mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-24 03:20:53 +07:00
50b7d85680
23000 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Chris Kennelly
|
206e22f019 |
tools/testing/selftests: add self-test for verifying load alignment
This produces a PIE binary with a variety of p_align requirements, suitable for verifying that the load address meets that alignment requirement. Signed-off-by: Chris Kennelly <ckennelly@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Cc: Shuah Khan <shuah@kernel.org> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: Alexey Dobriyan <adobriyan@gmail.com> Cc: David Rientjes <rientjes@google.com> Cc: Fangrui Song <maskray@google.com> Cc: Hugh Dickens <hughd@google.com> Cc: Ian Rogers <irogers@google.com> Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> Cc: Mike Kravetz <mike.kravetz@oracle.com> Cc: Nick Desaulniers <ndesaulniers@google.com> Cc: Sandeep Patil <sspatil@google.com> Cc: Song Liu <songliubraving@fb.com> Cc: Suren Baghdasaryan <surenb@google.com> Link: https://lkml.kernel.org/r/20200820170541.1132271-3-ckennelly@google.com Link: https://lkml.kernel.org/r/20200821233848.3904680-3-ckennelly@google.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
|
Linus Torvalds
|
578a7155c5 |
linux-kselftest-kunit-fixes-5.10-rc1
This Kunit fixes update consists of several kunit tool bug fixes in flag handling, run outside kernel tree, make errors, and generating results. -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEPZKym/RZuOCGeA/kCwJExA0NQxwFAl+It8sACgkQCwJExA0N QxzwMhAAncxGyhPX0JoYJMpz6fFjITt0Bnrv21OcfO1VeIGExOoHfmpmsXVK1dbv VIlLEAmjAlX6UIpEpi/DN3DfUFi9E0oeCZd4EOnehti12fs4sFYXeJvYK2TrKyNV zCaUxHb6xxL4Toy4XuNRdD6016f39Vax4QcM/puNm5CNVMboWeyzZaqooASxLya8 SjZSthmS+kAqvHcB6aqPx7GhBib/k6T+Br5w6paM79tYk9OSMhvhtIx/+twQFw4e gkT5ZcTdk+t6mjBUY+w1l28W9VlAQi5kjB+22M8loRv2spu3YyxlVqDuQI0MUy+N RntNsxIwJOSt6N0DvUbXDEZwn/SvX0KS40nI5SSJjkcS1orAE2FQwjY2WzHCZp7T stQ+Wp7nHuzlVTRUz1pd6ZFluUshptkMwEQfznMIqdxgbWZSQWPc9ypGp6dU9hti jM5jGUnzYqIe5qdccImRd8fijLKJ/BOvmOauijhJPavhBmCqwseERhb0XN4vpiH+ YCkdT7HHVIZWOr6ECovKizeElTfZN3MBNZV30oDeOzsQSyp5W5vke9u+weKN7NF6 Y2+DACvT87B8miIUPv2HNlAi74nBx6RLDyqLbRgarjNOfDsDfkqw5OHxFBr29TDb u7THjs63LouVGFgaON7yPMgnsYep4irYuaT7kM9QDW1Af0xyQSs= =drcb -----END PGP SIGNATURE----- Merge tag 'linux-kselftest-kunit-fixes-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest Pull Kunit updates from Shuah Khan: "Several kunit tool bug fixes in flag handling, run outside kernel tree, make errors, and generating results" * tag 'linux-kselftest-kunit-fixes-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: kunit: tool: fix display of make errors kunit: tool: handle when .kunit exists but .kunitconfig does not kunit: tool: fix --alltests flag kunit: tool: allow generating test results in JSON kunit: tool: fix running kunit_tool from outside kernel tree |
||
|
Linus Torvalds
|
0674324b16 |
linux-kselftest-next-5.10-rc1
This kselftest update for Linux 5.10-rc1 consists of enhancements to
-- speed up headers_install done during selftest build
-- add generic make nesting support
-- add support to select individual tests:
- Selftests build/install generates run_kselftest.sh script to run
selftests on a target system. Currently the script doesn't have
support for selecting individual tests. Add support for it.
With this enhancement, user can select test collections (or tests)
individually. e.g:
run_kselftest.sh -c seccomp -t timers:posix_timers -t timers:nanosleep
Additionally adds a way to list all known tests with "-l", usage
with "-h", and perform a dry run without running tests with "-n".
-----BEGIN PGP SIGNATURE-----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=pf0+
-----END PGP SIGNATURE-----
Merge tag 'linux-kselftest-next-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull kselftest updates from Shuah Khan:
- speed up headers_install done during selftest build
- add generic make nesting support
- add support to select individual tests:
Selftests build/install generates run_kselftest.sh script to run
selftests on a target system. Currently the script doesn't have
support for selecting individual tests. Add support for it.
With this enhancement, user can select test collections (or tests)
individually. e.g:
run_kselftest.sh -c seccomp -t timers:posix_timers -t timers:nanosleep
Additionally adds a way to list all known tests with "-l", usage with
"-h", and perform a dry run without running tests with "-n".
* tag 'linux-kselftest-next-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
doc: dev-tools: kselftest.rst: Update examples and paths
selftests/run_kselftest.sh: Make each test individually selectable
selftests: Extract run_kselftest.sh and generate stand-alone test list
selftests: Add missing gitignore entries
selftests: more general make nesting support
selftests: use "$(MAKE)" instead of "make" for headers_install
|
||
|
Linus Torvalds
|
bbf6259903 |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
Pull trivial updates from Jiri Kosina: "The latest advances in computer science from the trivial queue" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: xtensa: fix Kconfig typo spelling.txt: Remove some duplicate entries mtd: rawnand: oxnas: cleanup/simplify code selftests: vm: add fragment CONFIG_GUP_BENCHMARK perf: Fix opt help text for --no-bpf-event HID: logitech-dj: Fix spelling in comment bootconfig: Fix kernel message mentioning CONFIG_BOOT_CONFIG MAINTAINERS: rectify MMP SUPPORT after moving cputype.h scif: Fix spelling of EACCES printk: fix global comment lib/bitmap.c: fix spello fs: Fix missing 'bit' in comment |
||
|
Linus Torvalds
|
0cd7d9795f |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/livepatching/livepatching
Pull livepatching update from Jiri Kosina: "livepatching kselftest output fix from Miroslav Benes" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/livepatching/livepatching: selftests/livepatch: Do not check order when using "comm" for dmesg checking |
||
|
Linus Torvalds
|
726eb70e0d |
Char/Misc driver patches for 5.10-rc1
Here is the big set of char, misc, and other assorted driver subsystem patches for 5.10-rc1. There's a lot of different things in here, all over the drivers/ directory. Some summaries: - soundwire driver updates - habanalabs driver updates - extcon driver updates - nitro_enclaves new driver - fsl-mc driver and core updates - mhi core and bus updates - nvmem driver updates - eeprom driver updates - binder driver updates and fixes - vbox minor bugfixes - fsi driver updates - w1 driver updates - coresight driver updates - interconnect driver updates - misc driver updates - other minor driver updates All of these have been in linux-next for a while with no reported issues. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> -----BEGIN PGP SIGNATURE----- iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCX4g8YQ8cZ3JlZ0Brcm9h aC5jb20ACgkQMUfUDdst+yngKgCeNpArCP/9vQJRK9upnDm8ZLunSCUAn1wUT/2A /bTQ42c/WRQ+LU828GSM =6sO2 -----END PGP SIGNATURE----- Merge tag 'char-misc-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc driver updates from Greg KH: "Here is the big set of char, misc, and other assorted driver subsystem patches for 5.10-rc1. There's a lot of different things in here, all over the drivers/ directory. Some summaries: - soundwire driver updates - habanalabs driver updates - extcon driver updates - nitro_enclaves new driver - fsl-mc driver and core updates - mhi core and bus updates - nvmem driver updates - eeprom driver updates - binder driver updates and fixes - vbox minor bugfixes - fsi driver updates - w1 driver updates - coresight driver updates - interconnect driver updates - misc driver updates - other minor driver updates All of these have been in linux-next for a while with no reported issues" * tag 'char-misc-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (396 commits) binder: fix UAF when releasing todo list docs: w1: w1_therm: Fix broken xref, mistakes, clarify text misc: Kconfig: fix a HISI_HIKEY_USB dependency LSM: Fix type of id parameter in kernel_post_load_data prototype misc: Kconfig: add a new dependency for HISI_HIKEY_USB firmware_loader: fix a kernel-doc markup w1: w1_therm: make w1_poll_completion static binder: simplify the return expression of binder_mmap test_firmware: Test partial read support firmware: Add request_partial_firmware_into_buf() firmware: Store opt_flags in fw_priv fs/kernel_file_read: Add "offset" arg for partial reads IMA: Add support for file reads without contents LSM: Add "contents" flag to kernel_read_file hook module: Call security_kernel_post_load_data() firmware_loader: Use security_post_load_data() LSM: Introduce kernel_post_load_data() hook fs/kernel_read_file: Add file_size output argument fs/kernel_read_file: Switch buffer size arg to size_t fs/kernel_read_file: Remove redundant size argument ... |
||
|
Linus Torvalds
|
ade7afe3e6 |
Staging / IIO driver updates for 5.10-rc1
Here is the large set of staging and IIO driver updates for 5.10-rc1. Included in here are: - new IIO drivers - new IIO driver frameworks - various IIO driver fixes and updates - IIO device tree conversions to yaml - so many minor staging driver coding style cleanups - most cdev driver moved out of staging - no new drivers added or removed Full details are in the shortlog. All of these have been in linux-next for a while with no reported issues. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> -----BEGIN PGP SIGNATURE----- iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCX4g+oQ8cZ3JlZ0Brcm9h aC5jb20ACgkQMUfUDdst+ymAyQCghI58tN/Np3itPlZuc+HYFN7OHH8An1TKzCm1 bwkfw5qAcHab+R7KQZOA =BaXS -----END PGP SIGNATURE----- Merge tag 'staging-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging Pull staging / IIO driver updates from Greg KH: "Here is the large set of staging and IIO driver updates for 5.10-rc1. Included in here are: - new IIO drivers - new IIO driver frameworks - various IIO driver fixes and updates - IIO device tree conversions to yaml - so many minor staging driver coding style cleanups - most cdev driver moved out of staging - no staging drivers added or removed Full details are in the shortlog. All of these have been in linux-next for a while with no reported issues" * tag 'staging-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (476 commits) staging: comedi: check validity of wMaxPacketSize of usb endpoints found staging: wfx: improve robustness of wfx_get_hw_rate() staging: wfx: drop unicode characters from strings staging: wfx: gpiod_get_value() can return an error staging: wfx: increase robustness of hif_generic_confirm() staging: wfx: wfx_init_common() returns NULL on error staging: wfx: standardize the error when vif does not exist staging: wfx: check memory allocation staging: wfx: improve error handling of hif_join() staging: dpaa2-switch: add a dpaa2_switch prefix to all functions in ethsw.c staging: dpaa2-switch: add a dpaa2_switch_ prefix to all functions in ethsw-ethtool.c staging: rtl8188eu: Fix long lines dt-bindings: staging: wfx: silabs,wfx yaml conversion staging: wfx: update copyrights dates staging: wfx: fix QoS priority for slow buses staging: wfx: fix BA sessions for older firmwares staging: wfx: remove remaining code of 'secure link' feature staging: wfx: fix handling of MMIC error staging: vchiq: Fix list_for_each exit tests staging: greybus: use __force when assigning __u8 value to snd_ctl_elem_type_t ... |
||
|
Linus Torvalds
|
4da9af0014 |
threads-v5.10
-----BEGIN PGP SIGNATURE-----
iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCX4a4sAAKCRCRxhvAZXjc
ohdRAP9fclgrRkTl3o4cgaK0PUMt8BZ5QCg/SPQrVT58AQlfSwEAsNtWAeo6U2z1
FLGuCoPBEW1Zghkj1lMbIhj5zyVaEQ8=
=Z7Q0
-----END PGP SIGNATURE-----
Merge tag 'threads-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux
Pull pidfd updates from Christian Brauner:
"This introduces a new extension to the pidfd_open() syscall. Users can
now raise the new PIDFD_NONBLOCK flag to support non-blocking pidfd
file descriptors. This has been requested for uses in async process
management libraries such as async-pidfd in Rust.
Ever since the introduction of pidfds and more advanced async io
various programming languages such as Rust have grown support for
async event libraries. These libraries are created to help build
epoll-based event loops around file descriptors. A common pattern is
to automatically make all file descriptors they manage to O_NONBLOCK.
For such libraries the EAGAIN error code is treated specially. When a
function is called that returns EAGAIN the function isn't called again
until the event loop indicates the the file descriptor is ready.
Supporting EAGAIN when waiting on pidfds makes such libraries just
work with little effort.
This introduces a new flag PIDFD_NONBLOCK that is equivalent to
O_NONBLOCK. This follows the same patterns we have for other (anon
inode) file descriptors such as EFD_NONBLOCK, IN_NONBLOCK,
SFD_NONBLOCK, TFD_NONBLOCK and the same for close-on-exec flags.
Passing a non-blocking pidfd to waitid() currently has no effect, i.e.
is not supported. There are users which would like to use waitid() on
pidfds that are O_NONBLOCK and mix it with pidfds that are blocking
and both pass them to waitid().
The expected behavior is to have waitid() return -EAGAIN for
non-blocking pidfds and to block for blocking pidfds without needing
to perform any additional checks for flags set on the pidfd before
passing it to waitid(). Non-blocking pidfds will return EAGAIN from
waitid() when no child process is ready yet. Returning -EAGAIN for
non-blocking pidfds makes it easier for event loops that handle EAGAIN
specially.
It also makes the API more consistent and uniform. In essence,
waitid() is treated like a read on a non-blocking pidfd or a recvmsg()
on a non-blocking socket.
With the addition of support for non-blocking pidfds we support the
same functionality that sockets do. For sockets() recvmsg() supports
MSG_DONTWAIT for pidfds waitid() supports WNOHANG. Both flags are
per-call options. In contrast non-blocking pidfds and non-blocking
sockets are a setting on an open file description affecting all
threads in the calling process as well as other processes that hold
file descriptors referring to the same open file description. Both
behaviors, per call and per open file description, have genuine
use-cases.
The interaction with the WNOHANG flag is documented as follows:
- If a non-blocking pidfd is passed and WNOHANG is not raised we
simply raise the WNOHANG flag internally. When do_wait() returns
indicating that there are eligible child processes but none have
exited yet we set EAGAIN. If no child process exists we continue
returning ECHILD.
- If a non-blocking pidfd is passed and WNOHANG is raised waitid()
will continue returning 0, i.e. it will not set EAGAIN. This ensure
backwards compatibility with applications passing WNOHANG
explicitly with pidfds"
* tag 'threads-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux:
tests: remove O_NONBLOCK before waiting for WSTOPPED
tests: add waitid() tests for non-blocking pidfds
tests: port pidfd_wait to kselftest harness
pidfd: support PIDFD_NONBLOCK in pidfd_open()
exit: support non-blocking pidfds
|
||
|
Linus Torvalds
|
612e7a4c16 |
kernel-clone-v5.9
-----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCXz5bNAAKCRCRxhvAZXjc opfjAP9R/J72yxdd2CLGNZ96hyiRX1NgFDOVUhscOvujYJf8ZwD+OoLmKMvAyFW6 hnMhT1n9Q+aq194hyzChOLQaBTejBQ8= =4WCX -----END PGP SIGNATURE----- Merge tag 'kernel-clone-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux Pull kernel_clone() updates from Christian Brauner: "During the v5.9 merge window we reworked the process creation codepaths across multiple architectures. After this work we were only left with the _do_fork() helper based on the struct kernel_clone_args calling convention. As was pointed out _do_fork() isn't valid kernelese especially for a helper that isn't just static. This series removes the _do_fork() helper and introduces the new kernel_clone() helper. The process creation cleanup didn't change the name to something more reasonable mainly because _do_fork() was used in quite a few places. So sending this as a separate series seemed the better strategy. I originally intended to send this early in the v5.9 development cycle after the merge window had closed but given that this was touching quite a few places I decided to defer this until the v5.10 merge window" * tag 'kernel-clone-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux: sched: remove _do_fork() tracing: switch to kernel_clone() kgdbts: switch to kernel_clone() kprobes: switch to kernel_clone() x86: switch to kernel_clone() sparc: switch to kernel_clone() nios2: switch to kernel_clone() m68k: switch to kernel_clone() ia64: switch to kernel_clone() h8300: switch to kernel_clone() fork: introduce kernel_clone() |
||
|
Linus Torvalds
|
9e51183e94 |
linux-kselftest-fixes-5.10-rc1
This kselftest fixes update consists of a selftests harness fix to flush stdout before forking to avoid parent and child printing duplicates messages. This is evident when test output is redirected to a file. The second fix is a tools/ wide change to avoid comma separated statements from Joe Perches. This fix spans tools/lib, tools/power/cpupower, and selftests. -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEPZKym/RZuOCGeA/kCwJExA0NQxwFAl+GAdIACgkQCwJExA0N QxyraBAAwsPISUpSA34WLuUwNCddI3ttNW2R63ZrdKSy7QlreM02zG9qyEDPwFil GLlgXfUE8QOI7rfiqSwr1elzS07bDdel6UcxTuhuy5KPs2+yieGGZ5lllsVY6gJu kF5m7setmdmHQr76HCyyGddwdpCTpz7sP3BJzmYn2iAWAQMwtZBXOEgmnf2yiskX SHF/f3Bvrnm+BtbzZEa+ysHpL72AlpKrGuLQAnNOCp/DomKEtRACTNxIzKFeO++r uelbHO/MzdaGmrCxy3J/RWz3llQVnj6aafZFaqAV7ReWi/OOYTsV48pAHRm8TTv8 1LvVP48b7aCUc7QWu+d8SBSDfJQANI4tgcP0TI/hUboIuhU8bVkZAUF69txdFgzb DopwQVybQq5yEqmPg1RzvccbDojxXq72BvZyqPBo8WmKHWOQXCo9A1owudmcqtob WqTr1eAVAd6Rc2vcjkhnzYxQcb8A093ZfP1fyAZ5HQSH5No//4FP9pWBwMzpncKQ GdHmMNBns6v1muWMBj6bgT4GA1sN765Kzt1StYSC257v6gtA8+xHo/PUfojZJxy9 bieAzuqE8n68IKKz4/Rk2JvfFBnaxDZyQUITOCrcoWJRk5apJc3T5+goq+Bep5Na SOFbb0JvrGLBjX3bChmLIYVa7zQkupBgwWU8NPM1tYxce+pBS30= =jgRu -----END PGP SIGNATURE----- Merge tag 'linux-kselftest-fixes-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest Pull kselftest updates from Shuah Khan: - a selftests harness fix to flush stdout before forking to avoid parent and child printing duplicates messages. This is evident when test output is redirected to a file. - a tools/ wide change to avoid comma separated statements from Joe Perches. This fix spans tools/lib, tools/power/cpupower, and selftests. * tag 'linux-kselftest-fixes-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: tools: Avoid comma separated statements selftests/harness: Flush stdout before forking |
||
|
Linus Torvalds
|
cf1d2b44f6 |
ACPI updates for 5.10-rc1
- Add support for generic initiator-only proximity domains to
the ACPI NUMA code and the architectures using it (Jonathan
Cameron).
- Clean up some non-ACPICA code referring to debug facilities from
ACPICA that are not actually used in there (Hanjun Guo).
- Add new DPTF driver for the PCH FIVR participant (Srinivas
Pandruvada).
- Reduce overhead related to accessing GPE registers in ACPICA and
the OS interface layer and make it possible to access GPE registers
using logical addresses if they are memory-mapped (Rafael Wysocki).
- Update the ACPICA code in the kernel to upstream revision 20200925
including changes as follows:
* Add predefined names from the SMBus sepcification (Bob Moore).
* Update acpi_help UUID list (Bob Moore).
* Return exceptions for string-to-integer conversions in iASL (Bob
Moore).
* Add a new "ALL <NameSeg>" debugger command (Bob Moore).
* Add support for 64 bit risc-v compilation (Colin Ian King).
* Do assorted cleanups (Bob Moore, Colin Ian King, Randy Dunlap).
- Add new ACPI backlight whitelist entry for HP 635 Notebook (Alex
Hung).
- Move TPS68470 OpRegion driver to drivers/acpi/pmic/ and split out
Kconfig and Makefile specific for ACPI PMIC (Andy Shevchenko).
- Clean up the ACPI SoC driver for AMD SoCs (Hanjun Guo).
- Add missing config_item_put() to fix refcount leak (Hanjun Guo).
- Drop lefrover field from struct acpi_memory_device (Hanjun Guo).
- Make the ACPI extlog driver check for RDMSR failures (Ben
Hutchings).
- Fix handling of lid state changes in the ACPI button driver when
input device is closed (Dmitry Torokhov).
- Fix several assorted build issues (Barnabás Pőcze, John Garry,
Nathan Chancellor, Tian Tao).
- Drop unused inline functions and reduce code duplication by using
kobj_to_dev() in the NFIT parsing code (YueHaibing, Wang Qing).
- Serialize tools/power/acpi Makefile (Thomas Renninger).
-----BEGIN PGP SIGNATURE-----
iQJGBAABCAAwFiEE4fcc61cGeeHD/fCwgsRv/nhiVHEFAl+F4IkSHHJqd0Byand5
c29ja2kubmV0AAoJEILEb/54YlRx1gIQAIZrt09fquEIZhYulGZAkuYhSX2U/DZt
poow5+TiGk36JNHlbZS19kZ3F0tJ1wA6CKSfF/bYyULxL+gYaUjdLXzv2kArTSAj
nzDXQ2CystpySZI/sEkl4QjsMg0xuZlBhlnCfNHzJw049TgdsJHnxMkJXb8T90A+
l2JKm2OpBkNvQGNpwd3djLg8xSDnHUmuevsWZPHDp92/fLMF9DUBk8dVuEwa0ndF
hAUpWm+EL1tJQnhNwtfV/Akd9Ypqgk/7ROFWFHGDtHMZGnBjpyXZw68vHMX7SL6N
Ej90GWGPHSJs/7Fsg4Hiaxxcph9WFNLPcpck5lVAMIrNHMKANjqQzCsmHavV/WTG
STC9/qwJauA1EOjovlmlCFHctjKE/ya6Hm299WTlfBqB+Lu1L3oMR2CC+Uj0YfyG
sv3264rJCsaSw610iwQOG807qHENopASO2q5DuKG0E9JpcaBUwn1N4qP5svvQciq
4aA8Ma6xM/QHCO4CS0Se9C0+WSVtxWwOUichRqQmU4E6u1sXvKJxTeWo79rV7PAh
L6BwoOxBLabEiyzpi6HPGs6DoKj/N6tOQenBh4ibdwpAwMtq7hIlBFa0bp19c2wT
vx8F2Raa8vbQ2zZ1QEiPZnPLJUoy2DgaCtKJ6E0FTDXNs3VFlWgyhIUlIRqk5BS9
OnAwVAUrTMkJ
=feLU
-----END PGP SIGNATURE-----
Merge tag 'acpi-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI updates from Rafael Wysocki:
"These add support for generic initiator-only proximity domains to the
ACPI NUMA code and the architectures using it, clean up some
non-ACPICA code referring to debug facilities from ACPICA, reduce the
overhead related to accessing GPE registers, add a new DPTF (Dynamic
Power and Thermal Framework) participant driver, update the ACPICA
code in the kernel to upstream revision 20200925, add a new ACPI
backlight whitelist entry, fix a few assorted issues and clean up some
code.
Specifics:
- Add support for generic initiator-only proximity domains to the
ACPI NUMA code and the architectures using it (Jonathan Cameron)
- Clean up some non-ACPICA code referring to debug facilities from
ACPICA that are not actually used in there (Hanjun Guo)
- Add new DPTF driver for the PCH FIVR participant (Srinivas
Pandruvada)
- Reduce overhead related to accessing GPE registers in ACPICA and
the OS interface layer and make it possible to access GPE registers
using logical addresses if they are memory-mapped (Rafael Wysocki)
- Update the ACPICA code in the kernel to upstream revision 20200925
including changes as follows:
+ Add predefined names from the SMBus sepcification (Bob Moore)
+ Update acpi_help UUID list (Bob Moore)
+ Return exceptions for string-to-integer conversions in iASL (Bob
Moore)
+ Add a new "ALL <NameSeg>" debugger command (Bob Moore)
+ Add support for 64 bit risc-v compilation (Colin Ian King)
+ Do assorted cleanups (Bob Moore, Colin Ian King, Randy Dunlap)
- Add new ACPI backlight whitelist entry for HP 635 Notebook (Alex
Hung)
- Move TPS68470 OpRegion driver to drivers/acpi/pmic/ and split out
Kconfig and Makefile specific for ACPI PMIC (Andy Shevchenko)
- Clean up the ACPI SoC driver for AMD SoCs (Hanjun Guo)
- Add missing config_item_put() to fix refcount leak (Hanjun Guo)
- Drop lefrover field from struct acpi_memory_device (Hanjun Guo)
- Make the ACPI extlog driver check for RDMSR failures (Ben
Hutchings)
- Fix handling of lid state changes in the ACPI button driver when
input device is closed (Dmitry Torokhov)
- Fix several assorted build issues (Barnabás Pőcze, John Garry,
Nathan Chancellor, Tian Tao)
- Drop unused inline functions and reduce code duplication by using
kobj_to_dev() in the NFIT parsing code (YueHaibing, Wang Qing)
- Serialize tools/power/acpi Makefile (Thomas Renninger)"
* tag 'acpi-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (64 commits)
ACPICA: Update version to 20200925 Version 20200925
ACPICA: Remove unnecessary semicolon
ACPICA: Debugger: Add a new command: "ALL <NameSeg>"
ACPICA: iASL: Return exceptions for string-to-integer conversions
ACPICA: acpi_help: Update UUID list
ACPICA: Add predefined names found in the SMBus sepcification
ACPICA: Tree-wide: fix various typos and spelling mistakes
ACPICA: Drop the repeated word "an" in a comment
ACPICA: Add support for 64 bit risc-v compilation
ACPI: button: fix handling lid state changes when input device closed
tools/power/acpi: Serialize Makefile
ACPI: scan: Replace ACPI_DEBUG_PRINT() with pr_debug()
ACPI: memhotplug: Remove 'state' from struct acpi_memory_device
ACPI / extlog: Check for RDMSR failure
ACPI: Make acpi_evaluate_dsm() prototype consistent
docs: mm: numaperf.rst Add brief description for access class 1.
node: Add access1 class to represent CPU to memory characteristics
ACPI: HMAT: Fix handling of changes from ACPI 6.2 to ACPI 6.3
ACPI: Let ACPI know we support Generic Initiator Affinity Structures
x86: Support Generic Initiator only proximity domains
...
|
||
|
Linus Torvalds
|
15cb5469fc |
platform-drivers-x86 for v5.10-1
Rather calm cycle for PDx86, all these have been in for-next for a couple of days with no bot complaints. Highlights: - PMC TigerLake fixes and new RocketLake support - Various small fixes / updates in other drivers/tools The following is an automated git shortlog grouped by driver: MAINTAINERS: - update X86 PLATFORM DRIVERS entry with new kernel.org git repo - Update maintainers for pmc_core driver hp-wmi: - add support for thermal policy intel_pmc_core: - fix: Replace dev_dbg macro with dev_info() - Add Intel RocketLake (RKL) support - Clean up: Remove the duplicate comments and reorganize - Fix the slp_s0 counter displayed value - Fix TigerLake power gating status map mlx-platform: - Add capability field to platform FAN description - Remove PSU EEPROM configuration platform_data/mlxreg: - Extend core platform structure - Update module license pmc_core: - Use descriptive names for LPM registers tools/power/x86/intel-speed-select: - Update version for v5.10 - Fix missing base-freq core IDs -----BEGIN PGP SIGNATURE----- iQFIBAABCAAyFiEEuvA7XScYQRpenhd+kuxHeUQDJ9wFAl+FmAsUHGhkZWdvZWRl QHJlZGhhdC5jb20ACgkQkuxHeUQDJ9x5awf/VWn0gcSw1i+y+Q/KPw/RCMXrEQQm Bqyt++IDSonvjBUmxE7QYtPvHK7lecPLXUzLkcfSoUmEZSPGoqe4F5Hj+814lj8x fveScf2DwUQyEfj26y4rmza1K4h7VohjJ7rQm0+t15KamrcogLiwqDpvel4v90lp YVvJUxDBOJxCrMs5fAziZAP7FxD42d8j664DFCPONH3EsY/vZMfOnsDRKhjahtFp LTtWXY5LyFf5HARKhubv/gmDddR7FzZB8/xc/G1CXpOmUBTcSgHgXH1OE/ypBXIe LOdchGqL2WRTq71IUKsvEXYbLSOHOMbIfBr7eCwZRKfmQLjQ8HXqI7xl9A== =luk4 -----END PGP SIGNATURE----- Merge tag 'platform-drivers-x86-v5.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86 Pull x86 platform driver updates from Hans de Goede: "Rather calm cycle for x86 platform drivers, all these have been in for-next for a couple of days with no bot complaints. Highlights: - PMC TigerLake fixes and new RocketLake support - various small fixes / updates in other drivers/tools" * tag 'platform-drivers-x86-v5.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: MAINTAINERS: update X86 PLATFORM DRIVERS entry with new kernel.org git repo platform/x86: mlx-platform: Add capability field to platform FAN description platform_data/mlxreg: Extend core platform structure platform_data/mlxreg: Update module license platform/x86: mlx-platform: Remove PSU EEPROM configuration MAINTAINERS: Update maintainers for pmc_core driver platform/x86: intel_pmc_core: fix: Replace dev_dbg macro with dev_info() platform/x86: intel_pmc_core: Add Intel RocketLake (RKL) support platform/x86: intel_pmc_core: Clean up: Remove the duplicate comments and reorganize platform/x86: intel_pmc_core: Fix the slp_s0 counter displayed value platform/x86: intel_pmc_core: Fix TigerLake power gating status map platform/x86: pmc_core: Use descriptive names for LPM registers tools/power/x86/intel-speed-select: Update version for v5.10 tools/power/x86/intel-speed-select: Fix missing base-freq core IDs platform/x86: hp-wmi: add support for thermal policy |
||
|
Linus Torvalds
|
da9803dfd3 |
This feature enhances the current guest memory encryption support
called SEV by also encrypting the guest register state, making the
registers inaccessible to the hypervisor by en-/decrypting them on world
switches. Thus, it adds additional protection to Linux guests against
exfiltration, control flow and rollback attacks.
With SEV-ES, the guest is in full control of what registers the
hypervisor can access. This is provided by a guest-host exchange
mechanism based on a new exception vector called VMM Communication
Exception (#VC), a new instruction called VMGEXIT and a shared
Guest-Host Communication Block which is a decrypted page shared between
the guest and the hypervisor.
Intercepts to the hypervisor become #VC exceptions in an SEV-ES guest so
in order for that exception mechanism to work, the early x86 init code
needed to be made able to handle exceptions, which, in itself, brings
a bunch of very nice cleanups and improvements to the early boot code
like an early page fault handler, allowing for on-demand building of the
identity mapping. With that, !KASLR configurations do not use the EFI
page table anymore but switch to a kernel-controlled one.
The main part of this series adds the support for that new exchange
mechanism. The goal has been to keep this as much as possibly
separate from the core x86 code by concentrating the machinery in two
SEV-ES-specific files:
arch/x86/kernel/sev-es-shared.c
arch/x86/kernel/sev-es.c
Other interaction with core x86 code has been kept at minimum and behind
static keys to minimize the performance impact on !SEV-ES setups.
Work by Joerg Roedel and Thomas Lendacky and others.
-----BEGIN PGP SIGNATURE-----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=toqi
-----END PGP SIGNATURE-----
Merge tag 'x86_seves_for_v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 SEV-ES support from Borislav Petkov:
"SEV-ES enhances the current guest memory encryption support called SEV
by also encrypting the guest register state, making the registers
inaccessible to the hypervisor by en-/decrypting them on world
switches. Thus, it adds additional protection to Linux guests against
exfiltration, control flow and rollback attacks.
With SEV-ES, the guest is in full control of what registers the
hypervisor can access. This is provided by a guest-host exchange
mechanism based on a new exception vector called VMM Communication
Exception (#VC), a new instruction called VMGEXIT and a shared
Guest-Host Communication Block which is a decrypted page shared
between the guest and the hypervisor.
Intercepts to the hypervisor become #VC exceptions in an SEV-ES guest
so in order for that exception mechanism to work, the early x86 init
code needed to be made able to handle exceptions, which, in itself,
brings a bunch of very nice cleanups and improvements to the early
boot code like an early page fault handler, allowing for on-demand
building of the identity mapping. With that, !KASLR configurations do
not use the EFI page table anymore but switch to a kernel-controlled
one.
The main part of this series adds the support for that new exchange
mechanism. The goal has been to keep this as much as possibly separate
from the core x86 code by concentrating the machinery in two
SEV-ES-specific files:
arch/x86/kernel/sev-es-shared.c
arch/x86/kernel/sev-es.c
Other interaction with core x86 code has been kept at minimum and
behind static keys to minimize the performance impact on !SEV-ES
setups.
Work by Joerg Roedel and Thomas Lendacky and others"
* tag 'x86_seves_for_v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (73 commits)
x86/sev-es: Use GHCB accessor for setting the MMIO scratch buffer
x86/sev-es: Check required CPU features for SEV-ES
x86/efi: Add GHCB mappings when SEV-ES is active
x86/sev-es: Handle NMI State
x86/sev-es: Support CPU offline/online
x86/head/64: Don't call verify_cpu() on starting APs
x86/smpboot: Load TSS and getcpu GDT entry before loading IDT
x86/realmode: Setup AP jump table
x86/realmode: Add SEV-ES specific trampoline entry point
x86/vmware: Add VMware-specific handling for VMMCALL under SEV-ES
x86/kvm: Add KVM-specific VMMCALL handling under SEV-ES
x86/paravirt: Allow hypervisor-specific VMMCALL handling under SEV-ES
x86/sev-es: Handle #DB Events
x86/sev-es: Handle #AC Events
x86/sev-es: Handle VMMCALL Events
x86/sev-es: Handle MWAIT/MWAITX Events
x86/sev-es: Handle MONITOR/MONITORX Events
x86/sev-es: Handle INVD Events
x86/sev-es: Handle RDPMC Events
x86/sev-es: Handle RDTSC(P) Events
...
|
||
|
Linus Torvalds
|
6873139ed0 |
objtool changes for v5.10:
- Most of the changes are cleanups and reorganization to make the objtool code
more arch-agnostic. This is in preparation for non-x86 support.
Fixes:
- KASAN fixes.
- Handle unreachable trap after call to noreturn functions better.
- Ignore unreachable fake jumps.
- Misc smaller fixes & cleanups.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
-----BEGIN PGP SIGNATURE-----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=KX5o
-----END PGP SIGNATURE-----
Merge tag 'objtool-core-2020-10-13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull objtool updates from Ingo Molnar:
"Most of the changes are cleanups and reorganization to make the
objtool code more arch-agnostic. This is in preparation for non-x86
support.
Other changes:
- KASAN fixes
- Handle unreachable trap after call to noreturn functions better
- Ignore unreachable fake jumps
- Misc smaller fixes & cleanups"
* tag 'objtool-core-2020-10-13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (21 commits)
perf build: Allow nested externs to enable BUILD_BUG() usage
objtool: Allow nested externs to enable BUILD_BUG()
objtool: Permit __kasan_check_{read,write} under UACCESS
objtool: Ignore unreachable trap after call to noreturn functions
objtool: Handle calling non-function symbols in other sections
objtool: Ignore unreachable fake jumps
objtool: Remove useless tests before save_reg()
objtool: Decode unwind hint register depending on architecture
objtool: Make unwind hint definitions available to other architectures
objtool: Only include valid definitions depending on source file type
objtool: Rename frame.h -> objtool.h
objtool: Refactor jump table code to support other architectures
objtool: Make relocation in alternative handling arch dependent
objtool: Abstract alternative special case handling
objtool: Move macros describing structures to arch-dependent code
objtool: Make sync-check consider the target architecture
objtool: Group headers to check in a single list
objtool: Define 'struct orc_entry' only when needed
objtool: Skip ORC entry creation for non-text sections
objtool: Move ORC logic out of check()
...
|
||
|
Linus Torvalds
|
d5660df4a5 |
Merge branch 'akpm' (patches from Andrew)
Merge misc updates from Andrew Morton: "181 patches. Subsystems affected by this patch series: kbuild, scripts, ntfs, ocfs2, vfs, mm (slab, slub, kmemleak, dax, debug, pagecache, fadvise, gup, swap, memremap, memcg, selftests, pagemap, mincore, hmm, dma, memory-failure, vmallo and migration)" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (181 commits) mm/migrate: remove obsolete comment about device public mm/migrate: remove cpages-- in migrate_vma_finalize() mm, oom_adj: don't loop through tasks in __set_oom_adj when not necessary memblock: use separate iterators for memory and reserved regions memblock: implement for_each_reserved_mem_region() using __next_mem_region() memblock: remove unused memblock_mem_size() x86/setup: simplify reserve_crashkernel() x86/setup: simplify initrd relocation and reservation arch, drivers: replace for_each_membock() with for_each_mem_range() arch, mm: replace for_each_memblock() with for_each_mem_pfn_range() memblock: reduce number of parameters in for_each_mem_range() memblock: make memblock_debug and related functionality private memblock: make for_each_memblock_type() iterator private mircoblaze: drop unneeded NUMA and sparsemem initializations riscv: drop unneeded node initialization h8300, nds32, openrisc: simplify detection of memory extents arm64: numa: simplify dummy_numa_init() arm, xtensa: simplify initialization of high memory pages dma-contiguous: simplify cma_early_percent_memory() KVM: PPC: Book3S HV: simplify kvm_cma_reserve() ... |
||
|
John Hubbard
|
1100262037 |
selftests/vm: 8x compaction_test speedup
This patch reduces the running time for compaction_test from about 27 sec, to 3.3 sec, which is about an 8x speedup. These numbers are for an Intel x86_64 system with 32 GB of DRAM. The compaction_test.c program was spending most of its time doing mmap(), 1 MB at a time, on about 25 GB of memory. Instead, do the mmaps 100 MB at a time. (Going past 100 MB doesn't make things go much faster, because other parts of the program are using the remaining time.) Signed-off-by: John Hubbard <jhubbard@nvidia.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Sri Jayaramappa <sjayaram@akamai.com> Cc: Shuah Khan <shuah@kernel.org> Cc: Mel Gorman <mgorman@techsingularity.net> Link: https://lkml.kernel.org/r/20201002080621.551044-2-jhubbard@nvidia.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
|
Ralph Campbell
|
bfe18a0900 |
tools/testing/selftests/vm/hmm-tests.c: use the new SKIP() macro
Some tests might not be able to be run if resources like huge pages are not available. Mark these tests as skipped instead of simply passing. Signed-off-by: Ralph Campbell <rcampbell@nvidia.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Jason Gunthorpe <jgg@nvidia.com> Cc: Jerome Glisse <jglisse@redhat.com> Cc: John Hubbard <jhubbard@nvidia.com> Cc: Shuah Khan <shuah@kernel.org> Link: http://lkml.kernel.org/r/20200827190400.12608-1-rcampbell@nvidia.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
|
John Hubbard
|
34d109131f |
selftests/vm: fix incorrect gcc invocation in some cases
Avoid accidental wrong builds, due to built-in rules working just a little bit too well--but not quite as well as required for our situation here. In other words, "make userfaultfd" (for example) is supposed to fail to build at all, because this Makefile only supports either "make" (all), or "make /full/path". However, the built-in rules, if not suppressed, will pick up CFLAGS and the initial LDLIBS (but not the target-specific LDLIBS, because those are only set for the full path target!). This causes it to get pretty far into building things despite using incorrect values such as an *occasionally* incomplete LDLIBS value. Signed-off-by: John Hubbard <jhubbard@nvidia.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Cc: Shuah Khan <shuah@kernel.org> Cc: Jason Gunthorpe <jgg@ziepe.ca> Link: https://lkml.kernel.org/r/20200915012901.1655280-3-jhubbard@nvidia.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
|
John Hubbard
|
efc9511cec |
selftests/vm: fix false build success on the second and later attempts
Patch series "selftests/vm: fix some minor aggravating factors in the Makefile".
This fixes a couple of minor aggravating factors that I ran across while
trying to do some changes in selftests/vm. These are simple things, but
like most things with GNU Make, it's rarely obvious what's wrong until you
understand *the entire Makefile and all of its includes*.
So while there is, of course, joy in learning those details, I thought I'd
fix these little things, so as to allow others to skip out on the Joy if
they so choose. :)
First of all, if you have an item (let's choose userfaultfd for an
example) that fails to build, you might do this:
$ make -j32
# ...you observe a failed item in the threaded output
# OK, let's get a closer look
$ make
# ...but now the build quietly "succeeds".
That's what Patch 0001 fixes.
Second, if you instead attempt this approach for your closer look (a casual
mistake, as it's not supported):
$ make userfaultfd
# ...userfaultfd fails to link, due to incomplete LDLIBS
That's what Patch 0002 fixes.
This patch (of 2):
If one or more of these selftest fail to build, then after the first
failure, subsequent invocations of "make" will make it appear that there
are no build failures, after all.
That's because the failed build products remain, with up-to-date
timestamps, thus tricking Make (and you!) into believing that there's
nothing else to build.
Fix this by telling Make to delete targets that didn't completely
succeed.
Signed-off-by: John Hubbard <jhubbard@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Link: https://lkml.kernel.org/r/20200915012901.1655280-1-jhubbard@nvidia.com
Link: https://lkml.kernel.org/r/20200915012901.1655280-2-jhubbard@nvidia.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
||
|
Barry Song
|
657d4f7996 |
mm/gup_benchmark: use pin_user_pages for FOLL_LONGTERM flag
According to Documentation/core-api/pin_user_pages.rst, FOLL_PIN is a prerequisite to FOLL_LONGTERM. Another way of saying that is, FOLL_LONGTERM is a specific case, more restrictive case of FOLL_PIN. Almost all kernel modules are using pin_user_pages() with FOLL_LONGTERM, mm/gup_benchmark.c seems to the only exception in which FOLL_PIN is not a prerequisite to FOLL_LONGTERM. Signed-off-by: Barry Song <song.bao.hua@hisilicon.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: John Hubbard <jhubbard@nvidia.com> Cc: Jan Kara <jack@suse.cz> Cc: Jérôme Glisse <jglisse@redhat.com> Cc: "Matthew Wilcox (Oracle)" <willy@infradead.org> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Christoph Hellwig <hch@infradead.org> Cc: Dan Williams <dan.j.williams@intel.com> Cc: Dave Chinner <david@fromorbit.com> Cc: Jason Gunthorpe <jgg@ziepe.ca> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Michal Hocko <mhocko@suse.com> Cc: Mike Kravetz <mike.kravetz@oracle.com> Cc: Shuah Khan <shuah@kernel.org> Cc: Vlastimil Babka <vbabka@suse.cz> Link: http://lkml.kernel.org/r/20200815122056.29508-1-song.bao.hua@hisilicon.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
|
Dan Williams
|
60e93dc097 |
device-dax: add dis-contiguous resource support
Break the requirement that device-dax instances are physically contiguous. With this constraint removed it allows fragmented available capacity to be fully allocated. This capability is useful to mitigate the "noisy neighbor" problem with memory-side-cache management for virtual machines, or any other scenario where a platform address boundary also designates a performance boundary. For example a direct mapped memory side cache might rotate cache colors at 1GB boundaries. With dis-contiguous allocations a device-dax instance could be configured to contain only 1 cache color. It also satisfies Joao's use case (see link) for partitioning memory for exclusive guest access. It allows for a future potential mode where the host kernel need not allocate 'struct page' capacity up-front. Reported-by: Joao Martins <joao.m.martins@oracle.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Cc: Andy Lutomirski <luto@kernel.org> Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: Ard Biesheuvel <ardb@kernel.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Ben Skeggs <bskeggs@redhat.com> Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: Borislav Petkov <bp@alien8.de> Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com> Cc: Brice Goglin <Brice.Goglin@inria.fr> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: Dave Jiang <dave.jiang@intel.com> Cc: David Airlie <airlied@linux.ie> Cc: David Hildenbrand <david@redhat.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Hulk Robot <hulkci@huawei.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Ira Weiny <ira.weiny@intel.com> Cc: Jason Gunthorpe <jgg@mellanox.com> Cc: Jason Yan <yanaijie@huawei.com> Cc: Jeff Moyer <jmoyer@redhat.com> Cc: "Jérôme Glisse" <jglisse@redhat.com> Cc: Jia He <justin.he@arm.com> Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com> Cc: Juergen Gross <jgross@suse.com> Cc: kernel test robot <lkp@intel.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Mike Rapoport <rppt@linux.ibm.com> Cc: Paul Mackerras <paulus@ozlabs.org> Cc: Pavel Tatashin <pasha.tatashin@soleen.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com> Cc: Randy Dunlap <rdunlap@infradead.org> Cc: Stefano Stabellini <sstabellini@kernel.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Tom Lendacky <thomas.lendacky@amd.com> Cc: Vishal Verma <vishal.l.verma@intel.com> Cc: Vivek Goyal <vgoyal@redhat.com> Cc: Wei Yang <richard.weiyang@linux.alibaba.com> Cc: Will Deacon <will@kernel.org> Link: https://lore.kernel.org/lkml/20200110190313.17144-1-joao.m.martins@oracle.com/ Link: https://lkml.kernel.org/r/159643104304.4062302.16561669534797528660.stgit@dwillia2-desk3.amr.corp.intel.com Link: https://lkml.kernel.org/r/160106116875.30709.11456649969327399771.stgit@dwillia2-desk3.amr.corp.intel.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
|
Dan Williams
|
a4574f63ed |
mm/memremap_pages: convert to 'struct range'
The 'struct resource' in 'struct dev_pagemap' is only used for holding resource span information. The other fields, 'name', 'flags', 'desc', 'parent', 'sibling', and 'child' are all unused wasted space. This is in preparation for introducing a multi-range extension of devm_memremap_pages(). The bulk of this change is unwinding all the places internal to libnvdimm that used 'struct resource' unnecessarily, and replacing instances of 'struct dev_pagemap'.res with 'struct dev_pagemap'.range. P2PDMA had a minor usage of the resource flags field, but only to report failures with "%pR". That is replaced with an open coded print of the range. [dan.carpenter@oracle.com: mm/hmm/test: use after free in dmirror_allocate_chunk()] Link: https://lkml.kernel.org/r/20200926121402.GA7467@kadam Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> [xen] Cc: Paul Mackerras <paulus@ozlabs.org> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Vishal Verma <vishal.l.verma@intel.com> Cc: Vivek Goyal <vgoyal@redhat.com> Cc: Dave Jiang <dave.jiang@intel.com> Cc: Ben Skeggs <bskeggs@redhat.com> Cc: David Airlie <airlied@linux.ie> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: Ira Weiny <ira.weiny@intel.com> Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: Juergen Gross <jgross@suse.com> Cc: Stefano Stabellini <sstabellini@kernel.org> Cc: "Jérôme Glisse" <jglisse@redhat.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: Ard Biesheuvel <ardb@kernel.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Brice Goglin <Brice.Goglin@inria.fr> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: David Hildenbrand <david@redhat.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Hulk Robot <hulkci@huawei.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jason Gunthorpe <jgg@mellanox.com> Cc: Jason Yan <yanaijie@huawei.com> Cc: Jeff Moyer <jmoyer@redhat.com> Cc: Jia He <justin.he@arm.com> Cc: Joao Martins <joao.m.martins@oracle.com> Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com> Cc: kernel test robot <lkp@intel.com> Cc: Mike Rapoport <rppt@linux.ibm.com> Cc: Pavel Tatashin <pasha.tatashin@soleen.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com> Cc: Randy Dunlap <rdunlap@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Tom Lendacky <thomas.lendacky@amd.com> Cc: Wei Yang <richard.weiyang@linux.alibaba.com> Cc: Will Deacon <will@kernel.org> Link: https://lkml.kernel.org/r/159643103173.4062302.768998885691711532.stgit@dwillia2-desk3.amr.corp.intel.com Link: https://lkml.kernel.org/r/160106115761.30709.13539840236873663620.stgit@dwillia2-desk3.amr.corp.intel.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
|
Dan Williams
|
f5516ec5ef |
device-dax: make pgmap optional for instance creation
The passed in dev_pagemap is only required in the pmem case as the libnvdimm core may have reserved a vmem_altmap for dev_memremap_pages() to place the memmap in pmem directly. In the hmem case there is no agent reserving an altmap so it can all be handled by a core internal default. Pass the resource range via a new @range property of 'struct dev_dax_data'. Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Cc: David Hildenbrand <david@redhat.com> Cc: Vishal Verma <vishal.l.verma@intel.com> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: Pavel Tatashin <pasha.tatashin@soleen.com> Cc: Brice Goglin <Brice.Goglin@inria.fr> Cc: Dave Jiang <dave.jiang@intel.com> Cc: Ira Weiny <ira.weiny@intel.com> Cc: Jia He <justin.he@arm.com> Cc: Joao Martins <joao.m.martins@oracle.com> Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: Ard Biesheuvel <ardb@kernel.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Ben Skeggs <bskeggs@redhat.com> Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: Borislav Petkov <bp@alien8.de> Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: David Airlie <airlied@linux.ie> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Hulk Robot <hulkci@huawei.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jason Gunthorpe <jgg@mellanox.com> Cc: Jason Yan <yanaijie@huawei.com> Cc: Jeff Moyer <jmoyer@redhat.com> Cc: "Jérôme Glisse" <jglisse@redhat.com> Cc: Juergen Gross <jgross@suse.com> Cc: kernel test robot <lkp@intel.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Mike Rapoport <rppt@linux.ibm.com> Cc: Paul Mackerras <paulus@ozlabs.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com> Cc: Randy Dunlap <rdunlap@infradead.org> Cc: Stefano Stabellini <sstabellini@kernel.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Tom Lendacky <thomas.lendacky@amd.com> Cc: Vivek Goyal <vgoyal@redhat.com> Cc: Wei Yang <richard.weiyang@linux.alibaba.com> Cc: Will Deacon <will@kernel.org> Link: https://lkml.kernel.org/r/159643099958.4062302.10379230791041872886.stgit@dwillia2-desk3.amr.corp.intel.com Link: https://lkml.kernel.org/r/160106110513.30709.4303239334850606031.stgit@dwillia2-desk3.amr.corp.intel.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
|
Linus Torvalds
|
8b05418b25 |
seccomp updates for v5.10-rc1
- heavily refactor seccomp selftests (and clone3 selftests dependency) to
fix powerpc (Kees Cook, Thadeu Lima de Souza Cascardo)
- fix style issue in selftests (Zou Wei)
- upgrade "unknown action" from KILL_THREAD to KILL_PROCESS (Rich Felker)
- replace task_pt_regs(current) with current_pt_regs() (Denis Efremov)
- fix corner-case race in USER_NOTIF (Jann Horn)
- make CONFIG_SECCOMP no longer per-arch (YiFei Zhu)
-----BEGIN PGP SIGNATURE-----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=a4u2
-----END PGP SIGNATURE-----
Merge tag 'seccomp-v5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull seccomp updates from Kees Cook:
"The bulk of the changes are with the seccomp selftests to accommodate
some powerpc-specific behavioral characteristics. Additional cleanups,
fixes, and improvements are also included:
- heavily refactor seccomp selftests (and clone3 selftests
dependency) to fix powerpc (Kees Cook, Thadeu Lima de Souza
Cascardo)
- fix style issue in selftests (Zou Wei)
- upgrade "unknown action" from KILL_THREAD to KILL_PROCESS (Rich
Felker)
- replace task_pt_regs(current) with current_pt_regs() (Denis
Efremov)
- fix corner-case race in USER_NOTIF (Jann Horn)
- make CONFIG_SECCOMP no longer per-arch (YiFei Zhu)"
* tag 'seccomp-v5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: (23 commits)
seccomp: Make duplicate listener detection non-racy
seccomp: Move config option SECCOMP to arch/Kconfig
selftests/clone3: Avoid OS-defined clone_args
selftests/seccomp: powerpc: Set syscall return during ptrace syscall exit
selftests/seccomp: Allow syscall nr and ret value to be set separately
selftests/seccomp: Record syscall during ptrace entry
selftests/seccomp: powerpc: Fix seccomp return value testing
selftests/seccomp: Remove SYSCALL_NUM_RET_SHARE_REG in favor of SYSCALL_RET_SET
selftests/seccomp: Avoid redundant register flushes
selftests/seccomp: Convert REGSET calls into ARCH_GETREG/ARCH_SETREG
selftests/seccomp: Convert HAVE_GETREG into ARCH_GETREG/ARCH_SETREG
selftests/seccomp: Remove syscall setting #ifdefs
selftests/seccomp: mips: Remove O32-specific macro
selftests/seccomp: arm64: Define SYSCALL_NUM_SET macro
selftests/seccomp: arm: Define SYSCALL_NUM_SET macro
selftests/seccomp: mips: Define SYSCALL_NUM_SET macro
selftests/seccomp: Provide generic syscall setting macro
selftests/seccomp: Refactor arch register macros to avoid xtensa special case
selftests/seccomp: Use __NR_mknodat instead of __NR_mknod
selftests/seccomp: Use bitwise instead of arithmetic operator for flags
...
|
||
|
Linus Torvalds
|
3ad11d7ac8 |
block-5.10-2020-10-12
-----BEGIN PGP SIGNATURE----- iQJEBAABCAAuFiEEwPw5LcreJtl1+l5K99NY+ylx4KYFAl+EWUgQHGF4Ym9lQGtl cm5lbC5kawAKCRD301j7KXHgpnoxEADCVSNBRkpV0OVkOEC3wf8EGhXhk01Jnjtl u5Mg2V55hcgJ0thQxBV/V28XyqmsEBrmAVi0Yf8Vr9Qbq4Ze08Wae4ChS4rEOyh1 jTcGYWx5aJB3ChLvV/HI0nWQ3bkj03mMrL3SW8rhhf5DTyKHsVeTenpx42Qu/FKf fRzi09FSr3Pjd0B+EX6gunwJnlyXQC5Fa4AA0GhnXJzAznANXxHkkcXu8a6Yw75x e28CfhIBliORsK8sRHLoUnPpeTe1vtxCBhBMsE+gJAj9ZUOWMzvNFIPP4FvfawDy 6cCQo2m1azJ/IdZZCDjFUWyjh+wxdKMp+NNryEcoV+VlqIoc3n98rFwrSL+GIq5Z WVwEwq+AcwoMCsD29Lu1ytL2PQ/RVqcJP5UheMrbL4vzefNfJFumQVZLIcX0k943 8dFL2QHL+H/hM9Dx5y5rjeiWkAlq75v4xPKVjh/DHb4nehddCqn/+DD5HDhNANHf c1kmmEuYhvLpIaC4DHjE6DwLh8TPKahJjwsGuBOTr7D93NUQD+OOWsIhX6mNISIl FFhP8cd0/ZZVV//9j+q+5B4BaJsT+ZtwmrelKFnPdwPSnh+3iu8zPRRWO+8P8fRC YvddxuJAmE6BLmsAYrdz6Xb/wqfyV44cEiyivF0oBQfnhbtnXwDnkDWSfJD1bvCm ZwfpDh2+Tg== =LzyE -----END PGP SIGNATURE----- Merge tag 'block-5.10-2020-10-12' of git://git.kernel.dk/linux-block 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 ... |
||
|
Linus Torvalds
|
0486beaf88 |
GPIO bulk changes for the v5.10 kernel cycle:
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.
-----BEGIN PGP SIGNATURE-----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=8CE2
-----END PGP SIGNATURE-----
Merge tag 'gpio-v5.10-1' of 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
...
|
||
|
Rafael J. Wysocki
|
8be2362d10 |
Merge branches 'acpi-extlog', 'acpi-memhotplug', 'acpi-button', 'acpi-tools' and 'acpi-pci'
* acpi-extlog: ACPI / extlog: Check for RDMSR failure * acpi-memhotplug: ACPI: memhotplug: Remove 'state' from struct acpi_memory_device * acpi-button: ACPI: button: fix handling lid state changes when input device closed * acpi-tools: tools/power/acpi: Serialize Makefile * acpi-pci: ACPI: PCI: update kernel-doc line comments |
||
|
Vasily Gorbik
|
ab0a40ea88 |
perf build: Allow nested externs to enable BUILD_BUG() usage
Currently the BUILD_BUG() macro is expanded to 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 would obviously 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>
Tested-by: Stephen Rothwell <sfr@canb.auug.org.au> # build tested
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/patch-1.thread-251403.git-2514037e9477.your-ad-here.call-01602244460-ext-7088@work.hours
|
||
|
Linus Torvalds
|
22230cd2c5 |
Merge branch 'compat.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull compat mount cleanups from Al Viro: "The last remnants of mount(2) compat buried by Christoph. Buried into NFS, that is. Generally I'm less enthusiastic about "let's use in_compat_syscall() deep in call chain" kind of approach than Christoph seems to be, but in this case it's warranted - that had been an NFS-specific wart, hopefully not to be repeated in any other filesystems (read: any new filesystem introducing non-text mount options will get NAKed even if it doesn't mess the layout up). IOW, not worth trying to grow an infrastructure that would avoid that use of in_compat_syscall()..." * 'compat.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: fs: remove compat_sys_mount fs,nfs: lift compat nfs4 mount data handling into the nfs code nfs: simplify nfs4_parse_monolithic |
||
|
Linus Torvalds
|
85ed13e78d |
Merge branch 'work.iov_iter' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull compat iovec cleanups from Al Viro:
"Christoph's series around import_iovec() and compat variant thereof"
* 'work.iov_iter' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
security/keys: remove compat_keyctl_instantiate_key_iov
mm: remove compat_process_vm_{readv,writev}
fs: remove compat_sys_vmsplice
fs: remove the compat readv/writev syscalls
fs: remove various compat readv/writev helpers
iov_iter: transparently handle compat iovecs in import_iovec
iov_iter: refactor rw_copy_check_uvector and import_iovec
iov_iter: move rw_copy_check_uvector() into lib/iov_iter.c
compat.h: fix a spelling error in <linux/compat.h>
|
||
|
Linus Torvalds
|
dd502a8107 |
This tree introduces static_call(), which is the idea of static_branch()
applied to indirect function calls. Remove a data load (indirection) by
modifying the text.
They give the flexibility of function pointers, but with better
performance. (This is especially important for cases where
retpolines would otherwise be used, as retpolines can be pretty
slow.)
API overview:
DECLARE_STATIC_CALL(name, func);
DEFINE_STATIC_CALL(name, func);
DEFINE_STATIC_CALL_NULL(name, typename);
static_call(name)(args...);
static_call_cond(name)(args...);
static_call_update(name, func);
x86 is supported via text patching, otherwise basic indirect calls are used,
with function pointers.
There's a second variant using inline code patching, inspired by jump-labels,
implemented on x86 as well.
The new APIs are utilized in the x86 perf code, a heavy user of function pointers,
where static calls speed up the PMU handler by 4.2% (!).
The generic implementation is not really excercised on other architectures,
outside of the trivial test_static_call_init() self-test.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
-----BEGIN PGP SIGNATURE-----
iQJFBAABCgAvFiEEBpT5eoXrXCwVQwEKEnMQ0APhK1gFAl+EfAQRHG1pbmdvQGtl
cm5lbC5vcmcACgkQEnMQ0APhK1iEAw//divHeVCJnHhV+YBbuI9ROUsERkzu8VhK
O1DEmW68Fvj7pszT8NZsMjtkt97ZtxDRK7aCJiiup0eItG9qCJ8lpCLb84ZbizHV
HhCbhBLrpxSvTrWlQnkgP1OkPAbtoryIjVlZzWhjye2MY8UEbVnZWyviBolbAAxH
Fk1Yi56fIMu19GO+9Ohzy9E2VDnVEH1iMx5YWoLD2H88Qbq/yEMP+U2tIj8hIVKT
Y/jdogihNXRIau6QB+YPfDPisdty+RHxfU7zct4Rv8cFF5ylglZB5fD34C3sUQF2
WqsaYz7zjUj9f02F8pw8hIaAT7InzArPhlNVITxf2oMfmdrNqBptnSCddZqCJLvv
oDGew21k50Zcbqkv9amclpxXH5tTpRvJeqit2pz/85GMeqBRuhzHUAkCpht5YA73
qJsHWS3z+qIxKi0tDbhDJswuwa51q5sgdUUwo1uCr3wT3DGDlqNhCAZBzX14dcty
0shDSbv13TCwqAcb7asPzEoPwE15cwa+x+viGEIL901pyZKyQYjs/abDU26It3BW
roWRkuVJZ9/QMdZJs1v7kaXw1L8YiKIDkBgke+xbfrDwEvvjudQkl2LUL66DB11j
RJU3GyxKClvdY06SSRh/H13fqZLNKh1JZ0nPEWSTJECDFN9zcDjrDrod/7PFOcpY
NAlawLoGG+s=
=JvpF
-----END PGP SIGNATURE-----
Merge tag 'core-static_call-2020-10-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull static call support from Ingo Molnar:
"This introduces static_call(), which is the idea of static_branch()
applied to indirect function calls. Remove a data load (indirection)
by modifying the text.
They give the flexibility of function pointers, but with better
performance. (This is especially important for cases where retpolines
would otherwise be used, as retpolines can be pretty slow.)
API overview:
DECLARE_STATIC_CALL(name, func);
DEFINE_STATIC_CALL(name, func);
DEFINE_STATIC_CALL_NULL(name, typename);
static_call(name)(args...);
static_call_cond(name)(args...);
static_call_update(name, func);
x86 is supported via text patching, otherwise basic indirect calls are
used, with function pointers.
There's a second variant using inline code patching, inspired by
jump-labels, implemented on x86 as well.
The new APIs are utilized in the x86 perf code, a heavy user of
function pointers, where static calls speed up the PMU handler by
4.2% (!).
The generic implementation is not really excercised on other
architectures, outside of the trivial test_static_call_init()
self-test"
* tag 'core-static_call-2020-10-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (21 commits)
static_call: Fix return type of static_call_init
tracepoint: Fix out of sync data passing by static caller
tracepoint: Fix overly long tracepoint names
x86/perf, static_call: Optimize x86_pmu methods
tracepoint: Optimize using static_call()
static_call: Allow early init
static_call: Add some validation
static_call: Handle tail-calls
static_call: Add static_call_cond()
x86/alternatives: Teach text_poke_bp() to emulate RET
static_call: Add simple self-test for static calls
x86/static_call: Add inline static call implementation for x86-64
x86/static_call: Add out-of-line static call implementation
static_call: Avoid kprobes on inline static_call()s
static_call: Add inline static call infrastructure
static_call: Add basic static call infrastructure
compiler.h: Make __ADDRESSABLE() symbol truly unique
jump_label,module: Fix module lifetime for __jump_label_mod_text_reserved()
module: Properly propagate MODULE_STATE_COMING failure
module: Fix up module_notifier return values
...
|
||
|
Linus Torvalds
|
ed016af52e |
These are the locking updates for v5.10:
- Add deadlock detection for recursive read-locks. The rationale is outlined
in:
|
||
|
Linus Torvalds
|
edaa5ddf38 |
Scheduler changes for v5.10:
- Reorganize & clean up the SD* flags definitions and add a bunch
of sanity checks. These new checks caught quite a few bugs or at
least inconsistencies, resulting in another set of patches.
- Rseq updates, add MEMBARRIER_CMD_PRIVATE_EXPEDITED_RSEQ
- Add a new tracepoint to improve CPU capacity tracking
- Improve overloaded SMP system load-balancing behavior
- Tweak SMT balancing
- Energy-aware scheduling updates
- NUMA balancing improvements
- Deadline scheduler fixes and improvements
- CPU isolation fixes
- Misc cleanups, simplifications and smaller optimizations.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
-----BEGIN PGP SIGNATURE-----
iQJFBAABCgAvFiEEBpT5eoXrXCwVQwEKEnMQ0APhK1gFAl+EWRERHG1pbmdvQGtl
cm5lbC5vcmcACgkQEnMQ0APhK1hV8A/7BB0nt/zYVZ8Z3Di8V0b9hMtr0d1xtRM5
ZAvg4hcZl/fVgobFndxBw6KdlK8lSce9Mcq+bTTWeD46CS13cK5Vrpiaf7x7Q00P
m8YHeYEH13ME0pbBrhDoRCR4XzfXukzjkUl7LiyrTekAvRUtFikJ/uKl8MeJtYGZ
gANEkadqforxUW0v45iUEGepmCWAl8hSlSMb2mDKsVhw4DFMD+px0EBmmA0VDqjE
e0rkh6dEoUVNqlic2KoaXULld1rLg1xiaOcLUbTAXnucfhmuv5p/H11AC4ABuf+s
7d0zLrLEfZrcLJkthYxfMHs7DYMtARiQM9Db/a5hAq9Af4Z2bvvVAaHt3gCGvkV1
llB6BB2yWCki9Qv7oiGOAhANnyJHG/cU4r6WwMuHdlYi4dFT/iN5qkOMUL1IrDgi
a6ZzvECChXBeisQXHSlMd8Y5O+j0gRvDR7E18z2q0/PlmO8PGJq4w34mEWveWIg3
LaVF16bmvaARuNFJTQH/zaHhjqVQANSMx5OIv9swp0OkwvQkw21ICYHG0YxfzWCr
oa/FESEpOL9XdYp8UwMPI0bmVIsEfx79pmDMF3zInYTpJpwMUhV2yjHE8uYVMqEf
7U8rZv7gdbZ2us38Gjf2l73hY+recp/GrgZKnk0R98OUeMk1l/iVP6dwco6ITUV5
czGmKlIB1ec=
=bXy6
-----END PGP SIGNATURE-----
Merge tag 'sched-core-2020-10-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler updates from Ingo Molnar:
- reorganize & clean up the SD* flags definitions and add a bunch of
sanity checks. These new checks caught quite a few bugs or at least
inconsistencies, resulting in another set of patches.
- rseq updates, add MEMBARRIER_CMD_PRIVATE_EXPEDITED_RSEQ
- add a new tracepoint to improve CPU capacity tracking
- improve overloaded SMP system load-balancing behavior
- tweak SMT balancing
- energy-aware scheduling updates
- NUMA balancing improvements
- deadline scheduler fixes and improvements
- CPU isolation fixes
- misc cleanups, simplifications and smaller optimizations
* tag 'sched-core-2020-10-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (42 commits)
sched/deadline: Unthrottle PI boosted threads while enqueuing
sched/debug: Add new tracepoint to track cpu_capacity
sched/fair: Tweak pick_next_entity()
rseq/selftests: Test MEMBARRIER_CMD_PRIVATE_EXPEDITED_RSEQ
rseq/selftests,x86_64: Add rseq_offset_deref_addv()
rseq/membarrier: Add MEMBARRIER_CMD_PRIVATE_EXPEDITED_RSEQ
sched/fair: Use dst group while checking imbalance for NUMA balancer
sched/fair: Reduce busy load balance interval
sched/fair: Minimize concurrent LBs between domain level
sched/fair: Reduce minimal imbalance threshold
sched/fair: Relax constraint on task's load during load balance
sched/fair: Remove the force parameter of update_tg_load_avg()
sched/fair: Fix wrong cpu selecting from isolated domain
sched: Remove unused inline function uclamp_bucket_base_value()
sched/rt: Disable RT_RUNTIME_SHARE by default
sched/deadline: Fix stale throttling on de-/boosted tasks
sched/numa: Use runnable_avg to classify node
sched/topology: Move sd_flag_debug out of #ifdef CONFIG_SYSCTL
MAINTAINERS: Add myself as SCHED_DEADLINE reviewer
sched/topology: Move SD_DEGENERATE_GROUPS_MASK out of linux/sched/topology.h
...
|
||
|
Linus Torvalds
|
87194efe7e |
* Misc minor cleanups and corrections to the fsgsbase code and
respective selftests. -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEzv7L6UO9uDPlPSfHEsHwGGHeVUoFAl+EMr8ACgkQEsHwGGHe VUpoBQ/+Pe7MaMbS7d+IATzhedKW7PNKcQr2g734rnZkz0BgG+1sBkCQPRAKBZoa SIvt3gURM3aEeD4Dp3am4nLElyhldZrlwKoGKGv6AYv2BpLPQM9PG0fHJGUyYBze ekKMdPu5YK0hYqoWctrY8h+qbExNdkfAvM7bJMFJMBqypVicm0n5wlgfZthGz0DU tkD34WZNE2GGAfsi/NNJ2H+hcZo8bQVrqW98bkgdzIA7+KI3cyZZ132VbKxb03tK A69C7+J4B20q/traWFlb4mTcFy/a1Txrt3cJXIv/Xer74gDMqNYcciGgnTJdhryY gzBmWNTxuQr1EC8DYJaxjlQbBp6VSAwhELlyc6UeRxLAViEpMxyPfBVMOYqraImc sZ8QKGgI02PggInN9yo4qCbtUWAGMCHV7HGGW8stVBrh1lia7o6Dy9jhO+nmTnzV EEe/vEoSsp/ydnkgFNjaRwjFLp+vDX2lAf513ZuZukpt+IGQ0nAO5phzgcZVAyH4 qzr9uXdM3j+NtlXZgLttNppWEvHxzIpkri3Ly46VUFYOqTuKYPmS8A7stEfqx3NO T8g38+dDirFfKCoJz8NJBUUs+1KXer8QmJvogfHx5fsZ01Q2qz6AmOmsmMfe7Wqm +C9mvZJOJnW/7NunGWGVsuAZJOPx6o2oivjVpxxOyl8AeQnE6fg= =itDm -----END PGP SIGNATURE----- Merge tag 'x86_fsgsbase_for_v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 fsgsbase updates from Borislav Petkov: "Misc minor cleanups and corrections to the fsgsbase code and respective selftests" * tag 'x86_fsgsbase_for_v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: selftests/x86/fsgsbase: Test PTRACE_PEEKUSER for GSBASE with invalid LDT GS selftests/x86/fsgsbase: Reap a forgotten child x86/fsgsbase: Replace static_cpu_has() with boot_cpu_has() x86/entry/64: Correct the comment over SAVE_AND_SET_GSBASE |
||
|
Linus Torvalds
|
ca1b66922a |
* Extend the recovery from MCE in kernel space also to processes which
encounter an MCE in kernel space but while copying from user memory by
sending them a SIGBUS on return to user space and umapping the faulty
memory, by Tony Luck and Youquan Song.
* memcpy_mcsafe() rework by splitting the functionality into
copy_mc_to_user() and copy_mc_to_kernel(). This, as a result, enables
support for new hardware which can recover from a machine check
encountered during a fast string copy and makes that the default and
lets the older hardware which does not support that advance recovery,
opt in to use the old, fragile, slow variant, by Dan Williams.
* New AMD hw enablement, by Yazen Ghannam and Akshay Gupta.
* Do not use MSR-tracing accessors in #MC context and flag any fault
while accessing MCA architectural MSRs as an architectural violation
with the hope that such hw/fw misdesigns are caught early during the hw
eval phase and they don't make it into production.
* Misc fixes, improvements and cleanups, as always.
-----BEGIN PGP SIGNATURE-----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=u1Wg
-----END PGP SIGNATURE-----
Merge tag 'ras_updates_for_v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull RAS updates from Borislav Petkov:
- Extend the recovery from MCE in kernel space also to processes which
encounter an MCE in kernel space but while copying from user memory
by sending them a SIGBUS on return to user space and umapping the
faulty memory, by Tony Luck and Youquan Song.
- memcpy_mcsafe() rework by splitting the functionality into
copy_mc_to_user() and copy_mc_to_kernel(). This, as a result, enables
support for new hardware which can recover from a machine check
encountered during a fast string copy and makes that the default and
lets the older hardware which does not support that advance recovery,
opt in to use the old, fragile, slow variant, by Dan Williams.
- New AMD hw enablement, by Yazen Ghannam and Akshay Gupta.
- Do not use MSR-tracing accessors in #MC context and flag any fault
while accessing MCA architectural MSRs as an architectural violation
with the hope that such hw/fw misdesigns are caught early during the
hw eval phase and they don't make it into production.
- Misc fixes, improvements and cleanups, as always.
* tag 'ras_updates_for_v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/mce: Allow for copy_mc_fragile symbol checksum to be generated
x86/mce: Decode a kernel instruction to determine if it is copying from user
x86/mce: Recover from poison found while copying from user space
x86/mce: Avoid tail copy when machine check terminated a copy from user
x86/mce: Add _ASM_EXTABLE_CPY for copy user access
x86/mce: Provide method to find out the type of an exception handler
x86/mce: Pass pointer to saved pt_regs to severity calculation routines
x86/copy_mc: Introduce copy_mc_enhanced_fast_string()
x86, powerpc: Rename memcpy_mcsafe() to copy_mc_to_{user, kernel}()
x86/mce: Drop AMD-specific "DEFERRED" case from Intel severity rule list
x86/mce: Add Skylake quirk for patrol scrub reported errors
RAS/CEC: Convert to DEFINE_SHOW_ATTRIBUTE()
x86/mce: Annotate mce_rd/wrmsrl() with noinstr
x86/mce/dev-mcelog: Do not update kflags on AMD systems
x86/mce: Stop mce_reign() from re-computing severity for every CPU
x86/mce: Make mce_rdmsrl() panic on an inaccessible MSR
x86/mce: Increase maximum number of banks to 64
x86/mce: Delay clearing IA32_MCG_STATUS to the end of do_machine_check()
x86/MCE/AMD, EDAC/mce_amd: Remove struct smca_hwid.xec_bitmap
RAS/CEC: Fix cec_init() prototype
|
||
|
Linus Torvalds
|
6734e20e39 |
arm64 updates for 5.10
- Userspace support for the Memory Tagging Extension introduced by Armv8.5.
Kernel support (via KASAN) is likely to follow in 5.11.
- Selftests for MTE, Pointer Authentication and FPSIMD/SVE context
switching.
- Fix and subsequent rewrite of our Spectre mitigations, including the
addition of support for PR_SPEC_DISABLE_NOEXEC.
- Support for the Armv8.3 Pointer Authentication enhancements.
- Support for ASID pinning, which is required when sharing page-tables with
the SMMU.
- MM updates, including treating flush_tlb_fix_spurious_fault() as a no-op.
- Perf/PMU driver updates, including addition of the ARM CMN PMU driver and
also support to handle CPU PMU IRQs as NMIs.
- Allow prefetchable PCI BARs to be exposed to userspace using normal
non-cacheable mappings.
- Implementation of ARCH_STACKWALK for unwinding.
- Improve reporting of unexpected kernel traps due to BPF JIT failure.
- Improve robustness of user-visible HWCAP strings and their corresponding
numerical constants.
- Removal of TEXT_OFFSET.
- Removal of some unused functions, parameters and prototypes.
- Removal of MPIDR-based topology detection in favour of firmware
description.
- Cleanups to handling of SVE and FPSIMD register state in preparation
for potential future optimisation of handling across syscalls.
- Cleanups to the SDEI driver in preparation for support in KVM.
- Miscellaneous cleanups and refactoring work.
-----BEGIN PGP SIGNATURE-----
iQFEBAABCgAuFiEEPxTL6PPUbjXGY88ct6xw3ITBYzQFAl+AUXMQHHdpbGxAa2Vy
bmVsLm9yZwAKCRC3rHDchMFjNFc1B/4q2Kabe+pPu7s1f58Q+OTaEfqcr3F1qh27
F1YpFZUYxg0GPfPsFrnbJpo5WKo7wdR9ceI9yF/GHjs7A/MSoQJis3pG6SlAd9c0
nMU5tCwhg9wfq6asJtl0/IPWem6cqqhdzC6m808DjeHuyi2CCJTt0vFWH3OeHEhG
cfmLfaSNXOXa/MjEkT8y1AXJ/8IpIpzkJeCRA1G5s18PXV9Kl5bafIo9iqyfKPLP
0rJljBmoWbzuCSMc81HmGUQI4+8KRp6HHhyZC/k0WEVgj3LiumT7am02bdjZlTnK
BeNDKQsv2Jk8pXP2SlrI3hIUTz0bM6I567FzJEokepvTUzZ+CVBi
=9J8H
-----END PGP SIGNATURE-----
Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 updates from Will Deacon:
"There's quite a lot of code here, but much of it is due to the
addition of a new PMU driver as well as some arm64-specific selftests
which is an area where we've traditionally been lagging a bit.
In terms of exciting features, this includes support for the Memory
Tagging Extension which narrowly missed 5.9, hopefully allowing
userspace to run with use-after-free detection in production on CPUs
that support it. Work is ongoing to integrate the feature with KASAN
for 5.11.
Another change that I'm excited about (assuming they get the hardware
right) is preparing the ASID allocator for sharing the CPU page-table
with the SMMU. Those changes will also come in via Joerg with the
IOMMU pull.
We do stray outside of our usual directories in a few places, mostly
due to core changes required by MTE. Although much of this has been
Acked, there were a couple of places where we unfortunately didn't get
any review feedback.
Other than that, we ran into a handful of minor conflicts in -next,
but nothing that should post any issues.
Summary:
- Userspace support for the Memory Tagging Extension introduced by
Armv8.5. Kernel support (via KASAN) is likely to follow in 5.11.
- Selftests for MTE, Pointer Authentication and FPSIMD/SVE context
switching.
- Fix and subsequent rewrite of our Spectre mitigations, including
the addition of support for PR_SPEC_DISABLE_NOEXEC.
- Support for the Armv8.3 Pointer Authentication enhancements.
- Support for ASID pinning, which is required when sharing
page-tables with the SMMU.
- MM updates, including treating flush_tlb_fix_spurious_fault() as a
no-op.
- Perf/PMU driver updates, including addition of the ARM CMN PMU
driver and also support to handle CPU PMU IRQs as NMIs.
- Allow prefetchable PCI BARs to be exposed to userspace using normal
non-cacheable mappings.
- Implementation of ARCH_STACKWALK for unwinding.
- Improve reporting of unexpected kernel traps due to BPF JIT
failure.
- Improve robustness of user-visible HWCAP strings and their
corresponding numerical constants.
- Removal of TEXT_OFFSET.
- Removal of some unused functions, parameters and prototypes.
- Removal of MPIDR-based topology detection in favour of firmware
description.
- Cleanups to handling of SVE and FPSIMD register state in
preparation for potential future optimisation of handling across
syscalls.
- Cleanups to the SDEI driver in preparation for support in KVM.
- Miscellaneous cleanups and refactoring work"
* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (148 commits)
Revert "arm64: initialize per-cpu offsets earlier"
arm64: random: Remove no longer needed prototypes
arm64: initialize per-cpu offsets earlier
kselftest/arm64: Check mte tagged user address in kernel
kselftest/arm64: Verify KSM page merge for MTE pages
kselftest/arm64: Verify all different mmap MTE options
kselftest/arm64: Check forked child mte memory accessibility
kselftest/arm64: Verify mte tag inclusion via prctl
kselftest/arm64: Add utilities and a test to validate mte memory
perf: arm-cmn: Fix conversion specifiers for node type
perf: arm-cmn: Fix unsigned comparison to less than zero
arm64: dbm: Invalidate local TLB when setting TCR_EL1.HD
arm64: mm: Make flush_tlb_fix_spurious_fault() a no-op
arm64: Add support for PR_SPEC_DISABLE_NOEXEC prctl() option
arm64: Pull in task_stack_page() to Spectre-v4 mitigation code
KVM: arm64: Allow patching EL2 vectors even with KASLR is not enabled
arm64: Get rid of arm64_ssbd_state
KVM: arm64: Convert ARCH_WORKAROUND_2 to arm64_get_spectre_v4_state()
KVM: arm64: Get rid of kvm_arm_have_ssbd()
KVM: arm64: Simplify handling of ARCH_WORKAROUND_2
...
|
||
|
Daniel Latypov
|
1abdd39f14 |
kunit: tool: fix display of make errors
CalledProcessError stores the output of the failed process as `bytes`, not a `str`. So when we log it on build error, the make output is all crammed into one line with "\n" instead of actually printing new lines. After this change, we get readable output with new lines, e.g. > CC lib/kunit/kunit-example-test.o > In file included from ../lib/kunit/test.c:9: > ../include/kunit/test.h:22:1: error: unknown type name ‘invalid_type_that_causes_compile’ > 22 | invalid_type_that_causes_compile errors; > | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > make[3]: *** [../scripts/Makefile.build:283: lib/kunit/test.o] Error 1 Secondly, trying to concat exceptions to strings will fail with > TypeError: can only concatenate str (not "OSError") to str so fix this with an explicit cast to str. Signed-off-by: Daniel Latypov <dlatypov@google.com> Reviewed-by: Brendan Higgins <brendanhiggins@google.com> Tested-by: Brendan Higgins <brendanhiggins@google.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org> |
||
|
Christian Brauner
|
01361b665a
|
tests: remove O_NONBLOCK before waiting for WSTOPPED
Naresh reported that selftests: pidfd: pidfd_wait hangs on linux next kernel on
x86_64, i386 and arm64 Juno-r2
These devices are using NFS mounted rootfs.
I have tested pidfd testcases independently and all test PASS.
The Hang or exit from test run noticed when run by run_kselftest.sh
pidfd_wait.c:208:wait_nonblock:Expected sys_waitid(P_PIDFD, pidfd,
&info, WSTOPPED, NULL) (-1) == 0 (0)
wait_nonblock: Test terminated by assertion
metadata:
git branch: master
git repo: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
git commit: e64997027d5f171148687e58b78c8b3c869a6158
git describe: next-20200922
make_kernelversion: 5.9.0-rc6
kernel-config:
http://snapshots.linaro.org/openembedded/lkft/lkft/sumo/intel-core2-32/lkft/linux-next/865/config
The reason for this is a simple race in the selftests, that I overlooked and
which is more likely to hit when there's a lot of processes running on the
system. Basically the child process hasn't SIGSTOPed itself yet but the parent
is already calling waitid() on a O_NONBLOCK pidfd. Since it doesn't find a
WSTOPPED process it returns -EAGAIN correctly.
The fix for this is to move the line where we're removing the O_NONBLOCK
property from the fd before the waitid() WSTOPPED call so we hang until the
child becomes stopped.
Fixes:
|
||
|
Ingo Molnar
|
2116d708b0 |
Merge branch 'lkmm' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into locking/core
Pull LKMM changes for v5.10 from Paul E. McKenney. Various documentation updates. Signed-off-by: Ingo Molnar <mingo@kernel.org> |
||
|
Ingo Molnar
|
d6c4c11348 |
Merge branch 'kcsan' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into locking/core
Pull KCSAN updates for v5.10 from Paul E. McKenney: - Improve kernel messages. - Be more permissive with bitops races under KCSAN_ASSUME_PLAIN_WRITES_ATOMIC=y. - Optimize debugfs stat counters. - Introduce the instrument_*read_write() annotations, to provide a finer description of certain ops - using KCSAN's compound instrumentation. Use them for atomic RNW and bitops, where appropriate. Doing this might find new races. (Depends on the compiler having tsan-compound-read-before-write=1 support.) - Support atomic built-ins, which will help certain architectures, such as s390. - Misc enhancements and smaller fixes. Signed-off-by: Ingo Molnar <mingo@kernel.org> |
||
|
Kees Cook
|
e953aeaa91 |
selftests/clone3: Avoid OS-defined clone_args
As the UAPI headers start to appear in distros, we need to avoid outdated versions of struct clone_args to be able to test modern features, named "struct __clone_args". Additionally update the struct size macro names to match UAPI names. Acked-by: Christian Brauner <christian.brauner@ubuntu.com> Link: https://lore.kernel.org/lkml/20200921075432.u4gis3s2o5qrsb5g@wittgenstein/ Signed-off-by: Kees Cook <keescook@chromium.org> |
||
|
Kees Cook
|
a39caac02f |
selftests/seccomp: powerpc: Set syscall return during ptrace syscall exit
Some archs (like powerpc) only support changing the return code during
syscall exit when ptrace is used. Test entry vs exit phases for which
portions of the syscall number and return values need to be set at which
different phases. For non-powerpc, all changes are made during ptrace
syscall entry, as before. For powerpc, the syscall number is changed at
ptrace syscall entry and the syscall return value is changed on ptrace
syscall exit.
Reported-by: Thadeu Lima de Souza Cascardo <cascardo@canonical.com>
Suggested-by: Thadeu Lima de Souza Cascardo <cascardo@canonical.com>
Link: https://lore.kernel.org/linux-kselftest/20200911181012.171027-1-cascardo@canonical.com/
Fixes:
|
||
|
Kees Cook
|
bef71f86b6 |
selftests/seccomp: Allow syscall nr and ret value to be set separately
In preparation for setting syscall nr and ret values separately, refactor the helpers to take a pointer to a value, so that a NULL can indicate "do not change this respective value". This is done to keep the regset read/write happening once and in one code path. Acked-by: Christian Brauner <christian.brauner@ubuntu.com> Link: https://lore.kernel.org/lkml/20200921075031.j4gruygeugkp2zwd@wittgenstein/ Signed-off-by: Kees Cook <keescook@chromium.org> |
||
|
Kees Cook
|
71c87fbe72 |
selftests/seccomp: Record syscall during ptrace entry
In preparation for performing actions during ptrace syscall exit, save the syscall number during ptrace syscall entry. Some architectures do no have the syscall number available during ptrace syscall exit. Suggested-by: Thadeu Lima de Souza Cascardo <cascardo@canonical.com> Link: https://lore.kernel.org/linux-kselftest/20200911181012.171027-1-cascardo@canonical.com/ Acked-by: Christian Brauner <christian.brauner@ubuntu.com> Link: https://lore.kernel.org/lkml/20200921074354.6shkt2e5yhzhj3sn@wittgenstein/ Signed-off-by: Kees Cook <keescook@chromium.org> |
||
|
Colin Ian King
|
465e490d29 |
ACPICA: Tree-wide: fix various typos and spelling mistakes
ACPICA commit 6648a6ac8410813bcfedb5c8345259dd155ea851 Fix spelling issues found using the codespell checker Link: https://github.com/acpica/acpica/commit/6648a6ac Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Erik Kaneda <erik.kaneda@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> |
||
|
Srinivas Pandruvada
|
e529412f32 |
tools/power/x86/intel-speed-select: Update version for v5.10
Update version for changes released with v5.10 kernel release. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> |
||
|
Jonathan Doman
|
7566616fb9 |
tools/power/x86/intel-speed-select: Fix missing base-freq core IDs
The reported base-freq high-priority-cpu-list was potentially omitting some cpus, due to incorrectly using a logical core count to constrain the size of a physical punit core ID mask. We may need to read both high and low PBF CORE_MASK values regardless of the logical core count. Signed-off-by: Jonathan Doman <jonathan.doman@intel.com> Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> |
||
|
Kees Cook
|
5da1918446 |
selftests/run_kselftest.sh: Make each test individually selectable
Currently with run_kselftest.sh there is no way to choose which test we could run. All the tests listed in kselftest-list.txt are all run every time. This patch enhanced the run_kselftest.sh to make the test collections (or tests) individually selectable. e.g.: $ ./run_kselftest.sh -c seccomp -t timers:posix_timers -t timers:nanosleep Additionally adds a way to list all known tests with "-l", usage with "-h", and perform a dry run without running tests with "-n". Co-developed-by: Hangbin Liu <liuhangbin@gmail.com> Signed-off-by: Hangbin Liu <liuhangbin@gmail.com> Signed-off-by: Kees Cook <keescook@chromium.org> Tested-by: Naresh Kamboju <naresh.kamboju@linaro.org> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org> |
||
|
Kees Cook
|
f0f0a5df4e |
selftests: Extract run_kselftest.sh and generate stand-alone test list
Instead of building a script on the fly (which just repeats the same
thing for each test collection), move the script out of the Makefile and
into run_kselftest.sh, which reads kselftest-list.txt.
Adjust the emit_tests target to report each test on a separate line so
that test running tools (e.g. LAVA) can easily remove individual
tests (for example, as seen in [1]).
[1]
|
||
|
Will Deacon
|
a82e4ef041 |
Merge branch 'for-next/late-arrivals' into for-next/core
Late patches for 5.10: MTE selftests, minor KCSAN preparation and removal of some unused prototypes. (Amit Daniel Kachhap and others) * for-next/late-arrivals: arm64: random: Remove no longer needed prototypes arm64: initialize per-cpu offsets earlier kselftest/arm64: Check mte tagged user address in kernel kselftest/arm64: Verify KSM page merge for MTE pages kselftest/arm64: Verify all different mmap MTE options kselftest/arm64: Check forked child mte memory accessibility kselftest/arm64: Verify mte tag inclusion via prctl kselftest/arm64: Add utilities and a test to validate mte memory |