Subject: + mm-replace-__get_cpu_var-uses-with-this_cpu_ptr.patch added to -mm tree
To: cl@xxxxxxxxx,tj@xxxxxxxxxx
From: akpm@xxxxxxxxxxxxxxxxxxxx
Date: Tue, 04 Mar 2014 14:27:10 -0800
The patch titled
Subject: mm: replace __get_cpu_var uses with this_cpu_ptr
has been added to the -mm tree. Its filename is
mm-replace-__get_cpu_var-uses-with-this_cpu_ptr.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-replace-__get_cpu_var-uses-with-this_cpu_ptr.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-replace-__get_cpu_var-uses-with-this_cpu_ptr.patch
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*** Remember to use Documentation/SubmitChecklist when testing your code ***
The -mm tree is included into linux-next and is updated
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------------------------------------------------------
From: Christoph Lameter <cl@xxxxxxxxx>
Subject: mm: replace __get_cpu_var uses with this_cpu_ptr
Replace places where __get_cpu_var() is used for an address calculation
with this_cpu_ptr().
Signed-off-by: Christoph Lameter <cl@xxxxxxxxx>
Cc: Tejun Heo <tj@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
lib/radix-tree.c | 6 +++---
mm/memcontrol.c | 2 +-
mm/memory-failure.c | 2 +-
mm/page-writeback.c | 4 ++--
mm/slub.c | 6 +++---
mm/swap.c | 2 +-
mm/vmalloc.c | 2 +-
mm/vmstat.c | 4 ++--
mm/zsmalloc.c | 2 +-
9 files changed, 15 insertions(+), 15 deletions(-)
diff -puN lib/radix-tree.c~mm-replace-__get_cpu_var-uses-with-this_cpu_ptr lib/radix-tree.c
--- a/lib/radix-tree.c~mm-replace-__get_cpu_var-uses-with-this_cpu_ptr
+++ a/lib/radix-tree.c
@@ -194,7 +194,7 @@ radix_tree_node_alloc(struct radix_tree_
* succeed in getting a node here (and never reach
* kmem_cache_alloc)
*/
- rtp = &__get_cpu_var(radix_tree_preloads);
+ rtp = this_cpu_ptr(&radix_tree_preloads);
if (rtp->nr) {
ret = rtp->nodes[rtp->nr - 1];
rtp->nodes[rtp->nr - 1] = NULL;
@@ -250,14 +250,14 @@ static int __radix_tree_preload(gfp_t gf
int ret = -ENOMEM;
preempt_disable();
- rtp = &__get_cpu_var(radix_tree_preloads);
+ rtp = this_cpu_ptr(&radix_tree_preloads);
while (rtp->nr < ARRAY_SIZE(rtp->nodes)) {
preempt_enable();
node = kmem_cache_alloc(radix_tree_node_cachep, gfp_mask);
if (node == NULL)
goto out;
preempt_disable();
- rtp = &__get_cpu_var(radix_tree_preloads);
+ rtp = this_cpu_ptr(&radix_tree_preloads);
if (rtp->nr < ARRAY_SIZE(rtp->nodes))
rtp->nodes[rtp->nr++] = node;
else
diff -puN mm/memcontrol.c~mm-replace-__get_cpu_var-uses-with-this_cpu_ptr mm/memcontrol.c
--- a/mm/memcontrol.c~mm-replace-__get_cpu_var-uses-with-this_cpu_ptr
+++ a/mm/memcontrol.c
@@ -2441,7 +2441,7 @@ static void drain_stock(struct memcg_sto
*/
static void drain_local_stock(struct work_struct *dummy)
{
- struct memcg_stock_pcp *stock = &__get_cpu_var(memcg_stock);
+ struct memcg_stock_pcp *stock = this_cpu_ptr(&memcg_stock);
drain_stock(stock);
clear_bit(FLUSHING_CACHED_CHARGE, &stock->flags);
}
diff -puN mm/memory-failure.c~mm-replace-__get_cpu_var-uses-with-this_cpu_ptr mm/memory-failure.c
--- a/mm/memory-failure.c~mm-replace-__get_cpu_var-uses-with-this_cpu_ptr
+++ a/mm/memory-failure.c
@@ -1295,7 +1295,7 @@ static void memory_failure_work_func(str
unsigned long proc_flags;
int gotten;
- mf_cpu = &__get_cpu_var(memory_failure_cpu);
+ mf_cpu = this_cpu_ptr(&memory_failure_cpu);
for (;;) {
spin_lock_irqsave(&mf_cpu->lock, proc_flags);
gotten = kfifo_get(&mf_cpu->fifo, &entry);
diff -puN mm/page-writeback.c~mm-replace-__get_cpu_var-uses-with-this_cpu_ptr mm/page-writeback.c
--- a/mm/page-writeback.c~mm-replace-__get_cpu_var-uses-with-this_cpu_ptr
+++ a/mm/page-writeback.c
@@ -1623,7 +1623,7 @@ void balance_dirty_pages_ratelimited(str
* 1000+ tasks, all of them start dirtying pages at exactly the same
* time, hence all honoured too large initial task->nr_dirtied_pause.
*/
- p = &__get_cpu_var(bdp_ratelimits);
+ p = this_cpu_ptr(&bdp_ratelimits);
if (unlikely(current->nr_dirtied >= ratelimit))
*p = 0;
else if (unlikely(*p >= ratelimit_pages)) {
@@ -1635,7 +1635,7 @@ void balance_dirty_pages_ratelimited(str
* short-lived tasks (eg. gcc invocations in a kernel build) escaping
* the dirty throttling and livelock other long-run dirtiers.
*/
- p = &__get_cpu_var(dirty_throttle_leaks);
+ p = this_cpu_ptr(&dirty_throttle_leaks);
if (*p > 0 && current->nr_dirtied < ratelimit) {
unsigned long nr_pages_dirtied;
nr_pages_dirtied = min(*p, ratelimit - current->nr_dirtied);
diff -puN mm/slub.c~mm-replace-__get_cpu_var-uses-with-this_cpu_ptr mm/slub.c
--- a/mm/slub.c~mm-replace-__get_cpu_var-uses-with-this_cpu_ptr
+++ a/mm/slub.c
@@ -2196,7 +2196,7 @@ static inline void *new_slab_objects(str
page = new_slab(s, flags, node);
if (page) {
- c = __this_cpu_ptr(s->cpu_slab);
+ c = raw_cpu_ptr(s->cpu_slab);
if (c->page)
flush_slab(s, c);
@@ -2416,7 +2416,7 @@ redo:
* and the retrieval of the tid.
*/
preempt_disable();
- c = __this_cpu_ptr(s->cpu_slab);
+ c = this_cpu_ptr(s->cpu_slab);
/*
* The transaction ids are globally unique per cpu and per operation on
@@ -2672,7 +2672,7 @@ redo:
* during the cmpxchg then the free will succedd.
*/
preempt_disable();
- c = __this_cpu_ptr(s->cpu_slab);
+ c = this_cpu_ptr(s->cpu_slab);
tid = c->tid;
preempt_enable();
diff -puN mm/swap.c~mm-replace-__get_cpu_var-uses-with-this_cpu_ptr mm/swap.c
--- a/mm/swap.c~mm-replace-__get_cpu_var-uses-with-this_cpu_ptr
+++ a/mm/swap.c
@@ -441,7 +441,7 @@ void rotate_reclaimable_page(struct page
page_cache_get(page);
local_irq_save(flags);
- pvec = &__get_cpu_var(lru_rotate_pvecs);
+ pvec = this_cpu_ptr(&lru_rotate_pvecs);
if (!pagevec_add(pvec, page))
pagevec_move_tail(pvec);
local_irq_restore(flags);
diff -puN mm/vmalloc.c~mm-replace-__get_cpu_var-uses-with-this_cpu_ptr mm/vmalloc.c
--- a/mm/vmalloc.c~mm-replace-__get_cpu_var-uses-with-this_cpu_ptr
+++ a/mm/vmalloc.c
@@ -1490,7 +1490,7 @@ void vfree(const void *addr)
if (!addr)
return;
if (unlikely(in_interrupt())) {
- struct vfree_deferred *p = &__get_cpu_var(vfree_deferred);
+ struct vfree_deferred *p = this_cpu_ptr(&vfree_deferred);
if (llist_add((struct llist_node *)addr, &p->list))
schedule_work(&p->wq);
} else
diff -puN mm/vmstat.c~mm-replace-__get_cpu_var-uses-with-this_cpu_ptr mm/vmstat.c
--- a/mm/vmstat.c~mm-replace-__get_cpu_var-uses-with-this_cpu_ptr
+++ a/mm/vmstat.c
@@ -489,7 +489,7 @@ static void refresh_cpu_vm_stats(void)
continue;
if (__this_cpu_read(p->pcp.count))
- drain_zone_pages(zone, __this_cpu_ptr(&p->pcp));
+ drain_zone_pages(zone, this_cpu_ptr(&p->pcp));
#endif
}
fold_diff(global_diff);
@@ -1226,7 +1226,7 @@ int sysctl_stat_interval __read_mostly =
static void vmstat_update(struct work_struct *w)
{
refresh_cpu_vm_stats();
- schedule_delayed_work(&__get_cpu_var(vmstat_work),
+ schedule_delayed_work(this_cpu_ptr(&vmstat_work),
round_jiffies_relative(sysctl_stat_interval));
}
diff -puN mm/zsmalloc.c~mm-replace-__get_cpu_var-uses-with-this_cpu_ptr mm/zsmalloc.c
--- a/mm/zsmalloc.c~mm-replace-__get_cpu_var-uses-with-this_cpu_ptr
+++ a/mm/zsmalloc.c
@@ -1071,7 +1071,7 @@ void zs_unmap_object(struct zs_pool *poo
class = &pool->size_class[class_idx];
off = obj_idx_to_offset(page, obj_idx, class->size);
- area = &__get_cpu_var(zs_map_area);
+ area = this_cpu_ptr(&zs_map_area);
if (off + class->size <= PAGE_SIZE)
kunmap_atomic(area->vm_addr);
else {
_
Patches currently in -mm which might be from cl@xxxxxxxxx are
mm-close-pagetail-race.patch
mm-page_alloc-make-first_page-visible-before-pagetail.patch
kthread-ensure-locality-of-task_struct-allocations.patch
mm-slab-slub-use-page-list-consistently-instead-of-page-lru.patch
kobject-dont-block-for-each-kobject_uevent.patch
kobject-dont-block-for-each-kobject_uevent-v2.patch
slub-do-not-drop-slab_mutex-for-sysfs_slab_add.patch
kmod-run-usermodehelpers-only-on-cpus-allowed-for-kthreadd-v2.patch
kmod-run-usermodehelpers-only-on-cpus-allowed-for-kthreadd-v2-fix.patch
kmod-run-usermodehelpers-only-on-cpus-allowed-for-kthreadd-v2-checkpatch-fixes.patch
linux-next.patch
percpu-add-raw_cpu_ops.patch
mm-use-raw_cpu-ops-for-determining-current-numa-node.patch
modules-use-raw_cpu_write-for-initialization-of-per-cpu-refcount.patch
net-replace-__this_cpu_inc-in-routec-with-raw_cpu_inc.patch
percpu-add-preemption-checks-to-__this_cpu-ops.patch
mm-replace-__get_cpu_var-uses-with-this_cpu_ptr.patch
tracing-replace-__get_cpu_var-uses-with-this_cpu_ptr.patch
percpu-replace-__get_cpu_var-with-this_cpu_ptr.patch
kernel-misc-replace-__get_cpu_var-uses.patch
drivers-char-random-replace-__get_cpu_var-uses.patch
drivers-cpuidle-replace-__get_cpu_var-uses-for-address-calculation.patch
drivers-oprofile-replace-__get_cpu_var-uses-for-address-calculation.patch
drivers-leds-replace-__get_cpu_var-use-through-this_cpu_ptr.patch
drivers-clocksource-replace-__get_cpu_var-used-for-address-calculation.patch
parisc-replace-__get_cpu_var-uses-for-address-calculation.patch
metag-replace-__get_cpu_var-uses-for-address-calculation.patch
drivers-net-ethernet-tile-replace-__get_cpu_var-uses-for-address-calculation.patch
drivers-net-ethernet-tile-__get_cpu_var-call-introduced-in-314.patch
tilegx-another-case-of-get_cpu_var.patch
time-replace-__get_cpu_var-uses.patch
scheduler-replace-__get_cpu_var-with-this_cpu_ptr.patch
tick-sched-fix-two-new-uses-of-__get_cpu_ptr.patch
block-replace-__this_cpu_ptr-with-raw_cpu_ptr.patch
rcu-replace-__this_cpu_ptr-uses-with-raw_cpu_ptr.patch
watchdog-replace-__raw_get_cpu_var-uses.patch
net-replace-get_cpu_var-through-this_cpu_ptr.patch
md-replace-__this_cpu_ptr-with-raw_cpu_ptr.patch
irqchips-replace-__this_cpu_ptr-uses.patch
x86-replace-__get_cpu_var-uses.patch
x86-change-__get_cpu_var-calls-introduced-in-314.patch
uv-replace-__get_cpu_var.patch
arm-replace-__this_cpu_ptr-with-raw_cpu_ptr.patch
mips-replace-__get_cpu_var-uses-in-fpu-emulator.patch
mips-replace-__get_cpu_var-uses.patch
s390-rename-__this_cpu_ptr-to-raw_cpu_ptr.patch
s390-replace-__get_cpu_var-uses.patch
s390-handle-new-__get_cpu_var-calls-added-in-314.patch
ia64-replace-__get_cpu_var-uses.patch
powerpc-replace-__get_cpu_var-uses.patch
powerpc-handle-new-__get_cpu_var-calls-in-314.patch
sparc-replace-__get_cpu_var-uses.patch
tile-replace-__get_cpu_var-uses.patch
blackfin-replace-__get_cpu_var-uses.patch
avr32-replace-__get_cpu_var-with-__this_cpu_write.patch
alpha-replace-__get_cpu_var.patch
sh-replace-__get_cpu_var-uses.patch
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