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git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd
Pull MFD updates from Lee Jones:
"New Drivers:
- Add Cirrus Logic Madera Codec (CS47L35, CS47L85 and CS47L90/91) driver
- Add ChromeOS EC CEC driver
- Add ROHM BD71837 PMIC driver
New Device Support:
- Add support for Dialog Semi DA9063L PMIC variant to DA9063
- Add support for Intel Ice Lake to Intel-PLSS-PCI
- Add support for X-Powers AXP806 to AXP20x
New Functionality:
- Add support for USB Charging to the ChromeOS Embedded Controller
- Add support for HDMI CEC to the ChromeOS Embedded Controller
- Add support for HDMI CEC to Intel HDMI
- Add support for accessory detection to Madera devices
- Allow individual pins to be configured via DT' wlf,csnaddr-pd
- Provide legacy platform specific EEPROM/Watchdog commands; rave-sp
Fix-upsL
- Trivial renaming/spelling fixes; cros_ec, da9063-*
- Convert to Managed Resources (devm_*); da9063-*, ti_am335x_tscadc
- Transition to helper macros/functions; da9063-*
- Constify; kempld-core
- Improve error path/messages; wm8994-core
- Disable IRQs locally instead of relying on USB subsystem; dln2
- Remove unused code; rave-sp
- New exports; sec-core
Bug Fixes:
- Fix possible false I2C transaction error; arizona-core
- Fix declared memory area size; hi655x-pmic
- Fix checksum type; rave-sp
- Fix incorrect default serial port configuration: rave-sp
- Fix incorrect coherent DMA mask for sub-devices; sm501"
* tag 'mfd-next-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (60 commits)
mfd: madera: Add register definitions for accessory detect
mfd: sm501: Set coherent_dma_mask when creating subdevices
mfd: bd71837: Devicetree bindings for ROHM BD71837 PMIC
mfd: bd71837: Core driver for ROHM BD71837 PMIC
media: platform: cros-ec-cec: Fix dependency on MFD_CROS_EC
mfd: sec-core: Export OF module alias table
mfd: as3722: Disable auto-power-on when AC OK
mfd: axp20x: Support AXP806 in I2C mode
mfd: axp20x: Add self-working mode support for AXP806
dt-bindings: mfd: axp20x: Add "self-working" mode for AXP806
mfd: wm8994: Allow to configure CS/ADDR Pulldown from dts
mfd: wm8994: Allow to configure Speaker Mode Pullup from dts
mfd: rave-sp: Emulate CMD_GET_STATUS on device that don't support it
mfd: rave-sp: Add legacy watchdog ping command translation
mfd: rave-sp: Add legacy EEPROM access command translation
mfd: rave-sp: Initialize flow control and parity of the port
mfd: rave-sp: Fix incorrectly specified checksum type
mfd: rave-sp: Remove unused defines
mfd: hi655x: Fix regmap area declared size for hi655x
mfd: ti_am335x_tscadc: Fix struct clk memory leak
...
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git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp
Pull EDAC fix from Borislav Petkov:
"An urgent fix for a NULL ptr deref on machines with LRDDR4 DIMMs, from
Takashi Iwai"
* tag 'edac_fixes_for_4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp:
EDAC: Add missing MEM_LRDDR4 entry in edac_mem_types[]
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Various architectures fail to build properly with older versions of the
gcc compiler.
An example from Guenter Roeck in thread [1]:
>
> In file included from ./include/linux/mm.h:17:0,
> from ./include/linux/pid_namespace.h:7,
> from ./include/linux/ptrace.h:10,
> from arch/openrisc/kernel/asm-offsets.c:32:
> ./include/linux/mm_types.h:497:16: error: flexible array member in otherwise empty struct
>
> This is just an example with gcc 4.5.1 for or32. I have seen the problem
> with gcc 4.4 (for unicore32) as well.
So update the minimum required version of gcc to 4.6.
[1] https://lore.kernel.org/lkml/20180814170904.GA12768@roeck-us.net/
Miscellanea:
- Update Documentation/process/changes.rst
- Remove and consolidate version test blocks in compiler-gcc.h for
versions lower than 4.6
Signed-off-by: Joe Perches <joe@perches.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Commit 0bbf47eab469 ("ia64: use asm-generic/io.h") results in a BUG
while booting ia64. This is because asm-generic/io.h defines
PCI_IOBASE, which results in the function acpi_pci_root_remap_iospace()
doing a lot of unnecessary (and wrong) things.
I'd suggested an #if !CONFIG_IA64 in the functon, but Arnd suggested
keeping the fix inside the arch/ia64 tree.
Fixes: 0bbf47eab469 ("ia64: use asm-generic/io.h")
Suggested-by: Arnd Bergman <arnd@arndb.de>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu
Pull m68knommu updates from Greg Ungerer:
"Only two changes.
One cleans up warnings in the ColdFire DMA code, the other stubs out
(with warnings) ColdFire clock api functions not normally used"
* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu:
m68knommu: Fix typos in Coldfire 5272 DMA debug code
m68k: coldfire: Normalize clk API
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Pull networking fixes from David Miller:
1) Fix races in IPVS, from Tan Hu.
2) Missing unbind in matchall classifier, from Hangbin Liu.
3) Missing act_ife action release, from Vlad Buslov.
4) Cure lockdep splats in ila, from Cong Wang.
5) veth queue leak on link delete, from Toshiaki Makita.
6) Disable isdn's IIOCDBGVAR ioctl, it exposes kernel addresses. From
Kees Cook.
7) RCU usage fixup in XDP, from Tariq Toukan.
8) Two TCP ULP fixes from Daniel Borkmann.
9) r8169 needs REALTEK_PHY as a Kconfig dependency, from Heiner
Kallweit.
10) Always take tcf_lock with BH disabled, otherwise we can deadlock
with rate estimator code paths. From Vlad Buslov.
11) Don't use MSI-X on RTL8106e r8169 chips, they don't resume properly.
From Jian-Hong Pan.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (41 commits)
ip6_vti: fix creating fallback tunnel device for vti6
ip_vti: fix a null pointer deferrence when create vti fallback tunnel
r8169: don't use MSI-X on RTL8106e
net: lan743x_ptp: convert to ktime_get_clocktai_ts64
net: sched: always disable bh when taking tcf_lock
ip6_vti: simplify stats handling in vti6_xmit
bpf: fix redirect to map under tail calls
r8169: add missing Kconfig dependency
tools/bpf: fix bpf selftest test_cgroup_storage failure
bpf, sockmap: fix sock_map_ctx_update_elem race with exist/noexist
bpf, sockmap: fix map elem deletion race with smap_stop_sock
bpf, sockmap: fix leakage of smap_psock_map_entry
tcp, ulp: fix leftover icsk_ulp_ops preventing sock from reattach
tcp, ulp: add alias for all ulp modules
bpf: fix a rcu usage warning in bpf_prog_array_copy_core()
samples/bpf: all XDP samples should unload xdp/bpf prog on SIGTERM
net/xdp: Fix suspicious RCU usage warning
net/mlx5e: Delete unneeded function argument
Documentation: networking: ti-cpsw: correct cbs parameters for Eth1 100Mb
isdn: Disable IIOCDBGVAR
...
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When set fb_tunnels_only_for_init_net to 1, don't create fallback tunnel
device for vti6 when a new namespace is created.
Tested:
[root@builder2 ~]# modprobe ip6_tunnel
[root@builder2 ~]# modprobe ip6_vti
[root@builder2 ~]# echo 1 > /proc/sys/net/core/fb_tunnels_only_for_init_net
[root@builder2 ~]# unshare -n
[root@builder2 ~]# ip link
1: lo: <LOOPBACK> mtu 65536 qdisc noop state DOWN mode DEFAULT group
default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
Signed-off-by: Haishuang Yan <yanhaishuang@cmss.chinamobile.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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After set fb_tunnels_only_for_init_net to 1, the itn->fb_tunnel_dev will
be NULL and will cause following crash:
[ 2742.849298] BUG: unable to handle kernel NULL pointer dereference at 0000000000000941
[ 2742.851380] PGD 800000042c21a067 P4D 800000042c21a067 PUD 42aaed067 PMD 0
[ 2742.852818] Oops: 0002 [#1] SMP PTI
[ 2742.853570] CPU: 7 PID: 2484 Comm: unshare Kdump: loaded Not tainted 4.18.0-rc8+ #2
[ 2742.855163] Hardware name: Fedora Project OpenStack Nova, BIOS seabios-1.7.5-11.el7 04/01/2014
[ 2742.856970] RIP: 0010:vti_init_net+0x3a/0x50 [ip_vti]
[ 2742.858034] Code: 90 83 c0 48 c7 c2 20 a1 83 c0 48 89 fb e8 6e 3b f6 ff 85 c0 75 22 8b 0d f4 19 00 00 48 8b 93 00 14 00 00 48 8b 14 ca 48 8b 12 <c6> 82 41 09 00 00 04 c6 82 38 09 00 00 45 5b c3 66 0f 1f 44 00 00
[ 2742.861940] RSP: 0018:ffff9be28207fde0 EFLAGS: 00010246
[ 2742.863044] RAX: 0000000000000000 RBX: ffff8a71ebed4980 RCX: 0000000000000013
[ 2742.864540] RDX: 0000000000000000 RSI: 0000000000000013 RDI: ffff8a71ebed4980
[ 2742.866020] RBP: ffff8a71ea717000 R08: ffffffffc083903c R09: ffff8a71ea717000
[ 2742.867505] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8a71ebed4980
[ 2742.868987] R13: 0000000000000013 R14: ffff8a71ea5b49c0 R15: 0000000000000000
[ 2742.870473] FS: 00007f02266c9740(0000) GS:ffff8a71ffdc0000(0000) knlGS:0000000000000000
[ 2742.872143] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2742.873340] CR2: 0000000000000941 CR3: 000000042bc20006 CR4: 00000000001606e0
[ 2742.874821] Call Trace:
[ 2742.875358] ops_init+0x38/0xf0
[ 2742.876078] setup_net+0xd9/0x1f0
[ 2742.876789] copy_net_ns+0xb7/0x130
[ 2742.877538] create_new_namespaces+0x11a/0x1d0
[ 2742.878525] unshare_nsproxy_namespaces+0x55/0xa0
[ 2742.879526] ksys_unshare+0x1a7/0x330
[ 2742.880313] __x64_sys_unshare+0xe/0x20
[ 2742.881131] do_syscall_64+0x5b/0x180
[ 2742.881933] entry_SYSCALL_64_after_hwframe+0x44/0xa9
Reproduce:
echo 1 > /proc/sys/net/core/fb_tunnels_only_for_init_net
modprobe ip_vti
unshare -n
Fixes: 79134e6ce2c9 ("net: do not create fallback tunnels for non-default namespaces")
Cc: Eric Dumazet <edumazet@google.com>
Signed-off-by: Haishuang Yan <yanhaishuang@cmss.chinamobile.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Found the ethernet network on ASUS X441UAR doesn't come back on resume
from suspend when using MSI-X. The chip is RTL8106e - version 39.
[ 21.848357] libphy: r8169: probed
[ 21.848473] r8169 0000:02:00.0 eth0: RTL8106e, 0c:9d:92:32:67:b4, XID
44900000, IRQ 127
[ 22.518860] r8169 0000:02:00.0 enp2s0: renamed from eth0
[ 29.458041] Generic PHY r8169-200:00: attached PHY driver [Generic
PHY] (mii_bus:phy_addr=r8169-200:00, irq=IGNORE)
[ 63.227398] r8169 0000:02:00.0 enp2s0: Link is Up - 100Mbps/Full -
flow control off
[ 124.514648] Generic PHY r8169-200:00: attached PHY driver [Generic
PHY] (mii_bus:phy_addr=r8169-200:00, irq=IGNORE)
Here is the ethernet controller in detail:
02:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd.
RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller [10ec:8136]
(rev 07)
Subsystem: ASUSTeK Computer Inc. RTL810xE PCI Express Fast
Ethernet controller [1043:200f]
Flags: bus master, fast devsel, latency 0, IRQ 16
I/O ports at e000 [size=256]
Memory at ef100000 (64-bit, non-prefetchable) [size=4K]
Memory at e0000000 (64-bit, prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: r8169
Kernel modules: r8169
Falling back to MSI fixes the issue.
Fixes: 6c6aa15fdea5 ("r8169: improve interrupt handling")
Signed-off-by: Jian-Hong Pan <jian-hong@endlessm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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timekeeping_clocktai64() has been renamed to ktime_get_clocktai_ts64()
for consistency with the other ktime_get_* access functions.
Rename the new caller that has come up as well.
Question: this is the only ptp driver that sets the hardware time
to the current system time in TAI. Why does it do that?
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Recently, ops->init() and ops->dump() of all actions were modified to
always obtain tcf_lock when accessing private action state. Actions that
don't depend on tcf_lock for synchronization with their data path use
non-bh locking API. However, tcf_lock is also used to protect rate
estimator stats in softirq context by timer callback.
Change ops->init() and ops->dump() of all actions to disable bh when using
tcf_lock to prevent deadlock reported by following lockdep warning:
[ 105.470398] ================================
[ 105.475014] WARNING: inconsistent lock state
[ 105.479628] 4.18.0-rc8+ #664 Not tainted
[ 105.483897] --------------------------------
[ 105.488511] inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage.
[ 105.494871] swapper/16/0 [HC0[0]:SC1[1]:HE1:SE0] takes:
[ 105.500449] 00000000f86c012e (&(&p->tcfa_lock)->rlock){+.?.}, at: est_fetch_counters+0x3c/0xa0
[ 105.509696] {SOFTIRQ-ON-W} state was registered at:
[ 105.514925] _raw_spin_lock+0x2c/0x40
[ 105.519022] tcf_bpf_init+0x579/0x820 [act_bpf]
[ 105.523990] tcf_action_init_1+0x4e4/0x660
[ 105.528518] tcf_action_init+0x1ce/0x2d0
[ 105.532880] tcf_exts_validate+0x1d8/0x200
[ 105.537416] fl_change+0x55a/0x268b [cls_flower]
[ 105.542469] tc_new_tfilter+0x748/0xa20
[ 105.546738] rtnetlink_rcv_msg+0x56a/0x6d0
[ 105.551268] netlink_rcv_skb+0x18d/0x200
[ 105.555628] netlink_unicast+0x2d0/0x370
[ 105.559990] netlink_sendmsg+0x3b9/0x6a0
[ 105.564349] sock_sendmsg+0x6b/0x80
[ 105.568271] ___sys_sendmsg+0x4a1/0x520
[ 105.572547] __sys_sendmsg+0xd7/0x150
[ 105.576655] do_syscall_64+0x72/0x2c0
[ 105.580757] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 105.586243] irq event stamp: 489296
[ 105.590084] hardirqs last enabled at (489296): [<ffffffffb507e639>] _raw_spin_unlock_irq+0x29/0x40
[ 105.599765] hardirqs last disabled at (489295): [<ffffffffb507e745>] _raw_spin_lock_irq+0x15/0x50
[ 105.609277] softirqs last enabled at (489292): [<ffffffffb413a6a3>] irq_enter+0x83/0xa0
[ 105.618001] softirqs last disabled at (489293): [<ffffffffb413a800>] irq_exit+0x140/0x190
[ 105.626813]
other info that might help us debug this:
[ 105.633976] Possible unsafe locking scenario:
[ 105.640526] CPU0
[ 105.643325] ----
[ 105.646125] lock(&(&p->tcfa_lock)->rlock);
[ 105.650747] <Interrupt>
[ 105.653717] lock(&(&p->tcfa_lock)->rlock);
[ 105.658514]
*** DEADLOCK ***
[ 105.665349] 1 lock held by swapper/16/0:
[ 105.669629] #0: 00000000a640ad99 ((&est->timer)){+.-.}, at: call_timer_fn+0x10b/0x550
[ 105.678200]
stack backtrace:
[ 105.683194] CPU: 16 PID: 0 Comm: swapper/16 Not tainted 4.18.0-rc8+ #664
[ 105.690249] Hardware name: Supermicro SYS-2028TP-DECR/X10DRT-P, BIOS 2.0b 03/30/2017
[ 105.698626] Call Trace:
[ 105.701421] <IRQ>
[ 105.703791] dump_stack+0x92/0xeb
[ 105.707461] print_usage_bug+0x336/0x34c
[ 105.711744] mark_lock+0x7c9/0x980
[ 105.715500] ? print_shortest_lock_dependencies+0x2e0/0x2e0
[ 105.721424] ? check_usage_forwards+0x230/0x230
[ 105.726315] __lock_acquire+0x923/0x26f0
[ 105.730597] ? debug_show_all_locks+0x240/0x240
[ 105.735478] ? mark_lock+0x493/0x980
[ 105.739412] ? check_chain_key+0x140/0x1f0
[ 105.743861] ? __lock_acquire+0x836/0x26f0
[ 105.748323] ? lock_acquire+0x12e/0x290
[ 105.752516] lock_acquire+0x12e/0x290
[ 105.756539] ? est_fetch_counters+0x3c/0xa0
[ 105.761084] _raw_spin_lock+0x2c/0x40
[ 105.765099] ? est_fetch_counters+0x3c/0xa0
[ 105.769633] est_fetch_counters+0x3c/0xa0
[ 105.773995] est_timer+0x87/0x390
[ 105.777670] ? est_fetch_counters+0xa0/0xa0
[ 105.782210] ? lock_acquire+0x12e/0x290
[ 105.786410] call_timer_fn+0x161/0x550
[ 105.790512] ? est_fetch_counters+0xa0/0xa0
[ 105.795055] ? del_timer_sync+0xd0/0xd0
[ 105.799249] ? __lock_is_held+0x93/0x110
[ 105.803531] ? mark_held_locks+0x20/0xe0
[ 105.807813] ? _raw_spin_unlock_irq+0x29/0x40
[ 105.812525] ? est_fetch_counters+0xa0/0xa0
[ 105.817069] ? est_fetch_counters+0xa0/0xa0
[ 105.821610] run_timer_softirq+0x3c4/0x9f0
[ 105.826064] ? lock_acquire+0x12e/0x290
[ 105.830257] ? __bpf_trace_timer_class+0x10/0x10
[ 105.835237] ? __lock_is_held+0x25/0x110
[ 105.839517] __do_softirq+0x11d/0x7bf
[ 105.843542] irq_exit+0x140/0x190
[ 105.847208] smp_apic_timer_interrupt+0xac/0x3b0
[ 105.852182] apic_timer_interrupt+0xf/0x20
[ 105.856628] </IRQ>
[ 105.859081] RIP: 0010:cpuidle_enter_state+0xd8/0x4d0
[ 105.864395] Code: 46 ff 48 89 44 24 08 0f 1f 44 00 00 31 ff e8 cf ec 46 ff 80 7c 24 07 00 0f 85 1d 02 00 00 e8 9f 90 4b ff fb 66 0f 1f 44 00 00 <4c> 8b 6c 24 08 4d 29 fd 0f 80 36 03 00 00 4c 89 e8 48 ba cf f7 53
[ 105.884288] RSP: 0018:ffff8803ad94fd20 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
[ 105.892494] RAX: 0000000000000000 RBX: ffffe8fb300829c0 RCX: ffffffffb41e19e1
[ 105.899988] RDX: 0000000000000007 RSI: dffffc0000000000 RDI: ffff8803ad9358ac
[ 105.907503] RBP: ffffffffb6636300 R08: 0000000000000004 R09: 0000000000000000
[ 105.914997] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000004
[ 105.922487] R13: ffffffffb6636140 R14: ffffffffb66362d8 R15: 000000188d36091b
[ 105.929988] ? trace_hardirqs_on_caller+0x141/0x2d0
[ 105.935232] do_idle+0x28e/0x320
[ 105.938817] ? arch_cpu_idle_exit+0x40/0x40
[ 105.943361] ? mark_lock+0x8c1/0x980
[ 105.947295] ? _raw_spin_unlock_irqrestore+0x32/0x60
[ 105.952619] cpu_startup_entry+0xc2/0xd0
[ 105.956900] ? cpu_in_idle+0x20/0x20
[ 105.960830] ? _raw_spin_unlock_irqrestore+0x32/0x60
[ 105.966146] ? trace_hardirqs_on_caller+0x141/0x2d0
[ 105.971391] start_secondary+0x2b5/0x360
[ 105.975669] ? set_cpu_sibling_map+0x1330/0x1330
[ 105.980654] secondary_startup_64+0xa5/0xb0
Taking tcf_lock in sample action with bh disabled causes lockdep to issue a
warning regarding possible irq lock inversion dependency between tcf_lock,
and psample_groups_lock that is taken when holding tcf_lock in sample init:
[ 162.108959] Possible interrupt unsafe locking scenario:
[ 162.116386] CPU0 CPU1
[ 162.121277] ---- ----
[ 162.126162] lock(psample_groups_lock);
[ 162.130447] local_irq_disable();
[ 162.136772] lock(&(&p->tcfa_lock)->rlock);
[ 162.143957] lock(psample_groups_lock);
[ 162.150813] <Interrupt>
[ 162.153808] lock(&(&p->tcfa_lock)->rlock);
[ 162.158608]
*** DEADLOCK ***
In order to prevent potential lock inversion dependency between tcf_lock
and psample_groups_lock, extract call to psample_group_get() from tcf_lock
protected section in sample action init function.
Fixes: 4e232818bd32 ("net: sched: act_mirred: remove dependency on rtnl lock")
Fixes: 764e9a24480f ("net: sched: act_vlan: remove dependency on rtnl lock")
Fixes: 729e01260989 ("net: sched: act_tunnel_key: remove dependency on rtnl lock")
Fixes: d77284956656 ("net: sched: act_sample: remove dependency on rtnl lock")
Fixes: e8917f437006 ("net: sched: act_gact: remove dependency on rtnl lock")
Fixes: b6a2b971c0b0 ("net: sched: act_csum: remove dependency on rtnl lock")
Fixes: 2142236b4584 ("net: sched: act_bpf: remove dependency on rtnl lock")
Signed-off-by: Vlad Buslov <vladbu@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pull first set of KVM updates from Paolo Bonzini:
"PPC:
- minor code cleanups
x86:
- PCID emulation and CR3 caching for shadow page tables
- nested VMX live migration
- nested VMCS shadowing
- optimized IPI hypercall
- some optimizations
ARM will come next week"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (85 commits)
kvm: x86: Set highest physical address bits in non-present/reserved SPTEs
KVM/x86: Use CC_SET()/CC_OUT in arch/x86/kvm/vmx.c
KVM: X86: Implement PV IPIs in linux guest
KVM: X86: Add kvm hypervisor init time platform setup callback
KVM: X86: Implement "send IPI" hypercall
KVM/x86: Move X86_CR4_OSXSAVE check into kvm_valid_sregs()
KVM: x86: Skip pae_root shadow allocation if tdp enabled
KVM/MMU: Combine flushing remote tlb in mmu_set_spte()
KVM: vmx: skip VMWRITE of HOST_{FS,GS}_BASE when possible
KVM: vmx: skip VMWRITE of HOST_{FS,GS}_SEL when possible
KVM: vmx: always initialize HOST_{FS,GS}_BASE to zero during setup
KVM: vmx: move struct host_state usage to struct loaded_vmcs
KVM: vmx: compute need to reload FS/GS/LDT on demand
KVM: nVMX: remove a misleading comment regarding vmcs02 fields
KVM: vmx: rename __vmx_load_host_state() and vmx_save_host_state()
KVM: vmx: add dedicated utility to access guest's kernel_gs_base
KVM: vmx: track host_state.loaded using a loaded_vmcs pointer
KVM: vmx: refactor segmentation code in vmx_save_host_state()
kvm: nVMX: Fix fault priority for VMX operations
kvm: nVMX: Fix fault vector for VMX operation at CPL > 0
...
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git://git.kernel.org/pub/scm/linux/kernel/git/palmer/riscv-linux
Pull RISC-V updates from Palmer Dabbelt:
"This contains some major improvements to the RISC-V port, including
the necessary interrupt controller and timer support to actually make
it to userspace. Support for three devices has been added:
- the ISA-mandated timers on RISC-V systems.
- the ISA-mandated first-level interrupt controller on RISC-V
systems, which is handled as part of our core arch code because
it's very small and tightly tied to the ISA.
- SiFive's platform-level interrupt controller, which talks to the
actual devices.
In addition to these new devices, there are a handful of cleanups all
over the RISC-V tree:
- build fixes for various configurations:
* A fix to the vDSO build's makefile so it respects CFLAGS.
* The addition of __lshrti3, a libgcc derived function necessary
for some 32-bit configurations.
* !SMP && PERF_EVENTS
- Cleanups to the arch code to remove the remnants of old versions of
the drivers that were just properly submitted.
* Some dead code from the timer driver, most of which wasn't ever
even compiled.
* Cleanups of some interrupt #defines, which are now local to the
interrupt handling code.
- Fixes to ptrace(), which while not being sufficient to fully make
GDB work are at least sufficient to get simple GDB tasks to work.
- Early printk support via RISC-V's architecturally mandated SBI
console device.
- A fix to our early debug trap handler to ensure it's always
aligned.
These patches have all been through a fairly extensive review process,
but as this enables a whole pile of functionality (ie, userspace) I'm
confident we'll need to submit a few more patches. The only concrete
issues I know about are the sys_riscv_flush_icache patches, but as I
managed to screw those up on Friday I figured it'd be best to let them
bake another week.
This tag boots a Fedora root filesystem on QEMU's master branch for
me, and before this morning's rebase (from 4.18-rc8 to 4.18) it booted
on the HiFive Unleashed.
Thanks to Christoph Hellwig and the other guys at WD for getting the
new drivers in shape!"
* tag 'riscv-for-linus-4.19-mw0' of git://git.kernel.org/pub/scm/linux/kernel/git/palmer/riscv-linux:
dt-bindings: interrupt-controller: SiFive Plaform Level Interrupt Controller
dt-bindings: interrupt-controller: RISC-V local interrupt controller
RISC-V: Fix !CONFIG_SMP compilation error
irqchip: add a SiFive PLIC driver
RISC-V: Add the directive for alignment of stvec's value
clocksource: new RISC-V SBI timer driver
RISC-V: implement low-level interrupt handling
RISC-V: add a definition for the SIE SEIE bit
RISC-V: remove INTERRUPT_CAUSE_* defines from asm/irq.h
RISC-V: simplify software interrupt / IPI code
RISC-V: remove timer leftovers
RISC-V: Add early printk support via the SBI console
RISC-V: Don't increment sepc after breakpoint.
RISC-V: implement __lshrti3.
RISC-V: Use KBUILD_CFLAGS instead of KCFLAGS when building the vDSO
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull UIO fix from Greg KH:
"Here is a single UIO fix that I forgot to send before 4.18-final came
out. It reverts a UIO patch that went in the 4.18 development window
that was causing problems.
This patch has been in linux-next for a while with no problems, I just
forgot to send it earlier, or as part of the larger char/misc patch
series from yesterday, my fault"
* tag 'char-misc-4.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
Revert "uio: use request_threaded_irq instead"
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git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov:
- a new driver for Rohm BU21029 touch controller
- new bitmap APIs: bitmap_alloc, bitmap_zalloc and bitmap_free
- updates to Atmel, eeti. pxrc and iforce drivers
- assorted driver cleanups and fixes.
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (57 commits)
MAINTAINERS: Add PhoenixRC Flight Controller Adapter
Input: do not use WARN() in input_alloc_absinfo()
Input: mark expected switch fall-throughs
Input: raydium_i2c_ts - use true and false for boolean values
Input: evdev - switch to bitmap API
Input: gpio-keys - switch to bitmap_zalloc()
Input: elan_i2c_smbus - cast sizeof to int for comparison
bitmap: Add bitmap_alloc(), bitmap_zalloc() and bitmap_free()
md: Avoid namespace collision with bitmap API
dm: Avoid namespace collision with bitmap API
Input: pm8941-pwrkey - add resin entry
Input: pm8941-pwrkey - abstract register offsets and event code
Input: iforce - reorganize joystick configuration lists
Input: atmel_mxt_ts - move completion to after config crc is updated
Input: atmel_mxt_ts - don't report zero pressure from T9
Input: atmel_mxt_ts - zero terminate config firmware file
Input: atmel_mxt_ts - refactor config update code to add context struct
Input: atmel_mxt_ts - config CRC may start at T71
Input: atmel_mxt_ts - remove unnecessary debug on ENOMEM
Input: atmel_mxt_ts - remove duplicate setup of ABS_MT_PRESSURE
...
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Pull hwspinlock updates from Bjorn Andersson:
"This introduces devres helpers and an API to request a lock by name,
then migrates the sprd SPI driver to use these"
* tag 'hwlock-v4.19' of git://github.com/andersson/remoteproc:
hwspinlock: Fix incorrect return pointers
spi: sprd: Change to use devm_hwspin_lock_request_specific()
spi: sprd: Replace of_hwspin_lock_get_id() with of_hwspin_lock_get_id_byname()
hwspinlock: Fix one comment mistake
hwspinlock: Remove redundant config
hwspinlock: Add devm_xxx() APIs to register/unregister one hwlock controller
hwspinlock: Add devm_xxx() APIs to request/free hwlock
hwspinlock: Add one new API to support getting a specific hwlock by the name
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Pull rpmsg updates from Bjorn Andersson:
"This fixes a few compile and kerneldoc warnings, allows rpmsg devices
to handle power domains, allow for labeling GLINK edges and supports
compat for rpmsg_char"
* tag 'rpmsg-v4.19' of git://github.com/andersson/remoteproc:
rpmsg: Add compat ioctl for rpmsg char driver
rpmsg: glink: Store edge name for glink device
dt-bindings: soc: qcom: Add label for GLINK bindings
rpmsg: core: add support to power domains for devices
rpmsg: smd: fix kerneldoc warnings
rpmsg: glink: Fix various kerneldoc warnings.
rpmsg: glink: correctly annotate intent members
rpmsg: smd: Add missing include of sizes.h
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Pull remoteproc updates from Bjorn Andersson:
"This adds support for pre-start and post-shutdown hooks for remoteproc
subdevices, refactors the Qualcomm Hexagon support to allow reuse
between several drivers, makes authentication in the MDT file loader
optional, migrates a few format strings to use %pK and migrates the
Davinci driver to use the reset framework"
* tag 'rproc-v4.19' of git://github.com/andersson/remoteproc:
remoteproc/davinci: use the reset framework
remoteproc/davinci: Mark error recovery as disabled
remoteproc: st_slim: replace "%p" with "%pK"
remoteproc: replace "%p" with "%pK"
remoteproc: qcom: fix Q6V5_WCSS dependencies
remoteproc: Reset table_ptr in rproc_start() failure paths
remoteproc: qcom: q6v5-pil: fix modem hang on SDM845 after axis2 clk unvote
remoteproc: qcom q6v5: fix modular build
remoteproc: Introduce prepare and unprepare for subdevices
remoteproc: rename subdev probe and remove functions
remoteproc: Make client initialize ops in rproc_subdev
remoteproc: Make start and stop in subdev optional
remoteproc: Rename subdev functions to start/stop
remoteproc: qcom: Introduce Hexagon V5 based WCSS driver
remoteproc: qcom: q6v5-pil: Use common q6v5 helpers
remoteproc: qcom: adsp: Use common q6v5 helpers
remoteproc: q6v5: Extract common resource handling
remoteproc: qcom: mdt_loader: Make the firmware authentication optional
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git://www.linux-watchdog.org/linux-watchdog
Pull watchdog updates from Wim Van Sebroeck:
- add MEN 16z069 IP-Core driver
- renesas-wdt: add support for the R8A77990 wdt
- stm32_iwdg: Add stm32mp1 support and pclk feature
- sp805_wdt, orion_wdt, sprd_wdt: several improvements
- imx2_wdt, stmp3xxx: switch to SPDX identifier
* tag 'linux-watchdog-4.19-rc1' of git://www.linux-watchdog.org/linux-watchdog:
watchdog: fix dependencies of menz69_wdt.o
watchdog: sp805: Add clock-frequency property
watchdog: add driver for the MEN 16z069 IP-Core
watchdog: sprd_wdt: Remove redundant dev_err call in sprd_wdt_probe()
watchdog: stmp3xxx: Switch to SPDX identifier
watchdog: imx2_wdt: Switch to SPDX identifier
watchdog: sp805: set WDOG_HW_RUNNING when appropriate
watchdog: sp805: add 'timeout-sec' DT property support
dt-bindings: watchdog: Add optional 'timeout-sec' property for sp805
dt-bindings: watchdog: Consolidate SP805 binding docs
watchdog: orion_wdt: Mark watchdog as active when running at probe
watchdog: stm32: add pclk feature for stm32mp1
dt-bindings: watchdog: add stm32mp1 support
dt-bindings: watchdog: renesas-wdt: Add support for the R8A77990 wdt
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Pull DMAengine updates from Vinod Koul:
"This round brings couple of framework changes, a new driver and usual
driver updates:
- new managed helper for dmaengine framework registration
- split dmaengine pause capability to pause and resume and allow
drivers to report that individually
- update dma_request_chan_by_mask() to handle deferred probing
- move imx-sdma to use virt-dma
- new driver for Actions Semi Owl family S900 controller
- minor updates to intel, renesas, mv_xor, pl330 etc"
* tag 'dmaengine-4.19-rc1' of git://git.infradead.org/users/vkoul/slave-dma: (46 commits)
dmaengine: Add Actions Semi Owl family S900 DMA driver
dt-bindings: dmaengine: Add binding for Actions Semi Owl SoCs
dmaengine: sh: rcar-dmac: Should not stop the DMAC by rcar_dmac_sync_tcr()
dmaengine: mic_x100_dma: use the new helper to simplify the code
dmaengine: add a new helper dmaenginem_async_device_register
dmaengine: imx-sdma: add memcpy interface
dmaengine: imx-sdma: add SDMA_BD_MAX_CNT to replace '0xffff'
dmaengine: dma_request_chan_by_mask() to handle deferred probing
dmaengine: pl330: fix irq race with terminate_all
dmaengine: Revert "dmaengine: mv_xor_v2: enable COMPILE_TEST"
dmaengine: mv_xor_v2: use {lower,upper}_32_bits to configure HW descriptor address
dmaengine: mv_xor_v2: enable COMPILE_TEST
dmaengine: mv_xor_v2: move unmap to before callback
dmaengine: mv_xor_v2: convert callback to helper function
dmaengine: mv_xor_v2: kill the tasklets upon exit
dmaengine: mv_xor_v2: explicitly freeup irq
dmaengine: sh: rcar-dmac: Add dma_pause operation
dmaengine: sh: rcar-dmac: add a new function to clear CHCR.DE with barrier
dmaengine: idma64: Support dmaengine_terminate_sync()
dmaengine: hsu: Support dmaengine_terminate_sync()
...
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Pull MMC updates from Ulf Hansson:
"Updates for MMC for v4.19.
MMC core:
- Add some fine-grained hooks to further support HS400 tuning
- Improve error path for bus width setting for HS400es
- Use a common method when checking R1 status
MMC host:
- renesas_sdhi: Add r8a77990 support
- renesas_sdhi: Add eMMC HS400 mode support
- tmio/renesas_sdhi: Improve tuning/clock management
- tmio: Add eMMC HS400 mode support
- sunxi: Add support for 3.3V eMMC DDR mode
- mmci: Initial support to manage variant specific callbacks
- sdhci: Don't try 3.3V I/O voltage if not supported
- sdhci-pci-dwc-mshc: Add driver to support Synopsys dwc mshc SDHCI PCI
- sdhci-of-dwcmshc: Add driver to support Synopsys DWC MSHC SDHCI
- sdhci-msm: Add support for new version sdcc V5
- sdhci-pci-o2micro: Add support for O2 eMMC HS200 mode
- sdhci-pci-o2micro: Add support for O2 hardware tuning
- sdhci-pci-o2micro: Add MSI interrupt support for O2 SD host
- sdhci-pci: Add support for Intel ICP
- sdhci-tegra: Prevent ACMD23 and HS200 mode on Tegra 3
- sdhci-tegra: Fix eMMC DDR52 mode
- sdhci-tegra: Improve clock management
- dw_mmc-rockchip: Document compatible string for px30
- sdhci-esdhc-imx: Add support for 3.3V eMMC DDR mode
- sdhci-of-esdhc: Set proper DMA mask for ls104x chips
- sdhci-of-esdhc: Improve clock management
- sdhci-of-arasan: Add a quirk to manage unstable clocks
- dw_mmc-exynos: Address potential external abort during system resume
- pxamci: Add support for common MMC DT bindings
- pxamci: Several cleanups and improvements
- pxamci: Merge immutable branch for pxa to switch to DMA slave maps"
* tag 'mmc-v4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: (56 commits)
mmc: core: improve reasonableness of bus width setting for HS400es
mmc: tmio: remove unneeded variable in tmio_mmc_start_command()
mmc: renesas_sdhi: Fix sampling clock position selecting
mmc: tmio: Fix tuning flow
mmc: sunxi: remove output of virtual base address
dt-bindings: mmc: rockchip-dw-mshc: add description for px30
mmc: renesas_sdhi: Add r8a77990 support
mmc: sunxi: allow 3.3V DDR when DDR is available
mmc: mmci: Add and implement a ->dma_setup() callback for qcom dml
mmc: mmci: Initial support to manage variant specific callbacks
mmc: tegra: Force correct divider calculation on DDR50/52
mmc: sdhci: Add MSI interrupt support for O2 SD host
mmc: sdhci: Add support for O2 hardware tuning
mmc: sdhci: Export sdhci tuning function symbol
mmc: sdhci: Change O2 Host HS200 mode clock frequency to 200MHz
mmc: sdhci: Add support for O2 eMMC HS200 mode
mmc: tegra: Add and use tegra_sdhci_get_max_clock()
mmc: sdhci-esdhc-imx: fix indent
mmc: sdhci-esdhc-imx: disable clocks before changing frequency
mmc: tegra: prevent ACMD23 on Tegra 3
...
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Same as ip_vti, use iptunnel_xmit_stats to updates stats in tunnel xmit
code path.
Signed-off-by: Haishuang Yan <yanhaishuang@cmss.chinamobile.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This function was created as a deprecated fallback case back in 2010 by
commit eb14120f743d ("pcmcia: re-work pcmcia_request_irq()") for legacy
cases.
Actual in-kernel users haven't been around for a long while. The last
in-kernel user was apparently removed four years ago by commit
5f5316fcd08e ("am2150: Update nmclan_cs.c to use update PCMCIA API").
Just remove it entirely.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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We haven't had lots of deprecation warnings lately, but the rdma use of
it made them flare up again.
They are not useful. They annoy everybody, and nobody ever does
anything about them, because it's always "somebody elses problem". And
when people start thinking that warnings are normal, they stop looking
at them, and the real warnings that mean something go unnoticed.
If you want to get rid of a function, just get rid of it. Convert every
user to the new world order.
And if you can't do that, then don't annoy everybody else with your
marking that says "I couldn't be bothered to fix this, so I'll just spam
everybody elses build logs with warnings about my laziness".
Make a kernelnewbies wiki page about things that could be cleaned up,
write a blog post about it, or talk to people on the mailing lists. But
don't add warnings to the kernel build about cleanup that you think
should happen but you aren't doing yourself.
Don't. Just don't.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core updates from Greg KH:
"Here are all of the driver core and related patches for 4.19-rc1.
Nothing huge here, just a number of small cleanups and the ability to
now stop the deferred probing after init happens.
All of these have been in linux-next for a while with only a merge
issue reported"
* tag 'driver-core-4.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (21 commits)
base: core: Remove WARN_ON from link dependencies check
drivers/base: stop new probing during shutdown
drivers: core: Remove glue dirs from sysfs earlier
driver core: remove unnecessary function extern declare
sysfs.h: fix non-kernel-doc comment
PM / Domains: Stop deferring probe at the end of initcall
iommu: Remove IOMMU_OF_DECLARE
iommu: Stop deferring probe at end of initcalls
pinctrl: Support stopping deferred probe after initcalls
dt-bindings: pinctrl: add a 'pinctrl-use-default' property
driver core: allow stopping deferred probe after init
driver core: add a debugfs entry to show deferred devices
sysfs: Fix internal_create_group() for named group updates
base: fix order of OF initialization
linux/device.h: fix kernel-doc notation warning
Documentation: update firmware loader fallback reference
kobject: Replace strncpy with memcpy
drivers: base: cacheinfo: use OF property_read_u32 instead of get_property,read_number
kernfs: Replace strncpy with memcpy
device: Add #define dev_fmt similar to #define pr_fmt
...
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver updates from Greg KH:
"Here is the bit set of char/misc drivers for 4.19-rc1
There is a lot here, much more than normal, seems like everyone is
writing new driver subsystems these days... Anyway, major things here
are:
- new FSI driver subsystem, yet-another-powerpc low-level hardware
bus
- gnss, finally an in-kernel GPS subsystem to try to tame all of the
crazy out-of-tree drivers that have been floating around for years,
combined with some really hacky userspace implementations. This is
only for GNSS receivers, but you have to start somewhere, and this
is great to see.
Other than that, there are new slimbus drivers, new coresight drivers,
new fpga drivers, and loads of DT bindings for all of these and
existing drivers.
All of these have been in linux-next for a while with no reported
issues"
* tag 'char-misc-4.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (255 commits)
android: binder: Rate-limit debug and userspace triggered err msgs
fsi: sbefifo: Bump max command length
fsi: scom: Fix NULL dereference
misc: mic: SCIF Fix scif_get_new_port() error handling
misc: cxl: changed asterisk position
genwqe: card_base: Use true and false for boolean values
misc: eeprom: assignment outside the if statement
uio: potential double frees if __uio_register_device() fails
eeprom: idt_89hpesx: clean up an error pointer vs NULL inconsistency
misc: ti-st: Fix memory leak in the error path of probe()
android: binder: Show extra_buffers_size in trace
firmware: vpd: Fix section enabled flag on vpd_section_destroy
platform: goldfish: Retire pdev_bus
goldfish: Use dedicated macros instead of manual bit shifting
goldfish: Add missing includes to goldfish.h
mux: adgs1408: new driver for Analog Devices ADGS1408/1409 mux
dt-bindings: mux: add adi,adgs1408
Drivers: hv: vmbus: Cleanup synic memory free path
Drivers: hv: vmbus: Remove use of slow_virt_to_phys()
Drivers: hv: vmbus: Reset the channel callback in vmbus_onoffer_rescind()
...
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging and IIO updates from Greg KH:
"Here are the big staging/iio patches for 4.19-rc1.
Lots of churn here, with tons of cleanups happening in staging
drivers, a removal of an old crypto driver that no one was using
(skein), and the addition of some new IIO drivers. Also added was a
"gasket" driver from Google that needs loads of work and the erofs
filesystem.
Even with adding all of the new drivers and a new filesystem, we are
only adding about 1000 lines overall to the kernel linecount, which
shows just how much cleanup happened, and how big the unused crypto
driver was.
All of these have been in the linux-next tree for a while now with no
reported issues"
* tag 'staging-4.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (903 commits)
staging:rtl8192u: Remove unused macro definitions - Style
staging:rtl8192u: Add spaces around '+' operator - Style
staging:rtl8192u: Remove stale comment - Style
staging: rtl8188eu: remove unused mp_custom_oid.h
staging: fbtft: Add spaces around / - Style
staging: fbtft: Erases some repetitive usage of function name - Style
staging: fbtft: Adjust some empty-line problems - Style
staging: fbtft: Removes one nesting level to help readability - Style
staging: fbtft: Changes gamma table to define.
staging: fbtft: A bit more information on dev_err.
staging: fbtft: Fixes some alignment issues - Style
staging: fbtft: Puts macro arguments in parenthesis to avoid precedence issues - Style
staging: rtl8188eu: remove unused array dB_Invert_Table
staging: rtl8188eu: remove whitespace, add missing blank line
staging: rtl8188eu: use is_multicast_ether_addr in rtw_sta_mgt.c
staging: rtl8188eu: remove whitespace - style
staging: rtl8188eu: cleanup block comment - style
staging: rtl8188eu: use is_multicast_ether_addr in rtl8188eu_xmit.c
staging: rtl8188eu: use is_multicast_ether_addr in recv_linux.c
staging: rtlwifi: refactor rtl_get_tcb_desc
...
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty/serial driver updates from Greg KH:
"Here is the big tty and serial driver pull request for 4.19-rc1.
It's not all that big, just a number of small serial driver updates
and fixes, along with some better vt handling for unicode characters
for those using braille terminals.
All of these patches have been in linux-next for a long time with no
reported issues"
* tag 'tty-4.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (73 commits)
tty: serial: 8250: Revert NXP SC16C2552 workaround
serial: 8250_exar: Read INT0 from slave device, too
tty: rocket: Fix possible buffer overwrite on register_PCI
serial: 8250_dw: Add ACPI support for uart on Broadcom SoC
serial: 8250_dw: always set baud rate in dw8250_set_termios
dt-bindings: serial: Add binding for uartlite
tty: serial: uartlite: Add support for suspend and resume
tty: serial: uartlite: Add clock adaptation
tty: serial: uartlite: Add structure for private data
serial: sh-sci: Improve support for separate TEI and DRI interrupts
serial: sh-sci: Remove SCIx_RZ_SCIFA_REGTYPE
serial: sh-sci: Allow for compressed SCIF address
serial: sh-sci: Improve interrupts description
serial: 8250: Use cached port name directly in messages
serial: 8250_exar: Drop unused variable in pci_xr17v35x_setup()
vt: drop unused struct vt_struct
vt: avoid a VLA in the unicode screen scroll function
vt: add /dev/vcsu* to devices.txt
vt: coherence validation code for the unicode screen buffer
vt: selection: take screen contents from uniscr if available
...
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB/PHY updates from Greg KH:
"Here is the big USB and phy driver patch set for 4.19-rc1.
Nothing huge but there was a lot of work that happened this
development cycle:
- lots of type-c work, with drivers graduating out of staging, and
displayport support being added.
- new PHY drivers
- the normal collection of gadget driver updates and fixes
- code churn to work on the urb handling path, using irqsave()
everywhere in anticipation of making this codepath a lot simpler in
the future.
- usbserial driver fixes and reworks
- other misc changes
All of these have been in linux-next with no reported issues for a
while"
* tag 'usb-4.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (159 commits)
USB: serial: pl2303: add a new device id for ATEN
usb: renesas_usbhs: Kconfig: convert to SPDX identifiers
usb: dwc3: gadget: Check MaxPacketSize from descriptor
usb: dwc2: Turn on uframe_sched on "stm32f4x9_fsotg" platforms
usb: dwc2: Turn on uframe_sched on "amlogic" platforms
usb: dwc2: Turn on uframe_sched on "his" platforms
usb: dwc2: Turn on uframe_sched on "bcm" platforms
usb: dwc2: gadget: ISOC's starting flow improvement
usb: dwc2: Make dwc2_readl/writel functions endianness-agnostic.
usb: dwc3: core: Enable AutoRetry feature in the controller
usb: dwc3: Set default mode for dwc_usb31
usb: gadget: udc: renesas_usb3: Add register of usb role switch
usb: dwc2: replace ioread32/iowrite32_rep with dwc2_readl/writel_rep
usb: dwc2: Modify dwc2_readl/writel functions prototype
usb: dwc3: pci: Intel Merrifield can be host
usb: dwc3: pci: Supply device properties via driver data
arm64: dts: dwc3: description of incr burst type
usb: dwc3: Enable undefined length INCR burst type
usb: dwc3: add global soc bus configuration reg0
usb: dwc3: Describe 'wakeup_work' field of struct dwc3_pci
...
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Daniel Borkmann says:
====================
pull-request: bpf 2018-08-18
The following pull-request contains BPF updates for your *net* tree.
The main changes are:
1) Fix a BPF selftest failure in test_cgroup_storage due to rlimit
restrictions, from Yonghong.
2) Fix a suspicious RCU rcu_dereference_check() warning triggered
from removing a device's XDP memory allocator by using the correct
rhashtable lookup function, from Tariq.
3) A batch of BPF sockmap and ULP fixes mainly fixing leaks and races
as well as enforcing module aliases for ULPs. Another fix for BPF
map redirect to make them work again with tail calls, from Daniel.
4) Fix XDP BPF samples to unload their programs upon SIGTERM, from Jesper.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
Pablo Neira Ayuso says:
====================
Netfilter/IPVS fixes for net
The following patchset contains Netfilter/IPVS fixes for your net tree:
1) Infinite loop in IPVS when net namespace is released, from
Tan Hu.
2) Do not show negative timeouts in ip_vs_conn by using the new
jiffies_delta_to_msecs(), patches from Matteo Croce.
3) Set F_IFACE flag for linklocal addresses in ip6t_rpfilter,
from Florian Westphal.
4) Fix overflow in set size allocation, from Taehee Yoo.
5) Use netlink_dump_start() from ctnetlink to fix memleak from
the error path, again from Florian.
6) Register nfnetlink_subsys in last place, otherwise netns
init path may lose race and see net->nft uninitialized data.
This also reverts previous attempt to fix this by increase
netns refcount, patches from Florian.
7) Remove conntrack entries on layer 4 protocol tracker module
removal, from Florian.
8) Use GFP_KERNEL_ACCOUNT for xtables blob allocation, from
Michal Hocko.
9) Get tproxy documentation in sync with existing codebase,
from Mate Eckl.
10) Honor preset layer 3 protocol via ctx->family in the new nft_ct
timeout infrastructure, from Harsha Sharma.
11) Let uapi nfnetlink_osf.h compile standalone with no errors,
from Dmitry V. Levin.
12) Missing braces compilation warning in nft_tproxy, patch from
Mate Eclk.
13) Disregard bogus check to bail out on non-anonymous sets from
the dynamic set update extension.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
|
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Pull 9p updates from Dominique Martinet:
"This contains mostly fixes (6 to be backported to stable) and a few
changes, here is the breakdown:
- rework how fids are attributed by replacing some custom tracking in
a list by an idr
- for packet-based transports (virtio/rdma) validate that the packet
length matches what the header says
- a few race condition fixes found by syzkaller
- missing argument check when NULL device is passed in sys_mount
- a few virtio fixes
- some spelling and style fixes"
* tag '9p-for-4.19-2' of git://github.com/martinetd/linux: (21 commits)
net/9p/trans_virtio.c: add null terminal for mount tag
9p/virtio: fix off-by-one error in sg list bounds check
9p: fix whitespace issues
9p: fix multiple NULL-pointer-dereferences
fs/9p/xattr.c: catch the error of p9_client_clunk when setting xattr failed
9p: validate PDU length
net/9p/trans_fd.c: fix race by holding the lock
net/9p/trans_fd.c: fix race-condition by flushing workqueue before the kfree()
net/9p/virtio: Fix hard lockup in req_done
net/9p/trans_virtio.c: fix some spell mistakes in comments
9p/net: Fix zero-copy path in the 9p virtio transport
9p: Embed wait_queue_head into p9_req_t
9p: Replace the fidlist with an IDR
9p: Change p9_fid_create calling convention
9p: Fix comment on smp_wmb
net/9p/client.c: version pointer uninitialized
fs/9p/v9fs.c: fix spelling mistake "Uknown" -> "Unknown"
net/9p: fix error path of p9_virtio_probe
9p/net/protocol.c: return -ENOMEM when kmalloc() failed
net/9p/client.c: add missing '\n' at the end of p9_debug()
...
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Merge updates from Andrew Morton:
- a few misc things
- a few Y2038 fixes
- ntfs fixes
- arch/sh tweaks
- ocfs2 updates
- most of MM
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (111 commits)
mm/hmm.c: remove unused variables align_start and align_end
fs/userfaultfd.c: remove redundant pointer uwq
mm, vmacache: hash addresses based on pmd
mm/list_lru: introduce list_lru_shrink_walk_irq()
mm/list_lru.c: pass struct list_lru_node* as an argument to __list_lru_walk_one()
mm/list_lru.c: move locking from __list_lru_walk_one() to its caller
mm/list_lru.c: use list_lru_walk_one() in list_lru_walk_node()
mm, swap: make CONFIG_THP_SWAP depend on CONFIG_SWAP
mm/sparse: delete old sparse_init and enable new one
mm/sparse: add new sparse_init_nid() and sparse_init()
mm/sparse: move buffer init/fini to the common place
mm/sparse: use the new sparse buffer functions in non-vmemmap
mm/sparse: abstract sparse buffer allocations
mm/hugetlb.c: don't zero 1GiB bootmem pages
mm, page_alloc: double zone's batchsize
mm/oom_kill.c: document oom_lock
mm/hugetlb: remove gigantic page support for HIGHMEM
mm, oom: remove sleep from under oom_lock
kernel/dma: remove unsupported gfp_mask parameter from dma_alloc_from_contiguous()
mm/cma: remove unsupported gfp_mask parameter from cma_alloc()
...
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Variables align_start and align_end are being assigned but are never
used hence they are redundant and can be removed.
Cleans up clang warnings:
warning: variable 'align_start' set but not used [-Wunused-but-set-variable]
warning: variable 'align_size' set but not used [-Wunused-but-set-variable]
Link: http://lkml.kernel.org/r/20180714161124.3923-1-colin.king@canonical.com
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Pointer uwq is being assigned but is never used hence it is redundant
and can be removed.
Cleans up clang warning:
warning: variable 'uwq' set but not used [-Wunused-but-set-variable]
Link: http://lkml.kernel.org/r/20180717090802.18357-1-colin.king@canonical.com
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
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When perf profiling a wide variety of different workloads, it was found
that vmacache_find() had higher than expected cost: up to 0.08% of cpu
utilization in some cases. This was found to rival other core VM
functions such as alloc_pages_vma() with thp enabled and default
mempolicy, and the conditionals in __get_vma_policy().
VMACACHE_HASH() determines which of the four per-task_struct slots a vma
is cached for a particular address. This currently depends on the pfn,
so pfn 5212 occupies a different vmacache slot than its neighboring pfn
5213.
vmacache_find() iterates through all four of current's vmacache slots
when looking up an address. Hashing based on pfn, an address has
~1/VMACACHE_SIZE chance of being cached in the first vmacache slot, or
about 25%, *if* the vma is cached.
This patch hashes an address by its pmd instead of pte to optimize for
workloads with good spatial locality. This results in a higher
probability of vmas being cached in the first slot that is checked:
normally ~70% on the same workloads instead of 25%.
[rientjes@google.com: various updates]
Link: http://lkml.kernel.org/r/alpine.DEB.2.21.1807231532290.109445@chino.kir.corp.google.com
Link: http://lkml.kernel.org/r/alpine.DEB.2.21.1807091749150.114630@chino.kir.corp.google.com
Signed-off-by: David Rientjes <rientjes@google.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Provide list_lru_shrink_walk_irq() and let it behave like
list_lru_walk_one() except that it locks the spinlock with
spin_lock_irq(). This is used by scan_shadow_nodes() because its lock
nests within the i_pages lock which is acquired with IRQ. This change
allows to use proper locking promitives instead hand crafted
lock_irq_disable() plus spin_lock().
There is no EXPORT_SYMBOL provided because the current user is in-kernel
only.
Add list_lru_shrink_walk_irq() which acquires the spinlock with the
proper locking primitives.
Link: http://lkml.kernel.org/r/20180716111921.5365-5-bigeasy@linutronix.de
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Reviewed-by: Vladimir Davydov <vdavydov.dev@gmail.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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__list_lru_walk_one()
__list_lru_walk_one() is invoked with struct list_lru *lru, int nid as
the first two argument. Those two are only used to retrieve struct
list_lru_node. Since this is already done by the caller of the function
for the locking, we can pass struct list_lru_node* directly and avoid
the dance around it.
Link: http://lkml.kernel.org/r/20180716111921.5365-4-bigeasy@linutronix.de
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Reviewed-by: Vladimir Davydov <vdavydov.dev@gmail.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Move the locking inside __list_lru_walk_one() to its caller. This is a
preparation step in order to introduce list_lru_walk_one_irq() which
does spin_lock_irq() instead of spin_lock() for the locking.
Link: http://lkml.kernel.org/r/20180716111921.5365-3-bigeasy@linutronix.de
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Reviewed-by: Vladimir Davydov <vdavydov.dev@gmail.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Patch series "mm/list_lru: Add list_lru_shrink_walk_irq() and a user".
This series removes the local_irq_disable() around
list_lru_shrink_walk() (as used by mm/workingset) by adding
list_lru_shrink_walk_irq().
Vladimir Davydov preferred this over `irq' argument which I added to
struct list_lru.
The initial post (of this series) received a Reviewed-by tag by Vladimir
Davydov which I added to each patch of the series. The series applies
on top of akpm's tree which has Kirill's shrink_slab series and does not
clash with it (akpm asked me to wait a week or so and repost it then).
I tested the code paths by triggering the OOM-killer via memory over
commit and lockdep did not complain (nor did I see any warnings).
This patch (of 4):
list_lru_walk_node() invokes __list_lru_walk_one() with -1 as the
memcg_idx parameter. The same can be achieved by list_lru_walk_one() and
passing NULL as memcg argument which then gets converted into -1. This is
a preparation step when the spin_lock() function is lifted to the caller
of __list_lru_walk_one(). Invoke list_lru_walk_one() instead
__list_lru_walk_one() when possible.
Link: http://lkml.kernel.org/r/20180716111921.5365-2-bigeasy@linutronix.de
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Reviewed-by: Vladimir Davydov <vdavydov.dev@gmail.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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CONFIG_THP_SWAP should depend on CONFIG_SWAP, because it's unreasonable
to optimize swapping for THP (Transparent Huge Page) without basic
swapping support.
In original code, when CONFIG_SWAP=n and CONFIG_THP_SWAP=y,
split_swap_cluster() will not be built because it is in swapfile.c, but
it will be called in huge_memory.c. This doesn't trigger a build error
in practice because the call site is enclosed by PageSwapCache(), which
is defined to be constant 0 when CONFIG_SWAP=n. But this is fragile and
should be fixed.
The comments are fixed too to reflect the latest progress.
Link: http://lkml.kernel.org/r/20180713021228.439-1-ying.huang@intel.com
Fixes: 38d8b4e6bdc8 ("mm, THP, swap: delay splitting THP during swap out")
Signed-off-by: "Huang, Ying" <ying.huang@intel.com>
Reviewed-by: Dan Williams <dan.j.williams@intel.com>
Reviewed-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Shaohua Li <shli@kernel.org>
Cc: Hugh Dickins <hughd@google.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Rik van Riel <riel@redhat.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Zi Yan <zi.yan@cs.rutgers.edu>
Cc: Daniel Jordan <daniel.m.jordan@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Rename new_sparse_init() to sparse_init() which enables it. Delete old
sparse_init() and all the code that became obsolete with.
[pasha.tatashin@oracle.com: remove unused sparse_mem_maps_populate_node()]
Link: http://lkml.kernel.org/r/20180716174447.14529-6-pasha.tatashin@oracle.com
Link: http://lkml.kernel.org/r/20180712203730.8703-6-pasha.tatashin@oracle.com
Signed-off-by: Pavel Tatashin <pasha.tatashin@oracle.com>
Tested-by: Michael Ellerman <mpe@ellerman.id.au> [powerpc]
Tested-by: Oscar Salvador <osalvador@suse.de>
Reviewed-by: Oscar Salvador <osalvador@suse.de>
Cc: Pasha Tatashin <Pavel.Tatashin@microsoft.com>
Cc: Abdul Haleem <abdhalee@linux.vnet.ibm.com>
Cc: Baoquan He <bhe@redhat.com>
Cc: Daniel Jordan <daniel.m.jordan@oracle.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jan Kara <jack@suse.cz>
Cc: Jérôme Glisse <jglisse@redhat.com>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Souptick Joarder <jrdr.linux@gmail.com>
Cc: Steven Sistare <steven.sistare@oracle.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Wei Yang <richard.weiyang@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
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sparse_init() requires to temporary allocate two large buffers: usemap_map
and map_map. Baoquan He has identified that these buffers are so large
that Linux is not bootable on small memory machines, such as a kdump boot.
The buffers are especially large when CONFIG_X86_5LEVEL is set, as they
are scaled to the maximum physical memory size.
Baoquan provided a fix, which reduces these sizes of these buffers, but it
is much better to get rid of them entirely.
Add a new way to initialize sparse memory: sparse_init_nid(), which only
operates within one memory node, and thus allocates memory either in large
contiguous block or allocates section by section. This eliminates the
need for use of temporary buffers.
For simplified bisecting and review temporarly call sparse_init()
new_sparse_init(), the new interface is going to be enabled as well as old
code removed in the next patch.
Link: http://lkml.kernel.org/r/20180712203730.8703-5-pasha.tatashin@oracle.com
Signed-off-by: Pavel Tatashin <pasha.tatashin@oracle.com>
Reviewed-by: Oscar Salvador <osalvador@suse.de>
Tested-by: Oscar Salvador <osalvador@suse.de>
Tested-by: Michael Ellerman <mpe@ellerman.id.au> [powerpc]
Cc: Pasha Tatashin <Pavel.Tatashin@microsoft.com>
Cc: Abdul Haleem <abdhalee@linux.vnet.ibm.com>
Cc: Baoquan He <bhe@redhat.com>
Cc: Daniel Jordan <daniel.m.jordan@oracle.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jan Kara <jack@suse.cz>
Cc: Jérôme Glisse <jglisse@redhat.com>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Souptick Joarder <jrdr.linux@gmail.com>
Cc: Steven Sistare <steven.sistare@oracle.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Wei Yang <richard.weiyang@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
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Now that both variants of sparse memory use the same buffers to populate
memory map, we can move sparse_buffer_init()/sparse_buffer_fini() to the
common place.
Link: http://lkml.kernel.org/r/20180712203730.8703-4-pasha.tatashin@oracle.com
Signed-off-by: Pavel Tatashin <pasha.tatashin@oracle.com>
Tested-by: Michael Ellerman <mpe@ellerman.id.au> [powerpc]
Tested-by: Oscar Salvador <osalvador@suse.de>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Pasha Tatashin <Pavel.Tatashin@microsoft.com>
Cc: Abdul Haleem <abdhalee@linux.vnet.ibm.com>
Cc: Baoquan He <bhe@redhat.com>
Cc: Daniel Jordan <daniel.m.jordan@oracle.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jan Kara <jack@suse.cz>
Cc: Jérôme Glisse <jglisse@redhat.com>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Souptick Joarder <jrdr.linux@gmail.com>
Cc: Steven Sistare <steven.sistare@oracle.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Wei Yang <richard.weiyang@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
|
non-vmemmap sparse also allocated large contiguous chunk of memory, and if
fails falls back to smaller allocations. Use the same functions to
allocate buffer as the vmemmap-sparse
Link: http://lkml.kernel.org/r/20180712203730.8703-3-pasha.tatashin@oracle.com
Signed-off-by: Pavel Tatashin <pasha.tatashin@oracle.com>
Tested-by: Michael Ellerman <mpe@ellerman.id.au> [powerpc]
Reviewed-by: Oscar Salvador <osalvador@suse.de>
Tested-by: Oscar Salvador <osalvador@suse.de>
Cc: Pasha Tatashin <Pavel.Tatashin@microsoft.com>
Cc: Abdul Haleem <abdhalee@linux.vnet.ibm.com>
Cc: Baoquan He <bhe@redhat.com>
Cc: Daniel Jordan <daniel.m.jordan@oracle.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jan Kara <jack@suse.cz>
Cc: Jérôme Glisse <jglisse@redhat.com>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Souptick Joarder <jrdr.linux@gmail.com>
Cc: Steven Sistare <steven.sistare@oracle.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Wei Yang <richard.weiyang@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
|
Patch series "sparse_init rewrite", v6.
In sparse_init() we allocate two large buffers to temporary hold usemap
and memmap for the whole machine. However, we can avoid doing that if
we changed sparse_init() to operated on per-node bases instead of doing
it on the whole machine beforehand.
As shown by Baoquan
http://lkml.kernel.org/r/20180628062857.29658-1-bhe@redhat.com
The buffers are large enough to cause machine stop to boot on small
memory systems.
Another benefit of these changes is that they also obsolete
CONFIG_SPARSEMEM_ALLOC_MEM_MAP_TOGETHER.
This patch (of 5):
When struct pages are allocated for sparse-vmemmap VA layout, we first try
to allocate one large buffer, and than if that fails allocate struct pages
for each section as we go.
The code that allocates buffer is uses global variables and is spread
across several call sites.
Cleanup the code by introducing three functions to handle the global
buffer:
sparse_buffer_init() initialize the buffer
sparse_buffer_fini() free the remaining part of the buffer
sparse_buffer_alloc() alloc from the buffer, and if buffer is empty
return NULL
Define these functions in sparse.c instead of sparse-vmemmap.c because
later we will use them for non-vmemmap sparse allocations as well.
[akpm@linux-foundation.org: use PTR_ALIGN()]
[akpm@linux-foundation.org: s/BUG_ON/WARN_ON/]
Link: http://lkml.kernel.org/r/20180712203730.8703-2-pasha.tatashin@oracle.com
Signed-off-by: Pavel Tatashin <pasha.tatashin@oracle.com>
Tested-by: Michael Ellerman <mpe@ellerman.id.au> [powerpc]
Reviewed-by: Oscar Salvador <osalvador@suse.de>
Tested-by: Oscar Salvador <osalvador@suse.de>
Cc: Pasha Tatashin <Pavel.Tatashin@microsoft.com>
Cc: Steven Sistare <steven.sistare@oracle.com>
Cc: Daniel Jordan <daniel.m.jordan@oracle.com>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Jan Kara <jack@suse.cz>
Cc: Jérôme Glisse <jglisse@redhat.com>
Cc: Souptick Joarder <jrdr.linux@gmail.com>
Cc: Baoquan He <bhe@redhat.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Wei Yang <richard.weiyang@gmail.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Abdul Haleem <abdhalee@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
|
When using 1GiB pages during early boot, use the new
memblock_virt_alloc_try_nid_raw() to allocate memory without zeroing it.
Zeroing out hundreds or thousands of GiB in a single core memset() call
is very slow, and can make early boot last upwards of 20-30 minutes on
multi TiB machines.
The memory does not need to be zero'd as the hugetlb pages are always
zero'd on page fault.
Tested: Booted with ~3800 1G pages, and it booted successfully in
roughly the same amount of time as with 0, as opposed to the 25+ minutes
it would take before.
Link: http://lkml.kernel.org/r/20180711213313.92481-1-cannonmatthews@google.com
Signed-off-by: Cannon Matthews <cannonmatthews@google.com>
Acked-by: Mike Kravetz <mike.kravetz@oracle.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Andres Lagar-Cavilla <andreslc@google.com>
Cc: Peter Feiner <pfeiner@google.com>
Cc: David Matlack <dmatlack@google.com>
Cc: Greg Thelen <gthelen@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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To improve page allocator's performance for order-0 pages, each CPU has
a Per-CPU-Pageset(PCP) per zone. Whenever an order-0 page is needed,
PCP will be checked first before asking pages from Buddy. When PCP is
used up, a batch of pages will be fetched from Buddy to improve
performance and the size of batch can affect performance.
zone's batch size gets doubled last time by commit ba56e91c9401("mm:
page_alloc: increase size of per-cpu-pages") over ten years ago. Since
then, CPU has envolved a lot and CPU's cache sizes also increased.
Dave Hansen is concerned the current batch size doesn't fit well with
modern hardware and suggested me to do two things: first, use a page
allocator intensive benchmark, e.g. will-it-scale/page_fault1 to find
out how performance changes with different batch sizes on various
machines and then choose a new default batch size; second, see how this
new batch size work with other workloads.
In the first test, we saw performance gains on high-core-count systems
and little to no effect on older systems with more modest core counts.
In this phase's test data, two candidates: 63 and 127 are chosen.
In the second step, ebizzy, oltp, kbuild, pigz, netperf, vm-scalability
and more will-it-scale sub-tests are tested to see how these two
candidates work with these workloads and decides a new default according
to their results.
Most test results are flat. will-it-scale/page_fault2 process mode has
10%-18% performance increase on 4-sockets Skylake and Broadwell.
vm-scalability/lru-file-mmap-read has 17%-47% performance increase for
4-sockets servers while for 2-sockets servers, it caused 3%-8% performance
drop. Further analysis showed that, with a larger pcp->batch and thus
larger pcp->high(the relationship of pcp->high=6 * pcp->batch is
maintained in this patch), zone lock contention shifted to LRU add side
lock contention and that caused performance drop. This performance drop
might be mitigated by others' work on optimizing LRU lock.
Another downside of increasing pcp->batch is, when PCP is used up and need
to fetch a batch of pages from Buddy, since batch is increased, that time
can be longer than before. My understanding is, this doesn't affect
slowpath where direct reclaim and compaction dominates. For fastpath,
throughput is a win(according to will-it-scale/page_fault1) but worst
latency can be larger now.
Overall, I think double the batch size from 31 to 63 is relatively safe
and provide good performance boost for high-core-count systems.
The two phase's test results are listed below(all tests are done with THP
disabled).
Phase one(will-it-scale/page_fault1) test results:
Skylake-EX: increased batch size has a good effect on zone->lock
contention, though LRU contention will rise at the same time and
limited the final performance increase.
batch score change zone_contention lru_contention total_contention
31 15345900 +0.00% 64% 8% 72%
53 17903847 +16.67% 32% 38% 70%
63 17992886 +17.25% 24% 45% 69%
73 18022825 +17.44% 10% 61% 71%
119 18023401 +17.45% 4% 66% 70%
127 18029012 +17.48% 3% 66% 69%
137 18036075 +17.53% 4% 66% 70%
165 18035964 +17.53% 2% 67% 69%
188 18101105 +17.95% 2% 67% 69%
223 18130951 +18.15% 2% 67% 69%
255 18118898 +18.07% 2% 67% 69%
267 18101559 +17.96% 2% 67% 69%
299 18160468 +18.34% 2% 68% 70%
320 18139845 +18.21% 2% 67% 69%
393 18160869 +18.34% 2% 68% 70%
424 18170999 +18.41% 2% 68% 70%
458 18144868 +18.24% 2% 68% 70%
467 18142366 +18.22% 2% 68% 70%
498 18154549 +18.30% 1% 68% 69%
511 18134525 +18.17% 1% 69% 70%
Broadwell-EX: similar pattern as Skylake-EX.
batch score change zone_contention lru_contention total_contention
31 16703983 +0.00% 67% 7% 74%
53 18195393 +8.93% 43% 28% 71%
63 18288885 +9.49% 38% 33% 71%
73 18344329 +9.82% 35% 37% 72%
119 18535529 +10.96% 24% 46% 70%
127 18513596 +10.83% 23% 48% 71%
137 18514327 +10.84% 23% 48% 71%
165 18511840 +10.82% 22% 49% 71%
188 18593478 +11.31% 17% 53% 70%
223 18601667 +11.36% 17% 52% 69%
255 18774825 +12.40% 12% 58% 70%
267 18754781 +12.28% 9% 60% 69%
299 18892265 +13.10% 7% 63% 70%
320 18873812 +12.99% 8% 62% 70%
393 18891174 +13.09% 6% 64% 70%
424 18975108 +13.60% 6% 64% 70%
458 18932364 +13.34% 8% 62% 70%
467 18960891 +13.51% 5% 65% 70%
498 18944526 +13.41% 5% 64% 69%
511 18960839 +13.51% 5% 64% 69%
Skylake-EP: although increased batch reduced zone->lock contention, but
the effect is not as good as EX: zone->lock contention is still as high as
20% with a very high batch value instead of 1% on Skylake-EX or 5% on
Broadwell-EX. Also, total_contention actually decreased with a higher
batch but that doesn't translate to performance increase.
batch score change zone_contention lru_contention total_contention
31 9554867 +0.00% 66% 3% 69%
53 9855486 +3.15% 63% 3% 66%
63 9980145 +4.45% 62% 4% 66%
73 10092774 +5.63% 62% 5% 67%
119 10310061 +7.90% 45% 19% 64%
127 10342019 +8.24% 42% 19% 61%
137 10358182 +8.41% 42% 21% 63%
165 10397060 +8.81% 37% 24% 61%
188 10341808 +8.24% 34% 26% 60%
223 10349135 +8.31% 31% 27% 58%
255 10327189 +8.08% 28% 29% 57%
267 10344204 +8.26% 27% 29% 56%
299 10325043 +8.06% 25% 30% 55%
320 10310325 +7.91% 25% 31% 56%
393 10293274 +7.73% 21% 31% 52%
424 10311099 +7.91% 21% 32% 53%
458 10321375 +8.02% 21% 32% 53%
467 10303881 +7.84% 21% 32% 53%
498 10332462 +8.14% 20% 33% 53%
511 10325016 +8.06% 20% 32% 52%
Broadwell-EP: zone->lock and lru lock had an agreement to make sure
performance doesn't increase and they successfully managed to keep total
contention at 70%.
batch score change zone_contention lru_contention total_contention
31 10121178 +0.00% 19% 50% 69%
53 10142366 +0.21% 6% 63% 69%
63 10117984 -0.03% 11% 58% 69%
73 10123330 +0.02% 7% 63% 70%
119 10108791 -0.12% 2% 67% 69%
127 10166074 +0.44% 3% 66% 69%
137 10141574 +0.20% 3% 66% 69%
165 10154499 +0.33% 2% 68% 70%
188 10124921 +0.04% 2% 67% 69%
223 10137399 +0.16% 2% 67% 69%
255 10143289 +0.22% 0% 68% 68%
267 10123535 +0.02% 1% 68% 69%
299 10140952 +0.20% 0% 68% 68%
320 10163170 +0.41% 0% 68% 68%
393 10000633 -1.19% 0% 69% 69%
424 10087998 -0.33% 0% 69% 69%
458 10187116 +0.65% 0% 69% 69%
467 10146790 +0.25% 0% 69% 69%
498 10197958 +0.76% 0% 69% 69%
511 10152326 +0.31% 0% 69% 69%
Haswell-EP: similar to Broadwell-EP.
batch score change zone_contention lru_contention total_contention
31 10442205 +0.00% 14% 48% 62%
53 10442255 +0.00% 5% 57% 62%
63 10452059 +0.09% 6% 57% 63%
73 10482349 +0.38% 5% 59% 64%
119 10454644 +0.12% 3% 60% 63%
127 10431514 -0.10% 3% 59% 62%
137 10423785 -0.18% 3% 60% 63%
165 10481216 +0.37% 2% 61% 63%
188 10448755 +0.06% 2% 61% 63%
223 10467144 +0.24% 2% 61% 63%
255 10480215 +0.36% 2% 61% 63%
267 10484279 +0.40% 2% 61% 63%
299 10466450 +0.23% 2% 61% 63%
320 10452578 +0.10% 2% 61% 63%
393 10499678 +0.55% 1% 62% 63%
424 10481454 +0.38% 1% 62% 63%
458 10473562 +0.30% 1% 62% 63%
467 10484269 +0.40% 0% 62% 62%
498 10505599 +0.61% 0% 62% 62%
511 10483395 +0.39% 0% 62% 62%
Westmere-EP: contention is pretty small so not interesting. Note too high
a batch value could hurt performance.
batch score change zone_contention lru_contention total_contention
31 4831523 +0.00% 2% 3% 5%
53 4834086 +0.05% 2% 4% 6%
63 4834262 +0.06% 2% 3% 5%
73 4832851 +0.03% 2% 4% 6%
119 4830534 -0.02% 1% 3% 4%
127 4827461 -0.08% 1% 4% 5%
137 4827459 -0.08% 1% 3% 4%
165 4820534 -0.23% 0% 4% 4%
188 4817947 -0.28% 0% 3% 3%
223 4809671 -0.45% 0% 3% 3%
255 4802463 -0.60% 0% 4% 4%
267 4801634 -0.62% 0% 3% 3%
299 4798047 -0.69% 0% 3% 3%
320 4793084 -0.80% 0% 3% 3%
393 4785877 -0.94% 0% 3% 3%
424 4782911 -1.01% 0% 3% 3%
458 4779346 -1.08% 0% 3% 3%
467 4780306 -1.06% 0% 3% 3%
498 4780589 -1.05% 0% 3% 3%
511 4773724 -1.20% 0% 3% 3%
Skylake-Desktop: similar to Westmere-EP, nothing interesting.
batch score change zone_contention lru_contention total_contention
31 3906608 +0.00% 2% 3% 5%
53 3940164 +0.86% 2% 3% 5%
63 3937289 +0.79% 2% 3% 5%
73 3940201 +0.86% 2% 3% 5%
119 3933240 +0.68% 2% 3% 5%
127 3930514 +0.61% 2% 4% 6%
137 3938639 +0.82% 0% 3% 3%
165 3908755 +0.05% 0% 3% 3%
188 3905621 -0.03% 0% 3% 3%
223 3903015 -0.09% 0% 4% 4%
255 3889480 -0.44% 0% 3% 3%
267 3891669 -0.38% 0% 4% 4%
299 3898728 -0.20% 0% 4% 4%
320 3894547 -0.31% 0% 4% 4%
393 3875137 -0.81% 0% 4% 4%
424 3874521 -0.82% 0% 3% 3%
458 3880432 -0.67% 0% 4% 4%
467 3888715 -0.46% 0% 3% 3%
498 3888633 -0.46% 0% 4% 4%
511 3875305 -0.80% 0% 5% 5%
Haswell-Desktop: zone->lock is pretty low as other desktops, though lru
contention is higher than other desktops.
batch score change zone_contention lru_contention total_contention
31 3511158 +0.00% 2% 5% 7%
53 3555445 +1.26% 2% 6% 8%
63 3561082 +1.42% 2% 6% 8%
73 3547218 +1.03% 2% 6% 8%
119 3571319 +1.71% 1% 7% 8%
127 3549375 +1.09% 0% 6% 6%
137 3560233 +1.40% 0% 6% 6%
165 3555176 +1.25% 2% 6% 8%
188 3551501 +1.15% 0% 8% 8%
223 3531462 +0.58% 0% 7% 7%
255 3570400 +1.69% 0% 7% 7%
267 3532235 +0.60% 1% 8% 9%
299 3562326 +1.46% 0% 6% 6%
320 3553569 +1.21% 0% 8% 8%
393 3539519 +0.81% 0% 7% 7%
424 3549271 +1.09% 0% 8% 8%
458 3528885 +0.50% 0% 8% 8%
467 3526554 +0.44% 0% 7% 7%
498 3525302 +0.40% 0% 9% 9%
511 3527556 +0.47% 0% 8% 8%
Sandybridge-Desktop: the 0% contention isn't accurate but caused by
dropped fractional part. Since multiple contention path's contentions
are all under 1% here, with some arithmetic operations like add, the
final deviation could be as large as 3%.
batch score change zone_contention lru_contention total_contention
31 1744495 +0.00% 0% 0% 0%
53 1755341 +0.62% 0% 0% 0%
63 1758469 +0.80% 0% 0% 0%
73 1759626 +0.87% 0% 0% 0%
119 1770417 +1.49% 0% 0% 0%
127 1768252 +1.36% 0% 0% 0%
137 1767848 +1.34% 0% 0% 0%
165 1765088 +1.18% 0% 0% 0%
188 1766918 +1.29% 0% 0% 0%
223 1767866 +1.34% 0% 0% 0%
255 1768074 +1.35% 0% 0% 0%
267 1763187 +1.07% 0% 0% 0%
299 1765620 +1.21% 0% 0% 0%
320 1767603 +1.32% 0% 0% 0%
393 1764612 +1.15% 0% 0% 0%
424 1758476 +0.80% 0% 0% 0%
458 1758593 +0.81% 0% 0% 0%
467 1757915 +0.77% 0% 0% 0%
498 1753363 +0.51% 0% 0% 0%
511 1755548 +0.63% 0% 0% 0%
Phase two test results:
Note: all percent change is against base(batch=31).
ebizzy.throughput (higer is better)
machine batch=31 batch=63 batch=127
lkp-skl-4sp1 2410037±7% 2600451±2% +7.9% 2602878 +8.0%
lkp-bdw-ex1 1493328 1489243 -0.3% 1492145 -0.1%
lkp-skl-2sp2 1329674 1345891 +1.2% 1351056 +1.6%
lkp-bdw-ep2 711511 711511 0.0% 710708 -0.1%
lkp-wsm-ep2 75750 75528 -0.3% 75441 -0.4%
lkp-skl-d01 264126 262791 -0.5% 264113 +0.0%
lkp-hsw-d01 176601 176328 -0.2% 176368 -0.1%
lkp-sb02 98937 98937 +0.0% 99030 +0.1%
kbuild.buildtime (less is better)
machine batch=31 batch=63 batch=127
lkp-skl-4sp1 107.00 107.67 +0.6% 107.11 +0.1%
lkp-bdw-ex1 97.33 97.33 +0.0% 97.42 +0.1%
lkp-skl-2sp2 180.00 179.83 -0.1% 179.83 -0.1%
lkp-bdw-ep2 178.17 179.17 +0.6% 177.50 -0.4%
lkp-wsm-ep2 737.00 738.00 +0.1% 738.00 +0.1%
lkp-skl-d01 642.00 653.00 +1.7% 653.00 +1.7%
lkp-hsw-d01 1310.00 1316.00 +0.5% 1311.00 +0.1%
netperf/TCP_STREAM.Throughput_total_Mbps (higher is better)
machine batch=31 batch=63 batch=127
lkp-skl-4sp1 948790 947144 -0.2% 948333 -0.0%
lkp-bdw-ex1 904224 904366 +0.0% 904926 +0.1%
lkp-skl-2sp2 239731 239607 -0.1% 239565 -0.1%
lk-bdw-ep2 365764 365933 +0.0% 365951 +0.1%
lkp-wsm-ep2 93736 93803 +0.1% 93808 +0.1%
lkp-skl-d01 77314 77303 -0.0% 77375 +0.1%
lkp-hsw-d01 58617 60387 +3.0% 60208 +2.7%
lkp-sb02 29990 30137 +0.5% 30103 +0.4%
oltp.transactions (higer is better)
machine batch=31 batch=63 batch=127
lkp-bdw-ex1 9073276 9100377 +0.3% 9036344 -0.4%
lkp-skl-2sp2 8898717 8852054 -0.5% 8894459 -0.0%
lkp-bdw-ep2 13426155 13384654 -0.3% 13333637 -0.7%
lkp-hsw-ep2 13146314 13232784 +0.7% 13193163 +0.4%
lkp-wsm-ep2 5035355 5019348 -0.3% 5033418 -0.0%
lkp-skl-d01 418485 4413339 -0.1% 4419039 +0.0%
lkp-hsw-d01 3517817±5% 3396120±3% -3.5% 3455138±3% -1.8%
pigz.throughput (higer is better)
machine batch=31 batch=63 batch=127
lkp-skl-4sp1 1.513e+08 1.507e+08 -0.4% 1.511e+08 -0.2%
lkp-bdw-ex1 2.060e+08 2.052e+08 -0.4% 2.044e+08 -0.8%
lkp-skl-2sp2 8.836e+08 8.845e+08 +0.1% 8.836e+08 -0.0%
lkp-bdw-ep2 8.275e+08 8.464e+08 +2.3% 8.330e+08 +0.7%
lkp-wsm-ep2 2.224e+08 2.221e+08 -0.2% 2.218e+08 -0.3%
lkp-skl-d01 1.177e+08 1.177e+08 -0.0% 1.176e+08 -0.1%
lkp-hsw-d01 1.154e+08 1.154e+08 +0.1% 1.154e+08 -0.0%
lkp-sb02 0.633e+08 0.633e+08 +0.1% 0.633e+08 +0.0%
will-it-scale.malloc1.processes (higher is better)
machine batch=31 batch=63 batch=127
lkp-skl-4sp1 620181 620484 +0.0% 620240 +0.0%
lkp-bdw-ex1 1403610 1401201 -0.2% 1417900 +1.0%
lkp-skl-2sp2 1288097 1284145 -0.3% 1283907 -0.3%
lkp-bdw-ep2 1427879 1427675 -0.0% 1428266 +0.0%
lkp-hsw-ep2 1362546 1353965 -0.6% 1354759 -0.6%
lkp-wsm-ep2 2099657 2107576 +0.4% 2100226 +0.0%
lkp-skl-d01 1476835 1476358 -0.0% 1474487 -0.2%
lkp-hsw-d01 1308810 1303429 -0.4% 1301299 -0.6%
lkp-sb02 589286 589284 -0.0% 588101 -0.2%
will-it-scale.malloc1.threads (higher is better)
machine batch=31 batch=63 batch=127
lkp-skl-4sp1 21289 21125 -0.8% 21241 -0.2%
lkp-bdw-ex1 28114 28089 -0.1% 28007 -0.4%
lkp-skl-2sp2 91866 91946 +0.1% 92723 +0.9%
lkp-bdw-ep2 37637 37501 -0.4% 37317 -0.9%
lkp-hsw-ep2 43673 43590 -0.2% 43754 +0.2%
lkp-wsm-ep2 28577 28298 -1.0% 28545 -0.1%
lkp-skl-d01 175277 173343 -1.1% 173082 -1.3%
lkp-hsw-d01 130303 129566 -0.6% 129250 -0.8%
lkp-sb02 113742±3% 116911 +2.8% 116417±3% +2.4%
will-it-scale.malloc2.processes (higer is better)
machine batch=31 batch=63 batch=127
lkp-skl-4sp1 1.206e+09 1.206e+09 -0.0% 1.206e+09 +0.0%
lkp-bdw-ex1 1.319e+09 1.319e+09 -0.0% 1.319e+09 +0.0%
lkp-skl-2sp2 8.000e+08 8.021e+08 +0.3% 7.995e+08 -0.1%
lkp-bdw-ep2 6.582e+08 6.634e+08 +0.8% 6.513e+08 -1.1%
lkp-hsw-ep2 6.671e+08 6.669e+08 -0.0% 6.665e+08 -0.1%
lkp-wsm-ep2 1.805e+08 1.806e+08 +0.0% 1.804e+08 -0.1%
lkp-skl-d01 1.611e+08 1.611e+08 -0.0% 1.610e+08 -0.0%
lkp-hsw-d01 1.333e+08 1.332e+08 -0.0% 1.332e+08 -0.0%
lkp-sb02 82485104 82478206 -0.0% 82473546 -0.0%
will-it-scale.malloc2.threads (higer is better)
machine batch=31 batch=63 batch=127
lkp-skl-4sp1 1.574e+09 1.574e+09 -0.0% 1.574e+09 -0.0%
lkp-bdw-ex1 1.737e+09 1.737e+09 +0.0% 1.737e+09 -0.0%
lkp-skl-2sp2 9.161e+08 9.162e+08 +0.0% 9.181e+08 +0.2%
lkp-bdw-ep2 7.856e+08 8.015e+08 +2.0% 8.113e+08 +3.3%
lkp-hsw-ep2 6.908e+08 6.904e+08 -0.1% 6.907e+08 -0.0%
lkp-wsm-ep2 2.409e+08 2.409e+08 +0.0% 2.409e+08 -0.0%
lkp-skl-d01 1.199e+08 1.199e+08 -0.0% 1.199e+08 -0.0%
lkp-hsw-d01 1.029e+08 1.029e+08 -0.0% 1.029e+08 +0.0%
lkp-sb02 68081213 68061423 -0.0% 68076037 -0.0%
will-it-scale.page_fault2.processes (higer is better)
machine batch=31 batch=63 batch=127
lkp-skl-4sp1 14509125±4% 16472364 +13.5% 17123117 +18.0%
lkp-bdw-ex1 14736381 16196588 +9.9% 16364011 +11.0%
lkp-skl-2sp2 6354925 6435444 +1.3% 6436644 +1.3%
lkp-bdw-ep2 8749584 8834422 +1.0% 8827179 +0.9%
lkp-hsw-ep2 8762591 8845920 +1.0% 8825697 +0.7%
lkp-wsm-ep2 3036083 3030428 -0.2% 3021741 -0.5%
lkp-skl-d01 2307834 2304731 -0.1% 2286142 -0.9%
lkp-hsw-d01 1806237 1800786 -0.3% 1795943 -0.6%
lkp-sb02 842616 837844 -0.6% 833921 -1.0%
will-it-scale.page_fault2.threads
machine batch=31 batch=63 batch=127
lkp-skl-4sp1 1623294 1615132±2% -0.5% 1656777 +2.1%
lkp-bdw-ex1 1995714 2025948 +1.5% 2113753±3% +5.9%
lkp-skl-2sp2 2346708 2415591 +2.9% 2416919 +3.0%
lkp-bdw-ep2 2342564 2344882 +0.1% 2300206 -1.8%
lkp-hsw-ep2 1820658 1831681 +0.6% 1844057 +1.3%
lkp-wsm-ep2 1725482 1733774 +0.5% 1740517 +0.9%
lkp-skl-d01 1832833 1823628 -0.5% 1806489 -1.4%
lkp-hsw-d01 1427913 1427287 -0.0% 1420226 -0.5%
lkp-sb02 750626 748615 -0.3% 746621 -0.5%
will-it-scale.page_fault3.processes (higher is better)
machine batch=31 batch=63 batch=127
lkp-skl-4sp1 24382726 24400317 +0.1% 24668774 +1.2%
lkp-bdw-ex1 35399750 35683124 +0.8% 35829492 +1.2%
lkp-skl-2sp2 28136820 28068248 -0.2% 28147989 +0.0%
lkp-bdw-ep2 37269077 37459490 +0.5% 37373073 +0.3%
lkp-hsw-ep2 36224967 36114085 -0.3% 36104908 -0.3%
lkp-wsm-ep2 16820457 16911005 +0.5% 16968596 +0.9%
lkp-skl-d01 7721138 7725904 +0.1% 7756740 +0.5%
lkp-hsw-d01 7611979 7650928 +0.5% 7651323 +0.5%
lkp-sb02 3781546 3796502 +0.4% 3796827 +0.4%
will-it-scale.page_fault3.threads (higer is better)
machine batch=31 batch=63 batch=127
lkp-skl-4sp1 1865820±3% 1900917±2% +1.9% 1826245±4% -2.1%
lkp-bdw-ex1 3094060 3148326 +1.8% 3150036 +1.8%
lkp-skl-2sp2 3952940 3953898 +0.0% 3989360 +0.9%
lkp-bdw-ep2 3420373±3% 3643964 +6.5% 3644910±5% +6.6%
lkp-hsw-ep2 2609635±2% 2582310±3% -1.0% 2780459 +6.5%
lkp-wsm-ep2 4395001 4417196 +0.5% 4432499 +0.9%
lkp-skl-d01 5363977 5400003 +0.7% 5411370 +0.9%
lkp-hsw-d01 5274131 5311294 +0.7% 5319359 +0.9%
lkp-sb02 2917314 2913004 -0.1% 2935286 +0.6%
will-it-scale.read1.processes (higer is better)
machine batch=31 batch=63 batch=127
lkp-skl-4sp1 73762279±14% 69322519±10% -6.0% 69349855±13% -6.0% (result unstable)
lkp-bdw-ex1 1.701e+08 1.704e+08 +0.1% 1.705e+08 +0.2%
lkp-skl-2sp2 63111570 63113953 +0.0% 63836573 +1.1%
lkp-bdw-ep2 79247409 79424610 +0.2% 78012656 -1.6%
lkp-hsw-ep2 67677026 68308800 +0.9% 67539106 -0.2%
lkp-wsm-ep2 13339630 13939817 +4.5% 13766865 +3.2%
lkp-skl-d01 10969487 10972650 +0.0% no data
lkp-hsw-d01 9857342±2% 10080592±2% +2.3% 10131560 +2.8%
lkp-sb02 5189076 5197473 +0.2% 5163253 -0.5%
will-it-scale.read1.threads (higher is better)
machine batch=31 batch=63 batch=127
lkp-skl-4sp1 62468045±12% 73666726±7% +17.9% 79553123±12% +27.4% (result unstable)
lkp-bdw-ex1 1.62e+08 1.624e+08 +0.3% 1.614e+08 -0.3%
lkp-skl-2sp2 58319780 59181032 +1.5% 59821353 +2.6%
lkp-bdw-ep2 74057992 75698171 +2.2% 74990869 +1.3%
lkp-hsw-ep2 63672959 63639652 -0.1% 64387051 +1.1%
lkp-wsm-ep2 13489943 13526058 +0.3% 13259032 -1.7%
lkp-skl-d01 10297906 10338796 +0.4% 10407328 +1.1%
lkp-hsw-d01 9636721 9667376 +0.3% 9341147 -3.1%
lkp-sb02 4801938 4804496 +0.1% 4802290 +0.0%
will-it-scale.write1.processes (higer is better)
machine batch=31 batch=63 batch=127
lkp-skl-4sp1 1.111e+08 1.104e+08±2% -0.7% 1.122e+08±2% +1.0%
lkp-bdw-ex1 1.392e+08 1.399e+08 +0.5% 1.397e+08 +0.4%
lkp-skl-2sp2 59369233 58994841 -0.6% 58715168 -1.1%
lkp-bdw-ep2 61820979 CPU throttle 63593123 +2.9%
lkp-hsw-ep2 57897587 57435605 -0.8% 56347450 -2.7%
lkp-wsm-ep2 7814203 7918017±2% +1.3% 7669068 -1.9%
lkp-skl-d01 8886557 8971422 +1.0% 8818366 -0.8%
lkp-hsw-d01 9171001±5% 9189915 +0.2% 9483909 +3.4%
lkp-sb02 4475406 4475294 -0.0% 4501756 +0.6%
will-it-scale.write1.threads (higer is better)
machine batch=31 batch=63 batch=127
lkp-skl-4sp1 1.058e+08 1.055e+08±2% -0.2% 1.065e+08 +0.7%
lkp-bdw-ex1 1.316e+08 1.300e+08 -1.2% 1.308e+08 -0.6%
lkp-skl-2sp2 54492421 56086678 +2.9% 55975657 +2.7%
lkp-bdw-ep2 59360449 59003957 -0.6% 58101262 -2.1%
lkp-hsw-ep2 53346346±2% 52530876 -1.5% 52902487 -0.8%
lkp-wsm-ep2 7774006 7800092±2% +0.3% 7558833 -2.8%
lkp-skl-d01 8346174 8235695 -1.3% no data
lkp-hsw-d01 8636244 8655731 +0.2% 8658868 +0.3%
lkp-sb02 4181820 4204107 +0.5% 4182992 +0.0%
vm-scalability.anon-r-rand.throughput (higher is better)
machine batch=31 batch=63 batch=127
lkp-skl-4sp1 11933873±3% 12356544±2% +3.5% 12188624 +2.1%
lkp-bdw-ex1 7114424±2% 7330949±2% +3.0% 7392419 +3.9%
lkp-skl-2sp2 6773277±5% 6492332±8% -4.1% 6543962 -3.4%
lkp-bdw-ep2 7133846±4% 7233508 +1.4% 7013518±3% -1.7%
lkp-hsw-ep2 4576626 4527098 -1.1% 4551679 -0.5%
lkp-wsm-ep2 2583599 2592492 +0.3% 2588039 +0.2%
lkp-hsw-d01 998199±2% 1028311 +3.0% 1006460±2% +0.8%
lkp-sb02 570572 567854 -0.5% 568449 -0.4%
vm-scalability.anon-r-rand-mt.throughput (higher is better)
machine batch=31 batch=63 batch=127
lkp-skl-4sp1 1789419 1787830 -0.1% 1788208 -0.1%
lkp-bdw-ex1 3492595±2% 3554966±2% +1.8% 3558835±3% +1.9%
lkp-skl-2sp2 3856238±2% 3975403±4% +3.1% 3994600 +3.6%
lkp-bdw-ep2 3726963±11% 3809292±6% +2.2% 3871924±4% +3.9%
lkp-hsw-ep2 2131760±3% 2033578±4% -4.6% 2130727±6% -0.0%
lkp-wsm-ep2 2369731 2368384 -0.1% 2370252 +0.0%
lkp-skl-d01 1207128 1206220 -0.1% 1205801 -0.1%
lkp-hsw-d01 964317 992329±2% +2.9% 992099±2% +2.9%
lkp-sb02 567137 567346 +0.0% 566144 -0.2%
vm-scalability.lru-file-mmap-read.throughput (higher is better)
machine batch=31 batch=63 batch=127
lkp-skl-4sp1 19560469±6% 23018999 +17.7% 23418800 +19.7%
lkp-bdw-ex1 17769135±14% 26141676±3% +47.1% 26284723±5% +47.9%
lkp-skl-2sp2 14056512 13578884 -3.4% 13146214 -6.5%
lkp-bdw-ep2 15336542 14737654 -3.9% 14088159 -8.1%
lkp-hsw-ep2 16275498 15756296 -3.2% 15018090 -7.7%
lkp-wsm-ep2 11272160 11237231 -0.3% 11310047 +0.3%
lkp-skl-d01 7322119 7324569 +0.0% 7184148 -1.9%
lkp-hsw-d01 6449234 6404542 -0.7% 6356141 -1.4%
lkp-sb02 3517943 3520668 +0.1% 3527309 +0.3%
vm-scalability.lru-file-mmap-read-rand.throughput (higher is better)
machine batch=31 batch=63 batch=127
lkp-skl-4sp1 1689052 1697553 +0.5% 1698726 +0.6%
lkp-bdw-ex1 1675246 1699764 +1.5% 1712226 +2.2%
lkp-skl-2sp2 1800533 1799749 -0.0% 1800581 +0.0%
lkp-bdw-ep2 1807422 1807758 +0.0% 1804932 -0.1%
lkp-hsw-ep2 1809807 1808781 -0.1% 1807811 -0.1%
lkp-wsm-ep2 1800198 1802434 +0.1% 1801236 +0.1%
lkp-skl-d01 696689 695537 -0.2% 694106 -0.4%
lkp-hsw-d01 698364 698666 +0.0% 696686 -0.2%
lkp-sb02 258939 258787 -0.1% 258199 -0.3%
Link: http://lkml.kernel.org/r/20180711055855.29072-1-aaron.lu@intel.com
Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Suggested-by: Dave Hansen <dave.hansen@intel.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Cc: Huang Ying <ying.huang@intel.com>
Cc: Kemi Wang <kemi.wang@intel.com>
Cc: Tim Chen <tim.c.chen@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Add comments describing oom_lock's scope.
Requested-by: David Rientjes <rientjes@google.com>
Link: http://lkml.kernel.org/r/20180711120121.25635-1-mhocko@kernel.org
Signed-off-by: Michal Hocko <mhocko@suse.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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This reverts ee8f248d266e ("hugetlb: add phys addr to struct
huge_bootmem_page").
At one time powerpc used this field and supporting code. However that
was removed with commit 79cc38ded1e1 ("powerpc/mm/hugetlb: Add support
for reserving gigantic huge pages via kernel command line").
There are no users of this field and supporting code, so remove it.
Link: http://lkml.kernel.org/r/20180711195913.1294-1-mike.kravetz@oracle.com
Signed-off-by: Mike Kravetz <mike.kravetz@oracle.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: "Aneesh Kumar K . V" <aneesh.kumar@linux.vnet.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Cannon Matthews <cannonmatthews@google.com>
Cc: Becky Bruce <beckyb@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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