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Diffstat (limited to 'mm')
-rw-r--r--mm/fremap.c4
-rw-r--r--mm/kmemleak-test.c36
-rw-r--r--mm/kmemleak.c36
-rw-r--r--mm/memblock.c10
-rw-r--r--mm/memcontrol.c125
-rw-r--r--mm/mempolicy.c5
-rw-r--r--mm/mempool.c6
-rw-r--r--mm/mmap.c21
-rw-r--r--mm/nobootmem.c2
-rw-r--r--mm/nommu.c5
-rw-r--r--mm/page-writeback.c2
-rw-r--r--mm/page_alloc.c12
-rw-r--r--mm/slub.c2
-rw-r--r--mm/vmscan.c26
14 files changed, 169 insertions, 123 deletions
diff --git a/mm/fremap.c b/mm/fremap.c
index 2c5646f11f41..72b8fa361433 100644
--- a/mm/fremap.c
+++ b/mm/fremap.c
@@ -149,6 +149,10 @@ SYSCALL_DEFINE5(remap_file_pages, unsigned long, start, unsigned long, size,
int has_write_lock = 0;
vm_flags_t vm_flags = 0;
+ pr_warn_once("%s (%d) uses deprecated remap_file_pages() syscall. "
+ "See Documentation/vm/remap_file_pages.txt.\n",
+ current->comm, current->pid);
+
if (prot)
return err;
/*
diff --git a/mm/kmemleak-test.c b/mm/kmemleak-test.c
index ff0d9779cec8..dcdcadb69533 100644
--- a/mm/kmemleak-test.c
+++ b/mm/kmemleak-test.c
@@ -18,6 +18,8 @@
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
+#define pr_fmt(fmt) "kmemleak: " fmt
+
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/module.h>
@@ -50,25 +52,25 @@ static int __init kmemleak_test_init(void)
printk(KERN_INFO "Kmemleak testing\n");
/* make some orphan objects */
- pr_info("kmemleak: kmalloc(32) = %p\n", kmalloc(32, GFP_KERNEL));
- pr_info("kmemleak: kmalloc(32) = %p\n", kmalloc(32, GFP_KERNEL));
- pr_info("kmemleak: kmalloc(1024) = %p\n", kmalloc(1024, GFP_KERNEL));
- pr_info("kmemleak: kmalloc(1024) = %p\n", kmalloc(1024, GFP_KERNEL));
- pr_info("kmemleak: kmalloc(2048) = %p\n", kmalloc(2048, GFP_KERNEL));
- pr_info("kmemleak: kmalloc(2048) = %p\n", kmalloc(2048, GFP_KERNEL));
- pr_info("kmemleak: kmalloc(4096) = %p\n", kmalloc(4096, GFP_KERNEL));
- pr_info("kmemleak: kmalloc(4096) = %p\n", kmalloc(4096, GFP_KERNEL));
+ pr_info("kmalloc(32) = %p\n", kmalloc(32, GFP_KERNEL));
+ pr_info("kmalloc(32) = %p\n", kmalloc(32, GFP_KERNEL));
+ pr_info("kmalloc(1024) = %p\n", kmalloc(1024, GFP_KERNEL));
+ pr_info("kmalloc(1024) = %p\n", kmalloc(1024, GFP_KERNEL));
+ pr_info("kmalloc(2048) = %p\n", kmalloc(2048, GFP_KERNEL));
+ pr_info("kmalloc(2048) = %p\n", kmalloc(2048, GFP_KERNEL));
+ pr_info("kmalloc(4096) = %p\n", kmalloc(4096, GFP_KERNEL));
+ pr_info("kmalloc(4096) = %p\n", kmalloc(4096, GFP_KERNEL));
#ifndef CONFIG_MODULES
- pr_info("kmemleak: kmem_cache_alloc(files_cachep) = %p\n",
+ pr_info("kmem_cache_alloc(files_cachep) = %p\n",
kmem_cache_alloc(files_cachep, GFP_KERNEL));
- pr_info("kmemleak: kmem_cache_alloc(files_cachep) = %p\n",
+ pr_info("kmem_cache_alloc(files_cachep) = %p\n",
kmem_cache_alloc(files_cachep, GFP_KERNEL));
#endif
- pr_info("kmemleak: vmalloc(64) = %p\n", vmalloc(64));
- pr_info("kmemleak: vmalloc(64) = %p\n", vmalloc(64));
- pr_info("kmemleak: vmalloc(64) = %p\n", vmalloc(64));
- pr_info("kmemleak: vmalloc(64) = %p\n", vmalloc(64));
- pr_info("kmemleak: vmalloc(64) = %p\n", vmalloc(64));
+ pr_info("vmalloc(64) = %p\n", vmalloc(64));
+ pr_info("vmalloc(64) = %p\n", vmalloc(64));
+ pr_info("vmalloc(64) = %p\n", vmalloc(64));
+ pr_info("vmalloc(64) = %p\n", vmalloc(64));
+ pr_info("vmalloc(64) = %p\n", vmalloc(64));
/*
* Add elements to a list. They should only appear as orphan
@@ -76,7 +78,7 @@ static int __init kmemleak_test_init(void)
*/
for (i = 0; i < 10; i++) {
elem = kzalloc(sizeof(*elem), GFP_KERNEL);
- pr_info("kmemleak: kzalloc(sizeof(*elem)) = %p\n", elem);
+ pr_info("kzalloc(sizeof(*elem)) = %p\n", elem);
if (!elem)
return -ENOMEM;
INIT_LIST_HEAD(&elem->list);
@@ -85,7 +87,7 @@ static int __init kmemleak_test_init(void)
for_each_possible_cpu(i) {
per_cpu(kmemleak_test_pointer, i) = kmalloc(129, GFP_KERNEL);
- pr_info("kmemleak: kmalloc(129) = %p\n",
+ pr_info("kmalloc(129) = %p\n",
per_cpu(kmemleak_test_pointer, i));
}
diff --git a/mm/kmemleak.c b/mm/kmemleak.c
index 736ade31d1dc..3cda50c1e394 100644
--- a/mm/kmemleak.c
+++ b/mm/kmemleak.c
@@ -387,7 +387,7 @@ static void dump_object_info(struct kmemleak_object *object)
pr_notice(" min_count = %d\n", object->min_count);
pr_notice(" count = %d\n", object->count);
pr_notice(" flags = 0x%lx\n", object->flags);
- pr_notice(" checksum = %d\n", object->checksum);
+ pr_notice(" checksum = %u\n", object->checksum);
pr_notice(" backtrace:\n");
print_stack_trace(&trace, 4);
}
@@ -990,6 +990,40 @@ void __ref kmemleak_free_percpu(const void __percpu *ptr)
EXPORT_SYMBOL_GPL(kmemleak_free_percpu);
/**
+ * kmemleak_update_trace - update object allocation stack trace
+ * @ptr: pointer to beginning of the object
+ *
+ * Override the object allocation stack trace for cases where the actual
+ * allocation place is not always useful.
+ */
+void __ref kmemleak_update_trace(const void *ptr)
+{
+ struct kmemleak_object *object;
+ unsigned long flags;
+
+ pr_debug("%s(0x%p)\n", __func__, ptr);
+
+ if (!kmemleak_enabled || IS_ERR_OR_NULL(ptr))
+ return;
+
+ object = find_and_get_object((unsigned long)ptr, 1);
+ if (!object) {
+#ifdef DEBUG
+ kmemleak_warn("Updating stack trace for unknown object at %p\n",
+ ptr);
+#endif
+ return;
+ }
+
+ spin_lock_irqsave(&object->lock, flags);
+ object->trace_len = __save_stack_trace(object->trace);
+ spin_unlock_irqrestore(&object->lock, flags);
+
+ put_object(object);
+}
+EXPORT_SYMBOL(kmemleak_update_trace);
+
+/**
* kmemleak_not_leak - mark an allocated object as false positive
* @ptr: pointer to beginning of the object
*
diff --git a/mm/memblock.c b/mm/memblock.c
index 0aa0d2b07624..6d2f219a48b0 100644
--- a/mm/memblock.c
+++ b/mm/memblock.c
@@ -691,6 +691,7 @@ int __init_memblock memblock_free(phys_addr_t base, phys_addr_t size)
(unsigned long long)base + size - 1,
(void *)_RET_IP_);
+ kmemleak_free_part(__va(base), size);
return memblock_remove_range(&memblock.reserved, base, size);
}
@@ -1043,9 +1044,14 @@ static phys_addr_t __init memblock_alloc_range_nid(phys_addr_t size,
align = SMP_CACHE_BYTES;
found = memblock_find_in_range_node(size, align, start, end, nid);
- if (found && !memblock_reserve(found, size))
+ if (found && !memblock_reserve(found, size)) {
+ /*
+ * The min_count is set to 0 so that memblock allocations are
+ * never reported as leaks.
+ */
+ kmemleak_alloc(__va(found), size, 0, 0);
return found;
-
+ }
return 0;
}
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index a500cb0594c4..a9559b91603c 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -676,9 +676,11 @@ static void disarm_static_keys(struct mem_cgroup *memcg)
static void drain_all_stock_async(struct mem_cgroup *memcg);
static struct mem_cgroup_per_zone *
-mem_cgroup_zoneinfo(struct mem_cgroup *memcg, int nid, int zid)
+mem_cgroup_zone_zoneinfo(struct mem_cgroup *memcg, struct zone *zone)
{
- VM_BUG_ON((unsigned)nid >= nr_node_ids);
+ int nid = zone_to_nid(zone);
+ int zid = zone_idx(zone);
+
return &memcg->nodeinfo[nid]->zoneinfo[zid];
}
@@ -688,12 +690,12 @@ struct cgroup_subsys_state *mem_cgroup_css(struct mem_cgroup *memcg)
}
static struct mem_cgroup_per_zone *
-page_cgroup_zoneinfo(struct mem_cgroup *memcg, struct page *page)
+mem_cgroup_page_zoneinfo(struct mem_cgroup *memcg, struct page *page)
{
int nid = page_to_nid(page);
int zid = page_zonenum(page);
- return mem_cgroup_zoneinfo(memcg, nid, zid);
+ return &memcg->nodeinfo[nid]->zoneinfo[zid];
}
static struct mem_cgroup_tree_per_zone *
@@ -711,11 +713,9 @@ soft_limit_tree_from_page(struct page *page)
return &soft_limit_tree.rb_tree_per_node[nid]->rb_tree_per_zone[zid];
}
-static void
-__mem_cgroup_insert_exceeded(struct mem_cgroup *memcg,
- struct mem_cgroup_per_zone *mz,
- struct mem_cgroup_tree_per_zone *mctz,
- unsigned long long new_usage_in_excess)
+static void __mem_cgroup_insert_exceeded(struct mem_cgroup_per_zone *mz,
+ struct mem_cgroup_tree_per_zone *mctz,
+ unsigned long long new_usage_in_excess)
{
struct rb_node **p = &mctz->rb_root.rb_node;
struct rb_node *parent = NULL;
@@ -745,10 +745,8 @@ __mem_cgroup_insert_exceeded(struct mem_cgroup *memcg,
mz->on_tree = true;
}
-static void
-__mem_cgroup_remove_exceeded(struct mem_cgroup *memcg,
- struct mem_cgroup_per_zone *mz,
- struct mem_cgroup_tree_per_zone *mctz)
+static void __mem_cgroup_remove_exceeded(struct mem_cgroup_per_zone *mz,
+ struct mem_cgroup_tree_per_zone *mctz)
{
if (!mz->on_tree)
return;
@@ -756,13 +754,11 @@ __mem_cgroup_remove_exceeded(struct mem_cgroup *memcg,
mz->on_tree = false;
}
-static void
-mem_cgroup_remove_exceeded(struct mem_cgroup *memcg,
- struct mem_cgroup_per_zone *mz,
- struct mem_cgroup_tree_per_zone *mctz)
+static void mem_cgroup_remove_exceeded(struct mem_cgroup_per_zone *mz,
+ struct mem_cgroup_tree_per_zone *mctz)
{
spin_lock(&mctz->lock);
- __mem_cgroup_remove_exceeded(memcg, mz, mctz);
+ __mem_cgroup_remove_exceeded(mz, mctz);
spin_unlock(&mctz->lock);
}
@@ -772,16 +768,14 @@ static void mem_cgroup_update_tree(struct mem_cgroup *memcg, struct page *page)
unsigned long long excess;
struct mem_cgroup_per_zone *mz;
struct mem_cgroup_tree_per_zone *mctz;
- int nid = page_to_nid(page);
- int zid = page_zonenum(page);
- mctz = soft_limit_tree_from_page(page);
+ mctz = soft_limit_tree_from_page(page);
/*
* Necessary to update all ancestors when hierarchy is used.
* because their event counter is not touched.
*/
for (; memcg; memcg = parent_mem_cgroup(memcg)) {
- mz = mem_cgroup_zoneinfo(memcg, nid, zid);
+ mz = mem_cgroup_page_zoneinfo(memcg, page);
excess = res_counter_soft_limit_excess(&memcg->res);
/*
* We have to update the tree if mz is on RB-tree or
@@ -791,12 +785,12 @@ static void mem_cgroup_update_tree(struct mem_cgroup *memcg, struct page *page)
spin_lock(&mctz->lock);
/* if on-tree, remove it */
if (mz->on_tree)
- __mem_cgroup_remove_exceeded(memcg, mz, mctz);
+ __mem_cgroup_remove_exceeded(mz, mctz);
/*
* Insert again. mz->usage_in_excess will be updated.
* If excess is 0, no tree ops.
*/
- __mem_cgroup_insert_exceeded(memcg, mz, mctz, excess);
+ __mem_cgroup_insert_exceeded(mz, mctz, excess);
spin_unlock(&mctz->lock);
}
}
@@ -804,15 +798,15 @@ static void mem_cgroup_update_tree(struct mem_cgroup *memcg, struct page *page)
static void mem_cgroup_remove_from_trees(struct mem_cgroup *memcg)
{
- int node, zone;
- struct mem_cgroup_per_zone *mz;
struct mem_cgroup_tree_per_zone *mctz;
+ struct mem_cgroup_per_zone *mz;
+ int nid, zid;
- for_each_node(node) {
- for (zone = 0; zone < MAX_NR_ZONES; zone++) {
- mz = mem_cgroup_zoneinfo(memcg, node, zone);
- mctz = soft_limit_tree_node_zone(node, zone);
- mem_cgroup_remove_exceeded(memcg, mz, mctz);
+ for_each_node(nid) {
+ for (zid = 0; zid < MAX_NR_ZONES; zid++) {
+ mz = &memcg->nodeinfo[nid]->zoneinfo[zid];
+ mctz = soft_limit_tree_node_zone(nid, zid);
+ mem_cgroup_remove_exceeded(mz, mctz);
}
}
}
@@ -835,7 +829,7 @@ retry:
* we will to add it back at the end of reclaim to its correct
* position in the tree.
*/
- __mem_cgroup_remove_exceeded(mz->memcg, mz, mctz);
+ __mem_cgroup_remove_exceeded(mz, mctz);
if (!res_counter_soft_limit_excess(&mz->memcg->res) ||
!css_tryget(&mz->memcg->css))
goto retry;
@@ -946,8 +940,7 @@ static void mem_cgroup_charge_statistics(struct mem_cgroup *memcg,
__this_cpu_add(memcg->stat->nr_page_events, nr_pages);
}
-unsigned long
-mem_cgroup_get_lru_size(struct lruvec *lruvec, enum lru_list lru)
+unsigned long mem_cgroup_get_lru_size(struct lruvec *lruvec, enum lru_list lru)
{
struct mem_cgroup_per_zone *mz;
@@ -955,46 +948,38 @@ mem_cgroup_get_lru_size(struct lruvec *lruvec, enum lru_list lru)
return mz->lru_size[lru];
}
-static unsigned long
-mem_cgroup_zone_nr_lru_pages(struct mem_cgroup *memcg, int nid, int zid,
- unsigned int lru_mask)
+static unsigned long mem_cgroup_node_nr_lru_pages(struct mem_cgroup *memcg,
+ int nid,
+ unsigned int lru_mask)
{
- struct mem_cgroup_per_zone *mz;
- enum lru_list lru;
- unsigned long ret = 0;
-
- mz = mem_cgroup_zoneinfo(memcg, nid, zid);
-
- for_each_lru(lru) {
- if (BIT(lru) & lru_mask)
- ret += mz->lru_size[lru];
- }
- return ret;
-}
-
-static unsigned long
-mem_cgroup_node_nr_lru_pages(struct mem_cgroup *memcg,
- int nid, unsigned int lru_mask)
-{
- u64 total = 0;
+ unsigned long nr = 0;
int zid;
- for (zid = 0; zid < MAX_NR_ZONES; zid++)
- total += mem_cgroup_zone_nr_lru_pages(memcg,
- nid, zid, lru_mask);
+ VM_BUG_ON((unsigned)nid >= nr_node_ids);
- return total;
+ for (zid = 0; zid < MAX_NR_ZONES; zid++) {
+ struct mem_cgroup_per_zone *mz;
+ enum lru_list lru;
+
+ for_each_lru(lru) {
+ if (!(BIT(lru) & lru_mask))
+ continue;
+ mz = &memcg->nodeinfo[nid]->zoneinfo[zid];
+ nr += mz->lru_size[lru];
+ }
+ }
+ return nr;
}
static unsigned long mem_cgroup_nr_lru_pages(struct mem_cgroup *memcg,
unsigned int lru_mask)
{
+ unsigned long nr = 0;
int nid;
- u64 total = 0;
for_each_node_state(nid, N_MEMORY)
- total += mem_cgroup_node_nr_lru_pages(memcg, nid, lru_mask);
- return total;
+ nr += mem_cgroup_node_nr_lru_pages(memcg, nid, lru_mask);
+ return nr;
}
static bool mem_cgroup_event_ratelimit(struct mem_cgroup *memcg,
@@ -1242,11 +1227,9 @@ struct mem_cgroup *mem_cgroup_iter(struct mem_cgroup *root,
int uninitialized_var(seq);
if (reclaim) {
- int nid = zone_to_nid(reclaim->zone);
- int zid = zone_idx(reclaim->zone);
struct mem_cgroup_per_zone *mz;
- mz = mem_cgroup_zoneinfo(root, nid, zid);
+ mz = mem_cgroup_zone_zoneinfo(root, reclaim->zone);
iter = &mz->reclaim_iter[reclaim->priority];
if (prev && reclaim->generation != iter->generation) {
iter->last_visited = NULL;
@@ -1353,7 +1336,7 @@ struct lruvec *mem_cgroup_zone_lruvec(struct zone *zone,
goto out;
}
- mz = mem_cgroup_zoneinfo(memcg, zone_to_nid(zone), zone_idx(zone));
+ mz = mem_cgroup_zone_zoneinfo(memcg, zone);
lruvec = &mz->lruvec;
out:
/*
@@ -1412,7 +1395,7 @@ struct lruvec *mem_cgroup_page_lruvec(struct page *page, struct zone *zone)
if (!PageLRU(page) && !PageCgroupUsed(pc) && memcg != root_mem_cgroup)
pc->mem_cgroup = memcg = root_mem_cgroup;
- mz = page_cgroup_zoneinfo(memcg, page);
+ mz = mem_cgroup_page_zoneinfo(memcg, page);
lruvec = &mz->lruvec;
out:
/*
@@ -1550,7 +1533,7 @@ static unsigned long mem_cgroup_margin(struct mem_cgroup *memcg)
int mem_cgroup_swappiness(struct mem_cgroup *memcg)
{
/* root ? */
- if (!css_parent(&memcg->css))
+ if (mem_cgroup_disabled() || !css_parent(&memcg->css))
return vm_swappiness;
return memcg->swappiness;
@@ -4597,7 +4580,7 @@ unsigned long mem_cgroup_soft_limit_reclaim(struct zone *zone, int order,
break;
} while (1);
}
- __mem_cgroup_remove_exceeded(mz->memcg, mz, mctz);
+ __mem_cgroup_remove_exceeded(mz, mctz);
excess = res_counter_soft_limit_excess(&mz->memcg->res);
/*
* One school of thought says that we should not add
@@ -4608,7 +4591,7 @@ unsigned long mem_cgroup_soft_limit_reclaim(struct zone *zone, int order,
* term TODO.
*/
/* If excess == 0, no tree ops */
- __mem_cgroup_insert_exceeded(mz->memcg, mz, mctz, excess);
+ __mem_cgroup_insert_exceeded(mz, mctz, excess);
spin_unlock(&mctz->lock);
css_put(&mz->memcg->css);
loop++;
@@ -5305,7 +5288,7 @@ static int memcg_stat_show(struct seq_file *m, void *v)
for_each_online_node(nid)
for (zid = 0; zid < MAX_NR_ZONES; zid++) {
- mz = mem_cgroup_zoneinfo(memcg, nid, zid);
+ mz = &memcg->nodeinfo[nid]->zoneinfo[zid];
rstat = &mz->lruvec.reclaim_stat;
recent_rotated[0] += rstat->recent_rotated[0];
diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index 16bc9fa42998..1c16c228f35a 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -65,6 +65,8 @@
kernel is not always grateful with that.
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/mempolicy.h>
#include <linux/mm.h>
#include <linux/highmem.h>
@@ -91,6 +93,7 @@
#include <linux/ctype.h>
#include <linux/mm_inline.h>
#include <linux/mmu_notifier.h>
+#include <linux/printk.h>
#include <asm/tlbflush.h>
#include <asm/uaccess.h>
@@ -2645,7 +2648,7 @@ void __init numa_policy_init(void)
node_set(prefer, interleave_nodes);
if (do_set_mempolicy(MPOL_INTERLEAVE, 0, &interleave_nodes))
- printk("numa_policy_init: interleaving failed\n");
+ pr_err("%s: interleaving failed\n", __func__);
check_numabalancing_enable();
}
diff --git a/mm/mempool.c b/mm/mempool.c
index 455d468c3a5d..e209c98c7203 100644
--- a/mm/mempool.c
+++ b/mm/mempool.c
@@ -10,6 +10,7 @@
#include <linux/mm.h>
#include <linux/slab.h>
+#include <linux/kmemleak.h>
#include <linux/export.h>
#include <linux/mempool.h>
#include <linux/blkdev.h>
@@ -222,6 +223,11 @@ repeat_alloc:
spin_unlock_irqrestore(&pool->lock, flags);
/* paired with rmb in mempool_free(), read comment there */
smp_wmb();
+ /*
+ * Update the allocation stack trace as this is more useful
+ * for debugging.
+ */
+ kmemleak_update_trace(element);
return element;
}
diff --git a/mm/mmap.c b/mm/mmap.c
index ced5efcdd4b6..129b847d30cc 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -6,6 +6,8 @@
* Address space accounting code <alan@lxorguk.ukuu.org.uk>
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/backing-dev.h>
@@ -37,6 +39,7 @@
#include <linux/sched/sysctl.h>
#include <linux/notifier.h>
#include <linux/memory.h>
+#include <linux/printk.h>
#include <asm/uaccess.h>
#include <asm/cacheflush.h>
@@ -361,20 +364,20 @@ static int browse_rb(struct rb_root *root)
struct vm_area_struct *vma;
vma = rb_entry(nd, struct vm_area_struct, vm_rb);
if (vma->vm_start < prev) {
- printk("vm_start %lx prev %lx\n", vma->vm_start, prev);
+ pr_info("vm_start %lx prev %lx\n", vma->vm_start, prev);
bug = 1;
}
if (vma->vm_start < pend) {
- printk("vm_start %lx pend %lx\n", vma->vm_start, pend);
+ pr_info("vm_start %lx pend %lx\n", vma->vm_start, pend);
bug = 1;
}
if (vma->vm_start > vma->vm_end) {
- printk("vm_end %lx < vm_start %lx\n",
+ pr_info("vm_end %lx < vm_start %lx\n",
vma->vm_end, vma->vm_start);
bug = 1;
}
if (vma->rb_subtree_gap != vma_compute_subtree_gap(vma)) {
- printk("free gap %lx, correct %lx\n",
+ pr_info("free gap %lx, correct %lx\n",
vma->rb_subtree_gap,
vma_compute_subtree_gap(vma));
bug = 1;
@@ -388,7 +391,7 @@ static int browse_rb(struct rb_root *root)
for (nd = pn; nd; nd = rb_prev(nd))
j++;
if (i != j) {
- printk("backwards %d, forwards %d\n", j, i);
+ pr_info("backwards %d, forwards %d\n", j, i);
bug = 1;
}
return bug ? -1 : i;
@@ -423,17 +426,17 @@ static void validate_mm(struct mm_struct *mm)
i++;
}
if (i != mm->map_count) {
- printk("map_count %d vm_next %d\n", mm->map_count, i);
+ pr_info("map_count %d vm_next %d\n", mm->map_count, i);
bug = 1;
}
if (highest_address != mm->highest_vm_end) {
- printk("mm->highest_vm_end %lx, found %lx\n",
+ pr_info("mm->highest_vm_end %lx, found %lx\n",
mm->highest_vm_end, highest_address);
bug = 1;
}
i = browse_rb(&mm->mm_rb);
if (i != mm->map_count) {
- printk("map_count %d rb %d\n", mm->map_count, i);
+ pr_info("map_count %d rb %d\n", mm->map_count, i);
bug = 1;
}
BUG_ON(bug);
@@ -3280,7 +3283,7 @@ static struct notifier_block reserve_mem_nb = {
static int __meminit init_reserve_notifier(void)
{
if (register_hotmemory_notifier(&reserve_mem_nb))
- printk("Failed registering memory add/remove notifier for admin reserve");
+ pr_err("Failed registering memory add/remove notifier for admin reserve\n");
return 0;
}
diff --git a/mm/nobootmem.c b/mm/nobootmem.c
index 04a9d94333a5..7ed58602e71b 100644
--- a/mm/nobootmem.c
+++ b/mm/nobootmem.c
@@ -197,7 +197,6 @@ unsigned long __init free_all_bootmem(void)
void __init free_bootmem_node(pg_data_t *pgdat, unsigned long physaddr,
unsigned long size)
{
- kmemleak_free_part(__va(physaddr), size);
memblock_free(physaddr, size);
}
@@ -212,7 +211,6 @@ void __init free_bootmem_node(pg_data_t *pgdat, unsigned long physaddr,
*/
void __init free_bootmem(unsigned long addr, unsigned long size)
{
- kmemleak_free_part(__va(addr), size);
memblock_free(addr, size);
}
diff --git a/mm/nommu.c b/mm/nommu.c
index 85f8d6698d48..b78e3a8f5ee7 100644
--- a/mm/nommu.c
+++ b/mm/nommu.c
@@ -13,6 +13,8 @@
* Copyright (c) 2007-2010 Paul Mundt <lethal@linux-sh.org>
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/export.h>
#include <linux/mm.h>
#include <linux/vmacache.h>
@@ -32,6 +34,7 @@
#include <linux/syscalls.h>
#include <linux/audit.h>
#include <linux/sched/sysctl.h>
+#include <linux/printk.h>
#include <asm/uaccess.h>
#include <asm/tlb.h>
@@ -1246,7 +1249,7 @@ error_free:
return ret;
enomem:
- printk("Allocation of length %lu from process %d (%s) failed\n",
+ pr_err("Allocation of length %lu from process %d (%s) failed\n",
len, current->pid, current->comm);
show_free_areas(0);
return -ENOMEM;
diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index 533fa60c9ac1..7d9a4ef0a078 100644
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -1664,7 +1664,7 @@ void throttle_vm_writeout(gfp_t gfp_mask)
/*
* sysctl handler for /proc/sys/vm/dirty_writeback_centisecs
*/
-int dirty_writeback_centisecs_handler(ctl_table *table, int write,
+int dirty_writeback_centisecs_handler(struct ctl_table *table, int write,
void __user *buffer, size_t *length, loff_t *ppos)
{
proc_dointvec(table, write, buffer, length, ppos);
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index a59bdb653958..4f59fa29eda8 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -3389,7 +3389,7 @@ early_param("numa_zonelist_order", setup_numa_zonelist_order);
/*
* sysctl handler for numa_zonelist_order
*/
-int numa_zonelist_order_handler(ctl_table *table, int write,
+int numa_zonelist_order_handler(struct ctl_table *table, int write,
void __user *buffer, size_t *length,
loff_t *ppos)
{
@@ -5805,7 +5805,7 @@ module_init(init_per_zone_wmark_min)
* that we can call two helper functions whenever min_free_kbytes
* changes.
*/
-int min_free_kbytes_sysctl_handler(ctl_table *table, int write,
+int min_free_kbytes_sysctl_handler(struct ctl_table *table, int write,
void __user *buffer, size_t *length, loff_t *ppos)
{
int rc;
@@ -5822,7 +5822,7 @@ int min_free_kbytes_sysctl_handler(ctl_table *table, int write,
}
#ifdef CONFIG_NUMA
-int sysctl_min_unmapped_ratio_sysctl_handler(ctl_table *table, int write,
+int sysctl_min_unmapped_ratio_sysctl_handler(struct ctl_table *table, int write,
void __user *buffer, size_t *length, loff_t *ppos)
{
struct zone *zone;
@@ -5838,7 +5838,7 @@ int sysctl_min_unmapped_ratio_sysctl_handler(ctl_table *table, int write,
return 0;
}
-int sysctl_min_slab_ratio_sysctl_handler(ctl_table *table, int write,
+int sysctl_min_slab_ratio_sysctl_handler(struct ctl_table *table, int write,
void __user *buffer, size_t *length, loff_t *ppos)
{
struct zone *zone;
@@ -5864,7 +5864,7 @@ int sysctl_min_slab_ratio_sysctl_handler(ctl_table *table, int write,
* minimum watermarks. The lowmem reserve ratio can only make sense
* if in function of the boot time zone sizes.
*/
-int lowmem_reserve_ratio_sysctl_handler(ctl_table *table, int write,
+int lowmem_reserve_ratio_sysctl_handler(struct ctl_table *table, int write,
void __user *buffer, size_t *length, loff_t *ppos)
{
proc_dointvec_minmax(table, write, buffer, length, ppos);
@@ -5877,7 +5877,7 @@ int lowmem_reserve_ratio_sysctl_handler(ctl_table *table, int write,
* cpu. It is the fraction of total pages in each zone that a hot per cpu
* pagelist can have before it gets flushed back to buddy allocator.
*/
-int percpu_pagelist_fraction_sysctl_handler(ctl_table *table, int write,
+int percpu_pagelist_fraction_sysctl_handler(struct ctl_table *table, int write,
void __user *buffer, size_t *length, loff_t *ppos)
{
struct zone *zone;
diff --git a/mm/slub.c b/mm/slub.c
index fdf0fe4da9a9..b2b047327d76 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -1726,7 +1726,7 @@ static void *get_partial(struct kmem_cache *s, gfp_t flags, int node,
struct kmem_cache_cpu *c)
{
void *object;
- int searchnode = (node == NUMA_NO_NODE) ? numa_node_id() : node;
+ int searchnode = (node == NUMA_NO_NODE) ? numa_mem_id() : node;
object = get_partial_node(s, get_node(s, searchnode), c, flags);
if (object || node != NUMA_NO_NODE)
diff --git a/mm/vmscan.c b/mm/vmscan.c
index 9149444f947d..71f23c0c1090 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -11,6 +11,8 @@
* Multiqueue VM started 5.8.00, Rik van Riel.
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/mm.h>
#include <linux/module.h>
#include <linux/gfp.h>
@@ -43,6 +45,7 @@
#include <linux/sysctl.h>
#include <linux/oom.h>
#include <linux/prefetch.h>
+#include <linux/printk.h>
#include <asm/tlbflush.h>
#include <asm/div64.h>
@@ -83,6 +86,9 @@ struct scan_control {
/* Scan (total_size >> priority) pages at once */
int priority;
+ /* anon vs. file LRUs scanning "ratio" */
+ int swappiness;
+
/*
* The memory cgroup that hit its limit and as a result is the
* primary target of this reclaim invocation.
@@ -477,7 +483,7 @@ static pageout_t pageout(struct page *page, struct address_space *mapping,
if (page_has_private(page)) {
if (try_to_free_buffers(page)) {
ClearPageDirty(page);
- printk("%s: orphaned page\n", __func__);
+ pr_info("%s: orphaned page\n", __func__);
return PAGE_CLEAN;
}
}
@@ -1845,13 +1851,6 @@ static unsigned long shrink_list(enum lru_list lru, unsigned long nr_to_scan,
return shrink_inactive_list(nr_to_scan, lruvec, sc, lru);
}
-static int vmscan_swappiness(struct scan_control *sc)
-{
- if (global_reclaim(sc))
- return vm_swappiness;
- return mem_cgroup_swappiness(sc->target_mem_cgroup);
-}
-
enum scan_balance {
SCAN_EQUAL,
SCAN_FRACT,
@@ -1912,7 +1911,7 @@ static void get_scan_count(struct lruvec *lruvec, struct scan_control *sc,
* using the memory controller's swap limit feature would be
* too expensive.
*/
- if (!global_reclaim(sc) && !vmscan_swappiness(sc)) {
+ if (!global_reclaim(sc) && !sc->swappiness) {
scan_balance = SCAN_FILE;
goto out;
}
@@ -1922,7 +1921,7 @@ static void get_scan_count(struct lruvec *lruvec, struct scan_control *sc,
* system is close to OOM, scan both anon and file equally
* (unless the swappiness setting disagrees with swapping).
*/
- if (!sc->priority && vmscan_swappiness(sc)) {
+ if (!sc->priority && sc->swappiness) {
scan_balance = SCAN_EQUAL;
goto out;
}
@@ -1965,7 +1964,7 @@ static void get_scan_count(struct lruvec *lruvec, struct scan_control *sc,
* With swappiness at 100, anonymous and file have the same priority.
* This scanning priority is essentially the inverse of IO cost.
*/
- anon_prio = vmscan_swappiness(sc);
+ anon_prio = sc->swappiness;
file_prio = 200 - anon_prio;
/*
@@ -2265,6 +2264,7 @@ static void shrink_zone(struct zone *zone, struct scan_control *sc)
lruvec = mem_cgroup_zone_lruvec(zone, memcg);
+ sc->swappiness = mem_cgroup_swappiness(memcg);
shrink_lruvec(lruvec, sc);
/*
@@ -2731,6 +2731,7 @@ unsigned long mem_cgroup_shrink_node_zone(struct mem_cgroup *memcg,
.may_swap = !noswap,
.order = 0,
.priority = 0,
+ .swappiness = mem_cgroup_swappiness(memcg),
.target_mem_cgroup = memcg,
};
struct lruvec *lruvec = mem_cgroup_zone_lruvec(zone, memcg);
@@ -3372,7 +3373,10 @@ static int kswapd(void *p)
}
}
+ tsk->flags &= ~(PF_MEMALLOC | PF_SWAPWRITE | PF_KSWAPD);
current->reclaim_state = NULL;
+ lockdep_clear_current_reclaim_state();
+
return 0;
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-02 22:08:46 +0000