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With the introduction of netif_set_xps_queue, XPS can be enabled
by the driver at initialization.
Update the documentation to reflect this, as otherwise users
may incorrectly believe that the feature is off by default.
Fixes: 537c00de1c9b ("net: Add functions netif_reset_xps_queue and netif_set_xps_queue")
Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Pull smack updates from Casey Schaufler:
"Two minor fixes and one performance enhancement to Smack. The
performance improvement is significant and the new code is more like
its counterpart in SELinux.
- Two kernel test robot suggested clean-ups.
- Teach Smack to use the IPv4 netlabel cache. This results in a
12-14% improvement on TCP benchmarks"
* tag 'Smack-for-5.10' of git://github.com/cschaufler/smack-next:
Smack: Remove unnecessary variable initialization
Smack: Fix build when NETWORK_SECMARK is not set
Smack: Use the netlabel cache
Smack: Set socket labels only once
Smack: Consolidate uses of secmark into a function
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Pull tomoyo fix from Tetsuo HandaL
"One patch to make it possible to execute usermode-driver's path"
* tag 'tomoyo-pr-20201012' of git://git.osdn.net/gitroot/tomoyo/tomoyo-test1:
tomoyo: Loosen pathname/domainname validation.
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git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux
Pull printk updates from Petr Mladek:
"The big new thing is the fully lockless ringbuffer implementation,
including the support for continuous lines. It will allow to store and
read messages in any situation wihtout the risk of deadlocks and
without the need of temporary per-CPU buffers.
The access is still serialized by logbuf_lock. It synchronizes few
more operations, for example, temporary buffer for formatting the
message, syslog and kmsg_dump operations. The lock removal is being
discussed and should be ready for the next release.
The continuous lines are handled exactly the same way as before to
avoid regressions in user space. It means that they are appended to
the last message when the caller is the same. Only the last message
can be extended.
The data ring includes plain text of the messages. Except for an
integer at the beginning of each message that points back to the
descriptor ring with other metadata.
The dictionary has to stay. journalctl uses it to filter the log. It
allows to show messages related to a given device. The dictionary
values are stored in the descriptor ring with the other metadata.
This is the first part of the printk rework as discussed at Plumbers
2019, see https://lore.kernel.org/r/87k1acz5rx.fsf@linutronix.de. The
next big step will be handling consoles by kthreads during the normal
system operation. It will require special handling of situations when
the kthreads could not get scheduled, for example, early boot,
suspend, panic.
Other changes:
- Add John Ogness as a reviewer for printk subsystem. He is author of
the rework and is familiar with the code and history.
- Fix locking in serial8250_do_startup() to prevent lockdep report.
- Few code cleanups"
* tag 'printk-for-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux: (27 commits)
printk: Use fallthrough pseudo-keyword
printk: reduce setup_text_buf size to LOG_LINE_MAX
printk: avoid and/or handle record truncation
printk: remove dict ring
printk: move dictionary keys to dev_printk_info
printk: move printk_info into separate array
printk: reimplement log_cont using record extension
printk: ringbuffer: add finalization/extension support
printk: ringbuffer: change representation of states
printk: ringbuffer: clear initial reserved fields
printk: ringbuffer: add BLK_DATALESS() macro
printk: ringbuffer: relocate get_data()
printk: ringbuffer: avoid memcpy() on state_var
printk: ringbuffer: fix setting state in desc_read()
kernel.h: Move oops_in_progress to printk.h
scripts/gdb: update for lockless printk ringbuffer
scripts/gdb: add utils.read_ulong()
docs: vmcoreinfo: add lockless printk ringbuffer vmcoreinfo
printk: reduce LOG_BUF_SHIFT range for H8300
printk: ringbuffer: support dataless records
...
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git://anongit.freedesktop.org/drm/drm-misc into drm-next
One fix for a bad revert in ingenic-drm, and one fix for panfrost to increase a timeout at power up.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20201013065709.lwjw3fthoxwsbqsl@gilmour.lan
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Fix the issue when 'i' is equal to array size then array index over
runs the array when checking for the watch dog value.
Fixes: 5069185fc18e ("power: supply: bq25980: Add support for the BQ259xx family")
Signed-off-by: Dan Murphy <dmurphy@ti.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 asm updates from Borislav Petkov:
"Two asm wrapper fixes:
- Use XORL instead of XORQ to avoid a REX prefix and save some bytes
in the .fixup section, by Uros Bizjak.
- Replace __force_order dummy variable with a memory clobber to fix
LLVM requiring a definition for former and to prevent memory
accesses from still being cached/reordered, by Arvind Sankar"
* tag 'x86_asm_for_v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/asm: Replace __force_order with a memory clobber
x86/uaccess: Use XORL %0,%0 in __get_user_asm()
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Pull block driver updates from Jens Axboe:
"Here are the driver updates for 5.10.
A few SCSI updates in here too, in coordination with Martin as they
depend on core block changes for the shared tag bitmap.
This contains:
- NVMe pull requests via Christoph:
- fix keep alive timer modification (Amit Engel)
- order the PCI ID list more sensibly (Andy Shevchenko)
- cleanup the open by controller helper (Chaitanya Kulkarni)
- use an xarray for the CSE log lookup (Chaitanya Kulkarni)
- support ZNS in nvmet passthrough mode (Chaitanya Kulkarni)
- fix nvme_ns_report_zones (Christoph Hellwig)
- add a sanity check to nvmet-fc (James Smart)
- fix interrupt allocation when too many polled queues are
specified (Jeffle Xu)
- small nvmet-tcp optimization (Mark Wunderlich)
- fix a controller refcount leak on init failure (Chaitanya
Kulkarni)
- misc cleanups (Chaitanya Kulkarni)
- major refactoring of the scanning code (Christoph Hellwig)
- MD updates via Song:
- Bug fixes in bitmap code, from Zhao Heming
- Fix a work queue check, from Guoqing Jiang
- Fix raid5 oops with reshape, from Song Liu
- Clean up unused code, from Jason Yan
- Discard improvements, from Xiao Ni
- raid5/6 page offset support, from Yufen Yu
- Shared tag bitmap for SCSI/hisi_sas/null_blk (John, Kashyap,
Hannes)
- null_blk open/active zone limit support (Niklas)
- Set of bcache updates (Coly, Dongsheng, Qinglang)"
* tag 'drivers-5.10-2020-10-12' of git://git.kernel.dk/linux-block: (78 commits)
md/raid5: fix oops during stripe resizing
md/bitmap: fix memory leak of temporary bitmap
md: fix the checking of wrong work queue
md/bitmap: md_bitmap_get_counter returns wrong blocks
md/bitmap: md_bitmap_read_sb uses wrong bitmap blocks
md/raid0: remove unused function is_io_in_chunk_boundary()
nvme-core: remove extra condition for vwc
nvme-core: remove extra variable
nvme: remove nvme_identify_ns_list
nvme: refactor nvme_validate_ns
nvme: move nvme_validate_ns
nvme: query namespace identifiers before adding the namespace
nvme: revalidate zone bitmaps in nvme_update_ns_info
nvme: remove nvme_update_formats
nvme: update the known admin effects
nvme: set the queue limits in nvme_update_ns_info
nvme: remove the 0 lba_shift check in nvme_update_ns_info
nvme: clean up the check for too large logic block sizes
nvme: freeze the queue over ->lba_shift updates
nvme: factor out a nvme_configure_metadata helper
...
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We'll use it to ask for extra config files to be loaded, profile like
stuff that will be used first to make 'perf trace' mimic 'strace' output
via a 'perf strace' command that just sets up 'perf trace' output.
At some point it'll be used for regression tests, where we'll run some
simple commands like:
perf strace ls > perf-strace.output
strace ls > strace.output
And then do some mutable syscall arg aware diff like tool to deal with
arguments for things like mmap, that change at each execution, to be
first ignored and then properly tracked when used accoss multiple
syscalls.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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The nfs4idmapper only needs access to the user namespace, and not the
entire cred struct. This replaces the struct cred* member with
struct user_namespace*. This is mostly hygiene, so we don't have to
hold onto the cred object, which has extraneous references to
things like user_struct. This also makes switching away
from init_user_ns more straightforward in the future.
Signed-off-by: Sargun Dhillon <sargun@sargun.me>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
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Pull libata updates from Jens Axboe:
"Nothing major in here, just fixes or improvements collected over the
last few months"
* tag 'libata-5.10-2020-10-12' of git://git.kernel.dk/linux-block:
ata: ahci: mvebu: Make SATA PHY optional for Armada 3720
MAINTAINERS: remove LIBATA PATA DRIVERS entry
pata_cmd64x: Use fallthrough pseudo-keyword
ahci: qoriq: enable acpi support in qoriq ahci driver
sata, highbank: simplify the return expression of ahci_highbank_suspend
ahci: Add Intel Rocket Lake PCH-H RAID PCI IDs
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Pull io_uring updates from Jens Axboe:
- Add blkcg accounting for io-wq offload (Dennis)
- A use-after-free fix for io-wq (Hillf)
- Cancelation fixes and improvements
- Use proper files_struct references for offload
- Cleanup of io_uring_get_socket() since that can now go into our own
header
- SQPOLL fixes and cleanups, and support for sharing the thread
- Improvement to how page accounting is done for registered buffers and
huge pages, accounting the real pinned state
- Series cleaning up the xarray code (Willy)
- Various cleanups, refactoring, and improvements (Pavel)
- Use raw spinlock for io-wq (Sebastian)
- Add support for ring restrictions (Stefano)
* tag 'io_uring-5.10-2020-10-12' of git://git.kernel.dk/linux-block: (62 commits)
io_uring: keep a pointer ref_node in file_data
io_uring: refactor *files_register()'s error paths
io_uring: clean file_data access in files_register
io_uring: don't delay io_init_req() error check
io_uring: clean leftovers after splitting issue
io_uring: remove timeout.list after hrtimer cancel
io_uring: use a separate struct for timeout_remove
io_uring: improve submit_state.ios_left accounting
io_uring: simplify io_file_get()
io_uring: kill extra check in fixed io_file_get()
io_uring: clean up ->files grabbing
io_uring: don't io_prep_async_work() linked reqs
io_uring: Convert advanced XArray uses to the normal API
io_uring: Fix XArray usage in io_uring_add_task_file
io_uring: Fix use of XArray in __io_uring_files_cancel
io_uring: fix break condition for __io_uring_register() waiting
io_uring: no need to call xa_destroy() on empty xarray
io_uring: batch account ->req_issue and task struct references
io_uring: kill callback_head argument for io_req_task_work_add()
io_uring: move req preps out of io_issue_sqe()
...
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Some distros don't come with python2 and only have python3 available.
This causes the "'import perf' in python" self test to fail.
This change adds python3 to the list of possible python versions
that are autodetected but maintains the priorities for
'python2' and 'python' detection. Python3 has the lowest priority.
Committer notes:
On a fedora system without python2 packages the 'perf test python'
continues to work:
# python2
bash: python2: command not found...
Similar command is: 'python'
# rpm -qa | grep python2
#
That "Similar command" gives the clue:
# rpm -qf /usr/bin/python
python-unversioned-command-3.8.5-5.fc32.noarch
# rpm -ql python-unversioned-command
/usr/bin/python
/usr/share/man/man1/python.1.gz
#
With it in place the 'python' binary is found and perf builds the python
binding using python3:
# perf test -v python
19: 'import perf' in python :
--- start ---
test child forked, pid 379988
python usage test: "echo "import sys ; sys.path.append('/tmp/build/perf/python'); import perf" | '/usr/bin/python' "
test child finished with 0
---- end ----
'import perf' in python: Ok
#
Looking at that path:
# ls -la /tmp/build/perf/python
total 1864
drwxrwxr-x. 2 acme acme 60 Oct 13 16:20 .
drwxrwxr-x. 18 acme acme 4420 Oct 13 16:28 ..
-rwxrwxr-x. 1 acme acme 1907216 Oct 13 16:28 perf.cpython-38-x86_64-linux-gnu.so
#
And:
# ldd ~/bin/perf | grep python
libpython3.8.so.1.0 => /lib64/libpython3.8.so.1.0 (0x00007f5471187000)
#
As soon as we remove it:
# rpm -e python-unversioned-command-3.8.5-5.fc32.noarch
# hash -r
# python
bash: python: command not found...
Install package 'python-unversioned-command' to provide command 'python'? [N/y] n
#
And rebuilding perf now doesn't find python in the system:
make: Entering directory '/home/acme/git/perf/tools/perf'
BUILD: Doing 'make -j24' parallel build
<SNIP>
Makefile.config:786: No python interpreter was found: disables Python support - please install python-devel/python-dev
<SNIP>
After this patch:
$ rpm -qi python-unversioned-command
package python-unversioned-command is not installed
$
$ python
bash: python: command not found...
Install package 'python-unversioned-command' to provide command 'python'? [N/y] ^C
$
$ m
make: Entering directory '/home/acme/git/perf/tools/perf'
BUILD: Doing 'make -j24' parallel build
<SNIP>
CC /tmp/build/perf/tests/attr.o
CC /tmp/build/perf/tests/python-use.o
DESCEND plugins
GEN /tmp/build/perf/python/perf.so
INSTALL trace_plugins
LD /tmp/build/perf/tests/perf-in.o
LD /tmp/build/perf/perf-in.o
LINK /tmp/build/perf/perf
<SNIP>
make: Leaving directory '/home/acme/git/perf/tools/perf'
19: 'import perf' in python : Ok
$ ldd ~/bin/perf | grep python
libpython3.8.so.1.0 => /lib64/libpython3.8.so.1.0 (0x00007f2c8c708000)
$ ls -la /tmp/build/perf/python
total 1864
drwxrwxr-x. 2 acme acme 60 Oct 13 16:20 .
drwxrwxr-x. 18 acme acme 4420 Oct 13 16:31 ..
-rwxrwxr-x. 1 acme acme 1907216 Oct 13 16:31 perf.cpython-38-x86_64-linux-gnu.so
$
Signed-off-by: James Clark <james.clark@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
LPU-Reference: 20201005080645.6588-1-james.clark@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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To help figure out where it is getting the binding.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Pull block updates from Jens Axboe:
- Series of merge handling cleanups (Baolin, Christoph)
- Series of blk-throttle fixes and cleanups (Baolin)
- Series cleaning up BDI, seperating the block device from the
backing_dev_info (Christoph)
- Removal of bdget() as a generic API (Christoph)
- Removal of blkdev_get() as a generic API (Christoph)
- Cleanup of is-partition checks (Christoph)
- Series reworking disk revalidation (Christoph)
- Series cleaning up bio flags (Christoph)
- bio crypt fixes (Eric)
- IO stats inflight tweak (Gabriel)
- blk-mq tags fixes (Hannes)
- Buffer invalidation fixes (Jan)
- Allow soft limits for zone append (Johannes)
- Shared tag set improvements (John, Kashyap)
- Allow IOPRIO_CLASS_RT for CAP_SYS_NICE (Khazhismel)
- DM no-wait support (Mike, Konstantin)
- Request allocation improvements (Ming)
- Allow md/dm/bcache to use IO stat helpers (Song)
- Series improving blk-iocost (Tejun)
- Various cleanups (Geert, Damien, Danny, Julia, Tetsuo, Tian, Wang,
Xianting, Yang, Yufen, yangerkun)
* tag 'block-5.10-2020-10-12' of git://git.kernel.dk/linux-block: (191 commits)
block: fix uapi blkzoned.h comments
blk-mq: move cancel of hctx->run_work to the front of blk_exit_queue
blk-mq: get rid of the dead flush handle code path
block: get rid of unnecessary local variable
block: fix comment and add lockdep assert
blk-mq: use helper function to test hw stopped
block: use helper function to test queue register
block: remove redundant mq check
block: invoke blk_mq_exit_sched no matter whether have .exit_sched
percpu_ref: don't refer to ref->data if it isn't allocated
block: ratelimit handle_bad_sector() message
blk-throttle: Re-use the throtl_set_slice_end()
blk-throttle: Open code __throtl_de/enqueue_tg()
blk-throttle: Move service tree validation out of the throtl_rb_first()
blk-throttle: Move the list operation after list validation
blk-throttle: Fix IO hang for a corner case
blk-throttle: Avoid tracking latency if low limit is invalid
blk-throttle: Avoid getting the current time if tg->last_finish_time is 0
blk-throttle: Remove a meaningless parameter for throtl_downgrade_state()
block: Remove redundant 'return' statement
...
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Currently BUILD_BUG() macro is expanded to smth like the following:
do {
extern void __compiletime_assert_0(void)
__attribute__((error("BUILD_BUG failed")));
if (!(!(1)))
__compiletime_assert_0();
} while (0);
If used in a function body this obviously would produce build errors
with -Wnested-externs and -Werror.
To enable BUILD_BUG() usage in tools/arch/x86/lib/insn.c which perf
includes in intel-pt-decoder, build perf without -Wnested-externs.
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Tested-by: Stephen Rothwell <sfr@canb.auug.org.au> # build tested
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lore.kernel.org/lkml/patch-1.thread-251403.git-2514037e9477.your-ad-here.call-01602244460-ext-7088@work.hours
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Borislav Petkov:
- Fix the #DE oops message string format which confused tools parsing
crash information (Thomas Gleixner)
- Remove an unused variable in the UV5 code which was triggering a
build warning with clang (Mike Travis)
* tag 'x86_urgent_for_v5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/platform/uv: Remove unused variable in UV5 NMI handler
x86/traps: Fix #DE Oops message regression
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booting-without-of.rst is an ancient document that first outlined
Flattened DeviceTree on PowerPC initially. The DT world has evolved a
lot in the 15 years since and booting-without-of.rst is pretty stale.
The name of the document itself is confusing if you don't understand the
evolution from real 'OpenFirmware'. Most of what booting-without-of.rst
contains is now in the DT specification (which evolved out of the
ePAPR). The few things that weren't documented in the DT specification
are now.
All that remains is the boot entry details, so let's move these to arch
specific documents. The exception is arm which already has the same
details documented.
Cc: Frank Rowand <frowand.list@gmail.com>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Rich Felker <dalias@libc.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: x86@kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: linux-mips@vger.kernel.org
Cc: linux-doc@vger.kernel.org
Cc: linux-sh@vger.kernel.org
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Borislav Petkov <bp@suse.de>
Acked-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc)
Signed-off-by: Rob Herring <robh@kernel.org>
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Remove an unused variable.
Signed-off-by: Mike Travis <mike.travis@hpe.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20201013154731.132565-1-mike.travis@hpe.com
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The conversion of #DE to the idtentry mechanism introduced a change in the
Ooops message which confuses tools which parse crash information in dmesg.
Remove the underscore from 'divide_error' to restore previous behaviour.
Fixes: 9d06c4027f21 ("x86/entry: Convert Divide Error to IDTENTRY")
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/CACT4Y+bTZFkuZd7+bPArowOv-7Die+WZpfOWnEO_Wgs3U59+oA@mail.gmail.com
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git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hwmon updates from Guenter Roeck:
"New driver and chip support:
- Moortec MR75203 PVT controller
- MPS Multi-phase mp2975 controller
- ADM1266
- Zen3 CPUs
- Intel MAX 10 BMC
Enhancements:
- Support for rated attributes in hwmon core
- MAX20730:
- Device monitoring via debugfs
- VOUT readin adjustment vie devicetree bindings
- LM75:
- Devicetree support
- Regulator support
- Improved accumulationm logic in amd_energy driver
- Added fan sensor to gsc-hwmon driver
- Support for simplified I2C probing
Various other minor fixes and improvements"
* tag 'hwmon-for-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (64 commits)
hwmon: (pmbus/max20730) adjust the vout reading given voltage divider
dt-bindings: hwmon: max20730: adding device tree doc for max20730
hwmon: Add hardware monitoring driver for Moortec MR75203 PVT controller
hwmon: Add DT bindings schema for PVT controller
dt-bindings: hwmon: Add the +vs supply to the lm75 bindings
dt-bindings: hwmon: Convert lm75 bindings to yaml
docs: hwmon: (ltc2945) update datasheet link
hwmon: (mlxreg-fan) Fix double "Mellanox"
hwmon: (pmbus/max20730) add device monitoring via debugfs
hwmon: (pmbus/max34440) Fix OC fault limits
hwmon: (bt1-pvt) Wait for the completion with timeout
hwmon: (bt1-pvt) Cache current update timeout
hwmon: (bt1-pvt) Test sensor power supply on probe
hwmon: (lm75) Add regulator support
hwmon: Add hwmon driver for Intel MAX 10 BMC
dt-bindings: Add MP2975 voltage regulator device
hwmon: (pmbus) Add support for MPS Multi-phase mp2975 controller
hwmon: (tmp513) fix spelling typo in comments
hwmon: (amd_energy) Update driver documentation
hwmon: (amd_energy) Improve the accumulation logic
...
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git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull GPIO updates from Linus Walleij:
"This time very little driver changes but lots of core changes.
We have some interesting cooperative work for ARM and Intel alike,
making the GPIO subsystem more and more suitable for industrial
systems and the like, in addition to the in-kernel users.
We touch driver core (device properties) and lib/* by adding one
simple string array free function, these are authored by Andy
Shevchenko who is a well known and recognized core helpers maintainers
so this should be fine.
We also see some Android GKI-related modularization in the MXC
drivers.
Core changes:
- The big core change is the updated (v2) userspace character device
API.
This corrects badly designed 64-bit alignment around the line
events. We also add the debounce request feature. This echoes the
often quotes passage from Frederick Brooks "The mythical man-month"
to always throw one away, which we have seen before in things such
as V4L2. So we put in a new one and deprecate and obsolete the old
one.
- All example tools in tools/gpio/* are migrated to the new API to
set a good example. The libgpiod userspace library has been
augmented to use this new API pretty much from day 1.
- Some misc API hardening by using strn* function calls has been
added as well.
- Use the simpler IDA interface for GPIO chip instance enumeration.
- Add device core function for counting string arrays in device
properties.
- Provide a generic library function kfree_strarray() that can be
used throughout the kernel.
Driver enhancements:
- The DesignWare dwapb-gpio driver has been enhanced and now uses the
IRQ handling in the gpiolib core.
- The mockup and aggregator drivers have seen some substantial code
clean-up and now use more of the core kernel inftrastructure.
- Misc cleanups using dev_err_probe().
- The MXC drivers (Freescale/NXP) can now be built modularized, which
makes modularized GKI Android kernels happy"
* tag 'gpio-v5.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (73 commits)
gpiolib: Update header block in gpiolib-cdev.h
gpiolib: cdev: switch from kstrdup() to kstrndup()
docs: gpio: add a new document to its index.rst
gpio: pca953x: Add support for the NXP PCAL9554B/C
tools: gpio: add debounce support to gpio-event-mon
tools: gpio: add multi-line monitoring to gpio-event-mon
tools: gpio: port gpio-event-mon to v2 uAPI
tools: gpio: port gpio-hammer to v2 uAPI
tools: gpio: rename nlines to num_lines
tools: gpio: port gpio-watch to v2 uAPI
tools: gpio: port lsgpio to v2 uAPI
gpio: uapi: document uAPI v1 as deprecated
gpiolib: cdev: support setting debounce
gpiolib: cdev: support GPIO_V2_LINE_SET_VALUES_IOCTL
gpiolib: cdev: support GPIO_V2_LINE_SET_CONFIG_IOCTL
gpiolib: cdev: support edge detection for uAPI v2
gpiolib: cdev: support GPIO_V2_GET_LINEINFO_IOCTL and GPIO_V2_GET_LINEINFO_WATCH_IOCTL
gpiolib: cdev: support GPIO_V2_GET_LINE_IOCTL and GPIO_V2_LINE_GET_VALUES_IOCTL
gpiolib: add build option for CDEV v1 ABI
gpiolib: make cdev a build option
...
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi updates from Mark Brown:
"There's quite a lot of changes for SPI in this release but none in the
core, they're all mostly small driver updates and additions. Some of
the more notable changes include:
- A huge set of cleanups, optimizations and improvements for the
DesignWare driver from Serge Semin finishing up the work started
last release.
- Conversion of the Zynq gqspi driver to spi-mem.
- Support for Baikal T1, Broadcom BCMSTB 7445, and Renesas R8A7742"
* tag 'spi-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (137 commits)
spi: cadence: Add SPI transfer delays
spi: dw: Add Baikal-T1 SPI Controller bindings
spi: dw: Add Baikal-T1 SPI Controller glue driver
spi: dw: Add poll-based SPI transfers support
spi: dw: Introduce max mem-ops SPI bus frequency setting
spi: dw: Add memory operations support
spi: dw: Add generic DW SSI status-check method
spi: dw: Move num-of retries parameter to the header file
spi: dw: Explicitly de-assert CS on SPI transfer completion
spi: dw: De-assert chip-select on reset
spi: dw: Discard chip enabling on DMA setup error
spi: dw: Unmask IRQs after enabling the chip
spi: dw: Perform IRQ setup in a dedicated function
spi: dw: Refactor IRQ-based SPI transfer procedure
spi: dw: Refactor data IO procedure
spi: dw: Add DW SPI controller config structure
spi: dw: Update Rx sample delay in the config function
spi: dw: Simplify the SPI bus speed config procedure
spi: dw: Update SPI bus speed in a config function
spi: dw: Detach SPI device specific CR0 config method
...
|
|
'perf trace ls' started crashing after commit d21cb73a9025 on
!HAVE_SYSCALL_TABLE_SUPPORT configs (armv7l here) like this:
0 strlen () at ../sysdeps/arm/armv6t2/strlen.S:126
1 0xb6800780 in __vfprintf_internal (s=0xbeff9908, s@entry=0xbeff9900, format=0xa27160 "]: %s()", ap=..., mode_flags=<optimized out>) at vfprintf-internal.c:1688
...
5 0x0056ecdc in fprintf (__fmt=0xa27160 "]: %s()", __stream=<optimized out>) at /usr/include/bits/stdio2.h:100
6 trace__sys_exit (trace=trace@entry=0xbeffc710, evsel=evsel@entry=0xd968d0, event=<optimized out>, sample=sample@entry=0xbeffc3e8) at builtin-trace.c:2475
7 0x00566d40 in trace__handle_event (sample=0xbeffc3e8, event=<optimized out>, trace=0xbeffc710) at builtin-trace.c:3122
...
15 main (argc=2, argv=0xbefff6e8) at perf.c:538
It is because memset in trace__read_syscall_info zeroes wrong memory:
1) when initializing for the first time, it does not reset the last id.
2) in other cases, it resets the last id of previous buffer.
ad 1) it causes the crash above as sc->name used in the fprintf above
contains garbage.
ad 2) it sets nonexistent from true back to false for id 11 here. Not
sure, what the consequences are.
So fix it by introducing a special case for the initial initialization
and do the right +1 in both cases.
Fixes: d21cb73a9025 ("perf trace: Grow the syscall table as needed when using libaudit")
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20201001093419.15761-1-jslaby@suse.cz
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Pull regulator updates from Mark Brown:
"This is a fairly small release for the regulator API, there's quite a
few new devices supported and some important improvements around
coupled regulators in the core but mostly just small fixes and
improvements otherwise.
Summary:
- Fixes and cleanups around the handling of coupled regulators.
- A special driver for some Raspberry Pi panels with some unusually
custom stuff around them.
- Support for Qualcomm PM660/PM660L, PM8950 and PM8953, Richtek
RT4801 and RTMV20, Rohm BD9576MUF and BD9573MUF"
* tag 'regulator-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (89 commits)
regulator: bd9576: Fix print
regulator: bd9576: fix regulator binfdings dt node names
dt-bindings: regulator: document pm8950 and pm8953 smd regulators
regulator: qcom_smd: add pm8953 regulators
regulator: Make constraint debug processing conditional on DEBUG
regulator: qcom: labibb: Constify static structs
regulator: dt-bindings: Document the PM660/PM660L PMICs entries
regulator: qcom_smd: Add PM660/PM660L regulator support
regulator: dt-bindings: Document the PM660/660L SPMI PMIC entries
regulator: qcom_spmi: Add PM660/PM660L regulators
regulator: qcom_spmi: Add support for new regulator types
regulator: core: Enlarge max OF property name length to 64 chars
regulator: tps65910: use regmap accessors
regulator: rtmv20: Add missing regcache cache only before marked as dirty
regulator: rtmv20: Update DT binding document and property name parsing
regulator: rtmv20: Add DT-binding document for Richtek RTMV20
regulator: rtmv20: Adds support for Richtek RTMV20 load switch regulator
regulator: resolve supply after creating regulator
regulator: print symbolic errors in kernel messages
regulator: print state at boot
...
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap
Pull regmap updates from Mark Brown:
"Quite a busy release for regmap, mostly support for new features
useful on fairly small subsets of devices. The user visible features
are:
- A new API for registering large numbers of regmap fields at once.
- Support for Intel AVMM buses connected via SPI.
- Support for 12/20 address/value layouts.
- Support for yet another scheme for acknowledging interrupts used on
some Qualcomm devices"
* tag 'regmap-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
regmap: irq: Add support to clear ack registers
regmap: add support to regmap_field_bulk_alloc/free apis
regmap: destroy mutex (if used) in regmap_exit()
regmap: debugfs: use semicolons rather than commas to separate statements
regmap: debugfs: Fix more error path regressions
regmap: Add support for 12/20 register formatting
regmap: Add can_sleep configuration option
regmap: soundwire: remove unused header mod_devicetable.h
regmap: Use flexible sleep
regmap: add Intel SPI Slave to AVMM Bus Bridge support
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git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media updates from Mauro Carvalho Chehab:
- the usbvision driver was dropped from staging
- the Zoran driver were re-added at staging. It gained lots of
improvements, and was converted to use videobuf2 API
- a new virtual driver (vidtv) was added in order to allow testing the
digital TV framework and APIs
- the media uAPI documentation gained a glossary with commonly used
terms, helping to simplify some parts of the docs
- more cleanups at the atomisp driver
- Mediatek VPU gained support for MT8183
- added support for codecs with supports doing colorspace conversion
(CSC)
- support for CSC API was added at vivid and rksip1 drivers
- added a helper core support and uAPI for better supporting H.264
codecs
- added support for Renesas R8A774E1
- use the new SPDX GFDL-1.1-no-invariants-or-later license on media
uAPI docs, instead of a license text
- Venus driver has gained VP9 codec support
- lots of other cleanups and driver improvements
* tag 'media/v5.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (555 commits)
media: dvb-frontends/drxk_hard.c: fix uninitialized variable warning
media: tvp7002: fix uninitialized variable warning
media: s5k5baf: drop 'data' field in struct s5k5baf_fw
media: dt-bindings: media: venus: Add an optional power domain for perf voting
media: rcar-vin: rcar-dma: Fix setting VNIS_REG for RAW8 formats
media: staging: rkisp1: uapi: Do not use BIT() macro
media: v4l2-mem2mem: Fix spurious v4l2_m2m_buf_done
media: usbtv: Fix refcounting mixup
media: zoran.rst: place it at the right place this time
media: add Zoran cardlist
media: admin-guide: update cardlists
media: siano: rename a duplicated card string
media: zoran: move documentation file to the right place
media: atomisp: fixes build breakage for ISP2400 due to a cleanup
media: zoran: fix mixed case on vars
media: zoran: get rid of an unused var
media: zoran: use upper case for card types
media: zoran: fix sparse warnings
media: zoran: fix smatch warning
media: zoran: update TODO
...
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A race exists between closing a PCM and update of ELD data. In
hdmi_pcm_close(), hinfo->nid value is modified without taking
spec->pcm_lock. If this happens concurrently while processing an ELD
update in hdmi_pcm_setup_pin(), converter assignment may be done
incorrectly.
This bug was found by hitting a WARN_ON in snd_hda_spdif_ctls_assign()
in a HDMI receiver connection stress test:
[2739.684569] WARNING: CPU: 5 PID: 2090 at sound/pci/hda/patch_hdmi.c:1898 check_non_pcm_per_cvt+0x41/0x50 [snd_hda_codec_hdmi]
...
[2739.684707] Call Trace:
[2739.684720] update_eld+0x121/0x5a0 [snd_hda_codec_hdmi]
[2739.684736] hdmi_present_sense+0x21e/0x3b0 [snd_hda_codec_hdmi]
[2739.684750] check_presence_and_report+0x81/0xd0 [snd_hda_codec_hdmi]
[2739.684842] intel_audio_codec_enable+0x122/0x190 [i915]
Fixes: 42b2987079ec ("ALSA: hda - hdmi playback without monitor in dynamic pcm bind mode")
Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20201013152628.920764-1-kai.vehmanen@linux.intel.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
|
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Pull MMC updates from Ulf Hansson:
"MMC core:
- Export SDIO revision and info strings to userspace
- Add support for specifying mmc/mmcblk index via mmc aliases in DT
MMC host:
- Enable support for async probe for all mmc host drivers
- Enable compile testing of multiple host drivers
- dw_mmc: Enable the Synopsys DesignWare driver for RISCV and CSKY
- mtk-sd: Fixup support for CQHCI
- owl-mmc: Add support for the actions,s700-mmc variant
- renesas_sdhi: Fix regression (temporary) for re-insertion of SD cards
- renesas_sdhi: Add support for the r8a774e1 variant
- renesas_sdhi/tmio: Improvements for tunings
- renesas_sdhi/tmio: Rework support for reset of controller
- sdhci-acpi: Fix HS400 tuning for devices with invalid presets on AMDI0040
- sdhci_am654: Improve support for tunings
- sdhci_am654: Add support for input tap delays
- sdhci_am654: Add workaround for card detect debounce timer
- sdhci-am654: Add support for the TI's J7200 variants
- sdhci-esdhc-imx: Fix support for manual tuning
- sdhci-iproc: Enable support for eMMC DDR 3.3V for bcm2711
- sdhci-msm: Fix stability issues with HS400 for sc7180
- sdhci-of-sparx5: Add Sparx5 SoC eMMC driver
- sdhci-of-esdhc: Fixup reference clock source selection
- sdhci-pci: Add LTR support for some Intel BYT controllers
- sdhci-pci-gli: Add CQHCI Support for GL9763E"
* tag 'mmc-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: (91 commits)
mmc: sdhci_am654: Fix module autoload
mmc: renesas_sdhi: workaround a regression when reinserting SD cards
mmc: sdhci-pci-gli: Add CQHCI Support for GL9763E
mmc: sdhci-acpi: AMDI0040: Set SDHCI_QUIRK2_PRESET_VALUE_BROKEN
mmc: sdhci_am654: Enable tuning for SDR50
mmc: sdhci_am654: Add support for software tuning
mmc: sdhci_am654: Add support for input tap delay
mmc: sdhci_am654: Fix hard coded otap delay array size
dt-bindings: mmc: sdhci-am654: Add documentation for input tap delay
dt-bindings: mmc: sdhci-am654: Convert sdhci-am654 controller documentation to json schema
mmc: sdhci-of-esdhc: fix reference clock source selection
mmc: host: fix depends for MMC_MESON_GX w/ COMPILE_TEST
mmc: sdhci-s3c: hide forward declaration of of_device_id behind CONFIG_OF
mmc: sdhci: fix indentation mistakes
mmc: moxart: remove unneeded check for drvdata
mmc: renesas_sdhi: drop local flag for tuning
mmc: rtsx_usb_sdmmc: simplify the return expression of sd_change_phase()
mmc: core: document mmc_hw_reset()
mmc: mediatek: Drop pointer to mmc_host from msdc_host
dt-bindings: mmc: owl: add compatible string actions,s700-mmc
...
|
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This adds the conversion of the runtime tests of test_bitfield,
from `lib/test_bitfield.c` to KUnit tests.
Code Style Documentation: [0]
Signed-off-by: Vitor Massaru Iha <vitor@massaru.org>
Link: [0] https://lore.kernel.org/linux-kselftest/20200620054944.167330-1-davidgow@google.com/T/#u
Reviewed-by: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
|
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Since commit b027cc6fdf1b ("perf c2c: Fix 'perf c2c record -e list' to
show the default events used"), "perf c2c" tool can show the memory
events properly, it's no reason to still suggest user to use the
command "perf mem record -e list" for showing events.
This patch updates the usage for showing memory events with command
"perf c2c record -e list".
Signed-off-by: Leo Yan <leo.yan@linaro.org>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Acked-by: Ian Rogers <irogers@google.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Link: https://lore.kernel.org/r/20201011121022.22409-1-leo.yan@linaro.org
|
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git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs
Pull erofs updates from Gao Xiang:
"This cycle addresses a reported permission issue with overlay due to a
duplicated permission check for "trusted." xattrs. Also, a REQ_RAHEAD
flag is added now to all readahead requests in order to trace
readahead I/Os. The others are random cleanups.
All commits have been tested and have been in linux-next as well.
Summary:
- fix an issue which can cause overlay permission problem due to
duplicated permission check for "trusted." xattrs;
- add REQ_RAHEAD flag to readahead requests for blktrace;
- several random cleanup"
* tag 'erofs-for-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs:
erofs: remove unnecessary enum entries
erofs: add REQ_RAHEAD flag to readahead requests
erofs: fold in should_decompress_synchronously()
erofs: avoid unnecessary variable `err'
erofs: remove unneeded parameter
erofs: avoid duplicated permission check for "trusted." xattrs
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To pick fixes that missed v5.9.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
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git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs updates from David Sterba:
"Mostly core updates with a few user visible bits and fixes.
Hilights:
- fsync performance improvements
- less contention of log mutex (throughput +4%, latency -14%,
dbench with 32 clients)
- skip unnecessary commits for link and rename (throughput +6%,
latency -30%, rename latency -75%, dbench with 16 clients)
- make fast fsync wait only for writeback (throughput +10..40%,
runtime -1..-20%, dbench with 1 to 64 clients on various
file/block sizes)
- direct io is now implemented using the iomap infrastructure, that's
the main part, we still have a workaround that requires an iomap
API update, coming in 5.10
- new sysfs exports:
- information about the exclusive filesystem operation status
(balance, device add/remove/replace, ...)
- supported send stream version
Core:
- use ticket space reservations for data, fair policy using the same
infrastructure as metadata
- preparatory work to switch locking from our custom tree locks to
standard rwsem, now the locking context is propagated to all
callers, actual switch is expected to happen in the next dev cycle
- seed device structures are now using list API
- extent tracepoints print proper tree id
- unified range checks for extent buffer helpers
- send: avoid using temporary buffer for copying data
- remove unnecessary RCU protection from space infos
- remove unused readpage callback for metadata, enabling several
cleanups
- replace indirect function calls for end io hooks and remove
extent_io_ops completely
Fixes:
- more lockdep warning fixes
- fix qgroup reservation for delayed inode and an occasional
reservation leak for preallocated files
- fix device replace of a seed device
- fix metadata reservation for fallocate that leads to transaction
aborts
- reschedule if necessary when logging directory items or when
cloning lots of extents
- tree-checker: fix false alert caused by legacy btrfs root item
- send: fix rename/link conflicts for orphanized inodes
- properly initialize device stats for seed devices
- skip devices without magic signature when mounting
Other:
- error handling improvements, BUG_ONs replaced by proper handling,
fuzz fixes
- various function parameter cleanups
- various W=1 cleanups
- error/info messages improved
Mishaps:
- commit 62cf5391209a ("btrfs: move btrfs_rm_dev_replace_free_srcdev
outside of all locks") is a rebase leftover after the patch got
merged to 5.9-rc8 as a466c85edc6f ("btrfs: move
btrfs_rm_dev_replace_free_srcdev outside of all locks"), the
remaining part is trivial and the patch is in the middle of the
series so I'm keeping it there instead of rebasing"
* tag 'for-5.10-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: (161 commits)
btrfs: rename BTRFS_INODE_ORDERED_DATA_CLOSE flag
btrfs: annotate device name rcu_string with __rcu
btrfs: skip devices without magic signature when mounting
btrfs: cleanup cow block on error
btrfs: remove BTRFS_INODE_READDIO_NEED_LOCK
fs: remove no longer used dio_end_io()
btrfs: return error if we're unable to read device stats
btrfs: init device stats for seed devices
btrfs: remove struct extent_io_ops
btrfs: call submit_bio_hook directly for metadata pages
btrfs: stop calling submit_bio_hook for data inodes
btrfs: don't opencode is_data_inode in end_bio_extent_readpage
btrfs: call submit_bio_hook directly in submit_one_bio
btrfs: remove extent_io_ops::readpage_end_io_hook
btrfs: replace readpage_end_io_hook with direct calls
btrfs: send, recompute reference path after orphanization of a directory
btrfs: send, orphanize first all conflicting inodes when processing references
btrfs: tree-checker: fix false alert caused by legacy btrfs root item
btrfs: use unaligned helpers for stack and header set/get helpers
btrfs: free-space-cache: use unaligned helpers to access data
...
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm
Pull dlm updates from David Teigland:
"This set continues the ongoing rework of the low level communication
layer in the dlm.
The focus here is on improvements to connection handling, and
reworking the receiving of messages"
* tag 'dlm-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm:
fs: dlm: fix race in nodeid2con
fs: dlm: rework receive handling
fs: dlm: disallow buffer size below default
fs: dlm: handle range check as callback
fs: dlm: fix mark per nodeid setting
fs: dlm: remove lock dependency warning
fs: dlm: use free_con to free connection
fs: dlm: handle possible othercon writequeues
fs: dlm: move free writequeue into con free
fs: dlm: fix configfs memory leak
fs: dlm: fix dlm_local_addr memory leak
fs: dlm: make connection hash lockless
fs: dlm: synchronize dlm before shutdown
|
|
Pull fscrypt updates from Eric Biggers:
"This release, we rework the implementation of creating new encrypted
files in order to fix some deadlocks and prepare for adding fscrypt
support to CephFS, which Jeff Layton is working on.
We also export a symbol in preparation for the above-mentioned CephFS
support and also for ext4/f2fs encrypt+casefold support.
Finally, there are a few other small cleanups.
As usual, all these patches have been in linux-next with no reported
issues, and I've tested them with xfstests"
* tag 'fscrypt-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/fscrypt:
fscrypt: export fscrypt_d_revalidate()
fscrypt: rename DCACHE_ENCRYPTED_NAME to DCACHE_NOKEY_NAME
fscrypt: don't call no-key names "ciphertext names"
fscrypt: use sha256() instead of open coding
fscrypt: make fscrypt_set_test_dummy_encryption() take a 'const char *'
fscrypt: handle test_dummy_encryption in more logical way
fscrypt: move fscrypt_prepare_symlink() out-of-line
fscrypt: make "#define fscrypt_policy" user-only
fscrypt: stop pretending that key setup is nofs-safe
fscrypt: require that fscrypt_encrypt_symlink() already has key
fscrypt: remove fscrypt_inherit_context()
fscrypt: adjust logging for in-creation inodes
ubifs: use fscrypt_prepare_new_inode() and fscrypt_set_context()
f2fs: use fscrypt_prepare_new_inode() and fscrypt_set_context()
ext4: use fscrypt_prepare_new_inode() and fscrypt_set_context()
ext4: factor out ext4_xattr_credits_for_new_inode()
fscrypt: add fscrypt_prepare_new_inode() and fscrypt_set_context()
fscrypt: restrict IV_INO_LBLK_32 to ino_bits <= 32
fscrypt: drop unused inode argument from fscrypt_fname_alloc_buffer
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto updates from Herbert Xu:
"API:
- Allow DRBG testing through user-space af_alg
- Add tcrypt speed testing support for keyed hashes
- Add type-safe init/exit hooks for ahash
Algorithms:
- Mark arc4 as obsolete and pending for future removal
- Mark anubis, khazad, sead and tea as obsolete
- Improve boot-time xor benchmark
- Add OSCCA SM2 asymmetric cipher algorithm and use it for integrity
Drivers:
- Fixes and enhancement for XTS in caam
- Add support for XIP8001B hwrng in xiphera-trng
- Add RNG and hash support in sun8i-ce/sun8i-ss
- Allow imx-rngc to be used by kernel entropy pool
- Use crypto engine in omap-sham
- Add support for Ingenic X1830 with ingenic"
* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (205 commits)
X.509: Fix modular build of public_key_sm2
crypto: xor - Remove unused variable count in do_xor_speed
X.509: fix error return value on the failed path
crypto: bcm - Verify GCM/CCM key length in setkey
crypto: qat - drop input parameter from adf_enable_aer()
crypto: qat - fix function parameters descriptions
crypto: atmel-tdes - use semicolons rather than commas to separate statements
crypto: drivers - use semicolons rather than commas to separate statements
hwrng: mxc-rnga - use semicolons rather than commas to separate statements
hwrng: iproc-rng200 - use semicolons rather than commas to separate statements
hwrng: stm32 - use semicolons rather than commas to separate statements
crypto: xor - use ktime for template benchmarking
crypto: xor - defer load time benchmark to a later time
crypto: hisilicon/zip - fix the uninitalized 'curr_qm_qp_num'
crypto: hisilicon/zip - fix the return value when device is busy
crypto: hisilicon/zip - fix zero length input in GZIP decompress
crypto: hisilicon/zip - fix the uncleared debug registers
lib/mpi: Fix unused variable warnings
crypto: x86/poly1305 - Remove assignments with no effect
hwrng: npcm - modify readl to readb
...
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Use XFS_ILOCK_RT{BITMAP,SUM} to annotate grabbing the rt bitmap and
summary locks when we grow the realtime volume, just like we do most
everywhere else. This shuts up lockdep warnings about grabbing the
ILOCK class of locks recursively:
============================================
WARNING: possible recursive locking detected
5.9.0-rc4-djw #rc4 Tainted: G O
--------------------------------------------
xfs_growfs/4841 is trying to acquire lock:
ffff888035acc230 (&xfs_nondir_ilock_class){++++}-{3:3}, at: xfs_ilock+0xac/0x1a0 [xfs]
but task is already holding lock:
ffff888035acedb0 (&xfs_nondir_ilock_class){++++}-{3:3}, at: xfs_ilock+0xac/0x1a0 [xfs]
other info that might help us debug this:
Possible unsafe locking scenario:
CPU0
----
lock(&xfs_nondir_ilock_class);
lock(&xfs_nondir_ilock_class);
*** DEADLOCK ***
May be due to missing lock nesting notation
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Chandan Babu R <chandanrlinux@gmail.com>
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When we call growfs on the data device, we update the secondary
superblocks to reflect the updated filesystem geometry. We need to do
this for growfs on the realtime volume too, because a future xfs_repair
run could try to fix the filesystem using a backup superblock.
This was observed by the online superblock scrubbers while running
xfs/233. One can also trigger this by growing an rt volume, cycling the
mount, and creating new rt files.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Chandan Babu R <chandanrlinux@gmail.com>
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The realtime bitmap and summary files are regular files that are hidden
away from the directory tree. Since they're regular files, inode
inactivation will try to purge what it thinks are speculative
preallocations beyond the incore size of the file. Unfortunately,
xfs_growfs_rt forgets to update the incore size when it resizes the
inodes, with the result that inactivating the rt inodes at unmount time
will cause their contents to be truncated.
Fix this by updating the incore size when we change the ondisk size as
part of updating the superblock. Note that we don't do this when we're
allocating blocks to the rt inodes because we actually want those blocks
to get purged if the growfs fails.
This fixes corruption complaints from the online rtsummary checker when
running xfs/233. Since that test requires rmap, one can also trigger
this by growing an rt volume, cycling the mount, and creating rt files.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Chandan Babu R <chandanrlinux@gmail.com>
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There are internal library functions, which are not declared as a static.
They are used inside the library from different files. Hide them from
the library users, as they are not part of the API.
These functions are made hidden and are renamed without the prefix "tep_":
tep_free_plugin_paths
tep_peek_char
tep_buffer_init
tep_get_input_buf_ptr
tep_get_input_buf
tep_read_token
tep_free_token
tep_free_event
tep_free_format_field
__tep_parse_format
Link: https://lore.kernel.org/linux-trace-devel/e4afdd82deb5e023d53231bb13e08dca78085fb0.camel@decadent.org.uk/
Reported-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Tzvetomir Stoyanov (VMware) <tz.stoyanov@gmail.com>
Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Cc: linux-trace-devel@vger.kernel.org
Link: http://lore.kernel.org/lkml/20200930110733.280534-1-tz.stoyanov@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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The 'perf sched latency' tool is really useful at showing worst-case
latencies that task encountered since wakeup. However it shows only the
end of the latency. Often times the start of a latency is interesting as
it can show what else was going on at the time to cause the latency. I
certainly myself spending a lot of time backtracking to the start of the
latency in "perf sched script" which wastes a lot of time.
This patch therefore adds a new column "Max delay start". Considering
this, also rename "Maximum delay at" to "Max delay end" as its easier to
understand.
Example of the new output:
----------------------------------------------------------------------------------------------------------------------------------
Task | Runtime ms | Switches | Avg delay ms | Max delay ms | Max delay start | Max delay end |
----------------------------------------------------------------------------------------------------------------------------------
MediaScannerSer:11936 | 651.296 ms | 67978 | avg: 0.113 ms | max: 77.250 ms | max start: 477.691360 s | max end: 477.768610 s
audio@2.0-servi:(3) | 0.000 ms | 3440 | avg: 0.034 ms | max: 72.267 ms | max start: 477.697051 s | max end: 477.769318 s
AudioOut_1D:8112 | 0.000 ms | 2588 | avg: 0.083 ms | max: 64.020 ms | max start: 477.710740 s | max end: 477.774760 s
Time-limited te:14973 | 7966.090 ms | 24807 | avg: 0.073 ms | max: 15.563 ms | max start: 477.162746 s | max end: 477.178309 s
surfaceflinger:8049 | 9.680 ms | 603 | avg: 0.063 ms | max: 13.275 ms | max start: 476.931791 s | max end: 476.945067 s
HeapTaskDaemon:(3) | 1588.830 ms | 7040 | avg: 0.065 ms | max: 6.880 ms | max start: 473.666043 s | max end: 473.672922 s
mount-passthrou:(3) | 1370.809 ms | 68904 | avg: 0.011 ms | max: 6.524 ms | max start: 478.090630 s | max end: 478.097154 s
ReferenceQueueD:(3) | 11.794 ms | 1725 | avg: 0.014 ms | max: 6.521 ms | max start: 476.119782 s | max end: 476.126303 s
writer:14077 | 18.410 ms | 1427 | avg: 0.036 ms | max: 6.131 ms | max start: 474.169675 s | max end: 474.175805 s
Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20200925235634.4089867-1-joel@joelfernandes.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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This replaces the incorrectly spelled word "localtion" with "location"
in some power8 PMU event descriptions.
Fixes: 2a81fa3bb5ed ("perf vendor events: Add power8 PMU events")
Signed-off-by: Sandipan Das <sandipan@linux.ibm.com>
Reviewed-by: Kajol Jain <kjain@linux.ibm.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
Cc: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Link: http://lore.kernel.org/lkml/20201012050205.328523-1-sandipan@linux.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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For comparison, it now runs the benchmark twice - one if regular -b and
another for --buildid-all.
$ perf bench internals inject-build-id
# Running 'internals/inject-build-id' benchmark:
Average build-id injection took: 21.002 msec (+- 0.172 msec)
Average time per event: 2.059 usec (+- 0.017 usec)
Average memory usage: 8169 KB (+- 0 KB)
Average build-id-all injection took: 19.543 msec (+- 0.124 msec)
Average time per event: 1.916 usec (+- 0.012 usec)
Average memory usage: 7348 KB (+- 0 KB)
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Acked-by: Ian Rogers <irogers@google.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Link: https://lore.kernel.org/r/20201012070214.2074921-7-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
Like 'perf record', we can even more speedup build-id processing by just
using all DSOs. Then we don't need to look at all the sample events
anymore. The following patch will update 'perf bench' to show the result
of the --buildid-all option too.
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Original-patch-by: Stephane Eranian <eranian@google.com>
Acked-by: Ian Rogers <irogers@google.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Link: https://lore.kernel.org/r/20201012070214.2074921-6-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
No need to load symbols in a DSO when injecting build-id. I guess the
reason was to check the DSO is a special file like anon files. Use some
helper functions in map.c to check them before reading build-id. Also
pass sample event's cpumode to a new build-id event.
It brought a speedup in the benchmark of 25 -> 21 msec on my laptop.
Also the memory usage (Max RSS) went down by ~200 KB.
# Running 'internals/inject-build-id' benchmark:
Average build-id injection took: 21.389 msec (+- 0.138 msec)
Average time per event: 2.097 usec (+- 0.014 usec)
Average memory usage: 8225 KB (+- 0 KB)
Committer notes:
Before:
$ perf stat -r5 perf bench internals inject-build-id > /dev/null
Performance counter stats for 'perf bench internals inject-build-id' (5 runs):
4,020.56 msec task-clock:u # 1.271 CPUs utilized ( +- 0.74% )
0 context-switches:u # 0.000 K/sec
0 cpu-migrations:u # 0.000 K/sec
123,354 page-faults:u # 0.031 M/sec ( +- 0.81% )
7,119,951,568 cycles:u # 1.771 GHz ( +- 1.74% ) (83.27%)
230,086,969 stalled-cycles-frontend:u # 3.23% frontend cycles idle ( +- 1.97% ) (83.41%)
1,168,298,765 stalled-cycles-backend:u # 16.41% backend cycles idle ( +- 1.13% ) (83.44%)
11,173,083,669 instructions:u # 1.57 insn per cycle
# 0.10 stalled cycles per insn ( +- 1.58% ) (83.31%)
2,413,908,936 branches:u # 600.392 M/sec ( +- 1.69% ) (83.26%)
46,576,289 branch-misses:u # 1.93% of all branches ( +- 2.20% ) (83.31%)
3.1638 +- 0.0309 seconds time elapsed ( +- 0.98% )
$
After:
$ perf stat -r5 perf bench internals inject-build-id > /dev/null
Performance counter stats for 'perf bench internals inject-build-id' (5 runs):
2,379.94 msec task-clock:u # 1.473 CPUs utilized ( +- 0.18% )
0 context-switches:u # 0.000 K/sec
0 cpu-migrations:u # 0.000 K/sec
62,584 page-faults:u # 0.026 M/sec ( +- 0.07% )
2,372,389,668 cycles:u # 0.997 GHz ( +- 0.29% ) (83.14%)
106,937,862 stalled-cycles-frontend:u # 4.51% frontend cycles idle ( +- 4.89% ) (83.20%)
581,697,915 stalled-cycles-backend:u # 24.52% backend cycles idle ( +- 0.71% ) (83.47%)
3,659,692,199 instructions:u # 1.54 insn per cycle
# 0.16 stalled cycles per insn ( +- 0.10% ) (83.63%)
791,372,961 branches:u # 332.518 M/sec ( +- 0.27% ) (83.39%)
10,648,083 branch-misses:u # 1.35% of all branches ( +- 0.22% ) (83.16%)
1.61570 +- 0.00172 seconds time elapsed ( +- 0.11% )
$
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Original-patch-by: Stephane Eranian <eranian@google.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Link: https://lore.kernel.org/r/20201012070214.2074921-5-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
It should be in a proper mnt namespace when accessing the file.
I think this had no problem since the build-id was actually read from
map__load() -> dso__load() already. But I'd like to change it in the
following commit.
Acked-by: Jiri Olsa <jolsa@redhat.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20201012070214.2074921-4-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
I found some events (like PERF_RECORD_CGROUP) are not copied by perf
inject due to the missing callbacks. Let's add them.
While at it, I've changed the order of the callbacks to match with
struct perf_tool so that we can compare them easily.
Acked-by: Jiri Olsa <jolsa@redhat.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20201012070214.2074921-3-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
Sometimes I can see that 'perf record' piped with 'perf inject' take a
long time processing build-ids.
So introduce a inject-build-id benchmark to the internals benchmark
suite to measure its overhead regularly.
It runs the 'perf inject' command internally and feeds the given number
of synthesized events (MMAP2 + SAMPLE basically).
Usage: perf bench internals inject-build-id <options>
-i, --iterations <n> Number of iterations used to compute average (default: 100)
-m, --nr-mmaps <n> Number of mmap events for each iteration (default: 100)
-n, --nr-samples <n> Number of sample events per mmap event (default: 100)
-v, --verbose be more verbose (show iteration count, DSO name, etc)
By default, it measures average processing time of 100 MMAP2 events
and 10000 SAMPLE events. Below is a result on my laptop.
$ perf bench internals inject-build-id
# Running 'internals/inject-build-id' benchmark:
Average build-id injection took: 25.789 msec (+- 0.202 msec)
Average time per event: 2.528 usec (+- 0.020 usec)
Average memory usage: 8411 KB (+- 7 KB)
Committer testing:
$ perf bench
Usage:
perf bench [<common options>] <collection> <benchmark> [<options>]
# List of all available benchmark collections:
sched: Scheduler and IPC benchmarks
syscall: System call benchmarks
mem: Memory access benchmarks
numa: NUMA scheduling and MM benchmarks
futex: Futex stressing benchmarks
epoll: Epoll stressing benchmarks
internals: Perf-internals benchmarks
all: All benchmarks
$ perf bench internals
# List of available benchmarks for collection 'internals':
synthesize: Benchmark perf event synthesis
kallsyms-parse: Benchmark kallsyms parsing
inject-build-id: Benchmark build-id injection
$ perf bench internals inject-build-id
# Running 'internals/inject-build-id' benchmark:
Average build-id injection took: 14.202 msec (+- 0.059 msec)
Average time per event: 1.392 usec (+- 0.006 usec)
Average memory usage: 12650 KB (+- 10 KB)
Average build-id-all injection took: 12.831 msec (+- 0.071 msec)
Average time per event: 1.258 usec (+- 0.007 usec)
Average memory usage: 11895 KB (+- 10 KB)
$
$ perf stat -r5 perf bench internals inject-build-id
# Running 'internals/inject-build-id' benchmark:
Average build-id injection took: 14.380 msec (+- 0.056 msec)
Average time per event: 1.410 usec (+- 0.006 usec)
Average memory usage: 12608 KB (+- 11 KB)
Average build-id-all injection took: 11.889 msec (+- 0.064 msec)
Average time per event: 1.166 usec (+- 0.006 usec)
Average memory usage: 11838 KB (+- 10 KB)
# Running 'internals/inject-build-id' benchmark:
Average build-id injection took: 14.246 msec (+- 0.065 msec)
Average time per event: 1.397 usec (+- 0.006 usec)
Average memory usage: 12744 KB (+- 10 KB)
Average build-id-all injection took: 12.019 msec (+- 0.066 msec)
Average time per event: 1.178 usec (+- 0.006 usec)
Average memory usage: 11963 KB (+- 10 KB)
# Running 'internals/inject-build-id' benchmark:
Average build-id injection took: 14.321 msec (+- 0.067 msec)
Average time per event: 1.404 usec (+- 0.007 usec)
Average memory usage: 12690 KB (+- 10 KB)
Average build-id-all injection took: 11.909 msec (+- 0.041 msec)
Average time per event: 1.168 usec (+- 0.004 usec)
Average memory usage: 11938 KB (+- 10 KB)
# Running 'internals/inject-build-id' benchmark:
Average build-id injection took: 14.287 msec (+- 0.059 msec)
Average time per event: 1.401 usec (+- 0.006 usec)
Average memory usage: 12864 KB (+- 10 KB)
Average build-id-all injection took: 11.862 msec (+- 0.058 msec)
Average time per event: 1.163 usec (+- 0.006 usec)
Average memory usage: 12103 KB (+- 10 KB)
# Running 'internals/inject-build-id' benchmark:
Average build-id injection took: 14.402 msec (+- 0.053 msec)
Average time per event: 1.412 usec (+- 0.005 usec)
Average memory usage: 12876 KB (+- 10 KB)
Average build-id-all injection took: 11.826 msec (+- 0.061 msec)
Average time per event: 1.159 usec (+- 0.006 usec)
Average memory usage: 12111 KB (+- 10 KB)
Performance counter stats for 'perf bench internals inject-build-id' (5 runs):
4,267.48 msec task-clock:u # 1.502 CPUs utilized ( +- 0.14% )
0 context-switches:u # 0.000 K/sec
0 cpu-migrations:u # 0.000 K/sec
102,092 page-faults:u # 0.024 M/sec ( +- 0.08% )
3,894,589,578 cycles:u # 0.913 GHz ( +- 0.19% ) (83.49%)
140,078,421 stalled-cycles-frontend:u # 3.60% frontend cycles idle ( +- 0.77% ) (83.34%)
948,581,189 stalled-cycles-backend:u # 24.36% backend cycles idle ( +- 0.46% ) (83.25%)
5,835,587,719 instructions:u # 1.50 insn per cycle
# 0.16 stalled cycles per insn ( +- 0.21% ) (83.24%)
1,267,423,636 branches:u # 296.996 M/sec ( +- 0.22% ) (83.12%)
17,484,290 branch-misses:u # 1.38% of all branches ( +- 0.12% ) (83.55%)
2.84176 +- 0.00222 seconds time elapsed ( +- 0.08% )
$
Acked-by: Jiri Olsa <jolsa@redhat.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20201012070214.2074921-2-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
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Some hardware designs have USB typec connector attached to both
SoC and super speed mux. We need to use separate connector node for
such design.
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Link: https://lore.kernel.org/r/20200920134905.4370-2-biju.das.jz@bp.renesas.com
Signed-off-by: Rob Herring <robh@kernel.org>
|
