Mel Gorman
f77cf4e4cc
mm, page_alloc: delete the zonelist_cache ...
The zonelist cache (zlc) was introduced to skip over zones that were
recently known to be full. This avoided expensive operations such as the
cpuset checks, watermark calculations and zone_reclaim. The situation
today is different and the complexity of zlc is harder to justify.
1) The cpuset checks are no-ops unless a cpuset is active and in general
are a lot cheaper.
2) zone_reclaim is now disabled by default and I suspect that was a large
source of the cost that zlc wanted to avoid. When it is enabled, it's
known to be a major source of stalling when nodes fill up and it's
unwise to hit every other user with the overhead.
3) Watermark checks are expensive to calculate for high-order
allocation requests. Later patches in this series will reduce the cost
of the watermark checking.
4) The most important issue is that in the current implementation it
is possible for a failed THP allocation to mark a zone full for order-0
allocations and cause a fallback to remote nodes.
The last issue could be addressed with additional complexity but as the
benefit of zlc is questionable, it is better to remove it. If stalls due
to zone_reclaim are ever reported then an alternative would be to
introduce deferring logic based on a timeout inside zone_reclaim itself
and leave the page allocator fast paths alone.
The impact on page-allocator microbenchmarks is negligible as they don't
hit the paths where the zlc comes into play. Most page-reclaim related
workloads showed no noticeable difference as a result of the removal.
The impact was noticeable in a workload called "stutter". One part uses a
lot of anonymous memory, a second measures mmap latency and a third copies
a large file. In an ideal world the latency application would not notice
the mmap latency. On a 2-node machine the results of this patch are
stutter
4.3.0-rc1 4.3.0-rc1
baseline nozlc-v4
Min mmap 20.9243 ( 0.00%) 20.7716 ( 0.73%)
1st-qrtle mmap 22.0612 ( 0.00%) 22.0680 ( -0.03%)
2nd-qrtle mmap 22.3291 ( 0.00%) 22.3809 ( -0.23%)
3rd-qrtle mmap 25.2244 ( 0.00%) 25.2396 ( -0.06%)
Max-90% mmap 48.0995 ( 0.00%) 28.3713 ( 41.02%)
Max-93% mmap 52.5557 ( 0.00%) 36.0170 ( 31.47%)
Max-95% mmap 55.8173 ( 0.00%) 47.3163 ( 15.23%)
Max-99% mmap 67.3781 ( 0.00%) 70.1140 ( -4.06%)
Max mmap 24447.6375 ( 0.00%) 12915.1356 ( 47.17%)
Mean mmap 33.7883 ( 0.00%) 27.7944 ( 17.74%)
Best99%Mean mmap 27.7825 ( 0.00%) 25.2767 ( 9.02%)
Best95%Mean mmap 26.3912 ( 0.00%) 23.7994 ( 9.82%)
Best90%Mean mmap 24.9886 ( 0.00%) 23.2251 ( 7.06%)
Best50%Mean mmap 22.0157 ( 0.00%) 22.0261 ( -0.05%)
Best10%Mean mmap 21.6705 ( 0.00%) 21.6083 ( 0.29%)
Best5%Mean mmap 21.5581 ( 0.00%) 21.4611 ( 0.45%)
Best1%Mean mmap 21.3079 ( 0.00%) 21.1631 ( 0.68%)
Note that the maximum stall latency went from 24 seconds to 12 which is
still bad but an improvement. The milage varies considerably 2-node
machine on an earlier test went from 494 seconds to 47 seconds and a
4-node machine that tested an earlier version of this patch went from a
worst case stall time of 6 seconds to 67ms. The nature of the benchmark
is inherently unpredictable as it is hammering the system and the milage
will vary between machines.
There is a secondary impact with potentially more direct reclaim because
zones are now being considered instead of being skipped by zlc. In this
particular test run it did not occur so will not be described. However,
in at least one test the following was observed
1. Direct reclaim rates were higher. This was likely due to direct reclaim
being entered instead of the zlc disabling a zone and busy looping.
Busy looping may have the effect of allowing kswapd to make more
progress and in some cases may be better overall. If this is found then
the correct action is to put direct reclaimers to sleep on a waitqueue
and allow kswapd make forward progress. Busy looping on the zlc is even
worse than when the allocator used to blindly call congestion_wait().
2. There was higher swap activity as direct reclaim was active.
3. Direct reclaim efficiency was lower. This is related to 1 as more
scanning activity also encountered more pages that could not be
immediately reclaimed
In that case, the direct page scan and reclaim rates are noticeable but
it is not considered a problem for a few reasons
1. The test is primarily concerned with latency. The mmap attempts are also
faulted which means there are THP allocation requests. The ZLC could
cause zones to be disabled causing the process to busy loop instead
of reclaiming. This looks like elevated direct reclaim activity but
it's the correct action to take based on what processes requested.
2. The test hammers reclaim and compaction heavily. The number of successful
THP faults is highly variable but affects the reclaim stats. It's not a
realistic or reasonable measure of page reclaim activity.
3. No other page-reclaim intensive workload that was tested showed a problem.
4. If a workload is identified that benefitted from the busy looping then it
should be fixed by having direct reclaimers sleep on a wait queue until
woken by kswapd instead of busy looping. We had this class of problem before
when congestion_waits() with a fixed timeout was a brain damaged decision
but happened to benefit some workloads.
If a workload is identified that relied on the zlc to busy loop then it
should be fixed correctly and have a direct reclaimer sleep on a waitqueue
until woken by kswapd.
Signed-off-by: Mel Gorman <mgorman@techsingularity.net>
Acked-by: David Rientjes <rientjes@google.com>
Acked-by: Christoph Lameter <cl@linux.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Acked-by: Michal Hocko <mhocko@suse.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Vitaly Wool <vitalywool@gmail.com>
Cc: Rik van Riel <riel@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-11-06 17:50:42 -08:00
ARM: 8446/1: amba: Remove unused callbacks for legacy system PM
2015-10-19 17:08:32 +01:00
brcmfmac: Add support for the BCM4365 and BCM4366 PCIE devices.
2015-09-29 10:56:05 +03:00
net/can: can_dropped_invalid_skb can be boolean
2015-10-09 07:49:01 -07:00
libceph: advertise support for keepalive2
2015-09-17 20:14:27 +03:00
clk: at91: add generated clock driver
2015-10-01 12:48:11 -07:00
dmaengine: hsu: remove platform data
2015-10-17 21:22:08 -07:00
extcon: gpio: Fix minor coding style and remove the unused fields.
2015-09-30 19:22:50 +09:00
add FPGA manager core
2015-10-07 18:08:15 +01:00
powerpc/fsl: Move fsl_guts.h out of arch/powerpc
2015-10-21 18:05:50 -05:00
gpiolib: provide generic request/free implementations
2015-10-16 22:11:16 +02:00
iio: Support triggered events
2015-08-27 20:47:09 +01:00
Power management and ACPI updates for v4.4-rc1
2015-11-04 18:10:13 -08:00
- New Device Support
2015-11-06 10:23:50 -08:00
net/mlx4_core: Replace VF zero mac with random mac in mlx4_core
2015-10-14 19:14:44 -07:00
net/mlx5_core: Wait for FW readiness on startup
2015-10-14 19:14:43 -07:00
mmc: mmc: extend the mmc_send_tuning()
2015-10-27 10:38:41 +01:00
net/nfnetlink: lockdep_nfnl_is_held can be boolean
2015-10-09 07:49:00 -07:00
inet netfilter: Remove hook from ip6t_do_table, arp_do_table, ipt_do_table
2015-09-18 21:57:43 +02:00
netfilter: ebtables: Simplify the arguments to ebt_do_table
2015-09-18 21:57:35 +02:00
inet netfilter: Remove hook from ip6t_do_table, arp_do_table, ipt_do_table
2015-09-18 21:57:43 +02:00
inet netfilter: Remove hook from ip6t_do_table, arp_do_table, ipt_do_table
2015-09-18 21:57:43 +02:00
drivers/pinctrl: Add the concept of an "init" state
2015-10-27 11:24:23 +01:00
TTY/Serial driver patches for 4.4-rc1
2015-11-04 21:35:12 -08:00
power: bq27xxx_battery: Add support for additional bq27xxx family devices
2015-09-23 17:15:27 +02:00
qed: Add statistics support
2015-10-27 19:34:54 -07:00
regulator: introduce min_dropout_uV
2015-10-16 17:57:33 +01:00
sched/deadline: Unify dl_time_before() usage
2015-09-23 09:51:25 +02:00
ARM: SoC driver updates for v4.3
2015-09-01 13:00:04 -07:00
Merge remote-tracking branches 'spi/topic/omap-100k', 'spi/topic/omap-uwire', 'spi/topic/owner', 'spi/topic/pxa' and 'spi/topic/pxa2xx' into spi-next
2015-11-04 11:02:12 +00:00
SUNRPC: Ensure that we wait for connections to complete before retrying
2015-09-17 18:01:28 -04:00
USB patches for 4.4-rc1
2015-11-04 21:26:27 -08:00
Power management and ACPI updates for v4.4-rc1
2015-11-04 18:10:13 -08:00
atomic: remove all traces of READ_ONCE_CTRL() and atomic*_read_ctrl()
2015-11-03 17:22:17 -08:00
audit: audit_string_contains_control can be boolean
2015-11-04 08:23:51 -05:00
writeback: bdi_writeback iteration must not skip dying ones
2015-10-12 10:31:12 -06:00
Merge branch 'for-4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
2015-11-05 14:51:32 -08:00
blkcg: fix incorrect read/write sync/async stat accounting
2015-10-27 15:04:56 +09:00
block: generic request_queue reference counting
2015-10-21 14:43:41 -06:00
Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
2015-09-03 12:28:30 -07:00
Merge branch 'for-4.4/reservations' of git://git.kernel.dk/linux-block
2015-11-04 21:01:27 -08:00
bpf: add support for persistent maps/progs
2015-11-02 22:48:39 -05:00
net: phy: Broadcom Cygnus internal Etherent PHY driver
2015-10-08 04:45:52 -07:00
cgroup: add cgroup_subsys->free() method and use it to fix pids controller
2015-10-15 16:41:53 -04:00
cgroup: keep zombies associated with their original cgroups
2015-10-15 16:41:53 -04:00
Merge branch 'for-4.3/blkcg' of git://git.kernel.dk/linux-block
2015-09-10 18:56:14 -07:00
clk: Add clk_hw_is_enabled() for use by clk providers
2015-10-26 12:36:55 -07:00
clockevents: Remove unused set_mode() callback
2015-09-14 11:00:55 +02:00
clocksource: cosmetic: Drop OF 'dependency' from symbols
2015-10-01 02:18:39 +02:00
mm: cma: fix incorrect type conversion for size during dma allocation
2015-10-23 17:55:10 +09:00
mm, compaction: distinguish contended status in tracepoints
2015-11-05 19:34:48 -08:00
include/linux/compiler-gcc.h: hide assume_aligned attribute from sparse
2015-11-05 19:34:48 -08:00
compiler.h: add support for function attribute assume_aligned
2015-11-05 19:34:48 -08:00
coresight: fixing typographical error
2015-10-07 17:54:09 +01:00
cpu: Remove try_get_online_cpus()
2015-10-07 16:02:49 -07:00
cpufreq: create cpu/cpufreq/policyX directories
2015-10-28 09:21:12 +01:00
cpuidle/coupled: Remove cpuidle_device::safe_state_index
2015-08-28 15:14:54 +02:00
mm, page_alloc: remove unnecessary taking of a seqlock when cpusets are disabled
2015-11-06 17:50:42 -08:00
capabilities: ambient capabilities
2015-09-04 16:54:41 -07:00
dax: add huge page fault support
2015-09-08 15:35:28 -07:00
net/dccp: dccp_list_has_service can be boolean
2015-10-09 07:49:02 -07:00
debugfs: Add debugfs_create_ulong()
2015-10-18 10:14:39 -07:00
PM / devfreq: comments for get_dev_status usage updated
2015-09-11 14:23:29 +09:00
dm: refactor ioctl handling
2015-10-31 19:05:59 -04:00
Power management and ACPI material for v4.3-rc1
2015-09-01 19:45:46 -07:00
mm: cma: fix incorrect type conversion for size during dma allocation
2015-10-23 17:55:10 +09:00
iommu: Implement common IOMMU ops for DMA mapping
2015-10-15 16:41:04 +02:00
iommu/vt-d: Implement deferred invalidate for SVM
2015-10-15 13:22:35 +01:00
dma: Add support to program MIC x100 status descriptiors
2015-10-04 12:46:06 +01:00
mm: add dma_pool_zalloc() call to DMA API
2015-09-08 15:35:28 -07:00
driver core update for 4.4-rc1
2015-11-04 21:50:37 -08:00
efi: Use correct type for struct efi_memory_map::phys_map
2015-10-28 12:28:06 +01:00
extcon: Modify the id and name of external connector
2015-10-16 08:30:09 +09:00
f2fs: add annotation for space utilization of regular/inline dentry
2015-08-21 22:45:13 -07:00
debugfs: Pass bool pointer to debugfs_create_bool()
2015-10-04 11:36:07 +01:00
fb.h: Provide alternate screen_base pointer
2015-10-13 10:51:30 -07:00
vfs: Fix pathological performance case for __alloc_fd()
2015-10-31 16:12:10 -07:00
bpf: fix cb access in socket filter programs
2015-10-11 04:40:05 -07:00
Merge branch 'akpm' (patches from Andrew)
2015-11-05 23:10:54 -08:00
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2015-09-05 20:34:28 -07:00
Power management and ACPI updates for v4.4-rc1
2015-11-04 18:10:13 -08:00
genalloc: add support of multiple gen_pools per device
2015-09-04 16:54:41 -07:00
net/netlink: lockdep_genl_is_held can be boolean
2015-10-09 07:48:59 -07:00
block: move blk_integrity to request_queue
2015-10-21 14:43:42 -06:00
mm, page_alloc: rename __GFP_WAIT to __GFP_RECLAIM
2015-11-06 17:50:42 -08:00
dax: don't use set_huge_zero_page()
2015-09-08 15:35:28 -07:00
mm: hugetlb: proc: add HugetlbPages field to /proc/PID/status
2015-11-05 19:34:48 -08:00
cgroup: replace cgroup_subsys->disabled tests with cgroup_subsys_enabled()
2015-09-18 11:56:28 -04:00
drivers/hv: share Hyper-V SynIC constants with userspace
2015-11-04 16:24:33 +01:00
i2c: core: Add support for best effort block read emulation
2015-08-24 14:05:19 +02:00
wireless: add WNM action frame categories
2015-10-13 10:34:46 +02:00
ieee802154: remove unnecessary includes
2015-09-24 20:42:37 +02:00
bridge: define some min/max/default ageing time constants
2015-09-23 14:35:58 -07:00
if_link: Add control trust VF
2015-10-23 05:44:28 -07:00
net/ipv4: Pass proto as u8 instead of u16 in ip_check_mc_rcu
2015-09-29 16:27:47 -07:00
net/inetdevice: bad_mask can be boolean
2015-10-09 07:49:05 -07:00
Merge branch 'for-4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
2015-11-05 14:51:32 -08:00
iommu/vt-d: Implement SVM_FLAG_PRIVATE_PASID to allocate unique PASIDs
2015-10-15 15:35:32 +01:00
iommu/vt-d: Expose struct svm_dev_ops without CONFIG_INTEL_IOMMU_SVM
2015-10-27 08:36:08 +09:00
genirq: Handle force threading of irqs with primary and thread handler
2015-09-22 12:39:57 +02:00
add devm_memremap_pages
2015-08-27 19:40:58 -04:00
iommu-common: Fix error code used in iommu_tbl_range_{alloc,free}().
2015-11-04 11:30:57 -08:00
iommu: Add generic_device_group() function
2015-10-22 00:00:49 +02:00
ACPI/PCI: Enhance ACPI core to support sparse IO space
2015-10-16 22:18:51 +02:00
iommu: iova: Move iova cache management to the iova library
2015-10-04 12:46:06 +01:00
ipmi: Don't flush messages in sender() in run-to-completion mode
2015-09-03 15:02:28 -05:00
ipv6: inet6_sk() should use sk_fullsock()
2015-10-05 02:45:25 -07:00
genirq: Add flag to force mask in disable_irq[_nosync]()
2015-10-11 11:33:42 +02:00
virt: IRQ bypass manager
2015-10-01 15:06:43 +02:00
irqchip / ACPI: Add probing infrastructure for ACPI-based irqchips
2015-10-01 02:18:38 +02:00
genirq: Remove irq argument from irq flow handlers
2015-09-16 15:47:51 +02:00
irqdomain: Documentation updates
2015-10-13 19:01:25 +02:00
genirq: Remove irq argument from irq flow handlers
2015-09-16 15:47:51 +02:00
Document that IRQ_NONE should be returned when IRQ not actually handled
2015-10-30 10:13:26 +01:00
Pretty much all bug fixes and clean ups for 4.3, after a lot of
2015-09-03 12:52:19 -07:00
Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2015-09-01 14:04:50 -07:00
Merge branch 'for-4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
2015-11-05 14:51:32 -08:00
x86/kasan, mm: Introduce generic kasan_populate_zero_shadow()
2015-08-22 14:54:55 +02:00
kexec: split kexec_load syscall from kexec core code
2015-09-10 13:29:01 -07:00
KEYS: Merge the type-specific data with the payload data
2015-10-21 15:18:36 +01:00
KEYS: Merge the type-specific data with the payload data
2015-10-21 15:18:36 +01:00
kmod: use system_unbound_wq instead of khelper
2015-09-10 13:29:01 -07:00
kobject: explain what kobject's sd field is
2015-10-04 11:46:16 +01:00
kernel/kthread.c:kthread_create_on_node(): clarify documentation
2015-09-04 16:54:41 -07:00
KVM: x86: move kvm_set_irq_inatomic to legacy device assignment
2015-11-04 16:24:36 +01:00
KVM: eventfd: add irq bypass consumer management
2015-10-01 15:06:46 +02:00
arcnet: com20020-pci: add led trigger support
2015-10-26 09:10:56 +01:00
ata: ahci: find eSATA ports and flag them as removable
2015-09-30 17:37:55 -04:00
libnvdimm, pmem: direct map legacy pmem by default
2015-08-28 23:40:05 -04:00
lightnvm: refactor phys addrs type to u64
2015-11-03 09:53:24 -07:00
rculist: Use WRITE_ONCE() when deleting from reader-visible list
2015-10-06 11:16:42 -07:00
rculist: Use WRITE_ONCE() when deleting from reader-visible list
2015-10-06 11:16:42 -07:00
rculist: Use WRITE_ONCE() when deleting from reader-visible list
2015-10-06 11:16:42 -07:00
mei: bus: use mei_cldev_ prefix for the API functions
2015-09-20 19:31:10 -07:00
mm/memblock: make memblock_remove_range() static
2015-11-05 19:34:48 -08:00
Merge branch 'akpm' (patches from Andrew)
2015-11-05 23:10:54 -08:00
mm: memory hotplug with an existing resource
2015-10-23 14:19:58 +01:00
misc: mic: Remove COSM functionality from the MIC card driver
2015-10-04 12:46:06 +01:00
add microchip LAN88xx phy driver
2015-09-09 17:19:14 -07:00
mm: introduce VM_LOCKONFAULT
2015-11-05 19:34:48 -08:00
mm: hugetlb: proc: add HugetlbPages field to /proc/PID/status
2015-11-05 19:34:48 -08:00
mm: introduce idle page tracking
2015-09-10 13:29:01 -07:00
mm, page_alloc: delete the zonelist_cache
2015-11-06 17:50:42 -08:00
mei: bus: add client protocol version to the device alias
2015-09-20 19:30:10 -07:00
lib/mpi: clean unused SHA1_DIGEST_LENGTH
2015-10-20 22:10:45 +08:00
PCI/MSI: Allow the MSI domain to be device-specific
2015-10-16 13:07:16 +01:00
tty: r3964: Replace/remove bogus tty lock use
2015-10-17 21:11:29 -07:00
net: move net_get_random_once to lib
2015-10-08 05:26:35 -07:00
net/core: fix for_each_netdev_feature
2015-11-03 11:29:57 -05:00
Merge branch 'parisc-4.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux
2015-11-04 11:30:22 -08:00
netfilter: turn NF_HOOK into an inline function
2015-10-16 18:45:36 +02:00
netfilter: Pass net into okfn
2015-09-17 17:18:37 -07:00
netfilter: Store net in nf_hook_state
2015-09-17 17:18:32 -07:00
ipv4: Pass struct net into ip_route_me_harder
2015-09-29 20:21:32 +02:00
ipv6: Pass struct net through ip6_fragment
2015-09-30 01:45:03 -05:00
netlink, mmap: fix edge-case leakages in nf queue zero-copy
2015-09-09 21:43:22 -07:00
NFS: Get suppattr_exclcreat when getting server capabilities
2015-08-27 19:45:27 -04:00
NFSv4: Express delegation limit in units of pages
2015-09-07 12:36:13 -04:00
kernel/watchdog.c: perform all-CPU backtrace in case of hard lockup
2015-11-05 19:34:48 -08:00
NTB: Fix documentation for ntb_peer_db_clear.
2015-09-07 15:17:09 -04:00
NTB: Add flow control to the ntb_netdev
2015-09-07 15:17:08 -04:00
nvme: include <linux/types.ĥ> in <linux/nvme.h>
2015-10-09 10:40:37 -06:00
device property: check fwnode type in to_of_node()
2015-08-26 01:46:39 +02:00
gpiolib: Add and use OF_GPIO_SINGLE_ENDED flag
2015-10-16 22:49:26 +02:00
of/irq: Use the msi-map property to provide device-specific MSI domain
2015-10-16 13:07:15 +01:00
of/platform: add function to populate default bus
2015-08-25 11:29:55 -05:00
PKCS#7: Add OIDs for sha224, sha284 and sha512 hash algos and use them
2015-09-01 09:59:20 +10:00
ARM: OMAP1: fix incorrect INT_DMA_LCD
2015-10-28 10:05:58 -07:00
once: make helper generic for calling functions once
2015-10-08 05:26:36 -07:00
mm, oom: add description of struct oom_control
2015-09-08 15:35:28 -07:00
mm: optimize PageHighMem() check
2015-11-05 19:34:48 -08:00
mm, page_isolation: make set/unset_migratetype_isolate() file-local
2015-09-08 15:35:28 -07:00
mm: page_counter: let page_counter_try_charge() return bool
2015-11-05 19:34:48 -08:00
mm: introduce idle page tracking
2015-09-10 13:29:01 -07:00
mm: introduce idle page tracking
2015-09-10 13:29:01 -07:00
PCI/ACPI: Add interface acpi_pci_root_create()
2015-10-16 22:18:51 +02:00
pci: mm: add pci_pool_zalloc() call
2015-09-08 15:35:28 -07:00
locking/percpu-rwsem: Make use of the rcu_sync infrastructure
2015-10-06 11:25:31 -07:00
perf/core: Drop PERF_EVENT_TXN
2015-09-13 11:27:30 +02:00
net: phy: Add nested variants of mdiobus read/write
2015-10-23 05:57:43 -07:00
phy: fixed_phy: Add gpio to determine link up/down.
2015-08-31 14:48:02 -07:00
driver-core: platform: Provide helpers for multi-driver modules
2015-10-05 05:02:40 +01:00
PM / PCI / ACPI: Kick devices that might have been reset by firmware
2015-10-14 02:17:34 +02:00
PM / Domains: Merge measurements for PM QoS device latencies
2015-10-28 04:33:04 +01:00
PM / OPP: Prefix exported opp routines with dev_pm_opp_
2015-09-15 02:03:16 +02:00
x86, pmem: clarify that ARCH_HAS_PMEM_API implies PMEM mapped WB
2015-08-27 19:40:59 -04:00
include/linux/poison.h: remove not-used poison pointer macros
2015-09-10 13:29:01 -07:00
ntp/pps: use y2038 safe types in pps_event_time
2015-10-01 09:59:16 -07:00
block: add an API for Persistent Reservations
2015-10-21 14:46:56 -06:00
sched/core: Kill PREEMPT_ACTIVE
2015-10-06 17:08:19 +02:00
hexdump: do not print debug dumps for !CONFIG_DEBUG
2015-09-10 13:29:01 -07:00
device property: Add fwnode_property_match_string()
2015-09-25 02:00:19 +02:00
pstore: add pstore unregister
2015-10-22 08:59:18 -07:00
ptp: Change ptp_class to a proper bitmask
2015-11-03 11:08:22 -05:00
spi: pxa2xx: Add support for Intel Broxton
2015-10-30 11:18:05 +09:00
random32: add prandom_init_once helper for own rngs
2015-10-08 05:26:38 -07:00
rcu_sync: Cleanup the CONFIG_PROVE_RCU checks
2015-10-06 11:25:45 -07:00
rculist: Make list_entry_rcu() use lockless_dereference()
2015-10-06 11:16:18 -07:00
rcu: Remove deprecated rcu_lockdep_assert()
2015-10-06 11:16:31 -07:00
rcu: Don't disable preemption for Tiny and Tree RCU readers
2015-10-06 11:08:23 -07:00
rcu: Use rcu_callback_t in call_rcu*() and friends
2015-10-06 11:08:05 -07:00
Merge remote-tracking branches 'regmap/topic/atomic', 'regmap/topic/debugfs' and 'regmap/topic/irq-hdr' into regmap-next
2015-10-12 19:25:07 +01:00
reset: Add (devm_)reset_control_get stub functions
2015-09-01 09:56:58 +02:00
mm: send one IPI per CPU to TLB flush all entries after unmapping pages
2015-09-04 16:54:41 -07:00
net/core: lockdep_rtnl_is_held can be boolean
2015-10-09 07:49:06 -07:00
lib: scatterlist: add sg splitting function
2015-08-24 14:28:01 -06:00
Merge branch 'akpm' (patches from Andrew)
2015-11-05 23:10:54 -08:00
misc: mic: SCIF RMA header file and IOCTL changes
2015-10-04 12:54:54 +01:00
seccomp, ptrace: add support for dumping seccomp filters
2015-10-27 19:55:13 -07:00
security: fix typo in security_task_prctl
2015-09-20 17:00:26 -07:00
fs/seq_file: convert int seq_vprint/seq_printf/etc... returns to void
2015-09-11 15:21:34 -07:00
mm, page_alloc: distinguish between being unable to sleep, unwilling to sleep and avoiding waking kswapd
2015-11-06 17:50:42 -08:00
slab: convert slab_is_available() to boolean
2015-11-05 19:34:48 -08:00
stop_machine: Kill smp_hotplug_thread->pre_unpark, introduce stop_machine_unpark()
2015-10-20 10:23:55 +02:00
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
spmi: Auto-populate driver.owner in spmi_driver_register()
2015-09-20 19:32:02 -07:00
rcu: Move preemption disabling out of __srcu_read_lock()
2015-10-06 11:15:43 -07:00
stm class: Introduce an abstraction for System Trace Module devices
2015-10-04 20:28:58 +01:00
stop_machine: Kill smp_hotplug_thread->pre_unpark, introduce stop_machine_unpark()
2015-10-20 10:23:55 +02:00
string: provide strscpy()
2015-09-10 15:36:59 -04:00
lib/string_helpers: rename "esc" arg to "only"
2015-09-10 13:29:01 -07:00
PM / sleep: Add flags to indicate platform firmware involvement
2015-10-14 02:17:33 +02:00
mm: swap: zswap: maybe_preload & refactoring
2015-09-08 15:35:28 -07:00
mm/hwpoison: fix race between soft_offline_page and unpoison_memory
2015-09-08 15:35:28 -07:00
mm: mlock: add new mlock system call
2015-11-05 19:34:48 -08:00
sysfs: added __compat_only_sysfs_link_entry_to_kobj()
2015-10-19 01:01:19 +02:00
block: Consolidate static integrity profile properties
2015-10-21 14:42:38 -06:00
tcp: fastopen: limit max_qlen
2015-10-22 06:22:13 -07:00
thermal: Add a function to get the minimum power
2015-09-14 07:39:46 -07:00
ti-st: use worker instead of calling st_int_write in wake up
2015-09-20 22:52:13 -07:00
nohz: Affine unpinned timers to housekeepers
2015-09-02 10:33:22 +02:00
ntp/pps: replace getnstime_raw_and_real with 64-bit version
2015-10-01 09:59:01 -07:00
ntp/pps: use timespec64 for hardpps()
2015-10-01 09:57:59 -07:00
tpm: seal/unseal for TPM 2.0
2015-10-19 01:01:21 +02:00
memcg: punt high overage reclaim to return-to-userland path
2015-11-05 19:34:48 -08:00
tty: Abstract tty buffer work
2015-10-17 21:32:21 -07:00
rcu: force alignment on struct callback_head/rcu_head
2015-11-05 19:34:48 -08:00
uaccess: reimplement probe_kernel_address() using probe_kernel_read()
2015-11-05 19:34:48 -08:00
usb: store the new usb 3.1 SuperSpeedPlus device capability descriptor
2015-10-04 10:34:17 +01:00
userfaultfd: mcopy_atomic|mfill_zeropage: UFFDIO_COPY|UFFDIO_ZEROPAGE preparation
2015-09-04 16:54:41 -07:00
include/linux/vm_event_item.h: change HIGHMEM_ZONE macro definition
2015-11-05 19:34:48 -08:00
mm: get rid of 'vmalloc_info' from /proc/meminfo
2015-11-01 17:09:15 -08:00
vme: 8-bit status/id takes 256 values, not 255
2015-10-17 22:03:00 -07:00
mm: remove refresh_cpu_vm_stats() definition for !SMP kernel
2015-11-05 19:34:48 -08:00
userfaultfd: revert "userfaultfd: waitqueue: add nr wake parameter to __wake_up_locked_key"
2015-09-22 15:09:53 -07:00
kernel/watchdog: move NMI function header declarations from watchdog.h to nmi.h
2015-09-04 16:54:41 -07:00
mm: zbud: constify the zbud_ops
2015-09-08 15:35:28 -07:00
zpool: add zpool_has_pool()
2015-09-10 13:29:01 -07:00
zsmalloc: account the number of compacted pages
2015-09-08 15:35:28 -07:00
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