This nasty little syzbot repro:
https://syzkaller.appspot.com/x/repro.syz?x=12c7a94f400000
Creates overlay mounts where the same directory is both in upper and lower
layers. Simplified example:
mkdir foo work
mount -t overlay none foo -o"lowerdir=.,upperdir=foo,workdir=work"
The repro runs several threads in parallel that attempt to chdir into foo
and attempt to symlink/rename/exec/mkdir the file bar.
The repro hits a WARN_ON() I placed in ovl_instantiate(), which suggests
that an overlay inode already exists in cache and is hashed by the pointer
of the real upper dentry that ovl_create_real() has just created. At the
point of the WARN_ON(), for overlay dir inode lock is held and upper dir
inode lock, so at first, I did not see how this was possible.
On a closer look, I see that after ovl_create_real(), because of the
overlapping upper and lower layers, a lookup by another thread can find the
file foo/bar that was just created in upper layer, at overlay path
foo/foo/bar and hash the an overlay inode with the new real dentry as lower
dentry. This is possible because the overlay directory foo/foo is not
locked and the upper dentry foo/bar is in dcache, so ovl_lookup() can find
it without taking upper dir inode shared lock.
Overlapping layers is considered a wrong setup which would result in
unexpected behavior, but it shouldn't crash the kernel and it shouldn't
trigger WARN_ON() either, so relax this WARN_ON() and leave a pr_warn()
instead to cover all cases of failure to get an overlay inode.
The error returned from failure to insert new inode to cache with
inode_insert5() was changed to -EEXIST, to distinguish from the error
-ENOMEM returned on failure to get/allocate inode with iget5_locked().
Reported-by: syzbot+9c69c282adc4edd2b540@syzkaller.appspotmail.com
Fixes: 01b39dcc95 ("ovl: use inode_insert5() to hash a newly...")
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
This function is referenced from assembler, so in LTO
it needs to be global and visible to not be optimized away.
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Link: https://lkml.kernel.org/r/20190330004743.29541-7-andi@firstfloor.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
I plan on extending this set of drivers so add myself as maintainer.
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Add support for the push- and slide-button events for max77650.
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
This adds basic support for LEDs for the max77650 PMIC. The device has
three current sinks for driving LEDs.
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Acked-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Add GPIO support for max77650 mfd device. This PMIC exposes a single
GPIO line.
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Add basic support for the battery charger for max77650 PMIC.
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Add the core MFD driver for max77650 PMIC. We define five sub-devices
for which the drivers will be added in subsequent patches.
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Add a kernel doc for mfd_add_devices().
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Add the DT binding document for the onkey module of max77650.
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Add the DT binding document for the LEDs module of max77650.
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Add the DT binding document for the battery charger module of max77650.
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Add a DT binding document for max77650 ultra-low power PMIC. This
describes the core mfd device and the GPIO module.
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Fix a minor typo in the MDS documentation: "eanbled" -> "enabled".
Reported-by: Jeff Bastian <jbastian@redhat.com>
Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Adjust the last two rows in the table that display possible values when
MDS mitigation is enabled. They both were slightly innacurate.
In addition, convert the table of possible values and their descriptions
to a list-table. The simple table format uses the top border of equals
signs to determine cell width which resulted in the first column being
far too wide in comparison to the second column that contained the
majority of the text.
Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Updated the documentation for a new CVE-2019-11091 Microarchitectural Data
Sampling Uncacheable Memory (MDSUM) which is a variant of
Microarchitectural Data Sampling (MDS). MDS is a family of side channel
attacks on internal buffers in Intel CPUs.
MDSUM is a special case of MSBDS, MFBDS and MLPDS. An uncacheable load from
memory that takes a fault or assist can leave data in a microarchitectural
structure that may later be observed using one of the same methods used by
MSBDS, MFBDS or MLPDS. There are no new code changes expected for MDSUM.
The existing mitigation for MDS applies to MDSUM as well.
Signed-off-by: Pawan Gupta <pawan.kumar.gupta@linux.intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Tyler Hicks <tyhicks@canonical.com>
Reviewed-by: Jon Masters <jcm@redhat.com>
Remove hp_pin = 0 return. Add the default pin 0x21 as headphone.
Supported low power consumption, it must do depop procedure when
headset jack was plugged or unplugged.
So, alc256_init() and alc256_shutup() must run delay when headset jack
was plugged or unplugged.
If depop procedure not run with delay, it will have a chance to let
power consumption raise high.
[ NOTE: this is a quite quite similar change for ALC295 by commit
d3ba58bb89 ("ALSA: hda/realtek - Support low power consumption for
ALC295"), but applied to ALC256 codec instead -- tiwai ]
Fixes: 8983eb602a ("ALSA: hda/realtek - Move to ACT_INIT state")
Signed-off-by: Kailang Yang <kailang@realtek.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Since commit "watchdog: Use depends instead of select for pretimeout
governors", it was possible to enable pretimeout governors but keep all
of them disabled. Doing this results in the following build failure.
../drivers/watchdog/watchdog_pretimeout.c:
In function ‘watchdog_register_governor’:
../drivers/watchdog/watchdog_pretimeout.c:139:26: error:
‘WATCHDOG_PRETIMEOUT_DEFAULT_GOV’ undeclared
if (!strncmp(gov->name, WATCHDOG_PRETIMEOUT_DEFAULT_GOV,
Since it does not make sense to enable pretimeout support but disable
all pretimeout governors, enforce that at least one of them is always
enabled.
Fixes: f627ac0e12 ("watchdog: Use depends instead of select for pretimeout governors")
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
A bunch of driver specific fixes that came in since the initial pull
request for v5.2, mainly warning fixes for the newly added Sound Open
Firmware code which people appeared to only start looking at after I'd
sent the pull request.
-----BEGIN PGP SIGNATURE-----
iQFHBAABCgAxFiEEreZoqmdXGLWf4p/qJNaLcl1Uh9AFAlzSh/cTHGJyb29uaWVA
a2VybmVsLm9yZwAKCRAk1otyXVSH0MjtB/4xrpGk9Vk2IWJbRMZwpbHlt9R/iehc
gf8BmTeEhkhACuBTCej0i7tj4a6KqTDFdwTahTvTnIZTt6u1pdRcQyo8tPpoT+NX
Mky5IuYcLuxJlKnHVuxuMUi9jYSRyrNUN4lm04bEDMk7Qu455+7LWA63H+1TYEPV
qB8AguxTIupbok51y4Q8rNZFFaatdVMKIPjZCZsthwN5uJEu/BkBt66uyqnrIGKZ
1LYqLt791tYEfc2Soue0GW4al3VAJ2ABQhdHmmDRCw042RHtQiu+qsptlARWQMGg
lhGj10Qdw5GYQdDStZGxvSTU6/uXeKSHkVYG+eXV1NpneWXrLlMDVzTc
=+uWY
-----END PGP SIGNATURE-----
Merge tag 'asoc-v5.2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Fixes for v5.2
A bunch of driver specific fixes that came in since the initial pull
request for v5.2, mainly warning fixes for the newly added Sound Open
Firmware code which people appeared to only start looking at after I'd
sent the pull request.
- Set period minimum size. Ensure at least 5ms period
up to 48kHz/16 bits to prevent underrun/overrun.
- Remove MDMA constraints on period maximum size and
set period maximum to half the buffer maximum size.
Signed-off-by: Olivier Moysan <olivier.moysan@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Some userspace apps, like pulseaudio, may call open, hw_params,
prepare to judge whether the pcm is ready or not. Current hdac_hdmi
will return -ENODEV if monitor is not connected, which will cause
the apps believe the pcm is not ready. Actually PCM for hdmi is ready,
even the monitor is not connected.
This patch removes the check of monitor presence in hw_params, just like
what the legacy HD-Audio driver does.
Signed-off-by: Libin Yang <libin.yang@intel.com>
Acked-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
mt6358_amic_disable() resets PGA to 0.
Save the gain settings from mixer control and restore them when using
the microphone.
Signed-off-by: Tzung-Bi Shih <tzungbi@google.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Output volume settings from mixer controls would be lost.
Imagine that "Headphone Volume" has set to -10dB via amixer:
- in mtk_hp_enable()
- hp_store_gain() saves the volume setting -10dB from regmap_read()
to ana_gain[AUDIO_ANALOG_VOLUME_HPOUTL]
- headset_volume_ramp() ramps up from -10dB to -10dB
- in mtk_hp_disable()
- headset_volume_ramp() ramps down from -10dB to -40dB
Next time in mtk_hp_enable(), hp_store_gain() would save -40dB but
not -10dB. As a result, headset_volume_ramp() would ramp from -10dB to
-40dB (which is mute).
Signed-off-by: Tzung-Bi Shih <tzungbi@google.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Mt6358 ramps up from the smallest volume (i.e. -10dB) to target dB when
opening and ramps down from target dB to mute (i.e. -40dB) when closing.
If target is equal to -10dB when opening, headset_volume_ramp() simply
leaves current setting (which may not be -10dB) unchanged.
Execute the loop at least once to initialize the setting to the
starting point (i.e. from).
Signed-off-by: Tzung-Bi Shih <tzungbi@google.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
The existing code mistakenly uses IS_ENABLED in C code instead of as
in conditional compilation, leading to the following error:
ld: sound/soc/sof/core.o: in function `sof_machine_check':
sound/soc/sof/core.c:279: undefined reference to `sof_nocodec_setup'
Fix by using #if !IS_ENABLED()
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
The SND_SOC_INTEL_COMMON Kconfig was removed months ago from SOF
Kconfig files but is still selected instead of the correct
SND_SOC_SOF_INTEL_COMMON kconfig which does select xtensa stuff,
leading to the following errors.
ld: sound/soc/sof/sof-acpi-dev.o:(.rodata+0x120): undefined reference
to `sof_xtensa_arch_ops'
ld: sound/soc/sof/sof-acpi-dev.o:(.rodata+0x180): undefined reference
to `sof_xtensa_arch_ops'
ld: sound/soc/sof/sof-acpi-dev.o:(.rodata+0x1e0): undefined reference
to `sof_xtensa_arch_ops'
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This fixes a compile warning below by properly handling the error code
from sof_get_ctrl_copy_params():
include/linux/kernel.h:843:43: warning: 'sparams.pl_size' may be used uninitialized in this function [-Wmaybe-uninitialized]
sound/soc/sof/ipc.c:639:34: note: 'sparams.pl_size' was declared here
The function returns an error before setting sparams.pl_size, so it'd
assign an uninitialized value at a later point.
Fixes: 53e0c72d98 ("ASoC: SOF: Add support for IPC IO between DSP and Host")
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
Some architectures set up CFLAGS for linux decompressor phase from
scratch and do not include GCC_PLUGINS_CFLAGS. Since "latent_entropy"
variable declaration is generated by the plugin code itself including
linux/random.h in decompressor code then would cause a build
error. E.g. on s390:
In file included from ./include/linux/net.h:22,
from ./include/linux/skbuff.h:29,
from ./include/linux/if_ether.h:23,
from ./arch/s390/include/asm/diag.h:12,
from arch/s390/boot/startup.c:8:
./include/linux/random.h: In function 'add_latent_entropy':
./include/linux/random.h:26:39: error: 'latent_entropy' undeclared
(first use in this function); did you mean 'add_latent_entropy'?
26 | add_device_randomness((const void *)&latent_entropy,
| ^~~~~~~~~~~~~~
| add_latent_entropy
./include/linux/random.h:26:39: note: each undeclared identifier is
reported only once for each function it appears in
The build error is triggered by commit a80313ff91 ("s390/kernel:
introduce .dma sections") which made it into 5.2 merge window.
To address that avoid using CONFIG_GCC_PLUGIN_LATENT_ENTROPY in
favour of LATENT_ENTROPY_PLUGIN definition which is defined as a
part of gcc plugins cflags and hence reflect more accurately when gcc
plugin is active. Besides that it is also used for similar purpose in
linux/compiler-gcc.h for latent_entropy attribute definition.
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
On the System76 Gazelle (gaze14), there is a headset microphone input
attached to 0x1a that does not have a jack detect. In order to get it
working, the pin configuration needs to be set correctly, and the
ALC269_FIXUP_HEADSET_MODE_NO_HP_MIC fixup needs to be applied. This is
identical to the patch already applied for the System76 Darter Pro
(darp5).
Signed-off-by: Jeremy Soller <jeremy@system76.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Pull networking updates from David Miller:
"Highlights:
1) Support AES128-CCM ciphers in kTLS, from Vakul Garg.
2) Add fib_sync_mem to control the amount of dirty memory we allow to
queue up between synchronize RCU calls, from David Ahern.
3) Make flow classifier more lockless, from Vlad Buslov.
4) Add PHY downshift support to aquantia driver, from Heiner
Kallweit.
5) Add SKB cache for TCP rx and tx, from Eric Dumazet. This reduces
contention on SLAB spinlocks in heavy RPC workloads.
6) Partial GSO offload support in XFRM, from Boris Pismenny.
7) Add fast link down support to ethtool, from Heiner Kallweit.
8) Use siphash for IP ID generator, from Eric Dumazet.
9) Pull nexthops even further out from ipv4/ipv6 routes and FIB
entries, from David Ahern.
10) Move skb->xmit_more into a per-cpu variable, from Florian
Westphal.
11) Improve eBPF verifier speed and increase maximum program size,
from Alexei Starovoitov.
12) Eliminate per-bucket spinlocks in rhashtable, and instead use bit
spinlocks. From Neil Brown.
13) Allow tunneling with GUE encap in ipvs, from Jacky Hu.
14) Improve link partner cap detection in generic PHY code, from
Heiner Kallweit.
15) Add layer 2 encap support to bpf_skb_adjust_room(), from Alan
Maguire.
16) Remove SKB list implementation assumptions in SCTP, your's truly.
17) Various cleanups, optimizations, and simplifications in r8169
driver. From Heiner Kallweit.
18) Add memory accounting on TX and RX path of SCTP, from Xin Long.
19) Switch PHY drivers over to use dynamic featue detection, from
Heiner Kallweit.
20) Support flow steering without masking in dpaa2-eth, from Ioana
Ciocoi.
21) Implement ndo_get_devlink_port in netdevsim driver, from Jiri
Pirko.
22) Increase the strict parsing of current and future netlink
attributes, also export such policies to userspace. From Johannes
Berg.
23) Allow DSA tag drivers to be modular, from Andrew Lunn.
24) Remove legacy DSA probing support, also from Andrew Lunn.
25) Allow ll_temac driver to be used on non-x86 platforms, from Esben
Haabendal.
26) Add a generic tracepoint for TX queue timeouts to ease debugging,
from Cong Wang.
27) More indirect call optimizations, from Paolo Abeni"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1763 commits)
cxgb4: Fix error path in cxgb4_init_module
net: phy: improve pause mode reporting in phy_print_status
dt-bindings: net: Fix a typo in the phy-mode list for ethernet bindings
net: macb: Change interrupt and napi enable order in open
net: ll_temac: Improve error message on error IRQ
net/sched: remove block pointer from common offload structure
net: ethernet: support of_get_mac_address new ERR_PTR error
net: usb: smsc: fix warning reported by kbuild test robot
staging: octeon-ethernet: Fix of_get_mac_address ERR_PTR check
net: dsa: support of_get_mac_address new ERR_PTR error
net: dsa: sja1105: Fix status initialization in sja1105_get_ethtool_stats
vrf: sit mtu should not be updated when vrf netdev is the link
net: dsa: Fix error cleanup path in dsa_init_module
l2tp: Fix possible NULL pointer dereference
taprio: add null check on sched_nest to avoid potential null pointer dereference
net: mvpp2: cls: fix less than zero check on a u32 variable
net_sched: sch_fq: handle non connected flows
net_sched: sch_fq: do not assume EDT packets are ordered
net: hns3: use devm_kcalloc when allocating desc_cb
net: hns3: some cleanup for struct hns3_enet_ring
...
- Fix possible memory leak in reserved-memory failure case
- Support for DMA parent bus which are not a parent node
- Clang -Wunsequenced fix
- Remove some unnecessary prints on memory alloc failures
- Various printk msg and comment fixes
- Update DT schema tools repository location
- Convert simple-framebuffer binding to DT schema
- Bindings for isl68137 and ir38064 trivial devices
- New documentation on binding do's and don't's for binding writers to
ignore
-----BEGIN PGP SIGNATURE-----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=zBKC
-----END PGP SIGNATURE-----
Merge tag 'devicetree-for-5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull Devicetree updates from Rob Herring:
- Fix possible memory leak in reserved-memory failure case
- Support for DMA parent bus which are not a parent node
- Clang -Wunsequenced fix
- Remove some unnecessary prints on memory alloc failures
- Various printk msg and comment fixes
- Update DT schema tools repository location
- Convert simple-framebuffer binding to DT schema
- Bindings for isl68137 and ir38064 trivial devices
- New documentation on binding do's and don't's for binding writers to
ignore
* tag 'devicetree-for-5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (22 commits)
of: unittest: Remove error printing on OOM
of: irq: Remove WARN_ON() for kzalloc() failure
dt-bindings: pinctrl: fix bias-pull,up typo
dt-bindings: Update schema project location to devicetree.org github group
of: fix clang -Wunsequenced for be32_to_cpu()
of/device.c: fix the wrong comments
dt-bindings: Add isl68137 as a trivial device
dt-bindings: Add ir38064 as a trivial device
of: del redundant type conversion
dt-bindings: mfd: axp20x: Add fallback for axp805
of: Improve of_phandle_iterator_next() error message
dt-bindings: connector: Spelling mistake
dt-bindings: Add schemas for simple-framebuffer
of: address: Add support for the parent DMA bus
of: address: Retrieve a parent through a callback in __of_translate_address
dt-bindings: bus: Add binding for the Allwinner MBUS controller
dt-bindings: interconnect: Add a dma interconnect name
of: use correct function prototype for of_overlay_fdt_apply()
of: reserved_mem: fix reserve memory leak
of: property: Document that of_graph_get_endpoint_by_regs needs of_node_put
...
trust the CPU's RNG on NUMA systems; other miscellaneous cleanups and
fixes.
-----BEGIN PGP SIGNATURE-----
iQEzBAABCAAdFiEEK2m5VNv+CHkogTfJ8vlZVpUNgaMFAlzSEyoACgkQ8vlZVpUN
gaPJKAf/cBOEU9Zn0PzdCiybl6IT88A/EcL2FPPFbMrRI/aUDZ6jBURsa2Ds0+Rb
XiMjElnxMGSv03P+MTo0SPTVwYLGPpvNgplL25I4HMfKUPbpAdxk5UZS9pUllv2T
3ftQfGgdDalewlT8BH0K5EY9E8Whe9ODrLgGq6jXgXHm2sssDzPF+pB2ySuDRvsA
W/6rF+PW4n/2n3An6h9jc/0cShurarpHjvWzuFWY3Mevgrl53r8SppIt085/5K6A
tsSdXIqIBvhCp9OvXBHzEDCEPpdVBlL81XauIu6uMSlJ/oofOqjJs2Ib1k04Xx9z
dp4/7REfm/HFMyT9MNAYPmhmXruiiQ==
=56QI
-----END PGP SIGNATURE-----
Merge tag 'random_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/random
Pull randomness updates from Ted Ts'o:
- initialize the random driver earler
- fix CRNG initialization when we trust the CPU's RNG on NUMA systems
- other miscellaneous cleanups and fixes.
* tag 'random_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/random:
random: add a spinlock_t to struct batched_entropy
random: document get_random_int() family
random: fix CRNG initialization when random.trust_cpu=1
random: move rand_initialize() earlier
random: only read from /dev/random after its pool has received 128 bits
drivers/char/random.c: make primary_crng static
drivers/char/random.c: remove unused stuct poolinfo::poolbits
drivers/char/random.c: constify poolinfo_table
miscellaneous cleanups.
-----BEGIN PGP SIGNATURE-----
iQEzBAABCAAdFiEEK2m5VNv+CHkogTfJ8vlZVpUNgaMFAlzSEfQACgkQ8vlZVpUN
gaNKrQf+O4JCCc8jqhpvUcNr8+DJNhWYpvRo7yDXoWbAyA6eZHV2fTRX5Vw6T8bW
iQAj9ofkRnakOq6JvnaUyW8eAuRcqellF7HnwFwTxGOpZ1x3UPAV/roKutAhe8sT
9dA0VxjugBAISbL2AMQKRPYNuzV07D9As6wZRlPuliFVLLnuPG5SseHRhdn3tm1n
Jwyipu8P6BjomFtfHT25amISaWRx/uGpjTa1fmjwUxIC8EI6V9K6hKNCAUPsk/3g
m8zEBpBKSmPK66sFPGxddPNGYAyyFluUboQxB7DuSCF7J3cULO8TxRZbsW/5jaio
ZR8utWezuXnrI80vG/VtCMhqG3398Q==
=0Bak
-----END PGP SIGNATURE-----
Merge tag 'fscrypt_for_linus' of git://git.kernel.org/pub/scm/fs/fscrypt/fscrypt
Pull fscrypt updates from Ted Ts'o:
"Clean up fscrypt's dcache revalidation support, and other
miscellaneous cleanups"
* tag 'fscrypt_for_linus' of git://git.kernel.org/pub/scm/fs/fscrypt/fscrypt:
fscrypt: cache decrypted symlink target in ->i_link
vfs: use READ_ONCE() to access ->i_link
fscrypt: fix race where ->lookup() marks plaintext dentry as ciphertext
fscrypt: only set dentry_operations on ciphertext dentries
fs, fscrypt: clear DCACHE_ENCRYPTED_NAME when unaliasing directory
fscrypt: fix race allowing rename() and link() of ciphertext dentries
fscrypt: clean up and improve dentry revalidation
fscrypt: use READ_ONCE() to access ->i_crypt_info
fscrypt: remove WARN_ON_ONCE() when decryption fails
fscrypt: drop inode argument from fscrypt_get_ctx()
Two of the common symlink formats use reparse points
(unlike mfsymlinks and also unlike the SMB1 posix
extensions). This is the first part of the fixes
to allow these reparse points (NFS style and Windows
symlinks) to be resolved properly as symlinks by the
client.
Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Change strcat to strncpy in the "None" case to fix a buffer overflow
when cinode->oplock is reset to 0 by another thread accessing the same
cinode. It is never valid to append "None" to any other message.
Consolidate multiple writes to cinode->oplock to reduce raciness.
Signed-off-by: Christoph Probst <kernel@probst.it>
Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
CC: Stable <stable@vger.kernel.org>
New negotiate context (3) allows the server and client to
negotiate which compression algorithms to use. Add support
for this and save it off in the server structure.
Also now displayed in /proc/fs/cifs/DebugData (see below example
to Windows 10) where compression algoirthm "LZ77" was negotiated:
Servers:
Number of credits: 326 Dialect 0x311 COMPRESS_LZ77 signed
1) Name: 192.168.92.17 Uses: 1 Capability: 0x300067 Session Status: 1 TCP status: 1 Instance: 1
See MS-XCA and MS-SMB2 2.2.3.1 for more details.
Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>
The flags were named confusingly.
CIFS_ASYNC_OP now just means that we will not block waiting for credits
to become available so we thus rename this to be CIFS_NON_BLOCKING.
Change CIFS_NO_RESP to CIFS_NO_RSP_BUF to clarify that we will actually get a
response from the server but we will not get/do not want a response buffer.
Delete CIFSSMBNotify. This is an SMB1 function that is not used.
Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>
For SMB1 oplock breaks we would grab one credit while sending the PDU
but we would never relese the credit back since we will never receive a
response to this from the server. Eventuallt this would lead to a hang
once all credits are leaked.
Fix this by defining a new flag CIFS_NO_SRV_RSP which indicates that there
is no server response to this command and thus we need to add any credits back
immediately after sending the PDU.
CC: Stable <stable@vger.kernel.org> #v5.0+
Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Add the SMB3 protocol flag definitions and structs for
change notify. Future patches will add the hooks to
allow it to be invoked from the client.
See MS-FSCC 2.6 and MS-SMB2 2.2.35
Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>
For zero-range that also extend the file we were sending this as a
compound of two different operations; a fsctl to set-zero-data for the range
and then an additional set-info to extend the file size.
This does not work for Azure since it does not support this fsctl which leads
to fallocate(FALLOC_FL_ZERO_RANGE) failing but still changing the file size.
To fix this we un-compound this and send these two operations as separate
commands, firsat one command to set-zero-data for the range and it this
was successful we proceed to send a set-info to update the file size.
This fixes xfstest generic/469 for Azure servers.
Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Remove the conditional to fail zero-range if the file is not flagged as sparse.
You can still zero out a range in SMB2 even for non-sparse files.
Tested with stock windows16 server.
Fixes 5 xfstests (033, 149, 155, 180, 349)
Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Useful for improved copy performance as well as for
applications which query allocated ranges of sparse
files.
Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
See the latest MS-SMB2 protocol specification updates.
These will be needed for implementing compression support
on the wire for example.
Signed-off-by: Steve French <stfrench@microsoft.com>
SMB2 Ioctl responses from servers may respond with both the request blob from
the client followed by the actual reply blob for ioctls that are bi-directional.
In that case we can not assume that the reply blob comes immediately after the
ioctl response structure.
This fixes FSCTLs such as SMB2:FSCTL_QUERY_ALLOCATED_RANGES
Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
To support compounding, __smb_send_rqst() now sends an array of requests to
the transport layer.
Change smbd_send() to take an array of requests, and send them in as few
packets as possible.
Signed-off-by: Long Li <longli@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
CC: Stable <stable@vger.kernel.org>
