SMB3.1.1 GCM performs much better than the older CCM default:
more than twice as fast in the write patch (copy to the Samba
server on localhost for example) and 80% faster on the read
patch (copy from the server).
Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>
Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>
GCM is faster. Request it during negotiate protocol.
Followon patch will add callouts to GCM crypto
Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>
Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>
IS_ERR(_OR_NULL) already contain an 'unlikely' compiler flag,
so no need to do that again from its callers. Drop it.
Cc: linux-cifs@vger.kernel.org
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Paulo Alcantara <palcantara@suse.de>
Use kmemdup rather than duplicating its implementation
This was reported by coccinelle.
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
-----BEGIN PGP SIGNATURE-----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=2Amr
-----END PGP SIGNATURE-----
Merge tag 'for-linus-20190706' of git://git.kernel.dk/linux-block
Pull block fix from Jens Axboe:
"Just a single fix for a patch from Greg KH, which reportedly break
block debugfs locations for certain setups. Trivial enough that I
think we should include it now, rather than wait and release 5.2 with
it, since it's a regression in this series"
* tag 'for-linus-20190706' of git://git.kernel.dk/linux-block:
blk-mq: fix up placement of debugfs directory of queue files
- Fix a silly typo in virt_addr_valid which led to completely bogus
behavior (that happened to stop tripping up hardened usercopy despite
being broken).
- Fix UART parity setup on AR933x systems.
- A build fix for non-Linux build machines.
- Have the 'all' make target build DTBs, primarily to fit in with the
behavior of scripts/package/builddeb.
- Handle an execution hazard in TLB exceptions that use KScratch
registers, which could inadvertently clobber the $1 register on some
generally higher-end out-of-order CPUs.
- A MAINTAINERS update to fix the path to the NAND driver for Ingenic
systems.
-----BEGIN PGP SIGNATURE-----
iIsEABYIADMWIQRgLjeFAZEXQzy86/s+p5+stXUA3QUCXSDJfhUccGF1bC5idXJ0
b25AbWlwcy5jb20ACgkQPqefrLV1AN35ygEA30KckazfjbtmW0EqD+C19sgtbSS3
eCAiweHHwLJoyUUBAJ/HzlZ8ap2X9ilZuFdzKEf1igj5WsLIyrkl6kkauUEA
=DRYO
-----END PGP SIGNATURE-----
Merge tag 'mips_fixes_5.2_2' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux
Pull MIPS fixes from Paul Burton:
"A few more MIPS fixes:
- Fix a silly typo in virt_addr_valid which led to completely bogus
behavior (that happened to stop tripping up hardened usercopy
despite being broken).
- Fix UART parity setup on AR933x systems.
- A build fix for non-Linux build machines.
- Have the 'all' make target build DTBs, primarily to fit in with the
behavior of scripts/package/builddeb.
- Handle an execution hazard in TLB exceptions that use KScratch
registers, which could inadvertently clobber the $1 register on
some generally higher-end out-of-order CPUs.
- A MAINTAINERS update to fix the path to the NAND driver for Ingenic
systems"
* tag 'mips_fixes_5.2_2' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux:
MAINTAINERS: Correct path to moved files
MIPS: Add missing EHB in mtc0 -> mfc0 sequence.
MIPS: have "plain" make calls build dtbs for selected platforms
MIPS: fix build on non-linux hosts
MIPS: ath79: fix ar933x uart parity mode
MIPS: Fix bounds check virt_addr_valid
Two iscsi fixes. One for an oops in the client which can be triggered
by the server authentication protocol and the other in the target code
which causes data corruption.
Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
-----BEGIN PGP SIGNATURE-----
iJwEABMIAEQWIQTnYEDbdso9F2cI+arnQslM7pishQUCXR/L4iYcamFtZXMuYm90
dG9tbGV5QGhhbnNlbnBhcnRuZXJzaGlwLmNvbQAKCRDnQslM7pisheVbAQDCQ05x
L/SX0WyiX3dW0pp0kojnzPmfYj7NTBN7QlRwmQD/ZKEk/zc/P26q0lfdswhi8VJG
mCaBruZwasyCZvktVEo=
=eq7T
-----END PGP SIGNATURE-----
Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"Two iscsi fixes.
One for an oops in the client which can be triggered by the server
authentication protocol and the other in the target code which causes
data corruption"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: iscsi: set auth_protocol back to NULL if CHAP_A value is not supported
scsi: target/iblock: Fix overrun in WRITE SAME emulation
Pull vfs fixlet from Al Viro:
"Fix bogus default y in Kconfig (VALIDATE_FS_PARSER)
That thing should not be turned on by default, especially since it's
not quiet in case it finds no problems. Geert has sent the obvious fix
quite a few times, but it fell through the cracks"
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
fs: VALIDATE_FS_PARSER should default to n
When the blk-mq debugfs file creation logic was "cleaned up" it was
cleaned up too much, causing the queue file to not be created in the
correct location. Turns out the check for the directory being present
is needed as if that has not happened yet, the files should not be
created, and the function will be called later on in the initialization
code so that the files can be created in the correct location.
Fixes: 6cfc0081b0 ("blk-mq: no need to check return value of debugfs_create functions")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: linux-block@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.22 (GNU/Linux)
iQEcBAABAgAGBQJdH7H6AAoJEL/70l94x66D3XcH/0If8IAHn746Y+2QoasbmW0m
lACzkzNZYzKWUgzJ9+r4eNe0tq7wUzU546Jl2GgOjIcQGnRCPAJMGodGTEq5AGo2
XWGHXkKLa9w3bSCRi9Ov7d1CGO9oDk6PtkTP4xT0oVyEtsgPdKWdEz2dDe8BnK7T
BynVcz3JZOm+vE4N1GusjkdN6hbVFBdTZNSvN9uE3iNoUBUoe98Ctv2HiSca9tDF
oPJpSWLSThC/cRXn1EX7uXiUTZ2bTaS+mCdwmR6QS5VBEHR+ssWzHq4ru/U0p/vO
7L9AZoyCTqW5pOMuYZFnfntnbu54RUnfc7A0jyqzM2SFeBt8h9hpsVXoWmtnL5k=
=qzdP
-----END PGP SIGNATURE-----
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm fixes from Paolo Bonzini:
"x86 bugfix patches and one compilation fix for ARM"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: arm64/sve: Fix vq_present() macro to yield a bool
KVM: LAPIC: Fix pending interrupt in IRR blocked by software disable LAPIC
KVM: nVMX: Change KVM_STATE_NESTED_EVMCS to signal vmcs12 is copied from eVMCS
KVM: nVMX: Allow restore nested-state to enable eVMCS when vCPU in SMM
KVM: x86: degrade WARN to pr_warn_ratelimited
- Fix a build dependency wrongly described.
- Fix the sunxi NAND driver for A23/A33 SoCs by 1/ reverting the
faulty commit introducing broken DMA support and 2/ applying another
commit bringing working DMA support.
-----BEGIN PGP SIGNATURE-----
iQEzBAABCgAdFiEE9HuaYnbmDhq/XIDIJWrqGEe9VoQFAl0fv4EACgkQJWrqGEe9
VoQpzwgAoh+L1QH9KKBm/g7/4k8D+O1TmSEE50e5xmg8y0cQsqOwwa/Z+Jaeo4vm
CsCRTsbOe7aivUX1EBbnL2Ye4nksZJGiujnIE12dhRy94oGE6NERsfMs8a2/Ksic
F4is5CwR1lWAVq3mvj5WhofW+Fxh/0+NK38g/iCY87H0e2mIuateuaGhnfpfrD8y
uJJHjpQHRkWaehXoL1GnytBVRLiX/vKhZyICiev1qQb6Kk5JTw/xuoFqkXT1wNOj
pr/IKpS76+j+WfN7gwPvAMdkr7/LrWxhz0XdH0+/r77JY5udo6ht+KxMoLgeGYoc
8VDa9Y2q+7NQcRAJ1StMgsMJG4vcCA==
=U0/M
-----END PGP SIGNATURE-----
Merge tag 'mtd/fixes-for-5.2-final' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux
Pull mtf fixes from Miquel Raynal:
- Fix the memory organization structure of a Macronix SPI-NAND chip.
- Fix a build dependency wrongly described.
- Fix the sunxi NAND driver for A23/A33 SoCs by (a) reverting the
faulty commit introducing broken DMA support and (b) applying another
commit bringing working DMA support.
* tag 'mtd/fixes-for-5.2-final' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux:
mtd: rawnand: sunxi: Add A23/A33 DMA support with extra MBUS configuration
Revert "mtd: rawnand: sunxi: Add A23/A33 DMA support"
mtd: rawnand: ingenic: Fix ingenic_ecc dependency
mtd: spinand: Fix max_bad_eraseblocks_per_lun info in memorg
Pull i2c fixlet from Wolfram Sang:
"I2C has a MAINTAINERS update which will be benfitial for developers,
so let's add it right away"
* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: tegra: Add Dmitry as a reviewer
failures on high-memory machines and fixing the DRC over RDMA.
-----BEGIN PGP SIGNATURE-----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=f2gw
-----END PGP SIGNATURE-----
Merge tag 'nfsd-5.2-2' of git://linux-nfs.org/~bfields/linux
Pull nfsd fixes from Bruce Fields:
"Two more quick bugfixes for nfsd: fixing a regression causing mount
failures on high-memory machines and fixing the DRC over RDMA"
* tag 'nfsd-5.2-2' of git://linux-nfs.org/~bfields/linux:
nfsd: Fix overflow causing non-working mounts on 1 TB machines
svcrdma: Ignore source port when computing DRC hash
Allwinner NAND controllers can make use of DMA to enhance the I/O
throughput thanks to ECC pipelining. DMA handling with A23/A33 NAND IP
is a bit different than with the older SoCs, hence the introduction of
a new compatible to handle:
* the differences between register offsets,
* the burst length change from 4 to minimum 8,
* manage SRAM accesses through MBUS with extra configuration.
Fixes: c49836f05a ("mtd: rawnand: sunxi: Add A23/A33 DMA support")
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
This reverts commit c49836f05a.
The commit is wrong and its approach actually does not work. Let's
revert it in order to add the feature with a clean patch.
Fixes: c49836f05a ("mtd: rawnand: sunxi: Add A23/A33 DMA support")
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
I'm contributing to Tegra's upstream development in general and happened
to review the Tegra's I2C patches for awhile because I'm actively using
upstream kernel on all of my Tegra-powered devices and initially some of
the submitted patches were getting my attention since they were causing
problems. Recently Wolfram Sang asked whether I'm interested in becoming
a reviewer for the driver and I don't mind at all.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
[wsa: ack was expressed by Thierry Reding in a mail thread]
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
CONFIG_VALIDATE_FS_PARSER is a debugging tool to check that the parser
tables are vaguely sane. It was set to default to 'Y' for the moment to
catch errors in upcoming fs conversion development.
Make sure it is not enabled by default in the final release of v5.1.
Fixes: 31d921c7fb ("vfs: Add configuration parser helpers")
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
The original implementation of vq_present() relied on aggressive
inlining in order for the compiler to know that the code is
correct, due to some const-casting issues. This was causing sparse
and clang to complain, while GCC compiled cleanly.
Commit 0c529ff789 addressed this problem, but since vq_present()
is no longer a function, there is now no implicit casting of the
returned value to the return type (bool).
In set_sve_vls(), this uncast bit value is compared against a bool,
and so may spuriously compare as unequal when both are nonzero. As
a result, KVM may reject valid SVE vector length configurations as
invalid, and vice versa.
Fix it by forcing the returned value to a bool.
Signed-off-by: Zhang Lei <zhang.lei@jp.fujitsu.com>
Fixes: 0c529ff789 ("KVM: arm64: Implement vq_present() as a macro")
Signed-off-by: Dave Martin <Dave.Martin@arm.com> [commit message rewrite]
Cc: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
One space is left unused in circular FIFO to differentiate
'full' and 'empty' cases. So take that in to account while
counting for the descriptors completed.
Fixes the issue reported here,
https://lkml.org/lkml/2019/6/18/669
Cc: stable@vger.kernel.org
Reported-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Sricharan R <sricharan@codeaurora.org>
Tested-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
It is possible for an irq triggered by channel0 to be received later
after clks are disabled once firmware loaded during sdma probe. If
that happens then clearing them by writing to SDMA_H_INTR won't work
and the kernel will hang processing infinite interrupts. Actually,
don't need interrupt triggered on channel0 since it's pollling
SDMA_H_STATSTOP to know channel0 done rather than interrupt in
current code, just clear BD_INTR to disable channel0 interrupt to
avoid the above case.
This issue was brought by commit 1d069bfa3c ("dmaengine: imx-sdma:
ack channel 0 IRQ in the interrupt handler") which didn't take care
the above case.
Fixes: 1d069bfa3c ("dmaengine: imx-sdma: ack channel 0 IRQ in the interrupt handler")
Cc: stable@vger.kernel.org #5.0+
Signed-off-by: Robin Gong <yibin.gong@nxp.com>
Reported-by: Sven Van Asbroeck <thesven73@gmail.com>
Tested-by: Sven Van Asbroeck <thesven73@gmail.com>
Reviewed-by: Michael Olbrich <m.olbrich@pengutronix.de>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
If probe() fails anywhere beyond the point where
sdma_get_firmware() is called, then a kernel oops may occur.
Problematic sequence of events:
1. probe() calls sdma_get_firmware(), which schedules the
firmware callback to run when firmware becomes available,
using the sdma instance structure as the context
2. probe() encounters an error, which deallocates the
sdma instance structure
3. firmware becomes available, firmware callback is
called with deallocated sdma instance structure
4. use after free - kernel oops !
Solution: only attempt to load firmware when we're certain
that probe() will succeed. This guarantees that the firmware
callback's context will remain valid.
Note that the remove() path is unaffected by this issue: the
firmware loader will increment the driver module's use count,
ensuring that the module cannot be unloaded while the
firmware callback is pending or running.
Signed-off-by: Sven Van Asbroeck <TheSven73@gmail.com>
Reviewed-by: Robin Gong <yibin.gong@nxp.com>
[vkoul: fixed braces for if condition]
Signed-off-by: Vinod Koul <vkoul@kernel.org>
The "pending" variable was a u32 but we cast it to an unsigned long
pointer when we do the for_each_set_bit() loop. The problem is that on
big endian 64bit systems that results in an out of bounds read.
Fixes: 4e4106f5e9 ("dmaengine: jz4780: Fix transfers being ACKed too soon")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
-----BEGIN PGP SIGNATURE-----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=Ipfl
-----END PGP SIGNATURE-----
Merge tag 'drm-fixes-2019-07-05-1' of git://anongit.freedesktop.org/drm/drm
Pull drm fixes from Dave Airlie:
"I skipped last week because there wasn't much worth doing, this week
got a few more fixes in.
amdgpu:
- default register value change
- runpm regression fix
- fan control fix
i915:
- fix Ironlake regression
panfrost:
- fix a double free
virtio:
- fix a locking bug
imx:
- crtc disable fixes"
* tag 'drm-fixes-2019-07-05-1' of git://anongit.freedesktop.org/drm/drm:
drm/imx: only send event on crtc disable if kept disabled
drm/imx: notify drm core before sending event during crtc disable
drm/i915/ringbuffer: EMIT_INVALIDATE *before* switch context
drm/amdgpu/gfx9: use reset default for PA_SC_FIFO_SIZE
drm/amdgpu: Don't skip display settings in hwmgr_resume()
drm/amd/powerplay: use hardware fan control if no powerplay fan table
drm/panfrost: Fix a double-free error
drm/etnaviv: add missing failure path to destroy suballoc
drm/virtio: move drm_connector_update_edid_property() call
This series fixes stale vblank timestamps in the first event sent after
a crtc was disabled. The core now is notified via drm_crtc_vblank_off
before sending the last pending event in atomic_disable. If the crtc is
reenabled right away during to a modeset, the event is not sent at all,
as the next vblank will take care of it.
-----BEGIN PGP SIGNATURE-----
iI0EABYIADUWIQRRO6F6WdpH1R0vGibVhaclGDdiwAUCXR3UqxcccC56YWJlbEBw
ZW5ndXRyb25peC5kZQAKCRDVhaclGDdiwFogAQCE6HPaBbBOHJBT5hU4ysJG1Qge
GuS/OKB2ZUDyrf3a1wEAy1qa+49x68a2coFksD571VDf+Pm85mRk+NrKl1oFFQo=
=Bs9J
-----END PGP SIGNATURE-----
Merge tag 'imx-drm-fixes-2019-07-04' of git://git.pengutronix.de/git/pza/linux into drm-fixes
drm/imx: fix stale vblank timestamp after a modeset
This series fixes stale vblank timestamps in the first event sent after
a crtc was disabled. The core now is notified via drm_crtc_vblank_off
before sending the last pending event in atomic_disable. If the crtc is
reenabled right away during to a modeset, the event is not sent at all,
as the next vblank will take care of it.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Philipp Zabel <p.zabel@pengutronix.de>
Link: https://patchwork.freedesktop.org/patch/msgid/1562237119.6641.16.camel@pengutronix.de
Pull crypto fixes from Herbert Xu:
"This fixes two memory leaks and a list corruption bug"
* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
crypto: user - prevent operating on larval algorithms
crypto: cryptd - Fix skcipher instance memory leak
lib/mpi: Fix karactx leak in mpi_powm
Likely our final small batch of fixes for 5.2:
- Some fixes for USB on davinci, regressions were due to the recent
conversion of the OCHI driver to use GPIO regulators
- A fixup of kconfig dependencies for a TI irq controller
- A switch of armada-38x to avoid dropped characters on uart, caused by
switch of base inherited platform description earlier this year
-----BEGIN PGP SIGNATURE-----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=2Hcr
-----END PGP SIGNATURE-----
Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC fixes from Olof Johansson:
"Likely our final small batch of fixes for 5.2:
- Some fixes for USB on davinci, regressions were due to the recent
conversion of the OCHI driver to use GPIO regulators
- A fixup of kconfig dependencies for a TI irq controller
- A switch of armada-38x to avoid dropped characters on uart, caused
by switch of base inherited platform description earlier this year"
* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
ARM: davinci: da830-evm: fix GPIO lookup for OHCI
ARM: davinci: omapl138-hawk: add missing regulator constraints for OHCI
ARM: davinci: da830-evm: add missing regulator constraints for OHCI
soc: ti: fix irq-ti-sci link error
ARM: dts: armada-xp-98dx3236: Switch to armada-38x-uart serial node
- Fix xarray entry association for mixed mappings
-----BEGIN PGP SIGNATURE-----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=NNXl
-----END PGP SIGNATURE-----
Merge tag 'dax-fix-5.2-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
Pull dax fix from Dan Williams:
"A single dax fix that has been soaking awaiting other fixes under
discussion to join it. As it is getting late in the cycle lets proceed
with this fix and save follow-on changes for post-v5.3-rc1.
- Fix xarray entry association for mixed mappings"
* tag 'dax-fix-5.2-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
dax: Fix xarray entry association for mixed mappings
swap_readpage() sets waiter = bio->bi_private even if synchronous = F,
this means that the caller can get the spurious wakeup after return.
This can be fatal if blk_wake_io_task() does
set_current_state(TASK_RUNNING) after the caller does
set_special_state(), in the worst case the kernel can crash in
do_task_dead().
Link: http://lkml.kernel.org/r/20190704160301.GA5956@redhat.com
Fixes: 0619317ff8 ("block: add polled wakeup task helper")
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Reported-by: Qian Cai <cai@lca.pw>
Acked-by: Hugh Dickins <hughd@google.com>
Reviewed-by: Jens Axboe <axboe@kernel.dk>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
devm_ioremap_resource() does not currently take 'const' arguments, which
results in a warning from the first driver trying to do it anyway:
drivers/gpio/gpio-amd-fch.c: In function 'amd_fch_gpio_probe':
drivers/gpio/gpio-amd-fch.c:171:49: error: passing argument 2 of 'devm_ioremap_resource' discards 'const' qualifier from pointer target type [-Werror=discarded-qualifiers]
priv->base = devm_ioremap_resource(&pdev->dev, &amd_fch_gpio_iores);
^~~~~~~~~~~~~~~~~~~
Change the prototype to allow it, as there is no real reason not to.
Link: http://lkml.kernel.org/r/20190628150049.1108048-1-arnd@arndb.de
Fixes: 9bb2e0452508 ("gpio: amd: Make resource struct const")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Enrico Weigelt <info@metux.net>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Cc: Ulf Hansson <ulf.hansson@linaro.org>
Cc: Andy Shevchenko <andy.shevchenko@gmail.com>
Cc: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
In production we have noticed hard lockups on large machines running
large jobs due to kswaps hoarding lru lock within isolate_lru_pages when
sc->reclaim_idx is 0 which is a small zone. The lru was couple hundred
GiBs and the condition (page_zonenum(page) > sc->reclaim_idx) in
isolate_lru_pages() was basically skipping GiBs of pages while holding
the LRU spinlock with interrupt disabled.
On further inspection, it seems like there are two issues:
(1) If kswapd on the return from balance_pgdat() could not sleep (i.e.
node is still unbalanced), the classzone_idx is unintentionally set
to 0 and the whole reclaim cycle of kswapd will try to reclaim only
the lowest and smallest zone while traversing the whole memory.
(2) Fundamentally isolate_lru_pages() is really bad when the
allocation has woken kswapd for a smaller zone on a very large machine
running very large jobs. It can hoard the LRU spinlock while skipping
over 100s of GiBs of pages.
This patch only fixes (1). (2) needs a more fundamental solution. To
fix (1), in the kswapd context, if pgdat->kswapd_classzone_idx is
invalid use the classzone_idx of the previous kswapd loop otherwise use
the one the waker has requested.
Link: http://lkml.kernel.org/r/20190701201847.251028-1-shakeelb@google.com
Fixes: e716f2eb24 ("mm, vmscan: prevent kswapd sleeping prematurely due to mismatched classzone_idx")
Signed-off-by: Shakeel Butt <shakeelb@google.com>
Reviewed-by: Yang Shi <yang.shi@linux.alibaba.com>
Acked-by: Mel Gorman <mgorman@techsingularity.net>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Hillf Danton <hdanton@sina.com>
Cc: Roman Gushchin <guro@fb.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
When IOCB_CMD_POLL is used on a userfaultfd, aio_poll() disables IRQs
and takes kioctx::ctx_lock, then userfaultfd_ctx::fd_wqh.lock.
This may have to wait for userfaultfd_ctx::fd_wqh.lock to be released by
userfaultfd_ctx_read(), which in turn can be waiting for
userfaultfd_ctx::fault_pending_wqh.lock or
userfaultfd_ctx::event_wqh.lock.
But elsewhere the fault_pending_wqh and event_wqh locks are taken with
IRQs enabled. Since the IRQ handler may take kioctx::ctx_lock, lockdep
reports that a deadlock is possible.
Fix it by always disabling IRQs when taking the fault_pending_wqh and
event_wqh locks.
Commit ae62c16e10 ("userfaultfd: disable irqs when taking the
waitqueue lock") didn't fix this because it only accounted for the
fd_wqh lock, not the other locks nested inside it.
Link: http://lkml.kernel.org/r/20190627075004.21259-1-ebiggers@kernel.org
Fixes: bfe4037e72 ("aio: implement IOCB_CMD_POLL")
Signed-off-by: Eric Biggers <ebiggers@google.com>
Reported-by: syzbot+fab6de82892b6b9c6191@syzkaller.appspotmail.com
Reported-by: syzbot+53c0b767f7ca0dc0c451@syzkaller.appspotmail.com
Reported-by: syzbot+a3accb352f9c22041cfa@syzkaller.appspotmail.com
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: <stable@vger.kernel.org> [4.19+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Commit 0e56acae4b ("mm: initialize MAX_ORDER_NR_PAGES at a time
instead of doing larger sections") is causing a regression on some
systems when the kernel is booted as Xen dom0.
The system will just hang in early boot.
Reason is an endless loop in get_page_from_freelist() in case the first
zone looked at has no free memory. deferred_grow_zone() is always
returning true due to the following code snipplet:
/* If the zone is empty somebody else may have cleared out the zone */
if (!deferred_init_mem_pfn_range_in_zone(&i, zone, &spfn, &epfn,
first_deferred_pfn)) {
pgdat->first_deferred_pfn = ULONG_MAX;
pgdat_resize_unlock(pgdat, &flags);
return true;
}
This in turn results in the loop as get_page_from_freelist() is assuming
forward progress can be made by doing some more struct page
initialization.
Link: http://lkml.kernel.org/r/20190620160821.4210-1-jgross@suse.com
Fixes: 0e56acae4b ("mm: initialize MAX_ORDER_NR_PAGES at a time instead of doing larger sections")
Signed-off-by: Juergen Gross <jgross@suse.com>
Suggested-by: Alexander Duyck <alexander.h.duyck@linux.intel.com>
Acked-by: Alexander Duyck <alexander.h.duyck@linux.intel.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Pavel Tatashin <pasha.tatashin@soleen.com>
Cc: Mike Rapoport <rppt@linux.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Here are a collection of small fixes for:
- A race with ASoC HD-audio registration
- LINE6 usb-audio memory overwrite by malformed descriptor
- FireWire MIDI handling
- Missing cast for bit shifts in a few USB-audio quirks
- The wrong function calls in minor OSS sequencer code paths
- A couple of HD-audio quirks
-----BEGIN PGP SIGNATURE-----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=KxxN
-----END PGP SIGNATURE-----
Merge tag 'sound-5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"Here are a collection of small fixes for:
- A race with ASoC HD-audio registration
- LINE6 usb-audio memory overwrite by malformed descriptor
- FireWire MIDI handling
- Missing cast for bit shifts in a few USB-audio quirks
- The wrong function calls in minor OSS sequencer code paths
- A couple of HD-audio quirks"
* tag 'sound-5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: line6: Fix write on zero-sized buffer
ALSA: hda: Fix widget_mutex incomplete protection
ALSA: firewire-lib/fireworks: fix miss detection of received MIDI messages
ALSA: seq: fix incorrect order of dest_client/dest_ports arguments
ALSA: hda/realtek - Change front mic location for Lenovo M710q
ALSA: usb-audio: fix sign unintended sign extension on left shifts
ALSA: hda/realtek: Add quirks for several Clevo notebook barebones
Fix two issues:
When called for PTRACE_TRACEME, ptrace_link() would obtain an RCU
reference to the parent's objective credentials, then give that pointer
to get_cred(). However, the object lifetime rules for things like
struct cred do not permit unconditionally turning an RCU reference into
a stable reference.
PTRACE_TRACEME records the parent's credentials as if the parent was
acting as the subject, but that's not the case. If a malicious
unprivileged child uses PTRACE_TRACEME and the parent is privileged, and
at a later point, the parent process becomes attacker-controlled
(because it drops privileges and calls execve()), the attacker ends up
with control over two processes with a privileged ptrace relationship,
which can be abused to ptrace a suid binary and obtain root privileges.
Fix both of these by always recording the credentials of the process
that is requesting the creation of the ptrace relationship:
current_cred() can't change under us, and current is the proper subject
for access control.
This change is theoretically userspace-visible, but I am not aware of
any code that it will actually break.
Fixes: 64b875f7ac ("ptrace: Capture the ptracer's creds not PT_PTRACE_CAP")
Signed-off-by: Jann Horn <jannh@google.com>
Acked-by: Oleg Nesterov <oleg@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The event will be sent as part of the vblank enable during the modeset
if the crtc is not being kept disabled.
Fixes: 5f2f911578 ("drm/imx: atomic phase 3 step 1: Use atomic configuration")
Signed-off-by: Robert Beckett <bob.beckett@collabora.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Notify drm core before sending pending events during crtc disable.
This fixes the first event after disable having an old stale timestamp
by having drm_crtc_vblank_off update the timestamp to now.
This was seen while debugging weston log message:
Warning: computed repaint delay is insane: -8212 msec
This occurred due to:
1. driver starts up
2. fbcon comes along and restores fbdev, enabling vblank
3. vblank_disable_fn fires via timer disabling vblank, keeping vblank
seq number and time set at current value
(some time later)
4. weston starts and does a modeset
5. atomic commit disables crtc while it does the modeset
6. ipu_crtc_atomic_disable sends vblank with old seq number and time
Fixes: a474478642 ("drm/imx: fix crtc vblank state regression")
Signed-off-by: Robert Beckett <bob.beckett@collabora.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
- Fixes a deadlock from a previous fix to keep module loading
and function tracing text modifications from stepping on each other.
(this has a few patches to help document the issue in comments)
- Fix a crash when the snapshot buffer gets out of sync with the
main ring buffer.
- Fix a memory leak when reading the memory logs
-----BEGIN PGP SIGNATURE-----
iIoEABYIADIWIQRRSw7ePDh/lE+zeZMp5XQQmuv6qgUCXRzBCBQccm9zdGVkdEBn
b29kbWlzLm9yZwAKCRAp5XQQmuv6qnDaAP9qTFBOFtgIGCT5wVP8xjQeESxh1b8R
tbaT7/U2oPpeiwEAvp1mYo5UYcc8KauBqVaLSLJVN4pv07xiZF5Qgh9C1QE=
=m2IT
-----END PGP SIGNATURE-----
Merge tag 'trace-v5.2-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing fixes from Steven Rostedt:
"This includes three fixes:
- Fix a deadlock from a previous fix to keep module loading and
function tracing text modifications from stepping on each other
(this has a few patches to help document the issue in comments)
- Fix a crash when the snapshot buffer gets out of sync with the main
ring buffer
- Fix a memory leak when reading the memory logs"
* tag 'trace-v5.2-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
ftrace/x86: Anotate text_mutex split between ftrace_arch_code_modify_post_process() and ftrace_arch_code_modify_prepare()
tracing/snapshot: Resize spare buffer if size changed
tracing: Fix memory leak in tracing_err_log_open()
ftrace/x86: Add a comment to why we take text_mutex in ftrace_arch_code_modify_prepare()
ftrace/x86: Remove possible deadlock between register_kprobe() and ftrace_run_update_code()
in the current kernel cycle.
-----BEGIN PGP SIGNATURE-----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=C8n2
-----END PGP SIGNATURE-----
Merge tag 'gpio-v5.2-4' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull GPIO fix from Linus Walleij:
"A single fixup for the SPI CS gpios that regressed in the current
kernel cycle"
* tag 'gpio-v5.2-4' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
gpio/spi: Fix spi-gpio regression on active high CS
Since commit 10a68cdf10 (nfsd: fix performance-limiting session
calculation) (Linux 5.1-rc1 and 4.19.31), shares from NFS servers with
1 TB of memory cannot be mounted anymore. The mount just hangs on the
client.
The gist of commit 10a68cdf10 is the change below.
-avail = clamp_t(int, avail, slotsize, avail/3);
+avail = clamp_t(int, avail, slotsize, total_avail/3);
Here are the macros.
#define min_t(type, x, y) __careful_cmp((type)(x), (type)(y), <)
#define clamp_t(type, val, lo, hi) min_t(type, max_t(type, val, lo), hi)
`total_avail` is 8,434,659,328 on the 1 TB machine. `clamp_t()` casts
the values to `int`, which for 32-bit integers can only hold values
−2,147,483,648 (−2^31) through 2,147,483,647 (2^31 − 1).
`avail` (in the function signature) is just 65536, so that no overflow
was happening. Before the commit the assignment would result in 21845,
and `num = 4`.
When using `total_avail`, it is causing the assignment to be
18446744072226137429 (printed as %lu), and `num` is then 4164608182.
My next guess is, that `nfsd_drc_mem_used` is then exceeded, and the
server thinks there is no memory available any more for this client.
Updating the arguments of `clamp_t()` and `min_t()` to `unsigned long`
fixes the issue.
Now, `avail = 65536` (before commit 10a68cdf10 `avail = 21845`), but
`num = 4` remains the same.
Fixes: c54f24e338 (nfsd: fix performance-limiting session calculation)
Cc: stable@vger.kernel.org
Signed-off-by: Paul Menzel <pmenzel@molgen.mpg.de>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Michal Suchanek reported [1] that running the pcrypt_aead01 test from
LTP [2] in a loop and holding Ctrl-C causes a NULL dereference of
alg->cra_users.next in crypto_remove_spawns(), via crypto_del_alg().
The test repeatedly uses CRYPTO_MSG_NEWALG and CRYPTO_MSG_DELALG.
The crash occurs when the instance that CRYPTO_MSG_DELALG is trying to
unregister isn't a real registered algorithm, but rather is a "test
larval", which is a special "algorithm" added to the algorithms list
while the real algorithm is still being tested. Larvals don't have
initialized cra_users, so that causes the crash. Normally pcrypt_aead01
doesn't trigger this because CRYPTO_MSG_NEWALG waits for the algorithm
to be tested; however, CRYPTO_MSG_NEWALG returns early when interrupted.
Everything else in the "crypto user configuration" API has this same bug
too, i.e. it inappropriately allows operating on larval algorithms
(though it doesn't look like the other cases can cause a crash).
Fix this by making crypto_alg_match() exclude larval algorithms.
[1] https://lkml.kernel.org/r/20190625071624.27039-1-msuchanek@suse.de
[2] https://github.com/linux-test-project/ltp/blob/20190517/testcases/kernel/crypto/pcrypt_aead01.c
Reported-by: Michal Suchanek <msuchanek@suse.de>
Fixes: a38f7907b9 ("crypto: Add userspace configuration API")
Cc: <stable@vger.kernel.org> # v3.2+
Cc: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
cryptd_skcipher_free() fails to free the struct skcipher_instance
allocated in cryptd_create_skcipher(), leading to a memory leak. This
is detected by kmemleak on bootup on ARM64 platforms:
unreferenced object 0xffff80003377b180 (size 1024):
comm "cryptomgr_probe", pid 822, jiffies 4294894830 (age 52.760s)
backtrace:
kmem_cache_alloc_trace+0x270/0x2d0
cryptd_create+0x990/0x124c
cryptomgr_probe+0x5c/0x1e8
kthread+0x258/0x318
ret_from_fork+0x10/0x1c
Fixes: 4e0958d19b ("crypto: cryptd - Add support for skcipher")
Cc: <stable@vger.kernel.org>
Signed-off-by: Vincent Whitchurch <vincent.whitchurch@axis.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Sometimes mpi_powm will leak karactx because a memory allocation
failure causes a bail-out that skips the freeing of karactx. This
patch moves the freeing of karactx to the end of the function like
everything else so that it can't be skipped.
Reported-by: syzbot+f7baccc38dcc1e094e77@syzkaller.appspotmail.com
Fixes: cdec9cb516 ("crypto: GnuPG based MPI lib - source files...")
Cc: <stable@vger.kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Reviewed-by: Eric Biggers <ebiggers@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Steve French