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Merge 3.10.107 into android-msm-bullhead-3.10-oreo-m5
Changes in 3.10.107: (270 commits)
Revert "Btrfs: don't delay inode ref updates during log, replay"
Btrfs: fix memory leak in reading btree blocks
ext4: use more strict checks for inodes_per_block on mount
ext4: fix in-superblock mount options processing
ext4: add sanity checking to count_overhead()
ext4: validate s_first_meta_bg at mount time
jbd2: don't leak modified metadata buffers on an aborted journal
ext4: fix fencepost in s_first_meta_bg validation
ext4: trim allocation requests to group size
ext4: preserve the needs_recovery flag when the journal is aborted
ext4: return EROFS if device is r/o and journal replay is needed
ext4: fix inode checksum calculation problem if i_extra_size is small
block: fix use-after-free in sys_ioprio_get()
block: allow WRITE_SAME commands with the SG_IO ioctl
block: fix del_gendisk() vs blkdev_ioctl crash
dm crypt: mark key as invalid until properly loaded
dm space map metadata: fix 'struct sm_metadata' leak on failed create
md/raid5: limit request size according to implementation limits
md:raid1: fix a dead loop when read from a WriteMostly disk
md linear: fix a race between linear_add() and linear_congested()
CIFS: Fix a possible memory corruption during reconnect
CIFS: Fix missing nls unload in smb2_reconnect()
CIFS: Fix a possible memory corruption in push locks
CIFS: remove bad_network_name flag
fs/cifs: make share unaccessible at root level mountable
cifs: Do not send echoes before Negotiate is complete
ocfs2: fix crash caused by stale lvb with fsdlm plugin
ocfs2: fix BUG_ON() in ocfs2_ci_checkpointed()
can: raw: raw_setsockopt: limit number of can_filter that can be set
can: peak: fix bad memory access and free sequence
can: c_can_pci: fix null-pointer-deref in c_can_start() - set device pointer
can: ti_hecc: add missing prepare and unprepare of the clock
can: bcm: fix hrtimer/tasklet termination in bcm op removal
can: usb_8dev: Fix memory leak of priv->cmd_msg_buffer
ALSA: hda - Fix up GPIO for ASUS ROG Ranger
ALSA: seq: Fix race at creating a queue
ALSA: seq: Don't handle loop timeout at snd_seq_pool_done()
ALSA: timer: Reject user params with too small ticks
ALSA: seq: Fix link corruption by event error handling
ALSA: seq: Fix racy cell insertions during snd_seq_pool_done()
ALSA: seq: Fix race during FIFO resize
ALSA: seq: Don't break snd_use_lock_sync() loop by timeout
ALSA: usb-audio: Add QuickCam Communicate Deluxe/S7500 to volume_control_quirks
usb: gadgetfs: restrict upper bound on device configuration size
USB: gadgetfs: fix unbounded memory allocation bug
USB: gadgetfs: fix use-after-free bug
USB: gadgetfs: fix checks of wTotalLength in config descriptors
xhci: free xhci virtual devices with leaf nodes first
USB: serial: io_ti: bind to interface after fw download
usb: gadget: composite: always set ep->mult to a sensible value
USB: cdc-acm: fix double usb_autopm_put_interface() in acm_port_activate()
USB: cdc-acm: fix open and suspend race
USB: cdc-acm: fix failed open not being detected
usb: dwc3: gadget: make Set Endpoint Configuration macros safe
usb: host: xhci-plat: Fix timeout on removal of hot pluggable xhci controllers
usb: dwc3: gadget: delay unmap of bounced requests
usb: hub: Wait for connection to be reestablished after port reset
usb: gadget: composite: correctly initialize ep->maxpacket
USB: UHCI: report non-PME wakeup signalling for Intel hardware
arm/xen: Use alloc_percpu rather than __alloc_percpu
xfs: set AGI buffer type in xlog_recover_clear_agi_bucket
xfs: clear _XBF_PAGES from buffers when readahead page
ssb: Fix error routine when fallback SPROM fails
drivers/gpu/drm/ast: Fix infinite loop if read fails
scsi: avoid a permanent stop of the scsi device's request queue
scsi: move the nr_phys_segments assert into scsi_init_io
scsi: don't BUG_ON() empty DMA transfers
scsi: storvsc: properly handle SRB_ERROR when sense message is present
scsi: storvsc: properly set residual data length on errors
target/pscsi: Fix TYPE_TAPE + TYPE_MEDIMUM_CHANGER export
scsi: lpfc: Add shutdown method for kexec
scsi: sr: Sanity check returned mode data
scsi: sd: Fix capacity calculation with 32-bit sector_t
s390/vmlogrdr: fix IUCV buffer allocation
libceph: verify authorize reply on connect
nfs_write_end(): fix handling of short copies
powerpc/ps3: Fix system hang with GCC 5 builds
sg_write()/bsg_write() is not fit to be called under KERNEL_DS
ftrace/x86: Set ftrace_stub to weak to prevent gcc from using short jumps to it
cred/userns: define current_user_ns() as a function
net: ti: cpmac: Fix compiler warning due to type confusion
tick/broadcast: Prevent NULL pointer dereference
netvsc: reduce maximum GSO size
drop_monitor: add missing call to genlmsg_end
drop_monitor: consider inserted data in genlmsg_end
igmp: Make igmp group member RFC 3376 compliant
HID: hid-cypress: validate length of report
Input: xpad - use correct product id for x360w controllers
Input: i8042 - add noloop quirk for Dell Embedded Box PC 3000
Input: iforce - validate number of endpoints before using them
Input: kbtab - validate number of endpoints before using them
Input: joydev - do not report stale values on first open
Input: tca8418 - use the interrupt trigger from the device tree
Input: mpr121 - handle multiple bits change of status register
Input: mpr121 - set missing event capability
Input: i8042 - add Clevo P650RS to the i8042 reset list
i2c: fix kernel memory disclosure in dev interface
vme: Fix wrong pointer utilization in ca91cx42_slave_get
sysrq: attach sysrq handler correctly for 32-bit kernel
pinctrl: sh-pfc: Do not unconditionally support PIN_CONFIG_BIAS_DISABLE
x86/PCI: Ignore _CRS on Supermicro X8DTH-i/6/iF/6F
qla2xxx: Fix crash due to null pointer access
ARM: 8634/1: hw_breakpoint: blacklist Scorpion CPUs
ARM: dts: da850-evm: fix read access to SPI flash
NFSv4: Ensure nfs_atomic_open set the dentry verifier on ENOENT
vmxnet3: Wake queue from reset work
Fix memory leaks in cifs_do_mount()
Compare prepaths when comparing superblocks
Move check for prefix path to within cifs_get_root()
Fix regression which breaks DFS mounting
apparmor: fix uninitialized lsm_audit member
apparmor: exec should not be returning ENOENT when it denies
apparmor: fix disconnected bind mnts reconnection
apparmor: internal paths should be treated as disconnected
apparmor: check that xindex is in trans_table bounds
apparmor: add missing id bounds check on dfa verification
apparmor: don't check for vmalloc_addr if kvzalloc() failed
apparmor: fix oops in profile_unpack() when policy_db is not present
apparmor: fix module parameters can be changed after policy is locked
apparmor: do not expose kernel stack
vfio/pci: Fix integer overflows, bitmask check
bna: Add synchronization for tx ring.
sg: Fix double-free when drives detach during SG_IO
move the call of __d_drop(anon) into __d_materialise_unique(dentry, anon)
serial: 8250_pci: Detach low-level driver during PCI error recovery
bnx2x: Correct ringparam estimate when DOWN
tile/ptrace: Preserve previous registers for short regset write
sysctl: fix proc_doulongvec_ms_jiffies_minmax()
ISDN: eicon: silence misleading array-bounds warning
ARC: [arcompact] handle unaligned access delay slot corner case
parisc: Don't use BITS_PER_LONG in userspace-exported swab.h header
nfs: Don't increment lock sequence ID after NFS4ERR_MOVED
ipv6: addrconf: Avoid addrconf_disable_change() using RCU read-side lock
af_unix: move unix_mknod() out of bindlock
drm/nouveau/nv1a,nv1f/disp: fix memory clock rate retrieval
crypto: api - Clear CRYPTO_ALG_DEAD bit before registering an alg
ata: sata_mv:- Handle return value of devm_ioremap.
mm/memory_hotplug.c: check start_pfn in test_pages_in_a_zone()
mm, fs: check for fatal signals in do_generic_file_read()
ARC: [arcompact] brown paper bag bug in unaligned access delay slot fixup
sched/debug: Don't dump sched debug info in SysRq-W
tcp: fix 0 divide in __tcp_select_window()
macvtap: read vnet_hdr_size once
packet: round up linear to header len
vfs: fix uninitialized flags in splice_to_pipe()
siano: make it work again with CONFIG_VMAP_STACK
futex: Move futex_init() to core_initcall
rtc: interface: ignore expired timers when enqueuing new timers
irda: Fix lockdep annotations in hashbin_delete().
tty: serial: msm: Fix module autoload
rtlwifi: rtl_usb: Fix for URB leaking when doing ifconfig up/down
af_packet: remove a stray tab in packet_set_ring()
MIPS: Fix special case in 64 bit IP checksumming.
mm: vmpressure: fix sending wrong events on underflow
ipc/shm: Fix shmat mmap nil-page protection
sd: get disk reference in sd_check_events()
samples/seccomp: fix 64-bit comparison macros
ath5k: drop bogus warning on drv_set_key with unsupported cipher
rdma_cm: fail iwarp accepts w/o connection params
NFSv4: fix getacl ERANGE for some ACL buffer sizes
bcma: use (get|put)_device when probing/removing device driver
powerpc/xmon: Fix data-breakpoint
KVM: VMX: use correct vmcs_read/write for guest segment selector/base
KVM: PPC: Book3S PR: Fix illegal opcode emulation
KVM: s390: fix task size check
s390: TASK_SIZE for kernel threads
xtensa: move parse_tag_fdt out of #ifdef CONFIG_BLK_DEV_INITRD
mac80211: flush delayed work when entering suspend
drm/ast: Fix test for VGA enabled
drm/ttm: Make sure BOs being swapped out are cacheable
fat: fix using uninitialized fields of fat_inode/fsinfo_inode
drivers: hv: Turn off write permission on the hypercall page
xhci: fix 10 second timeout on removal of PCI hotpluggable xhci controllers
crypto: improve gcc optimization flags for serpent and wp512
mtd: pmcmsp: use kstrndup instead of kmalloc+strncpy
cpmac: remove hopeless #warning
mvsas: fix misleading indentation
l2tp: avoid use-after-free caused by l2tp_ip_backlog_recv
net: don't call strlen() on the user buffer in packet_bind_spkt()
dccp: Unlock sock before calling sk_free()
tcp: fix various issues for sockets morphing to listen state
uapi: fix linux/packet_diag.h userspace compilation error
ipv6: avoid write to a possibly cloned skb
dccp: fix memory leak during tear-down of unsuccessful connection request
futex: Fix potential use-after-free in FUTEX_REQUEUE_PI
futex: Add missing error handling to FUTEX_REQUEUE_PI
give up on gcc ilog2() constant optimizations
cancel the setfilesize transation when io error happen
crypto: ghash-clmulni - Fix load failure
crypto: cryptd - Assign statesize properly
ACPI / video: skip evaluating _DOD when it does not exist
Drivers: hv: balloon: don't crash when memory is added in non-sorted order
s390/pci: fix use after free in dma_init
cpufreq: Fix and clean up show_cpuinfo_cur_freq()
igb: Workaround for igb i210 firmware issue
igb: add i211 to i210 PHY workaround
ipv4: provide stronger user input validation in nl_fib_input()
tcp: initialize icsk_ack.lrcvtime at session start time
ACM gadget: fix endianness in notifications
mmc: sdhci: Do not disable interrupts while waiting for clock
uvcvideo: uvc_scan_fallback() for webcams with broken chain
fbcon: Fix vc attr at deinit
crypto: algif_hash - avoid zero-sized array
virtio_balloon: init 1st buffer in stats vq
c6x/ptrace: Remove useless PTRACE_SETREGSET implementation
sparc/ptrace: Preserve previous registers for short regset write
metag/ptrace: Preserve previous registers for short regset write
metag/ptrace: Provide default TXSTATUS for short NT_PRSTATUS
metag/ptrace: Reject partial NT_METAG_RPIPE writes
libceph: force GFP_NOIO for socket allocations
ACPI: Fix incompatibility with mcount-based function graph tracing
ACPI / power: Avoid maybe-uninitialized warning
rtc: s35390a: make sure all members in the output are set
rtc: s35390a: implement reset routine as suggested by the reference
rtc: s35390a: improve irq handling
padata: avoid race in reordering
HID: hid-lg: Fix immediate disconnection of Logitech Rumblepad 2
HID: i2c-hid: Add sleep between POWER ON and RESET
drm/vmwgfx: NULL pointer dereference in vmw_surface_define_ioctl()
drm/vmwgfx: avoid calling vzalloc with a 0 size in vmw_get_cap_3d_ioctl()
drm/vmwgfx: Remove getparam error message
drm/vmwgfx: fix integer overflow in vmw_surface_define_ioctl()
Reset TreeId to zero on SMB2 TREE_CONNECT
metag/usercopy: Drop unused macros
metag/usercopy: Zero rest of buffer from copy_from_user
powerpc: Don't try to fix up misaligned load-with-reservation instructions
mm/mempolicy.c: fix error handling in set_mempolicy and mbind.
mtd: bcm47xxpart: fix parsing first block after aligned TRX
net/packet: fix overflow in check for priv area size
x86/vdso: Plug race between mapping and ELF header setup
iscsi-target: Fix TMR reference leak during session shutdown
iscsi-target: Drop work-around for legacy GlobalSAN initiator
xen, fbfront: fix connecting to backend
char: lack of bool string made CONFIG_DEVPORT always on
platform/x86: acer-wmi: setup accelerometer when machine has appropriate notify event
platform/x86: acer-wmi: setup accelerometer when ACPI device was found
mm: Tighten x86 /dev/mem with zeroing reads
virtio-console: avoid DMA from stack
catc: Combine failure cleanup code in catc_probe()
catc: Use heap buffer for memory size test
net: ipv6: check route protocol when deleting routes
Drivers: hv: don't leak memory in vmbus_establish_gpadl()
Drivers: hv: get rid of timeout in vmbus_open()
ubi/upd: Always flush after prepared for an update
x86/mce/AMD: Give a name to MCA bank 3 when accessed with legacy MSRs
powerpc: Reject binutils 2.24 when building little endian
net/packet: fix overflow in check for tp_frame_nr
net/packet: fix overflow in check for tp_reserve
tty: nozomi: avoid a harmless gcc warning
hostap: avoid uninitialized variable use in hfa384x_get_rid
gfs2: avoid uninitialized variable warning
net: neigh: guard against NULL solicit() method
sctp: listen on the sock only when it's state is listening or closed
ip6mr: fix notification device destruction
MIPS: Fix crash registers on non-crashing CPUs
RDS: Fix the atomicity for congestion map update
xen/x86: don't lose event interrupts
p9_client_readdir() fix
nfsd: check for oversized NFSv2/v3 arguments
ftrace/x86: Fix triple fault with graph tracing and suspend-to-ram
kvm: nVMX: Allow L1 to intercept software exceptions (#BP and #OF)
tun: read vnet_hdr_sz once
printk: use rcuidle console tracepoint
ipv6: check raw payload size correctly in ioctl
x86: standardize mmap_rnd() usage
x86/mm/32: Enable full randomization on i386 and X86_32
mm: larger stack guard gap, between vmas
mm: fix new crash in unmapped_area_topdown()
Allow stack to grow up to address space limit
Linux 3.10.107
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Conflicts:
arch/x86/mm/mmap.c
drivers/mmc/host/sdhci.c
drivers/usb/host/xhci-plat.c
fs/ext4/super.c
kernel/sched/core.c
commit e1587a4945408faa58d0485002c110eb2454740c upstream.
At the end of a window period, if the reclaimed pages is greater than
scanned, an unsigned underflow can result in a huge pressure value and
thus a critical event. Reclaimed pages is found to go higher than
scanned because of the addition of reclaimed slab pages to reclaimed in
shrink_node without a corresponding increment to scanned pages.
Minchan Kim mentioned that this can also happen in the case of a THP
page where the scanned is 1 and reclaimed could be 512.
Link: http://lkml.kernel.org/r/1486641577-11685-1-git-send-email-vinmenon@codeaurora.org
Signed-off-by: Vinayak Menon <vinmenon@codeaurora.org>
Acked-by: Minchan Kim <minchan@kernel.org>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Rik van Riel <riel@redhat.com>
Cc: Vladimir Davydov <vdavydov.dev@gmail.com>
Cc: Anton Vorontsov <anton.vorontsov@linaro.org>
Cc: Shiraz Hashim <shashim@codeaurora.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Willy Tarreau <w@1wt.eu>
The window size used for calculating vm pressure events was
previously fixed at 512 pages. The window size has a big
impact on the rate of notifications sent off to userspace,
in particular when using the "low" level. On machines with
a lot of memory, the current value is likely excessive. On
the other hand, if the window size is too big, we might
delay memory pressure events for too long, especially at
critical levels of memory pressure.
This patch attempts to address that problem with two changes.
The first change is to calculate the window size
based on the machine size, quite similar to how the vm
watermarks are being calculated. This reduces the chance
of false positives at any pressure level. Using the machine
size only makes sense on the root cgroup though; for non-root
cgroups, their hard memory limit is used to calculate the
window size. If no hard memory limit is set, we fall back to
the default window size that was previously used.
The second change is based on an idea from Johannes Weiner, to
only report medium and low pressure levels for every
X windows that we scan. This reduces the frequency with
which we report low/medium pressure levels, but at the same
time will still report critical memory pressure immediately.
Change-Id: Ieffca055b2fb6aa27ae0179e0a588e6fcb173a61
Signed-off-by: Martijn Coenen <maco@google.com>
With this patch userland applications that want to maintain the
interactivity/memory allocation cost can use the pressure level
notifications. The levels are defined like this:
The "low" level means that the system is reclaiming memory for new
allocations. Monitoring this reclaiming activity might be useful for
maintaining cache level. Upon notification, the program (typically
"Activity Manager") might analyze vmstat and act in advance (i.e.
prematurely shutdown unimportant services).
The "medium" level means that the system is experiencing medium memory
pressure, the system might be making swap, paging out active file
caches, etc. Upon this event applications may decide to further analyze
vmstat/zoneinfo/memcg or internal memory usage statistics and free any
resources that can be easily reconstructed or re-read from a disk.
The "critical" level means that the system is actively thrashing, it is
about to out of memory (OOM) or even the in-kernel OOM killer is on its
way to trigger. Applications should do whatever they can to help the
system. It might be too late to consult with vmstat or any other
statistics, so it's advisable to take an immediate action.
The events are propagated upward until the event is handled, i.e. the
events are not pass-through. Here is what this means: for example you
have three cgroups: A->B->C. Now you set up an event listener on
cgroups A, B and C, and suppose group C experiences some pressure. In
this situation, only group C will receive the notification, i.e. groups
A and B will not receive it. This is done to avoid excessive
"broadcasting" of messages, which disturbs the system and which is
especially bad if we are low on memory or thrashing. So, organize the
cgroups wisely, or propagate the events manually (or, ask us to
implement the pass-through events, explaining why would you need them.)
Performance wise, the memory pressure notifications feature itself is
lightweight and does not require much of bookkeeping, in contrast to the
rest of memcg features. Unfortunately, as of current memcg
implementation, pages accounting is an inseparable part and cannot be
turned off. The good news is that there are some efforts[1] to improve
the situation; plus, implementing the same, fully API-compatible[2]
interface for CONFIG_MEMCG=n case (e.g. embedded) is also a viable
option, so it will not require any changes on the userland side.
[1] http://permalink.gmane.org/gmane.linux.kernel.cgroups/6291
[2] http://lkml.org/lkml/2013/2/21/454
[akpm@linux-foundation.org: coding-style fixes]
[akpm@linux-foundation.org: fix CONFIG_CGROPUPS=n warnings]
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
Acked-by: Kirill A. Shutemov <kirill@shutemov.name>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Glauber Costa <glommer@parallels.com>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Luiz Capitulino <lcapitulino@redhat.com>
Cc: Greg Thelen <gthelen@google.com>
Cc: Leonid Moiseichuk <leonid.moiseichuk@nokia.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@gmail.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Cc: John Stultz <john.stultz@linaro.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>