Fix this when building on 32-bit:
arch/x86/platform/efi/efi.c: In function ‘__efi_enter_virtual_mode’:
arch/x86/platform/efi/efi.c:911:5: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
(efi_memory_desc_t *)pa);
^
arch/x86/platform/efi/efi.c:918:5: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
(efi_memory_desc_t *)pa);
^
The @pa local variable is declared as phys_addr_t and that is a u64 when
CONFIG_PHYS_ADDR_T_64BIT=y. (The last is enabled on 32-bit on a PAE
build.)
However, its value comes from __pa() which is basically doing pointer
arithmetic and checking, and returns unsigned long as it is the native
pointer width.
So let's use an unsigned long too. It should be fine to do so because
the later users cast it to a pointer too.
Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Matt Fleming <matt@codeblueprint.co.uk>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-efi@vger.kernel.org
Link: http://lkml.kernel.org/r/20161112210424.5157-2-matt@codeblueprint.co.uk
Signed-off-by: Ingo Molnar <mingo@kernel.org>
__LINUX_IF_ETHER_H is not defined anywhere, and if_ether.h can keep itself from
double inclusion, though it uses a single underscore prefix.
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: David S. Miller <davem@davemloft.net>
After Tom patch, thoff field could point past the end of the buffer,
this could fool some callers.
If an skb was provided, skb->len should be the upper limit.
If not, hlen is supposed to be the upper limit.
Fixes: a6e544b0a8 ("flow_dissector: Jump to exit code in __skb_flow_dissect")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Yibin Yang <yibyang@cisco.com
Acked-by: Alexander Duyck <alexander.h.duyck@intel.com>
Acked-by: Willem de Bruijn <willemb@google.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Martin KaFai Lau says:
====================
bpf: Fix bpf_redirect to an ipip/ip6tnl dev
This patch set fixes a bug in bpf_redirect(dev, flags) when dev is an
ipip/ip6tnl. The current problem is IP-EthHdr-IP is sent out instead of
IP-IP.
Patch 1 adds a dev->type test similar to dev_is_mac_header_xmit()
in act_mirred.c which is only available in net-next. We can consider to
refactor it once this patch is pulled into net-next from net.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
The test creates two netns, ns1 and ns2. The host (the default netns)
has an ipip or ip6tnl dev configured for tunneling traffic to the ns2.
ping VIPS from ns1 <----> host <--tunnel--> ns2 (VIPs at loopback)
The test is to have ns1 pinging VIPs configured at the loopback
interface in ns2.
The VIPs are 10.10.1.102 and 2401:face::66 (which are configured
at lo@ns2). [Note: 0x66 => 102].
At ns1, the VIPs are routed _via_ the host.
At the host, bpf programs are installed at the veth to redirect packets
from a veth to the ipip/ip6tnl. The test is configured in a way so
that both ingress and egress can be tested.
At ns2, the ipip/ip6tnl dev is configured with the local and remote address
specified. The return path is routed to the dev ipip/ip6tnl.
During egress test, the host also locally tests pinging the VIPs to ensure
that bpf_redirect at egress also works for the direct egress (i.e. not
forwarding from dev ve1 to ve2).
Acked-by: Alexei Starovoitov <ast@fb.com>
Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
If the bpf program calls bpf_redirect(dev, 0) and dev is
an ipip/ip6tnl, it currently includes the mac header.
e.g. If dev is ipip, the end result is IP-EthHdr-IP instead
of IP-IP.
The fix is to pull the mac header. At ingress, skb_postpull_rcsum()
is not needed because the ethhdr should have been pulled once already
and then got pushed back just before calling the bpf_prog.
At egress, this patch calls skb_postpull_rcsum().
If bpf_redirect(dev, BPF_F_INGRESS) is called,
it also fails now because it calls dev_forward_skb() which
eventually calls eth_type_trans(skb, dev). The eth_type_trans()
will set skb->type = PACKET_OTHERHOST because the mac address
does not match the redirecting dev->dev_addr. The PACKET_OTHERHOST
will eventually cause the ip_rcv() errors out. To fix this,
____dev_forward_skb() is added.
Joint work with Daniel Borkmann.
Fixes: cfc7381b30 ("ip_tunnel: add collect_md mode to IPIP tunnel")
Fixes: 8d79266bc4 ("ip6_tunnel: add collect_md mode to IPv6 tunnels")
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@fb.com>
Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
aoeblk contains some mysterious code, that wants to elevate the bio
vec page counts while it's under IO. That is not needed, it's
fragile, and it's causing kernel oopses for some.
Reported-by: Tested-by: Don Koch <kochd@us.ibm.com>
Tested-by: Tested-by: Don Koch <kochd@us.ibm.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
- These are fixes for the --hierarchy view of perf top and report, fixing
output oddities, mostly related to scrolling. (Namhyung Kim)
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2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=qT5b
-----END PGP SIGNATURE-----
Merge tag 'perf-hists-hierarchy-fixes-for-mingo-20161111' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent
Pull perf/urgent fixes for perf {top,report} --hierarchy, from Arnaldo Carvalho de Melo:
- These are fixes for the --hierarchy view of perf top and report, fixing
output oddities, mostly related to scrolling. (Namhyung Kim)
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Since the KERN_CONT changes, the current code in show_instructions()
prints out a whole bunch of unnecessary newlines. Change occurrences of
printk("\n") to pr_cont("\n"). While we're here, change all the other
cases of printk(KERN_CONT ...) to pr_cont() as well.
Signed-off-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Fix up our oops output by converting continuation lines to use
pr_cont(). Some of these are dubious, eg. printing a continuation line
which starts with a newline, but seem to work OK for now. This whole
function needs a rewrite in the next release.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Since the KERN_CONT changes these are being horribly split across lines,
for example:
MSR: 8000000000009033 <
SF,EE
,ME,IR
,DR,RI
,LE>
So fix it by using pr_cont() where appropriate.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Previously we got away with printing the stack trace in multiple pieces
and it usually looked right. But since commit 4bcc595ccd ("printk:
reinstate KERN_CONT for printing continuation lines"), KERN_CONT is now
required when printing continuation lines. Use pr_cont() as appropriate.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
The changes to use gas sections for constructing the exception vectors
causes a build break when using binutils 2.23:
arch/powerpc/kernel/exceptions-64s.S:770: Error: operand out of range
(0xffffffffffff8100 is not between 0x0000000000000000 and 0x000000000000ffff)
And so on.
Reported by Hugh with binutils-2.23.2-8.1.4.ppc64 from openSUSE 13.1 and
also Naveen & Denis using 2.23.52.0.1-26.el7 from RHEL 7. Strangely
binutils 2.22 (what I test with) is not affected.
This is caused by the use of @l in LOAD_HANDLER(). The @l was only
recently added in commit a24553dd02 ("powerpc/pseries: Remove
unnecessary syscall trampoline").
Luckily the gas section changes split out the LOAD_SYSCALL_HANDLER()
macro, which means we actually *don't* need to use @l in LOAD_HANDLER()
any more, only in LOAD_SYSCALL_HANDLER().
So drop the @l from LOAD_HANDLER().
Fixes: 57f266497d ("powerpc: Use gas sections for arranging exception vectors")
Signed-off-by: Hugh Dickins <hughd@google.com>
[mpe: Add gory details to change log]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Wakeups from winkle set the low bit of the HSPRG0 register, to
distinguish it from other sleep states. This is also the PACA pointer.
The system reset exception handler fails to mask this bit away before
using this value before using it as the PACA pointer.
Fix this by adding a new type of exception prolog macro where we already
have the PACA set in r13, and have the system reset vector mask it out.
The winkle wakeup handler will store the masked value back into HSPRG0.
Fixes: fb479e44a9 ("powerpc/64s: relocation, register save fixes for system reset interrupt")
Cc: stable@vger.kernel.org # v3.0+
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Reviewed-by: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
The ns->lba_shift assumes its value to be the logarithmic of the
LA size. A previous patch duplicated the lba_shift calculation into
lightnvm. It prematurely also subtracted a 512byte shift, which commonly
is applied per-command. The 512byte shift being subtracted twice led to
data loss when restoring the logical to physical mapping table from
device and when issuing I/O commands using rrpc.
Fix offset by removing the 512byte shift subtraction when calculating
lba_shift.
Fixes: b0b4e09c1a "lightnvm: control life of nvm_dev in driver"
Reported-by: Javier González <javier@cnexlabs.com>
Signed-off-by: Matias Bjørling <m@bjorling.me>
Signed-off-by: Jens Axboe <axboe@fb.com>
Fix a recent regression in the 8250_dw serial driver introduced by
adding a quirk for the APM X-Gene SoC to it which uncovered an issue
related to the handling of built-in device properties in the core
ACPI device enumeration code (Heikki Krogerus).
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.22 (GNU/Linux)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=XF0E
-----END PGP SIGNATURE-----
Merge tag 'acpi-4.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI fix from Rafael Wysocki:
"Fix a recent regression in the 8250_dw serial driver introduced by
adding a quirk for the APM X-Gene SoC to it which uncovered an issue
related to the handling of built-in device properties in the core ACPI
device enumeration code (Heikki Krogerus)"
* tag 'acpi-4.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI / platform: Add support for build-in properties
- Prevent the PM core from attempting to suspend parent devices
if any of their children, whose suspend callbacks were invoked
asynchronously, have failed to suspend during the "late" and
"noirq" phases of system-wide suspend of devices (Brian Norris).
- Prevent the boot-time system suspend test code from leaking a
reference to the RTC device used by it (Johan Hovold).
- Fix cpupower to use the return value of one of its library
functions correctly and restore the correct behavior of it
when used for setting cpufreq tunables broken during the 4.7
development cycle (Laura Abbott).
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.22 (GNU/Linux)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=ykEg
-----END PGP SIGNATURE-----
Merge tag 'pm-4.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki:
"These fix two bugs in error code paths in the PM core (system-wide
suspend of devices), a device reference leak in the boot-time suspend
test code and a cpupower utility regression from the 4.7 cycle.
Specifics:
- Prevent the PM core from attempting to suspend parent devices if
any of their children, whose suspend callbacks were invoked
asynchronously, have failed to suspend during the "late" and
"noirq" phases of system-wide suspend of devices (Brian Norris).
- Prevent the boot-time system suspend test code from leaking a
reference to the RTC device used by it (Johan Hovold).
- Fix cpupower to use the return value of one of its library
functions correctly and restore the correct behavior of it when
used for setting cpufreq tunables broken during the 4.7 development
cycle (Laura Abbott)"
* tag 'pm-4.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
PM / sleep: don't suspend parent when async child suspend_{noirq, late} fails
PM / sleep: fix device reference leak in test_suspend
cpupower: Correct return type of cpu_power_is_cpu_online() in cpufreq-set
- mmap handler for dma ops as generic handler no longer works for us [Alexey]
- Fixes for EZChip platform [Noam]
- Fix RTC clocksource driver build issue
- ARC IRQ handling fixes [Yuriy]
- Revert a recent makefile change which doesn't go well with oldish tools out in the wild
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=hbBv
-----END PGP SIGNATURE-----
Merge tag 'arc-4.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc
Pull ARC fixes from Vineet Gupta:
- mmap handler for dma ops as generic handler no longer works for us
[Alexey]
- Fixes for EZChip platform [Noam]
- Fix RTC clocksource driver build issue
- ARC IRQ handling fixes [Yuriy]
- Revert a recent makefile change which doesn't go well with oldish
tools out in the wild
* tag 'arc-4.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
ARCv2: MCIP: Use IDU_M_DISTRI_DEST mode if there is only 1 destination core
ARC: IRQ: Do not use hwirq as virq and vice versa
ARC: [plat-eznps] set default baud for early console
ARC: [plat-eznps] remove IPI clear from SMP operations
Revert "ARC: build: retire old toggles"
ARC: timer: rtc: implement read loop in "C" vs. inline asm
ARC: change return value of userspace cmpxchg assist syscall
arc: Implement arch-specific dma_map_ops.mmap
ARC: [SMP] avoid overriding present cpumask
ARC: Enable PERF_EVENTS in nSIM driven platforms
Minor doc fix, a DMI match for ideapad and a fix to toshiba-wmi to avoid loading
on non-toshiba systems.
Documentation/ABI:
- ibm_rtl: The "What:" fields are incomplete
toshiba-wmi:
- Fix loading the driver on non Toshiba laptops
ideapad-laptop:
- Add another DMI entry for Yoga 900
-----BEGIN PGP SIGNATURE-----
iQEcBAABAgAGBQJYJSzXAAoJEKbMaAwKp364Df0IAKOMnIMZ35K4uKCemZ7dVEtW
VvMgch2RZwEa+Oy8Og0o6WGYyurOR66w4oJqGlc9BYPaQo/akiKU0xLcQ2fqndsc
PnkberSaqER5/9COnSXLCWH9WsCW3rvdGHLg7ZicUiO+b6n/90hM4MRWL6j3QZCl
FYgMMEKSpPz7juZAdPIvfE4Mr157aESwmcHkihi7F4Ui6k2jln49R+zQoM6h9D/u
nH/pamxkfO/cJGQ3wcLVPhu6EL9wLqWU/+1/7FILYpoWkbiaJH3TtElQ3OU2yXq+
PmMcS8nI7Uv2Jrx66MfMx0fkCdA0lx5SlXsEmlwGtwk8A4qJq2AwTRvz5slHHTA=
=Upe0
-----END PGP SIGNATURE-----
Merge tag 'platform-drivers-x86-v4.9-3' of git://git.infradead.org/users/dvhart/linux-platform-drivers-x86
Pull x86 platform driver fixes from Darren Hart:
"Minor doc fix, a DMI match for ideapad and a fix to toshiba-wmi to
avoid loading on non-toshiba systems.
Documentation/ABI:
- ibm_rtl: The "What:" fields are incomplete
toshiba-wmi:
- Fix loading the driver on non Toshiba laptops
ideapad-laptop:
- Add another DMI entry for Yoga 900"
* tag 'platform-drivers-x86-v4.9-3' of git://git.infradead.org/users/dvhart/linux-platform-drivers-x86:
Documentation/ABI: ibm_rtl: The "What:" fields are incomplete
toshiba-wmi: Fix loading the driver on non Toshiba laptops
ideapad-laptop: Add another DMI entry for Yoga 900
Pull block fixes from Jens Axboe:
"Two small (really, one liners both of them!) fixes that should go into
this series:
- Request allocation error handling fix for nbd, from Christophe,
fixing a regression in this series.
- An oops fix for drbd. Not a regression in this series, but stable
material. From Richard"
* 'for-linus' of git://git.kernel.dk/linux-block:
drbd: Fix kernel_sendmsg() usage - potential NULL deref
nbd: Fix error handling
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=5c2j
-----END PGP SIGNATURE-----
Merge tag 'pci-v4.9-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI fixes from Bjorn Helgaas:
- Update MAINTAINERS for Intel VMD driver filename
- Update Rockchip rk3399 host bridge driver DTS and resets
- Fix ROM shadow problem that made some video device initialization
fail
* tag 'pci-v4.9-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
PCI: VMD: Update filename to reflect move
arm64: dts: rockchip: add three new resets for rk3399 PCIe controller
PCI: rockchip: Add three new resets as required properties
PCI: Don't attempt to claim shadow copies of ROM
-----BEGIN PGP SIGNATURE-----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=Zg1p
-----END PGP SIGNATURE-----
Merge tag 'drm-fixes-for-v4.9-rc5' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
"AMD, radeon, i915, imx, msm and udl fixes:
- amdgpu/radeon have a number of power management regressions and
fixes along with some better error checking
- imx has a single regression fix
- udl has a single kmalloc instead of stack for usb control msg fix
- msm has some fixes for modesetting bugs and regressions
- i915 has a one fix for a Sandybridge regression along with some
others for DP audio.
They all seem pretty okay at this stage, we've got one MST fix I know
going through process for i915, but I expect it'll be next week"
* tag 'drm-fixes-for-v4.9-rc5' of git://people.freedesktop.org/~airlied/linux: (30 commits)
drm/udl: make control msg static const. (v2)
drm/amd/powerplay: implement get_clock_by_type for iceland.
drm/amd/powerplay/smu7: fix checks in smu7_get_evv_voltages (v2)
drm/amd/powerplay: update phm_get_voltage_evv_on_sclk for iceland
drm/amd/powerplay: propagate errors in phm_get_voltage_evv_on_sclk
drm/imx: disable planes before DC
drm/amd/powerplay: return false instead of -EINVAL
drm/amdgpu/powerplay/smu7: fix unintialized data usage
drm/amdgpu: fix crash in acp_hw_fini
drm/i915: Limit Valleyview and earlier to only using mappable scanout
drm/i915: Round tile chunks up for constructing partial VMAs
drm/i915/dp: Extend BDW DP audio workaround to GEN9 platforms
drm/i915/dp: BDW cdclk fix for DP audio
drm/i915/vlv: Prevent enabling hpd polling in late suspend
drm/i915: Respect alternate_ddc_pin for all DDI ports
drm/msm: Fix error handling crashes seen when VRAM allocation fails
drm/msm/mdp5: 8x16 actually has 8 mixer stages
drm/msm/mdp5: no scaling support on RGBn pipes for 8x16
drm/msm/mdp5: handle non-fullscreen base plane case
drm/msm: Set CLK_IGNORE_UNUSED flag for PLL clocks
...
- Fix mmc card initialization for hosts not supporting HW busy detection
- Fix mmc_test for sending commands during non-blocking write
MMC host:
- mxs: Avoid using an uninitialized
- sdhci: Restore enhanced strobe setting during runtime resume
- sdhci: Fix a couple of reset related issues
- dw_mmc: Fix a reset controller issue
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=mnjf
-----END PGP SIGNATURE-----
Merge tag 'mmc-v4.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
Pull MMC fixes from Ulf Hansson:
"MMC core:
- Fix mmc card initialization for hosts not supporting HW busy
detection
- Fix mmc_test for sending commands during non-blocking write
MMC host:
- mxs: Avoid using an uninitialized
- sdhci: Restore enhanced strobe setting during runtime resume
- sdhci: Fix a couple of reset related issues
- dw_mmc: Fix a reset controller issue"
* tag 'mmc-v4.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
mmc: mxs: Initialize the spinlock prior to using it
mmc: mmc: Use 500ms as the default generic CMD6 timeout
mmc: mmc_test: Fix "Commands during non-blocking write" tests
mmc: sdhci: Fix missing enhanced strobe setting during runtime resume
mmc: sdhci: Reset cmd and data circuits after tuning failure
mmc: sdhci: Fix unexpected data interrupt handling
mmc: sdhci: Fix CMD line reset interfering with ongoing data transfer
mmc: dw_mmc: add the "reset" as name of reset controller
Documentation: synopsys-dw-mshc: add binding for reset-names
- Fix a host of runtime problems with the Intel
Cherryview driver: suspend/resume needs to be
marshalled properly, and strange effects from BIOS
interaction during suspend/resume need to be
dealt with.
- A single bit was being set wrong in the Aspeed
driver.
- Fix an iProc probe ordering fallout resulting from
v4.9 refactorings for bus population.
- Do not specify a default trigger in the ST Micro
cascaded GPIO IRQ controller: the kernel will moan.
- Make IRQs optional altogether on the STM32 driver,
it turns out not all systems have them or want them.
- Fix a re-probe bug in the i.MX driver, it will
eventually crash if probed repeatedly, not good.
-----BEGIN PGP SIGNATURE-----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=ENR8
-----END PGP SIGNATURE-----
Merge tag 'pinctrl-v4.9-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control fixes from Linus Walleij:
"All is about drivers, no core business going on.
- Fix a host of runtime problems with the Intel Cherryview driver:
suspend/resume needs to be marshalled properly, and strange effects
from BIOS interaction during suspend/resume need to be dealt with.
- A single bit was being set wrong in the Aspeed driver.
- Fix an iProc probe ordering fallout resulting from v4.9
refactorings for bus population.
- Do not specify a default trigger in the ST Micro cascaded GPIO IRQ
controller: the kernel will moan.
- Make IRQs optional altogether on the STM32 driver, it turns out not
all systems have them or want them.
- Fix a re-probe bug in the i.MX driver, it will eventually crash if
probed repeatedly, not good"
* tag 'pinctrl-v4.9-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
pinctrl-aspeed-g5: Never set SCU90[6]
pinctrl: cherryview: Prevent possible interrupt storm on resume
pinctrl: cherryview: Serialize register access in suspend/resume
pinctrl: imx: reset group index on probe
pinctrl: stm32: move gpio irqs binding to optional
pinctrl: stm32: remove dependency with interrupt controller
pinctrl: st: don't specify default interrupt trigger
pinctrl: iproc: Fix iProc and NSP GPIO support
Merge fixes for -Wmaybe-uninitialized from Arnd Bergmann:
"It took a while for some patches to make it into mainline through
maintainer trees, but the 28-patch series is now reduced to 10, with
one tiny patch added at the end.
Aside from patches that are no longer required, I did these changes
compared to version 1:
- Dropped "iio: maxim_thermocouple: detect invalid storage size in
read()", which is currently in linux-next as commit 32cb7d27e6.
This is the only remaining warning I see for a couple of corner
cases (kbuild bot reports it on blackfin, kernelci bot and arm-soc
bot both report it on arm64)
- Dropped "brcmfmac: avoid maybe-uninitialized warning in
brcmf_cfg80211_start_ap", which is currently in net/master merge
pending.
- Dropped two x86 patches, "x86: math-emu: possible uninitialized
variable use" and "x86: mark target address as output in 'insb'
asm" as they do not seem to trigger for a default build, and I got
no feedback on them. Both of these are ancient issues and seem
harmless, I will send them again to the x86 maintainers once the
rest is merged.
- Dropped "rbd: false-postive gcc-4.9 -Wmaybe-uninitialized" based on
feedback from Ilya Dryomov, who already has a different fix queued
up for v4.10. The kbuild bot reports this as a warning for xtensa.
- Replaced "crypto: aesni: avoid -Wmaybe-uninitialized warning" with
a simpler patch, this one always triggers but my first solution
would not be safe for linux-4.9 any more at this point. I'll follow
up with the larger patch as a cleanup for 4.10.
- Replaced "dib0700: fix nec repeat handling" with a better one,
contributed by Sean Young"
* -Wmaybe-uninitialized fixes:
Kbuild: enable -Wmaybe-uninitialized warnings by default
pcmcia: fix return value of soc_pcmcia_regulator_set
infiniband: shut up a maybe-uninitialized warning
crypto: aesni: shut up -Wmaybe-uninitialized warning
rc: print correct variable for z8f0811
dib0700: fix nec repeat handling
s390: pci: don't print uninitialized data for debugging
nios2: fix timer initcall return value
x86: apm: avoid uninitialized data
NFSv4.1: work around -Wmaybe-uninitialized warning
Kbuild: enable -Wmaybe-uninitialized warning for "make W=1"
Pull VFS fixes from Al Viro:
"Christoph's and Jan's aio fixes, fixup for generic_file_splice_read
(removal of pointless detritus that actually breaks it when used for
gfs2 ->splice_read()) and fixup for generic_file_read_iter()
interaction with ITER_PIPE destinations."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
splice: remove detritus from generic_file_splice_read()
mm/filemap: don't allow partially uptodate page for pipes
aio: fix freeze protection of aio writes
fs: remove aio_run_iocb
fs: remove the never implemented aio_fsync file operation
aio: hold an extra file reference over AIO read/write operations
generic_file_splice_read() code that went into -rc1. Switch to the
less efficient default_file_splice_read() for now; the proper fix is
being held for 4.10.
We also have a fix for a 4.8 regression and a trival libceph fixup.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2
iQEcBAABCAAGBQJYJdjPAAoJEEp/3jgCEfOLzEoH/A3B1qqiqs2WoMn0O4pnEdcM
TxaU46VOkYcK2wh/xbYAns2kZEXKgcCySv+kXn4l3Gh6/lXVxv4WexNqWdO1o6yN
GqEufIH7yQM6QOE/hkwtUciBXmPfQMPxF14vvprYQuyu5Bs96mrphiAa7vX6Vbk5
VhfE/j0shb8Q2QQj/Om0mWqM6JtOAlr5aFtEcJcodbCk1k8CptUcBsSoQ31PXMC7
UcaBHh1VHGLvx9WeG1Rw1g9tc2LiUyu+UK0csolp51+amB7HezgfmzDQzHtXzBmm
n90SQwonf0DrdWUGuQlOpHnREwxLSgN19s68FCjLc0jeMTP4b6TFEIUgFxiqWc4=
=Ws5s
-----END PGP SIGNATURE-----
Merge tag 'ceph-for-4.9-rc5' of git://github.com/ceph/ceph-client
Pull Ceph fixes from Ilya Dryomov:
"Ceph's ->read_iter() implementation is incompatible with the new
generic_file_splice_read() code that went into -rc1. Switch to the
less efficient default_file_splice_read() for now; the proper fix is
being held for 4.10.
We also have a fix for a 4.8 regression and a trival libceph fixup"
* tag 'ceph-for-4.9-rc5' of git://github.com/ceph/ceph-client:
libceph: initialize last_linger_id with a large integer
libceph: fix legacy layout decode with pool 0
ceph: use default file splice read callback
Bugfixes:
- Trim extra slashes in v4 nfs_paths to fix tools that use this
- Fix a -Wmaybe-uninitialized warnings
- Fix suspicious RCU usages
- Fix Oops when mounting multiple servers at once
- Suppress a false-positive pNFS error
- Fix a DMAR failure in NFS over RDMA
-----BEGIN PGP SIGNATURE-----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=hFod
-----END PGP SIGNATURE-----
Merge tag 'nfs-for-4.9-3' of git://git.linux-nfs.org/projects/anna/linux-nfs
Pull NFS client bugfixes from Anna Schumaker:
"Most of these fix regressions in 4.9, and none are going to stable
this time around.
Bugfixes:
- Trim extra slashes in v4 nfs_paths to fix tools that use this
- Fix a -Wmaybe-uninitialized warnings
- Fix suspicious RCU usages
- Fix Oops when mounting multiple servers at once
- Suppress a false-positive pNFS error
- Fix a DMAR failure in NFS over RDMA"
* tag 'nfs-for-4.9-3' of git://git.linux-nfs.org/projects/anna/linux-nfs:
xprtrdma: Fix DMAR failure in frwr_op_map() after reconnect
fs/nfs: Fix used uninitialized warn in nfs4_slot_seqid_in_use()
NFS: Don't print a pNFS error if we aren't using pNFS
NFS: Ignore connections that have cl_rpcclient uninitialized
SUNRPC: Fix suspicious RCU usage
NFSv4.1: work around -Wmaybe-uninitialized warning
NFS: Trim extra slash in v4 nfs_path
In this update:
o fix for aborting deferred transactions on filesystem shutdown.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=62jA
-----END PGP SIGNATURE-----
Merge tag 'xfs-fixes-for-linus-4.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs
Pull xfs fix from Dave Chinner:
"This is a fix for an unmount hang (regression) when the filesystem is
shutdown. It was supposed to go to you for -rc3, but I accidentally
tagged the commit prior to it in that pullreq.
Summary:
- fix for aborting deferred transactions on filesystem shutdown"
* tag 'xfs-fixes-for-linus-4.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs:
xfs: defer should abort intent items if the trans roll fails
Previously the warnings were added back at the W=1 level and above, this
now turns them on again by default, assuming that we have addressed all
warnings and again have a clean build for v4.10.
I found a number of new warnings in linux-next already and submitted
bugfixes for those. Hopefully they are caught by the 0day builder in
the future as soon as this patch is merged.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The newly introduced soc_pcmcia_regulator_set() function sometimes
returns without setting its return code, as shown by this warning:
drivers/pcmcia/soc_common.c: In function 'soc_pcmcia_regulator_set':
drivers/pcmcia/soc_common.c:112:5: error: 'ret' may be used uninitialized in this function [-Werror=maybe-uninitialized]
This changes it to propagate the regulator_disable() result instead.
Fixes: ac61b6001a ("pcmcia: soc_common: add support for Vcc and Vpp regulators")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Some configurations produce this harmless warning when built with gcc
-Wmaybe-uninitialized:
infiniband/core/cma.c: In function 'cma_get_net_dev':
infiniband/core/cma.c:1242:12: warning: 'src_addr_storage.sin_addr.s_addr' may be used uninitialized in this function [-Wmaybe-uninitialized]
I previously reported this for the powerpc64 defconfig, but have now
reproduced the same thing for x86 as well, using gcc-5 or higher.
The code looks correct to me, and this change just rearranges it by
making sure we alway initialize the entire address structure to make the
warning disappear. My first approach added an initialization at the
time of the declaration, which Doug commented may be too costly, so I
hope this version doesn't add overhead.
Link: http://arm-soc.lixom.net/buildlogs/mainline/v4.7-rc6/buildall.powerpc.ppc64_defconfig.log.passed
Link: https://patchwork.kernel.org/patch/9212825/
Acked-by: Haggai Eran <haggaie@mellanox.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The rfc4106 encrypy/decrypt helper functions cause an annoying
false-positive warning in allmodconfig if we turn on
-Wmaybe-uninitialized warnings again:
arch/x86/crypto/aesni-intel_glue.c: In function ‘helper_rfc4106_decrypt’:
include/linux/scatterlist.h:67:31: warning: ‘dst_sg_walk.sg’ may be used uninitialized in this function [-Wmaybe-uninitialized]
The problem seems to be that the compiler doesn't track the state of the
'one_entry_in_sg' variable across the kernel_fpu_begin/kernel_fpu_end
section.
This takes the easy way out by adding a bogus initialization, which
should be harmless enough to get the patch into v4.9 so we can turn on
this warning again by default without producing useless output. A
follow-up patch for v4.10 rearranges the code to make the warning go
away.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
A recent rework accidentally left a debugging printk untouched while
changing the meaning of the variables, leading to an uninitialized
variable being printed:
drivers/media/i2c/ir-kbd-i2c.c: In function 'get_key_haup_common':
drivers/media/i2c/ir-kbd-i2c.c:62:2: error: 'toggle' may be used uninitialized in this function [-Werror=maybe-uninitialized]
This prints the correct one instead, as we did before the patch.
Fixes: 00bb820755 ("[media] rc: Hauppauge z8f0811 can decode RC6")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
When receiving a nec repeat, ensure the correct scancode is repeated
rather than a random value from the stack. This removes the need for
the bogus uninitialized_var() and also fixes the warnings:
drivers/media/usb/dvb-usb/dib0700_core.c: In function ‘dib0700_rc_urb_completion’:
drivers/media/usb/dvb-usb/dib0700_core.c:679: warning: ‘protocol’ may be used uninitialized in this function
[sean addon: So after writing the patch and submitting it, I've bought the
hardware on ebay. Without this patch you get random scancodes
on nec repeats, which the patch indeed fixes.]
Signed-off-by: Sean Young <sean@mess.org>
Tested-by: Sean Young <sean@mess.org>
Cc: stable@vger.kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
gcc correctly warns about an incorrect use of the 'pa' variable in case
we pass an empty scatterlist to __s390_dma_map_sg:
arch/s390/pci/pci_dma.c: In function '__s390_dma_map_sg':
arch/s390/pci/pci_dma.c:309:13: warning: 'pa' may be used uninitialized in this function [-Wmaybe-uninitialized]
This adds a bogus initialization to the function to sanitize the debug
output. I would have preferred a solution without the initialization,
but I only got the report from the kbuild bot after turning on the
warning again, and didn't manage to reproduce it myself.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
When called more than twice, the nios2_time_init() function return an
uninitialized value, as detected by gcc -Wmaybe-uninitialized
arch/nios2/kernel/time.c: warning: 'ret' may be used uninitialized in this function
This makes it return '0' here, matching the comment above the function.
Acked-by: Ley Foon Tan <lftan@altera.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
apm_bios_call() can fail, and return a status in its argument structure.
If that status however is zero during a call from
apm_get_power_status(), we end up using data that may have never been
set, as reported by "gcc -Wmaybe-uninitialized":
arch/x86/kernel/apm_32.c: In function ‘apm’:
arch/x86/kernel/apm_32.c:1729:17: error: ‘bx’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
arch/x86/kernel/apm_32.c:1835:5: error: ‘cx’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
arch/x86/kernel/apm_32.c:1730:17: note: ‘cx’ was declared here
arch/x86/kernel/apm_32.c:1842:27: error: ‘dx’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
arch/x86/kernel/apm_32.c:1731:17: note: ‘dx’ was declared here
This changes the function to return "APM_NO_ERROR" here, which makes the
code more robust to broken BIOS versions, and avoids the warning.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Jiri Kosina <jkosina@suse.cz>
Reviewed-by: Luis R. Rodriguez <mcgrof@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
A bugfix introduced a harmless gcc warning in nfs4_slot_seqid_in_use if
we enable -Wmaybe-uninitialized again:
fs/nfs/nfs4session.c:203:54: error: 'cur_seq' may be used uninitialized in this function [-Werror=maybe-uninitialized]
gcc is not smart enough to conclude that the IS_ERR/PTR_ERR pair results
in a nonzero return value here. Using PTR_ERR_OR_ZERO() instead makes
this clear to the compiler.
Fixes: e09c978aae ("NFSv4.1: Fix Oopsable condition in server callback races")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Traditionally, we have always had warnings about uninitialized variables
enabled, as this is part of -Wall, and generally a good idea [1], but it
also always produced false positives, mainly because this is a variation
of the halting problem and provably impossible to get right in all cases
[2].
Various people have identified cases that are particularly bad for false
positives, and in commit e74fc973b6 ("Turn off -Wmaybe-uninitialized
when building with -Os"), I turned off the warning for any build that
was done with CC_OPTIMIZE_FOR_SIZE. This drastically reduced the number
of false positive warnings in the default build but unfortunately had
the side effect of turning the warning off completely in 'allmodconfig'
builds, which in turn led to a lot of warnings (both actual bugs, and
remaining false positives) to go in unnoticed.
With commit 877417e6ff ("Kbuild: change CC_OPTIMIZE_FOR_SIZE
definition") enabled the warning again for allmodconfig builds in v4.7
and in v4.8-rc1, I had finally managed to address all warnings I get in
an ARM allmodconfig build and most other maybe-uninitialized warnings
for ARM randconfig builds.
However, commit 6e8d666e92 ("Disable "maybe-uninitialized" warning
globally") was merged at the same time and disabled it completely for
all configurations, because of false-positive warnings on x86 that I had
not addressed until then. This caused a lot of actual bugs to get
merged into mainline, and I sent several dozen patches for these during
the v4.9 development cycle. Most of these are actual bugs, some are for
correct code that is safe because it is only called under external
constraints that make it impossible to run into the case that gcc sees,
and in a few cases gcc is just stupid and finds something that can
obviously never happen.
I have now done a few thousand randconfig builds on x86 and collected
all patches that I needed to address every single warning I got (I can
provide the combined patch for the other warnings if anyone is
interested), so I hope we can get the warning back and let people catch
the actual bugs earlier.
This reverts the change to disable the warning completely and for now
brings it back at the "make W=1" level, so we can get it merged into
mainline without introducing false positives. A follow-up patch enables
it on all levels unless some configuration option turns it off because
of false-positives.
Link: https://rusty.ozlabs.org/?p=232 [1]
Link: https://gcc.gnu.org/wiki/Better_Uninitialized_Warnings [2]
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Some drivers would like to record stacktraces in order to aide leak
tracing. As stackdepot already provides a facility for only storing the
unique traces, thereby reducing the memory required, export that
functionality for use by drivers.
The code was originally created for KASAN and moved under lib in commit
cd11016e5f ("mm, kasan: stackdepot implementation. Enable stackdepot
for SLAB") so that it could be shared with mm/. In turn, we want to
share it now with drivers.
Link: http://lkml.kernel.org/r/20161108133209.22704-1-chris@chris-wilson.co.uk
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: "Kirill A. Shutemov" <kirill@shutemov.name>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Limit the number of kmemleak false positives by including
.data.ro_after_init in memory scanning. To achieve this we need to add
symbols for start and end of the section to the linker scripts.
The problem was been uncovered by commit 56989f6d85 ("genetlink: mark
families as __ro_after_init").
Link: http://lkml.kernel.org/r/1478274173-15218-1-git-send-email-jakub.kicinski@netronome.com
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Cong Wang <xiyou.wangcong@gmail.com>
Cc: Johannes Berg <johannes@sipsolutions.net>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
While testing OBJFREELIST_SLAB integration with pagealloc, we found a
bug where kmem_cache(sys) would be created with both CFLGS_OFF_SLAB &
CFLGS_OBJFREELIST_SLAB. When it happened, critical allocations needed
for loading drivers or creating new caches will fail.
The original kmem_cache is created early making OFF_SLAB not possible.
When kmem_cache(sys) is created, OFF_SLAB is possible and if pagealloc
is enabled it will try to enable it first under certain conditions.
Given kmem_cache(sys) reuses the original flag, you can have both flags
at the same time resulting in allocation failures and odd behaviors.
This fix discards allocator specific flags from memcg before calling
create_cache.
The bug exists since 4.6-rc1 and affects testing debug pagealloc
configurations.
Fixes: b03a017beb ("mm/slab: introduce new slab management type, OBJFREELIST_SLAB")
Link: http://lkml.kernel.org/r/1478553075-120242-1-git-send-email-thgarnie@google.com
Signed-off-by: Greg Thelen <gthelen@google.com>
Signed-off-by: Thomas Garnier <thgarnie@google.com>
Tested-by: Thomas Garnier <thgarnie@google.com>
Acked-by: Christoph Lameter <cl@linux.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Vladimir Davydov <vdavydov.dev@gmail.com>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
It could be not possible to freeze coredumping task when it waits for
'core_state->startup' completion, because threads are frozen in
get_signal() before they got a chance to complete 'core_state->startup'.
Inability to freeze a task during suspend will cause suspend to fail.
Also CRIU uses cgroup freezer during dump operation. So with an
unfreezable task the CRIU dump will fail because it waits for a
transition from 'FREEZING' to 'FROZEN' state which will never happen.
Use freezer_do_not_count() to tell freezer to ignore coredumping task
while it waits for core_state->startup completion.
Link: http://lkml.kernel.org/r/1475225434-3753-1-git-send-email-aryabinin@virtuozzo.com
Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Acked-by: Pavel Machek <pavel@ucw.cz>
Acked-by: Oleg Nesterov <oleg@redhat.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Tejun Heo <tj@kernel.org>
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Starting from 4.9-rc1 kernel, I started noticing some test failures of
sendfile(2) and splice(2) (sendfile0N and splice01 from LTP) when
testing on sub-page block size filesystems (tested both XFS and ext4),
these syscalls start to return EIO in the tests. e.g.
sendfile02 1 TFAIL : sendfile02.c:133: sendfile(2) failed to return expected value, expected: 26, got: -1
sendfile02 2 TFAIL : sendfile02.c:133: sendfile(2) failed to return expected value, expected: 24, got: -1
sendfile02 3 TFAIL : sendfile02.c:133: sendfile(2) failed to return expected value, expected: 22, got: -1
sendfile02 4 TFAIL : sendfile02.c:133: sendfile(2) failed to return expected value, expected: 20, got: -1
This is because that in sub-page block size cases, we don't need the
whole page to be uptodate, only the part we care about is uptodate is OK
(if fs has ->is_partially_uptodate defined).
But page_cache_pipe_buf_confirm() doesn't have the ability to check the
partially-uptodate case, it needs the whole page to be uptodate. So it
returns EIO in this case.
This is a regression introduced by commit 82c156f853 ("switch
generic_file_splice_read() to use of ->read_iter()"). Prior to the
change, generic_file_splice_read() doesn't allow partially-uptodate page
either, so it worked fine.
Fix it by skipping the partially-uptodate check if we're working on a
pipe in do_generic_file_read(), so we read the whole page from disk as
long as the page is not uptodate.
I think the other way to fix it is to add the ability to check & allow
partially-uptodate page to page_cache_pipe_buf_confirm(), but that is
much harder to do and seems gain little.
Link: http://lkml.kernel.org/r/1477986187-12717-1-git-send-email-guaneryu@gmail.com
Signed-off-by: Eryu Guan <guaneryu@gmail.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Error paths in hugetlb_cow() and hugetlb_no_page() may free a newly
allocated huge page.
If a reservation was associated with the huge page, alloc_huge_page()
consumed the reservation while allocating. When the newly allocated
page is freed in free_huge_page(), it will increment the global
reservation count. However, the reservation entry in the reserve map
will remain.
This is not an issue for shared mappings as the entry in the reserve map
indicates a reservation exists. But, an entry in a private mapping
reserve map indicates the reservation was consumed and no longer exists.
This results in an inconsistency between the reserve map and the global
reservation count. This 'leaks' a reserved huge page.
Create a new routine restore_reserve_on_error() to restore the reserve
entry in these specific error paths. This routine makes use of a new
function vma_add_reservation() which will add a reserve entry for a
specific address/page.
In general, these error paths were rarely (if ever) taken on most
architectures. However, powerpc contained arch specific code that that
resulted in an extra fault and execution of these error paths on all
private mappings.
Fixes: 67961f9db8 ("mm/hugetlb: fix huge page reserve accounting for private mappings)
Link: http://lkml.kernel.org/r/1476933077-23091-2-git-send-email-mike.kravetz@oracle.com
Signed-off-by: Mike Kravetz <mike.kravetz@oracle.com>
Reported-by: Jan Stancek <jstancek@redhat.com>
Tested-by: Jan Stancek <jstancek@redhat.com>
Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Acked-by: Hillf Danton <hillf.zj@alibaba-inc.com>
Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Kirill A . Shutemov <kirill.shutemov@linux.intel.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>