| Age | Commit message (Collapse) | Author |
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Let's make the bridge use autosuspend with a 500ms delay. This is in
preparation for promoting DP AUX transfers to their own sub-driver so
that we're not constantly powering up and down the device as we
transfer all the chunks.
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20210423095743.v5.11.I4c0b4a87e4dc19e5023b4d0a21bbfa6d9c09ebd8@changeid
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When I added support for the hpd-gpio to simple-panel in commit
48834e6084f1 ("drm/panel-simple: Support hpd-gpios for delaying
prepare()"), I added a special case to handle a circular dependency I
was running into on the ti-sn65dsi86 bridge chip. On my board the
hpd-gpio is actually provided by the bridge chip. That was causing
some circular dependency problems that I had to work around by getting
the hpd-gpio late.
I've now reorganized the ti-sn65dsi86 bridge chip driver to be a
collection of sub-drivers. Now the GPIO part can probe separately and
that breaks the chain. Let's get rid of the old code to clean things
up.
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20210423095743.v5.10.I40eeedc23459d1e3fc96fa6cdad775d88c6e706c@changeid
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Let's use the newly minted aux bus to break up the driver into sub
drivers. We're not doing a full breakup here: all the code is still in
the same file and remains largely untouched. The big goal here of
using sub-drivers is to allow part of our code to finish probing even
if some other code needs to defer. This can solve some chicken-and-egg
problems. Specifically:
- In commit 48834e6084f1 ("drm/panel-simple: Support hpd-gpios for
delaying prepare()") we had to add a bit of a hack to simpel-panel
to support HPD showing up late. We can get rid of that hack now
since the GPIO part of our driver can finish probing early.
- We have a desire to expose our DDC bus to simple-panel (and perhaps
to a backlight driver?). That will end up with the same
chicken-and-egg problem. A future patch to move this to a sub-driver
will fix it.
- If/when we support the PWM functionality present in the bridge chip
for a backlight we'll end up with another chicken-and-egg
problem. If we allow the PWM to be a sub-driver too then it solves
this problem.
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20210423095743.v5.9.I3e68fa38c4ccbdbdf145cad2b01e83a1e5eac302@changeid
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This is just code motion of the probe routine to move all the things
that are for the "whole chip" (instead of the GPIO parts or the
MIPI-to-eDP parts) together at the start of probe. This is in
preparation for breaking the driver into sub-drivers.
Since we're using devm for all of the "whole chip" stuff this is
actually quite easy now.
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20210423095743.v5.8.Ide8ba40feb2e43bc98a11edbb08d696d62dcd83e@changeid
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Let's:
- Set the drvdata as soon as it's allocated. This just sets up a
pointer so there's no downside here.
- Remove the useless call to i2c_set_clientdata() which is literally
the same thing as dev_set_drvdata().
No functional changes intended.
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20210423095743.v5.7.If5d4d4e22e97bebcd493b76765c1759527705620@changeid
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Tiny cleanup for probe so we don't keep having to specify
"&client->dev" or "pdata->dev". No functional changes intended.
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20210423095743.v5.6.I83925d8ca228bdc5f55b17854c90754efc6a470e@changeid
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Let's cleanup the debugfs code to:
- Check for errors.
- Use devm to manage freeing, which also means we don't need to store
a pointer in our structure.
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20210423095743.v5.5.I5fe072753290c6a77eda736ebd5778e17b7cb0fb@changeid
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There's no devm_runtime_enable(), but it's easy to use
devm_add_action_or_reset() and means we don't need to worry about the
disable in our remove() routine or in error paths.
No functional changes intended by this change.
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20210423095743.v5.4.I1e627eb5f316c0cf6595b120e6e262f5bf890300@changeid
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Like the previous patch ("drm/bridge: ti-sn65dsi86: Rename the main
driver data structure") this is just a no-op rename in preparation for
splitting the driver up a bit.
Here I've attempted to rename functions / structures making sure that
anything applicable to the whole chip (instead of just the MIPI to eDP
bridge part) included "sn65dsi86" somewhere in the name instead of
just "ti_sn_bridge".
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20210423095743.v5.3.I4b28c737933a44548662df42ccd37db89ec739c1@changeid
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In preparation for splitting this driver into sub-drivers, let's
rename the main data structure so it's clear that it's holding data
for the whole device and not just the MIPI-eDP bridge part.
This is a no-op change.
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20210423095743.v5.2.Ib03e88304a9ea1c503f1b9567be5cbf8b7c5761c@changeid
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The "resets" property is not present on R-Car Gen1 SoCs.
Supporting it would require migrating from renesas,cpg-clocks to
renesas,cpg-mssr.
Fixes: 905fc6b1bfb4a631 ("dt-bindings: rcar-vin: Convert bindings to json-schema")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Link: https://lore.kernel.org/r/217c8197efaee7d803b22d433abb0ea8e33b84c6.1619700314.git.geert+renesas@glider.be
Signed-off-by: Rob Herring <robh@kernel.org>
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scripts/checkpatch.pl -f drivers/pci/controller/pcie-rcar-host.c:
WARNING: DT compatible string "renesas,pcie-r8a7779" appears un-documented -- check ./Documentation/devicetree/bindings/
#853: FILE: drivers/pci/controller/pcie-rcar-host.c:853:
+ { .compatible = "renesas,pcie-r8a7779",
Re-add the compatible value for R-Car H1, which was lost during the
json-schema conversion. Make the "resets" property optional on R-Car
H1, as it is not present yet on R-Car Gen1 SoCs.
Fixes: 0d69ce3c2c63d4db ("dt-bindings: PCI: rcar-pci-host: Convert bindings to json-schema")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/fb0bb969cd0e5872ab5eac70e070242c0d8a5b81.1619700202.git.geert+renesas@glider.be
Signed-off-by: Rob Herring <robh@kernel.org>
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Pull arch/csky updates from Guo Ren:
"Just cleanups"
* tag 'csky-for-linus-5.13-rc1' of git://github.com/c-sky/csky-linux:
csky: uaccess.h: Coding convention with asm generic
csky: fix syscache.c fallthrough warning
csky: Fixup typos
csky: Remove duplicate include in arch/csky/kernel/entry.S
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git://git.kernel.org/pub/scm/linux/kernel/git/pavel/linux-leds
Pull LED updates from Pavel Machek:
"Nothing too exciting here, just some fixes"
* tag 'leds-5.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/pavel/linux-leds:
leds: pca9532: Assign gpio base dynamically
leds: trigger: pattern: Switch to using the new API kobj_to_dev()
leds: LEDS_BLINK_LGM should depend on X86
leds: lgm: Fix spelling mistake "prepate" -> "prepare"
MAINTAINERS: Remove Dan Murphy's bouncing email
leds-lm3642: convert comma to semicolon
leds: rt4505: Add support for Richtek RT4505 flash LED controller
leds: rt4505: Add DT binding document for Richtek RT4505
leds: Kconfig: LEDS_CLASS is usually selected.
leds: lgm: Improve Kconfig help
leds: lgm: fix gpiolib dependency
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git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux
Pull RTC updates from Alexandre Belloni:
"Mostly small fixes and two drivers gaining alarm support. Summary:
Subsystem:
- UIE emulation has been reworked to avoid calling driver callbacks
when it is known it will not work
Drivers:
- ab-eoz9: add alarm support
- pcf8523: add alarm support"
* tag 'rtc-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (27 commits)
rtc: sysfs: check features instead of ops
rtc: omap: use rtc_write to access OMAP_RTC_OSC_REG
rtc: s5m: Remove reference to parent's device pdata
rtc: ds1307: Fix wday settings for rx8130
rtc: pcf8523: report oscillator failures
rtc: pcf8523: add alarm support
rtc: pcf8523: remove useless define
rtc: rtc_update_irq_enable: rework UIE emulation
rtc: ds1307: remove flags
rtc: ds1307: replace HAS_ALARM by RTC_FEATURE_ALARM
rtc: imx-sc: remove .read_alarm
rtc: ds1511: remove unused function
rtc: fsl-ftm-alarm: add MODULE_TABLE()
rtc: rtc-spear: replace spin_lock_irqsave by spin_lock in hard IRQ
dt-bindings: rtc: qcom-pm8xxx-rtc: Add qcom pm8xxx rtc bindings
rtc: pm8xxx: Add RTC support for PMIC PMK8350
rtc: ab-eoz9: make use of RTC_FEATURE_ALARM
rtc: ab-eoz9: add alarm support
rtc: ab-eoz9: set regmap max_register
rtc: pcf85063: fallback to parent of_node
...
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Variable ret is set to zero but this value is never read as it is
overwritten with a new value later on, hence it is a redundant
assignment and can be removed.
Cleans up the following clang-analyzer warning:
drivers/of/overlay.c:1197:2: warning: Value stored to 'ret' is never
read [clang-analyzer-deadcode.DeadStores].
drivers/of/overlay.c:1026:2: warning: Value stored to 'ret' is never
read [clang-analyzer-deadcode.DeadStores].
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Link: https://lore.kernel.org/r/1619347258-55002-1-git-send-email-jiapeng.chong@linux.alibaba.com
Signed-off-by: Rob Herring <robh@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing updates from Steven Rostedt:
"New feature:
- A new "func-no-repeats" option in tracefs/options directory.
When set the function tracer will detect if the current function
being traced is the same as the previous one, and instead of
recording it, it will keep track of the number of times that the
function is repeated in a row. And when another function is
recorded, it will write a new event that shows the function that
repeated, the number of times it repeated and the time stamp of
when the last repeated function occurred.
Enhancements:
- In order to implement the above "func-no-repeats" option, the ring
buffer timestamp can now give the accurate timestamp of the event
as it is being recorded, instead of having to record an absolute
timestamp for all events. This helps the histogram code which no
longer needs to waste ring buffer space.
- New validation logic to make sure all trace events that access
dereferenced pointers do so in a safe way, and will warn otherwise.
Fixes:
- No longer limit the PIDs of tasks that are recorded for
"saved_cmdlines" to PID_MAX_DEFAULT (32768), as systemd now allows
for a much larger range. This caused the mapping of PIDs to the
task names to be dropped for all tasks with a PID greater than
32768.
- Change trace_clock_global() to never block. This caused a deadlock.
Clean ups:
- Typos, prototype fixes, and removing of duplicate or unused code.
- Better management of ftrace_page allocations"
* tag 'trace-v5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (32 commits)
tracing: Restructure trace_clock_global() to never block
tracing: Map all PIDs to command lines
ftrace: Reuse the output of the function tracer for func_repeats
tracing: Add "func_no_repeats" option for function tracing
tracing: Unify the logic for function tracing options
tracing: Add method for recording "func_repeats" events
tracing: Add "last_func_repeats" to struct trace_array
tracing: Define new ftrace event "func_repeats"
tracing: Define static void trace_print_time()
ftrace: Simplify the calculation of page number for ftrace_page->records some more
ftrace: Store the order of pages allocated in ftrace_page
tracing: Remove unused argument from "ring_buffer_time_stamp()
tracing: Remove duplicate struct declaration in trace_events.h
tracing: Update create_system_filter() kernel-doc comment
tracing: A minor cleanup for create_system_filter()
kernel: trace: Mundane typo fixes in the file trace_events_filter.c
tracing: Fix various typos in comments
scripts/recordmcount.pl: Make vim and emacs indent the same
scripts/recordmcount.pl: Make indent spacing consistent
tracing: Add a verifier to check string pointers for trace events
...
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The Broadcom STB PCIe RC uses a reset control "rescal" for certain chips.
The "rescal" implements a "pulse reset" so using assert/deassert is wrong
for this device. Instead, we use reset/rearm. We need to use rearm so
that we can reset it after a suspend/resume cycle; w/o using "rearm", the
"rescal" device will only ever fire once.
Of course for suspend/resume to work we also need to put the reset/rearm
calls in the suspend and resume routines.
Fixes: 740d6c3708a9 ("PCI: brcmstb: Add control of rescal reset")
Link: https://lore.kernel.org/r/20210430152156.21162-4-jim2101024@gmail.com
Signed-off-by: Jim Quinlan <jim2101024@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
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This driver may use one of two resets controllers. Keep them in separate
variables to keep things simple. The reset controller "rescal" is shared
between the AHCI driver and the PCIe driver for the BrcmSTB 7216 chip. Use
devm_reset_control_get_optional_shared() to handle this sharing.
[bhelgaas: add Jens' ack from v5 posting]
Fixes: 272ecd60a636 ("ata: ahci_brcm: BCM7216 reset is self de-asserting")
Fixes: c345ec6a50e9 ("ata: ahci_brcm: Support BCM7216 reset controller name")
Link: https://lore.kernel.org/r/20210430152156.21162-3-jim2101024@gmail.com
Signed-off-by: Jim Quinlan <jim2101024@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Jens Axboe <axboe@kernel.dk>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull another simple_recursive_removal() update from Al Viro:
"I missed one case when simple_recursive_removal() was introduced"
* 'work.recursive_removal' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
qib_fs: switch to simple_recursive_removal()
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All other functions are defined for when CONFIG_RESET_CONTROLLER
is not set.
Fixes: 557acb3d2cd9 ("reset: make shared pulsed reset controls re-triggerable")
Link: https://lore.kernel.org/r/20210430152156.21162-2-jim2101024@gmail.com
Signed-off-by: Jim Quinlan <jim2101024@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: stable@vger.kernel.org # v5.11+
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull receive_fd update from Al Viro:
"Cleanup of receive_fd mess"
* 'work.file' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
fs: split receive_fd_replace from __receive_fd
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The field pdev in struct drm_device is unused. Remove it. The
value can be obtained by upcasting from the structure's dev field.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20210502104953.21768-8-tzimmermann@suse.de
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Replace all references to struct drm_device's pdev field with
an upcast from dev.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20210502104953.21768-7-tzimmermann@suse.de
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Replace all references to struct drm_device's pdev field with
an upcast from dev.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20210502104953.21768-6-tzimmermann@suse.de
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Replace all references to struct drm_device's pdev field with
an upcast from dev.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20210502104953.21768-5-tzimmermann@suse.de
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Replace all references to struct drm_device's pdev field with
an upcast from dev.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20210502104953.21768-4-tzimmermann@suse.de
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Replace all references to struct drm_device's pdev field with
an upcast from dev.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20210502104953.21768-3-tzimmermann@suse.de
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Replace all references to struct drm_device's pdev field with
an upcast from dev.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20210502104953.21768-2-tzimmermann@suse.de
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bio size can grow up to 4GB when muli-page bvec is enabled.
but sometimes it would lead to inefficient behaviors.
in case of large chunk direct I/O, - 32MB chunk read in user space -
all pages for 32MB would be merged to a bio structure if the pages
physical addresses are contiguous. it makes some delay to submit
until merge complete. bio max size should be limited to a proper size.
When 32MB chunk read with direct I/O option is coming from userspace,
kernel behavior is below now in do_direct_IO() loop. it's timeline.
| bio merge for 32MB. total 8,192 pages are merged.
| total elapsed time is over 2ms.
|------------------ ... ----------------------->|
| 8,192 pages merged a bio.
| at this time, first bio submit is done.
| 1 bio is split to 32 read request and issue.
|--------------->
|--------------->
|--------------->
......
|--------------->
|--------------->|
total 19ms elapsed to complete 32MB read done from device. |
If bio max size is limited with 1MB, behavior is changed below.
| bio merge for 1MB. 256 pages are merged for each bio.
| total 32 bio will be made.
| total elapsed time is over 2ms. it's same.
| but, first bio submit timing is fast. about 100us.
|--->|--->|--->|---> ... -->|--->|--->|--->|--->|
| 256 pages merged a bio.
| at this time, first bio submit is done.
| and 1 read request is issued for 1 bio.
|--------------->
|--------------->
|--------------->
......
|--------------->
|--------------->|
total 17ms elapsed to complete 32MB read done from device. |
As a result, read request issue timing is faster if bio max size is limited.
Current kernel behavior with multipage bvec, super large bio can be created.
And it lead to delay first I/O request issue.
Signed-off-by: Changheun Lee <nanich.lee@samsung.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Link: https://lore.kernel.org/r/20210503095203.29076-1-nanich.lee@samsung.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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rtrs_clt_rdma_cq_direct returns an ninitialized value in cnt
if there is no session. This patch makes rtrs_clt_rdma_cq_direct
returns a negative value for block layer not to try again.
Fixes: 2958a995edc94 ("block/rnbd-clt: Support polling mode for IO latency optimization")
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Gioh Kim <gi-oh.kim@ionos.com>
Signed-off-by: Jack Wang <jinpu.wang@ionos.com>
Link: https://lore.kernel.org/r/20210429092741.266533-1-gi-oh.kim@ionos.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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s/Subssystem/Subsystem/ ......two different places
s/reportet/reported/
s/managemnet/management/
Signed-off-by: Bhaskar Chowdhury <unixbhaskar@gmail.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Stefan Haberland <sth@linux.ibm.com>
Link: https://lore.kernel.org/r/20210428153521.2050899-2-sth@linux.ibm.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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The IO performance test with fio after removing the likely and
unlikely macros in all if-statement shows no performance drop.
They do not help for the performance of rnbd.
The fio test did random read on 32 rnbd devices and 64 processes.
Test environment:
- AMD Opteron(tm) Processor 6386 SE
- 125G memory
- kernel version: 5.4.86
- gcc version: gcc (Debian 8.3.0-6) 8.3.0
- Infiniband controller: InfiniBand: Mellanox Technologies MT26428
[ConnectX VPI PCIe 2.0 5GT/s - IB QDR / 10GigE] (rev b0)
before
read: IOPS=549k, BW=2146MiB/s
read: IOPS=544k, BW=2125MiB/s
read: IOPS=553k, BW=2158MiB/s
read: IOPS=535k, BW=2089MiB/s
read: IOPS=543k, BW=2122MiB/s
read: IOPS=552k, BW=2154MiB/s
average: IOPS=546k, BW=2132MiB/s
after
read: IOPS=556k, BW=2172MiB/s
read: IOPS=561k, BW=2191MiB/s
read: IOPS=552k, BW=2156MiB/s
read: IOPS=551k, BW=2154MiB/s
read: IOPS=562k, BW=2194MiB/s
-----------
average: IOPS=556k, BW=2173MiB/s
The IOPS and bandwidth got better slightly after removing
likely/unlikely. (IOPS= +1.8% BW= +1.9%) But we cannot make sure
that removing the likely/unlikely help the performance because it
depends on various situations. We only make sure that removing the
likely/unlikely does not drop the performance.
Signed-off-by: Gioh Kim <gi-oh.kim@ionos.com>
Reviewed-by: Md Haris Iqbal <haris.iqbal@ionos.com>
Link: https://lore.kernel.org/r/20210428061359.206794-5-gi-oh.kim@ionos.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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In case none of the paths are in connected state, the function
rtrs_clt_query returns an error. In such a case, error out since the
values in the rtrs_attrs structure would be garbage.
Fixes: f7a7a5c228d45 ("block/rnbd: client: main functionality")
Signed-off-by: Md Haris Iqbal <haris.iqbal@ionos.com>
Reviewed-by: Guoqing Jiang <guoqing.jiang@ionos.com>
Signed-off-by: Jack Wang <jinpu.wang@ionos.com>
Signed-off-by: Gioh Kim <gi-oh.kim@ionos.com>
Link: https://lore.kernel.org/r/20210428061359.206794-4-gi-oh.kim@ionos.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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This patch fixes some style issues detected by scripts/checkpatch.pl
* Resolve spacing and tab issues
* Remove extra braces in rnbd_get_iu
* Use num_possible_cpus() instead of NR_CPUS in alloc_sess
* Fix the comments styling in rnbd_queue_rq
Signed-off-by: Dima Stepanov <dmitrii.stepanov@ionos.com>
Signed-off-by: Gioh Kim <gi-oh.kim@ionos.com>
Signed-off-by: Md Haris Iqbal <haris.iqbal@ionos.com>
Signed-off-by: Jack Wang <jinpu.wang@ionos.com>
Link: https://lore.kernel.org/r/20210428061359.206794-3-gi-oh.kim@ionos.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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The member queue_depth in the structure rnbd_clt_session is read from the
rtrs client side using the function rtrs_clt_query, which in turn is read
from the rtrs_clt structure. It should really be of type size_t.
Fixes: 90426e89f54db ("block/rnbd: client: private header with client structs and functions")
Signed-off-by: Md Haris Iqbal <haris.iqbal@ionos.com>
Reviewed-by: Guoqing Jiang <guoqing.jiang@ionos.com>
Signed-off-by: Gioh Kim <gi-oh.kim@ionos.com>
Link: https://lore.kernel.org/r/20210428061359.206794-2-gi-oh.kim@ionos.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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When the tcp connection is not ready to send requests,
we keep retrying echo with an interval of zero.
This seems unnecessary, and this fix changes the interval
between echoes to what is specified as echo_interval.
Signed-off-by: Shyam Prasad N <sprasad@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
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One of our benchmarks running in (Google-internal) CI pushes data
through the ringbuf faster htan than userspace is able to consume
it. In this case it seems we're actually able to get >INT_MAX entries
in a single ring_buffer__consume() call. ASAN detected that cnt
overflows in this case.
Fix by using 64-bit counter internally and then capping the result to
INT_MAX before converting to the int return type. Do the same for
the ring_buffer__poll().
Fixes: bf99c936f947 (libbpf: Add BPF ring buffer support)
Signed-off-by: Brendan Jackman <jackmanb@google.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20210429130510.1621665-1-jackmanb@google.com
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We can detect server unresponsiveness only if echoes are enabled.
Echoes can be disabled under two scenarios:
1. The connection is low on credits, so we've disabled echoes/oplocks.
2. The connection has not seen any request till now (other than
negotiate/sess-setup), which is when we enable these two, based on
the credits available.
So this fix will check for dead connection, only when echo is enabled.
Signed-off-by: Shyam Prasad N <sprasad@microsoft.com>
CC: <stable@vger.kernel.org> # v5.8+
Signed-off-by: Steve French <stfrench@microsoft.com>
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The compatible strings "mediatek,*" appears two times, remove one of them.
Fixes: e69f5dc623f9 ("dt-bindings: serial: Convert 8250 to json-schema")
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Link: https://lore.kernel.org/r/20210422090857.583-1-thunder.leizhen@huawei.com
Signed-off-by: Rob Herring <robh@kernel.org>
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When mounted multiuser it is hard to dump keys for the other sessions
which makes it hard to debug using network traces (e.g. using wireshark).
Suggested-by: Shyam Prasad N <sprasad@microsoft.com>
Reviewed-by: Shyam Prasad N <sprasad@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
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Previously we were only able to dump CCM or GCM-128 keys (see "smbinfo keys" e.g.)
to allow network debugging (e.g. wireshark) of mounts to SMB3.1.1 encrypted
shares. But with the addition of GCM-256 support, we have to be able to dump
32 byte instead of 16 byte keys which requires adding an additional ioctl
for that.
Reviewed-by: Shyam Prasad N <sprasad@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
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Various filesystem support the shutdown ioctl which is used by various
xfstests. The shutdown ioctl sets a flag on the superblock which
prevents open, unlink, symlink, hardlink, rmdir, create etc.
on the file system until unmount and remounted. The two flags supported
in this patch are:
FSOP_GOING_FLAGS_LOGFLUSH and FSOP_GOING_FLAGS_NOLOGFLUSH
which require very little other than blocking new operations (since
we do not cache writes to metadata on the client with cifs.ko).
FSOP_GOING_FLAGS_DEFAULT is not supported yet, but could be added in
the future but would need to call syncfs or equivalent to write out
pending data on the mount.
With this patch various xfstests now work including tests 043 through
046 for example.
Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Aurelien Aptel <aaptel@suse.com>
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When file is closed, SMB2 close request is not sent to server
immediately and is deferred for acregmax defined interval. When file is
reopened by same process for read or write, the file handle
is reused if an oplock is held.
When client receives a oplock/lease break, file is closed immediately
if reference count is zero, else oplock is downgraded.
Signed-off-by: Rohith Surabattula <rohiths@microsoft.com>
Reviewed-by: Shyam Prasad N <sprasad@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
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Add the compiler-rt builtins like memcpy to the hexagon kernel.
Signed-off-by: Sid Manning <sidneym@codeaurora.org>
Add SYM_FUNC_START/END, ksyms exports
Signed-off-by: Brian Cain <bcain@codeaurora.org>
Tested-by: Nick Desaulniers <ndesaulniers@google.com>
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Remove CONFIG_DEBUG_INFO from comet configuration.
Signed-off-by: Sid Manning <sidneym@codeaurora.org>
Signed-off-by: Brian Cain <bcain@codeaurora.org>
Tested-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
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Cross-section jumps from .fixup section must be extended.
Signed-off-by: Sid Manning <sidneym@codeaurora.org>
Signed-off-by: Brian Cain <bcain@codeaurora.org>
Tested-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
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Fix type-o in ptrace.c.
Add missing include: asm/hexagon_vm.h
Remove superfluous cast.
Replace 'p3_0' with 'preds'.
Signed-off-by: Sid Manning <sidneym@codeaurora.org>
Add -mlong-calls to build flags.
Signed-off-by: Brian Cain <bcain@codeaurora.org>
Tested-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
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The fget can potentially return null, so the fput on the error return
path can cause a null pointer dereference. Fix this by checking for
a null source_kvm_file before doing a fput.
Addresses-Coverity: ("Dereference null return")
Fixes: 54526d1fd593 ("KVM: x86: Support KVM VMs sharing SEV context")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Message-Id: <20210430170303.131924-1-colin.king@canonical.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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The function name of kdoc of __handle_changed_spte() should be itself,
rather than handle_changed_spte(). Fix the typo.
Signed-off-by: Kai Huang <kai.huang@intel.com>
Message-Id: <20210503042446.154695-1-kai.huang@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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