDO_LOCKSETUP;
} else {
- rdt_last_cmd_printf("unknown/unsupported mode\n");
+ rdt_last_cmd_printf("Unknown orunsupported mode\n");
ret = -EINVAL;
}

@@ -2540,7 +2540,7 @@ static int rdtgroup_init_alloc(struct rdtgroup *rdtgrp)
tmp_cbm = d->new_ctrl;
if (bitmap_weight(&tmp_cbm, r->cache.cbm_len) <
r->cache.min_cbm_bits) {
- rdt_last_cmd_printf("no space on %s:%d\n",
+ rdt_last_cmd_printf("No space on %s:%d\n",
r->name, d->id);
return -ENOSPC;
}
@@ -2557,7 +2557,7 @@ static int rdtgroup_init_alloc(struct rdtgroup *rdtgrp)
continue;
ret = update_domains(r, rdtgrp->closid);
if (ret < 0) {
- rdt_last_cmd_puts("failed to initialize allocations\n");
+ rdt_last_cmd_puts("Failed to initialize allocations\n");
return ret;
}
rdtgrp->mode = RDT_MODE_SHAREABLE;
@@ -2580,7 +2580,7 @@ static int mkdir_rdt_prepare(struct kernfs_node *parent_kn,
rdt_last_cmd_clear();
if (!prdtgrp) {
ret = -ENODEV;
- rdt_last_cmd_puts("directory was removed\n");
+ rdt_last_cmd_puts("Directory was removed\n");
goto out_unlock;
}

@@ -2588,7 +2588,7 @@ static int mkdir_rdt_prepare(struct kernfs_node *parent_kn,
(prdtgrp->mode == RDT_MODE_PSEUDO_LOCKSETUP ||
prdtgrp->mode == RDT_MODE_PSEUDO_LOCKED)) {
ret = -EINVAL;
- rdt_last_cmd_puts("pseudo-locking in progress\n");
+ rdt_last_cmd_puts("Pseudo-locking in progress\n");
goto out_unlock;
}

@@ -2596,7 +2596,7 @@ static int mkdir_rdt_prepare(struct kernfs_node *parent_kn,
rdtgrp = kzalloc(sizeof(*rdtgrp), GFP_KERNEL);
if (!rdtgrp) {
ret = -ENOSPC;
- rdt_last_cmd_puts("kernel out of memory\n");
+ rdt_last_cmd_puts("Kernel out of memory\n");
goto out_unlock;
}
*r = rdtgrp;
@@ -2637,7 +2637,7 @@ static int mkdir_rdt_prepare(struct kernfs_node *parent_kn,
if (rdt_mon_capable) {
ret = alloc_rmid();
if (ret < 0) {
- rdt_last_cmd_puts("out of RMIDs\n");
+ rdt_last_cmd_puts("Out of RMIDs\n");
goto out_destroy;
}
rdtgrp->mon.rmid = ret;
@@ -2725,7 +2725,7 @@ static int rdtgroup_mkdir_ctrl_mon(struct kernfs_node *parent_kn,
kn = rdtgrp->kn;
ret = closid_alloc();
if (ret < 0) {
- rdt_last_cmd_puts("out of CLOSIDs\n");
+ rdt_last_cmd_puts("Out of CLOSIDs\n");
goto out_common_fail;
}
closid = ret;
--
2.19.1