Kirill A. Shutemov
f627c2f537
memcg: adjust to support new THP refcounting ...
As with rmap, with new refcounting we cannot rely on PageTransHuge() to
check if we need to charge size of huge page form the cgroup. We need
to get information from caller to know whether it was mapped with PMD or
PTE.
We do uncharge when last reference on the page gone. At that point if
we see PageTransHuge() it means we need to unchange whole huge page.
The tricky part is partial unmap -- when we try to unmap part of huge
page. We don't do a special handing of this situation, meaning we don't
uncharge the part of huge page unless last user is gone or
split_huge_page() is triggered. In case of cgroup memory pressure
happens the partial unmapped page will be split through shrinker. This
should be good enough.
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Tested-by: Sasha Levin <sasha.levin@oracle.com>
Tested-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Acked-by: Jerome Marchand <jmarchan@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Rik van Riel <riel@redhat.com>
Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Steve Capper <steve.capper@linaro.org>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Christoph Lameter <cl@linux.com>
Cc: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-01-15 17:56:32 -08:00
net: bpf: reject invalid shifts
2016-01-12 17:06:53 -05:00
module: use a structure to encapsulate layout.
2015-12-04 22:46:25 +01:00
memcg: adjust to support new THP refcounting
2016-01-15 17:56:32 -08:00
gcov: use within_module() helper.
2015-12-04 22:46:25 +01:00
Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2016-01-11 18:28:06 -08:00
livepatch: Cleanup module page permission changes
2015-12-04 22:51:07 +01:00
Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2016-01-11 14:18:38 -08:00
PM / sleep: Add support for read-only sysfs attributes
2016-01-04 22:28:59 +01:00
printk: prevent userland from spoofing kernel messages
2015-11-06 17:50:42 -08:00
Merge branches 'doc.2015.12.05a', 'exp.2015.12.07a', 'fixes.2015.12.07a', 'list.2015.12.04b' and 'torture.2015.12.05a' into HEAD
2015-12-07 17:02:54 -08:00
vmstat: make vmstat_updater deferrable again and shut down on idle
2016-01-14 16:00:49 -08:00
Merge branch 'for-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq
2016-01-11 18:53:13 -08:00
Not much new with tracing for this release. Mostly just clean ups and
2016-01-12 20:04:15 -08:00
certs: add .gitignore to stop git nagging about x509_certificate_list
2015-10-21 15:18:35 +01:00
mm, page_alloc: distinguish between being unable to sleep, unwilling to sleep and avoiding waking kswapd
2015-11-06 17:50:42 -08:00
audit: audit_tree_match can be boolean
2015-11-04 08:23:51 -05:00
audit: clean simple fsnotify implementation
2015-08-06 16:14:53 -04:00
audit: audit_tree_match can be boolean
2015-11-04 08:23:51 -05:00
Merge branch 'upstream' of git://git.infradead.org/users/pcmoore/audit
2015-09-08 13:34:59 -07:00
audit: fix comment block whitespace
2015-11-04 08:23:51 -05:00
Merge branch 'upstream' of git://git.infradead.org/users/pcmoore/audit
2015-09-08 13:34:59 -07:00
Merge branch 'for-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
2016-01-12 19:20:32 -08:00
cgroup: kill cgrp_ss_priv[CGROUP_CANFORK_COUNT] and friends
2015-12-03 10:24:08 -05:00
cgroup_pids: fix a typo.
2015-12-14 14:54:37 -05:00
context_tracking: Switch to new static_branch API
2015-11-24 09:56:43 +01:00
Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2015-11-03 18:03:50 -08:00
kernel/cpu_pm: fix cpu_cluster_pm_exit comment
2015-09-03 02:42:20 +02:00
Merge branch 'for-4.4-fixes' into for-4.5
2015-12-03 10:22:52 -05:00
kmemcg: account certain kmem allocations to memcg
2016-01-14 16:00:49 -08:00
kmemcg: account certain kmem allocations to memcg
2016-01-14 16:00:49 -08:00
Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2015-11-03 18:03:50 -08:00
kernel/extable.c: remove duplicated include
2015-09-10 13:29:01 -07:00
mm: rework virtual memory accounting
2016-01-14 16:00:49 -08:00
futex: Allow FUTEX_CLOCK_REALTIME with FUTEX_WAIT op
2015-12-20 12:43:25 +01:00
treewide: Remove old email address
2015-11-23 09:44:58 +01:00
treewide: Remove old email address
2015-11-23 09:44:58 +01:00
kexec: use file name as the output message prefix
2015-11-06 17:50:42 -08:00
kexec: Fix race between panic() and crash_kexec()
2015-12-19 11:07:01 +01:00
kexec: use file name as the output message prefix
2015-11-06 17:50:42 -08:00
kexec: split kexec_file syscall code to kexec_file.c
2015-09-10 13:29:01 -07:00
kmod: don't run async usermode helper as a child of kworker thread
2015-10-23 17:55:10 +09:00
perf/x86/hw_breakpoints: Disallow kernel breakpoints unless kprobe-safe
2015-08-04 10:16:54 +02:00
rcu: Remove TINY_RCU bloat from pointless boot parameters
2015-12-07 16:59:37 -08:00
kernel/kthread.c:kthread_create_on_node(): clarify documentation
2015-09-04 16:54:41 -07:00
sys_membarrier(): system-wide memory barrier (generic, x86)
2015-09-11 15:21:34 -07:00
sys_membarrier(): system-wide memory barrier (generic, x86)
2015-09-11 15:21:34 -07:00
libnvdimm for 4.4:
2015-11-10 12:07:22 -08:00
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/livepatching
2016-01-14 16:38:02 -08:00
KEYS: Merge the type-specific data with the payload data
2015-10-21 15:18:36 +01:00
Merge branch 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2015-09-01 08:40:25 -07:00
kexec: Fix race between panic() and crash_kexec()
2015-12-19 11:07:01 +01:00
Nothing exciting, minor tweaks and cleanups.
2015-11-09 15:53:39 -08:00
kmemcg: account certain kmem allocations to memcg
2016-01-14 16:00:49 -08:00
mm: rename alloc_pages_exact_node() to __alloc_pages_node()
2015-09-08 15:35:28 -07:00
seccomp, ptrace: add support for dumping seccomp filters
2015-10-27 19:55:13 -07:00
kexec: split kexec_load syscall from kexec core code
2015-09-10 13:29:01 -07:00
kernel/relay.c: use kvfree() in relay_free_page_array()
2015-06-30 19:44:59 -07:00
restrict /dev/mem to idle io memory ranges
2016-01-09 06:30:49 -08:00
seccomp, ptrace: add support for dumping seccomp filters
2015-10-27 19:55:13 -07:00
kernel/signal.c: unexport sigsuspend()
2015-11-20 16:17:32 -08:00
mm, page_alloc: distinguish between being unable to sleep, unwilling to sleep and avoiding waking kswapd
2015-11-06 17:50:42 -08:00
stop_machine: Kill smp_hotplug_thread->pre_unpark, introduce stop_machine_unpark()
2015-10-20 10:23:55 +02:00
Merge branch 'sched/urgent' into sched/core, to pick up fixes before merging new patches
2016-01-06 11:02:29 +01:00
pidns: fix set/getpriority and ioprio_set/get in PRIO_USER mode
2015-11-06 17:50:42 -08:00
vfs: add copy_file_range syscall and vfs helper
2015-12-01 14:00:53 -05:00
mm: mmap: add new /proc tunable for mmap_base ASLR
2016-01-14 16:00:49 -08:00
task_work: remove fifo ordering guarantee
2015-09-05 13:46:58 -07:00
torture: Consolidate cond_resched_rcu_qs() into stutter_wait()
2015-10-06 11:25:01 -07:00
tracepoint: Give priority to probes of tracepoints
2015-10-25 21:33:54 -04:00
kernel/*: switch to memdup_user_nul()
2016-01-04 10:27:55 -05:00
Merge branch 'for-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq
2016-01-11 18:53:13 -08:00
workqueue: simplify the apply_workqueue_attrs_locked()
2016-01-07 11:04:34 -05:00
f627c2f537