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authorLinus Torvalds <torvalds@linux-foundation.org>2012-12-18 15:08:12 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2012-12-18 15:08:12 -0800
commit673ab8783b596cda5b616b317b1a1b47480c66fd (patch)
treed3fc9bb4279720c53d0dc69c2a34c40635cf05f3 /kernel
parentd7b96ca5d08a8f2f836feb2b3b3bd721d2837a8e (diff)
parent3cf23841b4b76eb94d3f8d0fb3627690e4431413 (diff)
downloadlinaro-lsk-673ab8783b596cda5b616b317b1a1b47480c66fd.tar.gz
Merge branch 'akpm' (more patches from Andrew)
Merge patches from Andrew Morton: "Most of the rest of MM, plus a few dribs and drabs. I still have quite a few irritating patches left around: ones with dubious testing results, lack of review, ones which should have gone via maintainer trees but the maintainers are slack, etc. I need to be more activist in getting these things wrapped up outside the merge window, but they're such a PITA." * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (48 commits) mm/vmscan.c: avoid possible deadlock caused by too_many_isolated() vmscan: comment too_many_isolated() mm/kmemleak.c: remove obsolete simple_strtoul mm/memory_hotplug.c: improve comments mm/hugetlb: create hugetlb cgroup file in hugetlb_init mm/mprotect.c: coding-style cleanups Documentation: ABI: /sys/devices/system/node/ slub: drop mutex before deleting sysfs entry memcg: add comments clarifying aspects of cache attribute propagation kmem: add slab-specific documentation about the kmem controller slub: slub-specific propagation changes slab: propagate tunable values memcg: aggregate memcg cache values in slabinfo memcg/sl[au]b: shrink dead caches memcg/sl[au]b: track all the memcg children of a kmem_cache memcg: destroy memcg caches sl[au]b: allocate objects from memcg cache sl[au]b: always get the cache from its page in kmem_cache_free() memcg: skip memcg kmem allocations in specified code regions memcg: infrastructure to match an allocation to the right cache ...
Diffstat (limited to 'kernel')
-rw-r--r--kernel/fork.c4
-rw-r--r--kernel/irq/manage.c2
-rw-r--r--kernel/res_counter.c20
3 files changed, 16 insertions, 10 deletions
diff --git a/kernel/fork.c b/kernel/fork.c
index c36c4e301ef..85f6d536608 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -146,7 +146,7 @@ void __weak arch_release_thread_info(struct thread_info *ti)
static struct thread_info *alloc_thread_info_node(struct task_struct *tsk,
int node)
{
- struct page *page = alloc_pages_node(node, THREADINFO_GFP,
+ struct page *page = alloc_pages_node(node, THREADINFO_GFP_ACCOUNTED,
THREAD_SIZE_ORDER);
return page ? page_address(page) : NULL;
@@ -154,7 +154,7 @@ static struct thread_info *alloc_thread_info_node(struct task_struct *tsk,
static inline void free_thread_info(struct thread_info *ti)
{
- free_pages((unsigned long)ti, THREAD_SIZE_ORDER);
+ free_memcg_kmem_pages((unsigned long)ti, THREAD_SIZE_ORDER);
}
# else
static struct kmem_cache *thread_info_cache;
diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index 35c70c9e24d..e49a288fa47 100644
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -818,7 +818,7 @@ static void irq_thread_dtor(struct callback_head *unused)
action = kthread_data(tsk);
pr_err("exiting task \"%s\" (%d) is an active IRQ thread (irq %d)\n",
- tsk->comm ? tsk->comm : "", tsk->pid, action->irq);
+ tsk->comm, tsk->pid, action->irq);
desc = irq_to_desc(action->irq);
diff --git a/kernel/res_counter.c b/kernel/res_counter.c
index 3920d593e63..ff55247e704 100644
--- a/kernel/res_counter.c
+++ b/kernel/res_counter.c
@@ -86,33 +86,39 @@ int res_counter_charge_nofail(struct res_counter *counter, unsigned long val,
return __res_counter_charge(counter, val, limit_fail_at, true);
}
-void res_counter_uncharge_locked(struct res_counter *counter, unsigned long val)
+u64 res_counter_uncharge_locked(struct res_counter *counter, unsigned long val)
{
if (WARN_ON(counter->usage < val))
val = counter->usage;
counter->usage -= val;
+ return counter->usage;
}
-void res_counter_uncharge_until(struct res_counter *counter,
- struct res_counter *top,
- unsigned long val)
+u64 res_counter_uncharge_until(struct res_counter *counter,
+ struct res_counter *top,
+ unsigned long val)
{
unsigned long flags;
struct res_counter *c;
+ u64 ret = 0;
local_irq_save(flags);
for (c = counter; c != top; c = c->parent) {
+ u64 r;
spin_lock(&c->lock);
- res_counter_uncharge_locked(c, val);
+ r = res_counter_uncharge_locked(c, val);
+ if (c == counter)
+ ret = r;
spin_unlock(&c->lock);
}
local_irq_restore(flags);
+ return ret;
}
-void res_counter_uncharge(struct res_counter *counter, unsigned long val)
+u64 res_counter_uncharge(struct res_counter *counter, unsigned long val)
{
- res_counter_uncharge_until(counter, NULL, val);
+ return res_counter_uncharge_until(counter, NULL, val);
}
static inline unsigned long long *