#
c34e9ab9 |
| 05-Dec-2024 |
Takashi Iwai <tiwai@suse.de> |
Merge tag 'asoc-fix-v6.13-rc1' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Fixes for v6.13
A few small fixes for v6.13, all system specific - the biggest t
Merge tag 'asoc-fix-v6.13-rc1' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Fixes for v6.13
A few small fixes for v6.13, all system specific - the biggest thing is the fix for jack handling over suspend on some Intel laptops.
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Revision tags: v6.13-rc1 |
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#
4c797b11 |
| 18-Nov-2024 |
Linus Torvalds <torvalds@linux-foundation.org> |
Merge tag 'vfs-6.13.file' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull vfs file updates from Christian Brauner: "This contains changes the changes for files for this cycle:
- I
Merge tag 'vfs-6.13.file' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull vfs file updates from Christian Brauner: "This contains changes the changes for files for this cycle:
- Introduce a new reference counting mechanism for files.
As atomic_inc_not_zero() is implemented with a try_cmpxchg() loop it has O(N^2) behaviour under contention with N concurrent operations and it is in a hot path in __fget_files_rcu().
The rcuref infrastructures remedies this problem by using an unconditional increment relying on safe- and dead zones to make this work and requiring rcu protection for the data structure in question. This not just scales better it also introduces overflow protection.
However, in contrast to generic rcuref, files require a memory barrier and thus cannot rely on *_relaxed() atomic operations and also require to be built on atomic_long_t as having massive amounts of reference isn't unheard of even if it is just an attack.
This adds a file specific variant instead of making this a generic library.
This has been tested by various people and it gives consistent improvement up to 3-5% on workloads with loads of threads.
- Add a fastpath for find_next_zero_bit(). Skip 2-levels searching via find_next_zero_bit() when there is a free slot in the word that contains the next fd. This improves pts/blogbench-1.1.0 read by 8% and write by 4% on Intel ICX 160.
- Conditionally clear full_fds_bits since it's very likely that a bit in full_fds_bits has been cleared during __clear_open_fds(). This improves pts/blogbench-1.1.0 read up to 13%, and write up to 5% on Intel ICX 160.
- Get rid of all lookup_*_fdget_rcu() variants. They were used to lookup files without taking a reference count. That became invalid once files were switched to SLAB_TYPESAFE_BY_RCU and now we're always taking a reference count. Switch to an already existing helper and remove the legacy variants.
- Remove pointless includes of <linux/fdtable.h>.
- Avoid cmpxchg() in close_files() as nobody else has a reference to the files_struct at that point.
- Move close_range() into fs/file.c and fold __close_range() into it.
- Cleanup calling conventions of alloc_fdtable() and expand_files().
- Merge __{set,clear}_close_on_exec() into one.
- Make __set_open_fd() set cloexec as well instead of doing it in two separate steps"
* tag 'vfs-6.13.file' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: selftests: add file SLAB_TYPESAFE_BY_RCU recycling stressor fs: port files to file_ref fs: add file_ref expand_files(): simplify calling conventions make __set_open_fd() set cloexec state as well fs: protect backing files with rcu file.c: merge __{set,clear}_close_on_exec() alloc_fdtable(): change calling conventions. fs/file.c: add fast path in find_next_fd() fs/file.c: conditionally clear full_fds fs/file.c: remove sanity_check and add likely/unlikely in alloc_fd() move close_range(2) into fs/file.c, fold __close_range() into it close_files(): don't bother with xchg() remove pointless includes of <linux/fdtable.h> get rid of ...lookup...fdget_rcu() family
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Revision tags: v6.12, v6.12-rc7, v6.12-rc6, v6.12-rc5 |
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#
aab154a4 |
| 21-Oct-2024 |
Christian Brauner <brauner@kernel.org> |
selftests: add file SLAB_TYPESAFE_BY_RCU recycling stressor
Add a simple file stressor that lives directly in-tree. This will create a bunch of processes that each open 500 file descriptors and then
selftests: add file SLAB_TYPESAFE_BY_RCU recycling stressor
Add a simple file stressor that lives directly in-tree. This will create a bunch of processes that each open 500 file descriptors and then use close_range() to close them all.
Concurrently, other processes read /proc/<pid>/fd/ which rougly does
f = fget_task_next(p, &fd); if (!f) break; data.mode = f->f_mode; fput(f);
Which means that it'll try to get a reference to a file in another task's file descriptor table.
Under heavy file load it is increasingly likely that the other task will manage to close @file and @file will be recycled due to SLAB_TYPEAFE_BY_RCU concurrently. This will trigger various warnings in the file reference counting code.
Link: https://lore.kernel.org/r/20241021-vergab-streuen-924df15dceb9@brauner Signed-off-by: Christian Brauner <brauner@kernel.org>
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Revision tags: v6.12-rc4, v6.12-rc3, v6.12-rc2, v6.12-rc1, v6.11, v6.11-rc7, v6.11-rc6, v6.11-rc5, v6.11-rc4, v6.11-rc3, v6.11-rc2, v6.11-rc1, v6.10, v6.10-rc7, v6.10-rc6, v6.10-rc5, v6.10-rc4, v6.10-rc3, v6.10-rc2, v6.10-rc1, v6.9, v6.9-rc7, v6.9-rc6, v6.9-rc5, v6.9-rc4, v6.9-rc3, v6.9-rc2, v6.9-rc1, v6.8, v6.8-rc7, v6.8-rc6, v6.8-rc5, v6.8-rc4, v6.8-rc3, v6.8-rc2, v6.8-rc1, v6.7, v6.7-rc8, v6.7-rc7, v6.7-rc6, v6.7-rc5, v6.7-rc4, v6.7-rc3, v6.7-rc2, v6.7-rc1, v6.6, v6.6-rc7, v6.6-rc6, v6.6-rc5, v6.6-rc4, v6.6-rc3, v6.6-rc2, v6.6-rc1, v6.5, v6.5-rc7, v6.5-rc6, v6.5-rc5, v6.5-rc4, v6.5-rc3, v6.5-rc2, v6.5-rc1, v6.4, v6.4-rc7, v6.4-rc6, v6.4-rc5, v6.4-rc4, v6.4-rc3, v6.4-rc2, v6.4-rc1, v6.3, v6.3-rc7, v6.3-rc6, v6.3-rc5, v6.3-rc4, v6.3-rc3, v6.3-rc2, v6.3-rc1, v6.2, v6.2-rc8, v6.2-rc7, v6.2-rc6, v6.2-rc5, v6.2-rc4, v6.2-rc3, v6.2-rc2, v6.2-rc1, v6.1, v6.1-rc8, v6.1-rc7, v6.1-rc6, v6.1-rc5, v6.1-rc4, v6.1-rc3, v6.1-rc2, v6.1-rc1, v6.0, v6.0-rc7, v6.0-rc6, v6.0-rc5, v6.0-rc4, v6.0-rc3, v6.0-rc2, v6.0-rc1, v5.19, v5.19-rc8, v5.19-rc7, v5.19-rc6, v5.19-rc5, v5.19-rc4, v5.19-rc3, v5.19-rc2, v5.19-rc1, v5.18, v5.18-rc7, v5.18-rc6, v5.18-rc5, v5.18-rc4, v5.18-rc3, v5.18-rc2, v5.18-rc1, v5.17, v5.17-rc8, v5.17-rc7, v5.17-rc6, v5.17-rc5, v5.17-rc4, v5.17-rc3, v5.17-rc2, v5.17-rc1, v5.16, v5.16-rc8, v5.16-rc7, v5.16-rc6, v5.16-rc5, v5.16-rc4, v5.16-rc3, v5.16-rc2, v5.16-rc1, v5.15, v5.15-rc7, v5.15-rc6, v5.15-rc5, v5.15-rc4, v5.15-rc3, v5.15-rc2, v5.15-rc1, v5.14, v5.14-rc7, v5.14-rc6, v5.14-rc5, v5.14-rc4, v5.14-rc3, v5.14-rc2, v5.14-rc1, v5.13, v5.13-rc7, v5.13-rc6, v5.13-rc5, v5.13-rc4, v5.13-rc3, v5.13-rc2, v5.13-rc1, v5.12, v5.12-rc8, v5.12-rc7, v5.12-rc6, v5.12-rc5, v5.12-rc4, v5.12-rc3, v5.12-rc2, v5.12-rc1, v5.12-rc1-dontuse, v5.11, v5.11-rc7, v5.11-rc6, v5.11-rc5, v5.11-rc4, v5.11-rc3, v5.11-rc2, v5.11-rc1, v5.10, v5.10-rc7, v5.10-rc6, v5.10-rc5, v5.10-rc4, v5.10-rc3, v5.10-rc2, v5.10-rc1, v5.9, v5.9-rc8, v5.9-rc7, v5.9-rc6, v5.9-rc5, v5.9-rc4 |
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#
ead5d1f4 |
| 01-Sep-2020 |
Jiri Kosina <jkosina@suse.cz> |
Merge branch 'master' into for-next
Sync with Linus' branch in order to be able to apply fixups of more recent patches.
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Revision tags: v5.9-rc3, v5.9-rc2, v5.9-rc1 |
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#
9e823802 |
| 08-Aug-2020 |
Dmitry Torokhov <dmitry.torokhov@gmail.com> |
Merge branch 'next' into for-linus
Prepare input updates for 5.9 merge window.
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Revision tags: v5.8, v5.8-rc7 |
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9b031c86 |
| 22-Jul-2020 |
Dmitry Torokhov <dmitry.torokhov@gmail.com> |
Merge branch 'elan-i2c' into next
Bring in update to Elan touchpad driver to support newer touchpads with higher resolution.
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Revision tags: v5.8-rc6, v5.8-rc5, v5.8-rc4, v5.8-rc3, v5.8-rc2, v5.8-rc1 |
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#
16ba7e31 |
| 03-Jun-2020 |
Jiri Kosina <jkosina@suse.cz> |
Merge branches 'for-5.7/upstream-fixes', 'for-5.8/apple', 'for-5.8/asus', 'for-5.8/core', 'for-5.8/intel-ish', 'for-5.8/logitech', 'for-5.8/mcp2221' and 'for-5.8/multitouch' into for-linus
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#
d053cf0d |
| 01-Jun-2020 |
Petr Mladek <pmladek@suse.com> |
Merge branch 'for-5.8' into for-linus
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Revision tags: v5.7, v5.7-rc7 |
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#
1f422417 |
| 23-May-2020 |
Daniel Lezcano <daniel.lezcano@linaro.org> |
Merge branch 'timers/drivers/timer-ti' into timers/drivers/next
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Revision tags: v5.7-rc6 |
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#
4aef2ec9 |
| 13-May-2020 |
Paolo Bonzini <pbonzini@redhat.com> |
Merge branch 'kvm-amd-fixes' into HEAD
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#
68f0f269 |
| 11-May-2020 |
Thomas Gleixner <tglx@linutronix.de> |
Merge branch 'for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcu
Pull RCU updates from Paul McKenney:
1. Miscellaneous fixes. 2. kfree_rcu() updates.
Merge branch 'for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcu
Pull RCU updates from Paul McKenney:
1. Miscellaneous fixes. 2. kfree_rcu() updates. 3. Remove scheduler locking restriction 4. RCU-tasks update, including addition of RCU Tasks Trace for BPF use and RCU Tasks Rude. (This branch is on top of #3 due to overlap of changed code.) 5. RCU CPU stall warning updates. 6. Torture-test updates.
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Revision tags: v5.7-rc5, v5.7-rc4, v5.7-rc3 |
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#
4353dd3b |
| 25-Apr-2020 |
Ingo Molnar <mingo@kernel.org> |
Merge tag 'efi-next' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi into efi/core
Pull EFI changes for v5.8 from Ard Biesheuvel:
"- preliminary changes for RISC-V - add support for setti
Merge tag 'efi-next' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi into efi/core
Pull EFI changes for v5.8 from Ard Biesheuvel:
"- preliminary changes for RISC-V - add support for setting the resolution on the EFI framebuffer - simplify kernel image loading for arm64 - Move .bss into .data via the linker script instead of relying on symbol annotations. - Get rid of __pure getters to access global variables - Clean up the config table matching arrays"
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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#
36dbae99 |
| 24-Apr-2020 |
Takashi Iwai <tiwai@suse.de> |
Merge branch 'topic/nhlt' into for-next
Merge NHLT init cleanup.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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#
41d91ec3 |
| 22-Apr-2020 |
Mark Brown <broonie@kernel.org> |
Merge tag 'tegra-for-5.7-asoc' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into asoc-5.7
ASoC: tegra: Fixes for v5.7-rc3
This contains a couple of fixes that are needed to properly
Merge tag 'tegra-for-5.7-asoc' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into asoc-5.7
ASoC: tegra: Fixes for v5.7-rc3
This contains a couple of fixes that are needed to properly reconfigure the audio clocks on older Tegra devices.
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#
175ae3ad |
| 21-Apr-2020 |
Tony Lindgren <tony@atomide.com> |
Merge branch 'fixes-v5.7' into fixes
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#
3bda0386 |
| 21-Apr-2020 |
Paolo Bonzini <pbonzini@redhat.com> |
Merge tag 'kvm-s390-master-5.7-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux into kvm-master
KVM: s390: Fix for 5.7 and maintainer update
- Silence false positive lockdep warnin
Merge tag 'kvm-s390-master-5.7-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux into kvm-master
KVM: s390: Fix for 5.7 and maintainer update
- Silence false positive lockdep warning - add Claudio as reviewer
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Revision tags: v5.7-rc2 |
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#
08d99b2c |
| 17-Apr-2020 |
Thomas Zimmermann <tzimmermann@suse.de> |
Merge drm/drm-next into drm-misc-next
Backmerging required to pull topic/phy-compliance.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
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#
2b703bbd |
| 16-Apr-2020 |
Joonas Lahtinen <joonas.lahtinen@linux.intel.com> |
Merge drm/drm-next into drm-intel-next-queued
Backmerging in order to pull "topic/phy-compliance".
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
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#
a4721ced |
| 14-Apr-2020 |
Maxime Ripard <maxime@cerno.tech> |
Merge v5.7-rc1 into drm-misc-fixes
Start the new drm-misc-fixes cycle.
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
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#
3b02a051 |
| 13-Apr-2020 |
Ingo Molnar <mingo@kernel.org> |
Merge tag 'v5.7-rc1' into locking/kcsan, to resolve conflicts and refresh
Resolve these conflicts:
arch/x86/Kconfig arch/x86/kernel/Makefile
Do a minor "evil merge" to move the KCSAN entry up a
Merge tag 'v5.7-rc1' into locking/kcsan, to resolve conflicts and refresh
Resolve these conflicts:
arch/x86/Kconfig arch/x86/kernel/Makefile
Do a minor "evil merge" to move the KCSAN entry up a bit by a few lines in the Kconfig to reduce the probability of future conflicts.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Revision tags: v5.7-rc1 |
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#
ff2ae607 |
| 03-Apr-2020 |
Linus Torvalds <torvalds@linux-foundation.org> |
Merge tag 'spdx-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx
Pull SPDX updates from Greg KH: "Here are three SPDX patches for 5.7-rc1.
One fixes up the SPDX tag for a si
Merge tag 'spdx-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx
Pull SPDX updates from Greg KH: "Here are three SPDX patches for 5.7-rc1.
One fixes up the SPDX tag for a single driver, while the other two go through the tree and add SPDX tags for all of the .gitignore files as needed.
Nothing too complex, but you will get a merge conflict with your current tree, that should be trivial to handle (one file modified by two things, one file deleted.)
All three of these have been in linux-next for a while, with no reported issues other than the merge conflict"
* tag 'spdx-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx: ASoC: MT6660: make spdxcheck.py happy .gitignore: add SPDX License Identifier .gitignore: remove too obvious comments
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Revision tags: v5.6, v5.6-rc7, v5.6-rc6, v5.6-rc5 |
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#
d198b34f |
| 03-Mar-2020 |
Masahiro Yamada <masahiroy@kernel.org> |
.gitignore: add SPDX License Identifier
Add SPDX License Identifier to all .gitignore files.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfou
.gitignore: add SPDX License Identifier
Add SPDX License Identifier to all .gitignore files.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Revision tags: v5.6-rc4, v5.6-rc3, v5.6-rc2, v5.6-rc1, v5.5, v5.5-rc7, v5.5-rc6, v5.5-rc5, v5.5-rc4, v5.5-rc3, v5.5-rc2, v5.5-rc1, v5.4, v5.4-rc8, v5.4-rc7, v5.4-rc6, v5.4-rc5, v5.4-rc4, v5.4-rc3, v5.4-rc2, v5.4-rc1, v5.3, v5.3-rc8, v5.3-rc7, v5.3-rc6, v5.3-rc5, v5.3-rc4, v5.3-rc3, v5.3-rc2, v5.3-rc1, v5.2, v5.2-rc7, v5.2-rc6, v5.2-rc5, v5.2-rc4, v5.2-rc3, v5.2-rc2, v5.2-rc1, v5.1, v5.1-rc7, v5.1-rc6, v5.1-rc5, v5.1-rc4, v5.1-rc3, v5.1-rc2, v5.1-rc1, v5.0, v5.0-rc8, v5.0-rc7, v5.0-rc6, v5.0-rc5, v5.0-rc4, v5.0-rc3, v5.0-rc2, v5.0-rc1, v4.20, v4.20-rc7, v4.20-rc6, v4.20-rc5, v4.20-rc4, v4.20-rc3, v4.20-rc2, v4.20-rc1, v4.19, v4.19-rc8, v4.19-rc7, v4.19-rc6, v4.19-rc5, v4.19-rc4, v4.19-rc3, v4.19-rc2, v4.19-rc1, v4.18, v4.18-rc8, v4.18-rc7, v4.18-rc6, v4.18-rc5, v4.18-rc4, v4.18-rc3, v4.18-rc2, v4.18-rc1 |
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#
c13aca79 |
| 04-Jun-2018 |
Dmitry Torokhov <dmitry.torokhov@gmail.com> |
Merge branch 'next' into for-linus
Prepare input updates for 4.18 merge window.
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#
101cfc9f |
| 04-Jun-2018 |
Stephen Boyd <sboyd@kernel.org> |
Merge branches 'clk-warn', 'clk-core', 'clk-spear' and 'clk-qcom-msm8998' into clk-next
* clk-warn: clk: Print the clock name and warning cause
* clk-core: clk: Remove clk_init_cb typedef
* cl
Merge branches 'clk-warn', 'clk-core', 'clk-spear' and 'clk-qcom-msm8998' into clk-next
* clk-warn: clk: Print the clock name and warning cause
* clk-core: clk: Remove clk_init_cb typedef
* clk-spear: clk: spear: fix WDT clock definition on SPEAr600
* clk-qcom-msm8998: clk: qcom: Add MSM8998 Global Clock Control (GCC) driver
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Revision tags: v4.17, v4.17-rc7 |
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#
75445134 |
| 24-May-2018 |
Dmitry Torokhov <dmitry.torokhov@gmail.com> |
Merge tag 'v4.17-rc6' into next
Sync up with mainline to bring in Atmel controller changes for Caroline.
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