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2642 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Linus Torvalds
|
6207214a70 |
AFS fixes
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||
David Howells
|
366911cd76 |
afs: Fix directory entry size calculation
The number of dirent records used by an AFS directory entry should be
calculated using the assumption that there is a 16-byte name field in the
first block, rather than a 20-byte name field (which is actually the case).
This miscalculation is historic and effectively standard, so we have to use
it.
The calculation we need to use is:
1 + (((strlen(name) + 1) + 15) >> 5)
where we are adding one to the strlen() result to account for the NUL
termination.
Fix this by the following means:
(1) Create an inline function to do the calculation for a given name
length.
(2) Use the function to calculate the number of records used for a dirent
in afs_dir_iterate_block().
Use this to move the over-end check out of the loop since it only
needs to be done once.
Further use this to only go through the loop for the 2nd+ records
composing an entry. The only test there now is for if the record is
allocated - and we already checked the first block at the top of the
outer loop.
(3) Add a max name length check in afs_dir_iterate_block().
(4) Make afs_edit_dir_add() and afs_edit_dir_remove() use the function
from (1) to calculate the number of blocks rather than doing it
incorrectly themselves.
Fixes:
|
||
|
Linus Torvalds
|
771e7e4161 |
block-5.11-2020-12-23
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Merge tag 'block-5.11-2020-12-23' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
"A few stragglers in here, but mostly just straight fixes. In
particular:
- Set of rnbd fixes for issues around changes for the merge window
(Gioh, Jack, Md Haris Iqbal)
- iocost tracepoint addition (Baolin)
- Copyright/maintainers update (Christoph)
- Remove old blk-mq fast path CPU warning (Daniel)
- loop max_part fix (Josh)
- Remote IPI threaded IRQ fix (Sebastian)
- dasd stable fixes (Stefan)
- bcache merge window fixup and style fixup (Yi, Zheng)"
* tag 'block-5.11-2020-12-23' of git://git.kernel.dk/linux-block:
md/bcache: convert comma to semicolon
bcache:remove a superfluous check in register_bcache
block: update some copyrights
block: remove a pointless self-reference in block_dev.c
MAINTAINERS: add fs/block_dev.c to the block section
blk-mq: Don't complete on a remote CPU in force threaded mode
s390/dasd: fix list corruption of lcu list
s390/dasd: fix list corruption of pavgroup group list
s390/dasd: prevent inconsistent LCU device data
s390/dasd: fix hanging device offline processing
blk-iocost: Add iocg idle state tracepoint
nbd: Respect max_part for all partition scans
block/rnbd-clt: Does not request pdu to rtrs-clt
block/rnbd-clt: Dynamically allocate sglist for rnbd_iu
block/rnbd: Set write-back cache and fua same to the target device
block/rnbd: Fix typos
block/rnbd-srv: Protect dev session sysfs removal
block/rnbd-clt: Fix possible memleak
block/rnbd-clt: Get rid of warning regarding size argument in strlcpy
blk-mq: Remove 'running from the wrong CPU' warning
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||
|
Linus Torvalds
|
8653b778e4 |
The core framework got some nice improvements this time around. We gained the
ability to get struct clk pointers from a struct clk_hw so that clk providers can consume the clks they provide, if they need to do something like that. This has been a long missing part of the clk provider API that will help us move away from exposing a struct clk pointer in the struct clk_hw. Tracepoints are added for the clk_set_rate() "range" functions, similar to the tracepoints we already have for clk_set_rate() and we added a column to debugfs to help developers understand the hardware enable state of clks in case firmware or bootloader state is different than what is expected. Overall the core changes are mostly improving the clk driver writing experience. At the driver level, we have the usual collection of driver updates and new drivers for new SoCs. This time around the Qualcomm folks introduced a good handful of clk drivers for various parts of three or four SoCs. The SiFive folks added a new clk driver for their FU740 SoCs, coming in second on the diffstat and then Atmel AT91 and Amlogic SoCs had lots of work done after that for various new features. One last thing to note in the driver area is that the i.MX driver has gained a new binding to support SCU clks after being on the list for many months. It uses a two cell binding which is sort of rare in clk DT bindings. Beyond that we have the usual set of driver fixes and tweaks that come from more testing and finding out that some configuration was wrong or that a driver could support being built as a module. Core: - Add some trace points for clk_set_rate() "range" functions - Add hardware enable information to clk_summary debugfs - Replace clk-provider.h with of_clk.h when possible - Add devm variant of clk_notifier_register() - Add clk_hw_get_clk() to generate a struct clk from a struct clk_hw New Drivers: - Bindings for Canaan K210 SoC clks - Support for SiFive FU740 PRCI - Camera clks on Qualcomm SC7180 SoCs - GCC and RPMh clks on Qualcomm SDX55 SoCs - RPMh clks on Qualcomm SM8350 SoCs - LPASS clks on Qualcomm SM8250 SoCs Updates: - DVFS support for AT91 clk driver - Update git repo branch for Renesas clock drivers - Add camera (CSI) and video-in (VIN) clocks on Renesas R-Car V3U - Add RPC (QSPI/HyperFLASH) clocks on Renesas RZ/G2M, RZ/G2N, and RZ/G2E - Stop using __raw_*() I/O accessors in Renesas clk drivers - One more conversion of DT bindings to json-schema - Make i.MX clk-gate2 driver more flexible - New two cell binding for i.MX SCU clks - Drop of_match_ptr() in i.MX8 clk drivers - Add arch dependencies for Rockchip clk drivers - Fix i2s on Rockchip rk3066 - Add MIPI DSI clks on Amlogic axg and g12 SoCs - Support modular builds of Amlogic clk drivers - Fix an Amlogic Video PLL clock dependency - Samsung Kconfig dependencies updates for better compile test coverage - Refactoring of the Samsung PLL clocks driver - Small Tegra driver cleanups - Minor fixes to Ingenic and VC5 clk drivers - Cleanup patches to remove unused variables and plug memory leaks -----BEGIN PGP SIGNATURE----- iQJFBAABCAAvFiEE9L57QeeUxqYDyoaDrQKIl8bklSUFAl/f/ycRHHNib3lkQGtl cm5lbC5vcmcACgkQrQKIl8bklSXjxg/7BJMFphpZmQb3iy/lZMYfgPh2yxZvrrBj zJ2i1mMru/C3BkXTx29HCJvj6/VC2HgGLL6fzfwe7oY3XVRT1Vxlsvka9vNZSNc2 UYNa8GUwR0mSXDzp5KnzoAQfLwvSqWUIeT8WB+Z+CJ7WIAGWnXgBlqsf/d/mr9hg JoAh+ROpbksL6hs61WJSm+7/Yu6efS0Yj0zzLZOINFWvDIOJ+Rp4g1u+qGH9tZyO I2Bik75Sc8hqvLUP5SVzI/1H4yLB0On+ADgVRwjvrKPVX56alYquOUMsU+sy4SeY ONQBki3vV5gtJHG1qvkwTC5/Yw20eUsrmrc7PNECvb1zo5Tp4QuOAR5nHCb4fg8u n7RRd1MktTAUAQxTzBaNYtix3Q19fjSR44C/1B6lKk6xkN+w4uYLi2GHrADy9rXa SwQVTKTGc8LjGywDaAOXdAyx2FMAtt1OvkTxZ238+aoHw5nQDHWKxu5TwYK6b5jG aEFzTCIEYlzRLqcZyGONSD0WXmQWyoNiPwJ3B7RDRfpg7dPESyKIB4MzGWiX9eDy lri/SoVH08c1sRf8AzIoi+CUNi8geTNAHHlJfiGznrv81ttVf3FioWyWLjr+SmBV rNxn35WxeDWoCZqtrLJlg5skVgmD8BRXLZTI9udPG8u6D7OdWdJBuMZ6EelO+OZg /n4w8tdo3cE= =Wt9O -----END PGP SIGNATURE----- Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux Pull clk updates from Stephen Boyd: "The core framework got some nice improvements this time around. We gained the ability to get struct clk pointers from a struct clk_hw so that clk providers can consume the clks they provide, if they need to do something like that. This has been a long missing part of the clk provider API that will help us move away from exposing a struct clk pointer in the struct clk_hw. Tracepoints are added for the clk_set_rate() "range" functions, similar to the tracepoints we already have for clk_set_rate() and we added a column to debugfs to help developers understand the hardware enable state of clks in case firmware or bootloader state is different than what is expected. Overall the core changes are mostly improving the clk driver writing experience. At the driver level, we have the usual collection of driver updates and new drivers for new SoCs. This time around the Qualcomm folks introduced a good handful of clk drivers for various parts of three or four SoCs. The SiFive folks added a new clk driver for their FU740 SoCs, coming in second on the diffstat and then Atmel AT91 and Amlogic SoCs had lots of work done after that for various new features. One last thing to note in the driver area is that the i.MX driver has gained a new binding to support SCU clks after being on the list for many months. It uses a two cell binding which is sort of rare in clk DT bindings. Beyond that we have the usual set of driver fixes and tweaks that come from more testing and finding out that some configuration was wrong or that a driver could support being built as a module. Summary: Core: - Add some trace points for clk_set_rate() "range" functions - Add hardware enable information to clk_summary debugfs - Replace clk-provider.h with of_clk.h when possible - Add devm variant of clk_notifier_register() - Add clk_hw_get_clk() to generate a struct clk from a struct clk_hw New Drivers: - Bindings for Canaan K210 SoC clks - Support for SiFive FU740 PRCI - Camera clks on Qualcomm SC7180 SoCs - GCC and RPMh clks on Qualcomm SDX55 SoCs - RPMh clks on Qualcomm SM8350 SoCs - LPASS clks on Qualcomm SM8250 SoCs Updates: - DVFS support for AT91 clk driver - Update git repo branch for Renesas clock drivers - Add camera (CSI) and video-in (VIN) clocks on Renesas R-Car V3U - Add RPC (QSPI/HyperFLASH) clocks on Renesas RZ/G2M, RZ/G2N, and RZ/G2E - Stop using __raw_*() I/O accessors in Renesas clk drivers - One more conversion of DT bindings to json-schema - Make i.MX clk-gate2 driver more flexible - New two cell binding for i.MX SCU clks - Drop of_match_ptr() in i.MX8 clk drivers - Add arch dependencies for Rockchip clk drivers - Fix i2s on Rockchip rk3066 - Add MIPI DSI clks on Amlogic axg and g12 SoCs - Support modular builds of Amlogic clk drivers - Fix an Amlogic Video PLL clock dependency - Samsung Kconfig dependencies updates for better compile test coverage - Refactoring of the Samsung PLL clocks driver - Small Tegra driver cleanups - Minor fixes to Ingenic and VC5 clk drivers - Cleanup patches to remove unused variables and plug memory leaks" * tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (134 commits) dt-binding: clock: Document canaan,k210-clk bindings dt-bindings: Add Canaan vendor prefix clk: vc5: Use "idt,voltage-microvolt" instead of "idt,voltage-microvolts" clk: ingenic: Fix divider calculation with div tables clk: sunxi-ng: Make sure divider tables have sentinel clk: s2mps11: Fix a resource leak in error handling paths in the probe function clk: mvebu: a3700: fix the XTAL MODE pin to MPP1_9 clk: si5351: Wait for bit clear after PLL reset clk: at91: sam9x60: remove atmel,osc-bypass support clk: at91: sama7g5: register cpu clock clk: at91: clk-master: re-factor master clock clk: at91: sama7g5: do not allow cpu pll to go higher than 1GHz clk: at91: sama7g5: decrease lower limit for MCK0 rate clk: at91: sama7g5: remove mck0 from parent list of other clocks clk: at91: clk-sam9x60-pll: allow runtime changes for pll clk: at91: sama7g5: add 5th divisor for mck0 layout and characteristics clk: at91: clk-master: add 5th divisor for mck master clk: at91: sama7g5: allow SYS and CPU PLLs to be exported and referenced in DT dt-bindings: clock: at91: add sama7g5 pll defines clk: at91: sama7g5: fix compilation error ... |
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Linus Torvalds
|
6a447b0e31 |
ARM:
* PSCI relay at EL2 when "protected KVM" is enabled * New exception injection code * Simplification of AArch32 system register handling * Fix PMU accesses when no PMU is enabled * Expose CSV3 on non-Meltdown hosts * Cache hierarchy discovery fixes * PV steal-time cleanups * Allow function pointers at EL2 * Various host EL2 entry cleanups * Simplification of the EL2 vector allocation s390: * memcg accouting for s390 specific parts of kvm and gmap * selftest for diag318 * new kvm_stat for when async_pf falls back to sync x86: * Tracepoints for the new pagetable code from 5.10 * Catch VFIO and KVM irqfd events before userspace * Reporting dirty pages to userspace with a ring buffer * SEV-ES host support * Nested VMX support for wait-for-SIPI activity state * New feature flag (AVX512 FP16) * New system ioctl to report Hyper-V-compatible paravirtualization features Generic: * Selftest improvements -----BEGIN PGP SIGNATURE----- iQFIBAABCAAyFiEE8TM4V0tmI4mGbHaCv/vSX3jHroMFAl/bdL4UHHBib256aW5p QHJlZGhhdC5jb20ACgkQv/vSX3jHroNgQQgAnTH6rhXa++Zd5F0EM2NwXwz3iEGb lOq1DZSGjs6Eekjn8AnrWbmVQr+CBCuGU9MrxpSSzNDK/awryo3NwepOWAZw9eqk BBCVwGBbJQx5YrdgkGC0pDq2sNzcpW/VVB3vFsmOxd9eHblnuKSIxEsCCXTtyqIt XrLpQ1UhvI4yu102fDNhuFw2EfpzXm+K0Lc0x6idSkdM/p7SyeOxiv8hD4aMr6+G bGUQuMl4edKZFOWFigzr8NovQAvDHZGrwfihu2cLRYKLhV97QuWVmafv/yYfXcz2 drr+wQCDNzDOXyANnssmviazrhOX0QmTAhbIXGGX/kTxYKcfPi83ZLoI3A== =ISud -----END PGP SIGNATURE----- Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm Pull KVM updates from Paolo Bonzini: "Much x86 work was pushed out to 5.12, but ARM more than made up for it. ARM: - PSCI relay at EL2 when "protected KVM" is enabled - New exception injection code - Simplification of AArch32 system register handling - Fix PMU accesses when no PMU is enabled - Expose CSV3 on non-Meltdown hosts - Cache hierarchy discovery fixes - PV steal-time cleanups - Allow function pointers at EL2 - Various host EL2 entry cleanups - Simplification of the EL2 vector allocation s390: - memcg accouting for s390 specific parts of kvm and gmap - selftest for diag318 - new kvm_stat for when async_pf falls back to sync x86: - Tracepoints for the new pagetable code from 5.10 - Catch VFIO and KVM irqfd events before userspace - Reporting dirty pages to userspace with a ring buffer - SEV-ES host support - Nested VMX support for wait-for-SIPI activity state - New feature flag (AVX512 FP16) - New system ioctl to report Hyper-V-compatible paravirtualization features Generic: - Selftest improvements" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (171 commits) KVM: SVM: fix 32-bit compilation KVM: SVM: Add AP_JUMP_TABLE support in prep for AP booting KVM: SVM: Provide support to launch and run an SEV-ES guest KVM: SVM: Provide an updated VMRUN invocation for SEV-ES guests KVM: SVM: Provide support for SEV-ES vCPU loading KVM: SVM: Provide support for SEV-ES vCPU creation/loading KVM: SVM: Update ASID allocation to support SEV-ES guests KVM: SVM: Set the encryption mask for the SVM host save area KVM: SVM: Add NMI support for an SEV-ES guest KVM: SVM: Guest FPU state save/restore not needed for SEV-ES guest KVM: SVM: Do not report support for SMM for an SEV-ES guest KVM: x86: Update __get_sregs() / __set_sregs() to support SEV-ES KVM: SVM: Add support for CR8 write traps for an SEV-ES guest KVM: SVM: Add support for CR4 write traps for an SEV-ES guest KVM: SVM: Add support for CR0 write traps for an SEV-ES guest KVM: SVM: Add support for EFER write traps for an SEV-ES guest KVM: SVM: Support string IO operations for an SEV-ES guest KVM: SVM: Support MMIO for an SEV-ES guest KVM: SVM: Create trace events for VMGEXIT MSR protocol processing KVM: SVM: Create trace events for VMGEXIT processing ... |
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|
Linus Torvalds
|
74f602dc96 |
NFS client updates for Linux 5.11
Highlights include:
Features:
- NFSv3: Add emulation of lookupp() to improve open_by_filehandle()
support.
- A series of patches to improve readdir performance, particularly with
large directories.
- Basic support for using NFS/RDMA with the pNFS files and flexfiles
drivers.
- Micro-optimisations for RDMA.
- RDMA tracing improvements.
Bugfixes:
- Fix a long standing bug with xs_read_xdr_buf() when receiving partial
pages (Dan Aloni).
- Various fixes for getxattr and listxattr, when used over non-TCP
transports.
- Fixes for containerised NFS from Sargun Dhillon.
- switch nfsiod to be an UNBOUND workqueue (Neil Brown).
- READDIR should not ask for security label information if there is no
LSM policy. (Olga Kornievskaia)
- Avoid using interval-based rebinding with TCP in lockd (Calum Mackay).
- A series of RPC and NFS layer fixes to support the NFSv4.2 READ_PLUS code.
- A couple of fixes for pnfs/flexfiles read failover
Cleanups:
- Various cleanups for the SUNRPC xdr code in conjunction with the
READ_PLUS fixes.
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Merge tag 'nfs-for-5.11-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
Pull NFS client updates from Trond Myklebust:
"Highlights include:
Features:
- NFSv3: Add emulation of lookupp() to improve open_by_filehandle()
support
- A series of patches to improve readdir performance, particularly
with large directories
- Basic support for using NFS/RDMA with the pNFS files and flexfiles
drivers
- Micro-optimisations for RDMA
- RDMA tracing improvements
Bugfixes:
- Fix a long standing bug with xs_read_xdr_buf() when receiving
partial pages (Dan Aloni)
- Various fixes for getxattr and listxattr, when used over non-TCP
transports
- Fixes for containerised NFS from Sargun Dhillon
- switch nfsiod to be an UNBOUND workqueue (Neil Brown)
- READDIR should not ask for security label information if there is
no LSM policy (Olga Kornievskaia)
- Avoid using interval-based rebinding with TCP in lockd (Calum
Mackay)
- A series of RPC and NFS layer fixes to support the NFSv4.2
READ_PLUS code
- A couple of fixes for pnfs/flexfiles read failover
Cleanups:
- Various cleanups for the SUNRPC xdr code in conjunction with the
READ_PLUS fixes"
* tag 'nfs-for-5.11-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: (90 commits)
NFS/pNFS: Fix a typo in ff_layout_resend_pnfs_read()
pNFS/flexfiles: Avoid spurious layout returns in ff_layout_choose_ds_for_read
NFSv4/pnfs: Add tracing for the deviceid cache
fs/lockd: convert comma to semicolon
NFSv4.2: fix error return on memory allocation failure
NFSv4.2/pnfs: Don't use READ_PLUS with pNFS yet
NFSv4.2: Deal with potential READ_PLUS data extent buffer overflow
NFSv4.2: Don't error when exiting early on a READ_PLUS buffer overflow
NFSv4.2: Handle hole lengths that exceed the READ_PLUS read buffer
NFSv4.2: decode_read_plus_hole() needs to check the extent offset
NFSv4.2: decode_read_plus_data() must skip padding after data segment
NFSv4.2: Ensure we always reset the result->count in decode_read_plus()
SUNRPC: When expanding the buffer, we may need grow the sparse pages
SUNRPC: Cleanup - constify a number of xdr_buf helpers
SUNRPC: Clean up open coded setting of the xdr_stream 'nwords' field
SUNRPC: _copy_to/from_pages() now check for zero length
SUNRPC: Cleanup xdr_shrink_bufhead()
SUNRPC: Fix xdr_expand_hole()
SUNRPC: Fixes for xdr_align_data()
SUNRPC: _shift_data_left/right_pages should check the shift length
...
|
||
|
Linus Torvalds
|
ff49c86f27 |
f2fs-for-5.11-rc1
In this round, we've made more work into per-file compression support. For example, F2FS_IOC_GET|SET_COMPRESS_OPTION provides a way to change the algorithm or cluster size per file. F2FS_IOC_COMPRESS|DECOMPRESS_FILE provides a way to compress and decompress the existing normal files manually along with a new mount option, compress_mode=fs|user, which can control who compresses the data. Chao also added a checksum feature with a mount option so that we are able to detect any corrupted cluster. In addition, Daniel contributed casefolding with encryption patch, which will be used for Android devices. Enhancement: - add ioctls and mount option to manage per-file compression feature - support casefolding with encryption - support checksum for compressed cluster - avoid IO starvation by replacing mutex with rwsem - add sysfs, max_io_bytes, to control max bio size Bug fix: - fix use-after-free issue when compression and fsverity are enabled - fix consistency corruption during fault injection test - fix data offset for lseek - get rid of buffer_head which has 32bits limit in fiemap - fix some bugs in multi-partitions support - fix nat entry count calculation in shrinker - fix some stat information And, we've refactored some logics and fix minor bugs as well. -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEE00UqedjCtOrGVvQiQBSofoJIUNIFAl/a8ywACgkQQBSofoJI UNLa2RAAjK+6tOs+NuYx2w9SegghKxwCg4Mb362BMdaAGx6GzMqAkCiVdujuoz/r +wy8sdqO9QE7723ZDNsebNMLRnkNPHnpneSL2p6OsSLJrD3ORTELVRrzNlkemvnK rRHZyYnNJvQQnD4uU7ABvROKsIDw/nCfcFvzHmLIgEw8EHO0W4n6fTtBdTwXv1qi N3qXhGuQldonR9XICuGjzj7wh17n9ua6Mr12XX3Ok38giMcZb9KFBwgvlhl35cxt htEmUpxWD3NTSw6zJmV4VAiajpiIkW6QRQuVA1nzdLZK644gaJMhM1EUsOnZhfDl wX0ZtKoNkXxb0glD34O3aYqeHJ3tHWgPmmpVm9TECJP9A/X7kmEHgQYpH/eJ9I7d tk51Uz28Mz1RShXU4i5RyKZeeoNTLiVlqiC95E2cnq4C1tLOJyI00N9AinrLzvR+ fqUrAwCrBpiYX63mWKYwq7GWxWwp4+PY09kyIZxxJiWhTE/St0bRx2bQL8zA8C6J Rtxl+QWyQhkFbNu8fAukLFAhC6mqX/FKpXvUqRehBnHRvMWBiVZG0//eOPQLk71u qsdCgYuEVcg3itDQrZvmsjxi4Pb5E9mNr0s5oC4I2WvBPMheD4esSyG7cKDN0qfS 3FFHlRYLOvnjPMLnKTmZXjFvFyHR8mwsD4Z83MeSrqYnWC14tFY= =KneU -----END PGP SIGNATURE----- Merge tag 'f2fs-for-5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs Pull f2fs updates from Jaegeuk Kim: "In this round, we've made more work into per-file compression support. For example, F2FS_IOC_GET | SET_COMPRESS_OPTION provides a way to change the algorithm or cluster size per file. F2FS_IOC_COMPRESS | DECOMPRESS_FILE provides a way to compress and decompress the existing normal files manually. There is also a new mount option, compress_mode=fs|user, which can control who compresses the data. Chao also added a checksum feature with a mount option so that we are able to detect any corrupted cluster. In addition, Daniel contributed casefolding with encryption patch, which will be used for Android devices. Summary: Enhancements: - add ioctls and mount option to manage per-file compression feature - support casefolding with encryption - support checksum for compressed cluster - avoid IO starvation by replacing mutex with rwsem - add sysfs, max_io_bytes, to control max bio size Bug fixes: - fix use-after-free issue when compression and fsverity are enabled - fix consistency corruption during fault injection test - fix data offset for lseek - get rid of buffer_head which has 32bits limit in fiemap - fix some bugs in multi-partitions support - fix nat entry count calculation in shrinker - fix some stat information And, we've refactored some logics and fix minor bugs as well" * tag 'f2fs-for-5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (36 commits) f2fs: compress: fix compression chksum f2fs: fix shift-out-of-bounds in sanity_check_raw_super() f2fs: fix race of pending_pages in decompression f2fs: fix to account inline xattr correctly during recovery f2fs: inline: fix wrong inline inode stat f2fs: inline: correct comment in f2fs_recover_inline_data f2fs: don't check PAGE_SIZE again in sanity_check_raw_super() f2fs: convert to F2FS_*_INO macro f2fs: introduce max_io_bytes, a sysfs entry, to limit bio size f2fs: don't allow any writes on readonly mount f2fs: avoid race condition for shrinker count f2fs: add F2FS_IOC_DECOMPRESS_FILE and F2FS_IOC_COMPRESS_FILE f2fs: add compress_mode mount option f2fs: Remove unnecessary unlikely() f2fs: init dirty_secmap incorrectly f2fs: remove buffer_head which has 32bits limit f2fs: fix wrong block count instead of bytes f2fs: use new conversion functions between blks and bytes f2fs: rename logical_to_blk and blk_to_logical f2fs: fix kbytes written stat for multi-device case ... |
||
Baolin Wang
|
76efc1c770 |
blk-iocost: Add iocg idle state tracepoint
It will be helpful to trace the iocg's whole state, including active and idle state. And we can easily expand the original iocost_iocg_activate trace event to support a state trace class, including active and idle state tracing. Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Baolin Wang <baolin.wang@linux.alibaba.com> Signed-off-by: Jens Axboe <axboe@kernel.dk> |
||
Maxime Ripard
|
03813d9b7d |
clk: Trace clk_set_rate() "range" functions
The clk_set_rate "range" functions don't have any tracepoints even though it might be useful. Add some. Signed-off-by: Maxime Ripard <maxime@cerno.tech> Link: https://lore.kernel.org/r/20201207105050.2096917-1-maxime@cerno.tech [sboyd@kernel.org: Reword commit text] Signed-off-by: Stephen Boyd <sboyd@kernel.org> |
||
|
Linus Torvalds
|
60f7c503d9 |
SCSI misc on 20201216
This series consists of the usual driver updates (ufs, qla2xxx, smartpqi, target, zfcp, fnic, mpt3sas, ibmvfc) plus a load of cleanups, a major power management rework and a load of assorted minor updates. There are a few core updates (formatting fixes being the big one) but nothing major this cycle. Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com> -----BEGIN PGP SIGNATURE----- iJwEABMIAEQWIQTnYEDbdso9F2cI+arnQslM7pishQUCX9o0KSYcamFtZXMuYm90 dG9tbGV5QGhhbnNlbnBhcnRuZXJzaGlwLmNvbQAKCRDnQslM7pishbOZAP9D5NTN J7dJUo2MIMy84YBu+d9ag7yLlNiRWVY2yw5vHwD/Z7JjAVLwz/tzmyjU9//o2J6w hwhOv6Uto89gLCWSEz8= =KUPT -----END PGP SIGNATURE----- Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi Pull SCSI updates from James Bottomley: "This consists of the usual driver updates (ufs, qla2xxx, smartpqi, target, zfcp, fnic, mpt3sas, ibmvfc) plus a load of cleanups, a major power management rework and a load of assorted minor updates. There are a few core updates (formatting fixes being the big one) but nothing major this cycle" * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (279 commits) scsi: mpt3sas: Update driver version to 36.100.00.00 scsi: mpt3sas: Handle trigger page after firmware update scsi: mpt3sas: Add persistent MPI trigger page scsi: mpt3sas: Add persistent SCSI sense trigger page scsi: mpt3sas: Add persistent Event trigger page scsi: mpt3sas: Add persistent Master trigger page scsi: mpt3sas: Add persistent trigger pages support scsi: mpt3sas: Sync time periodically between driver and firmware scsi: qla2xxx: Update version to 10.02.00.104-k scsi: qla2xxx: Fix device loss on 4G and older HBAs scsi: qla2xxx: If fcport is undergoing deletion complete I/O with retry scsi: qla2xxx: Fix the call trace for flush workqueue scsi: qla2xxx: Fix flash update in 28XX adapters on big endian machines scsi: qla2xxx: Handle aborts correctly for port undergoing deletion scsi: qla2xxx: Fix N2N and NVMe connect retry failure scsi: qla2xxx: Fix FW initialization error on big endian machines scsi: qla2xxx: Fix crash during driver load on big endian machines scsi: qla2xxx: Fix compilation issue in PPC systems scsi: qla2xxx: Don't check for fw_started while posting NVMe command scsi: qla2xxx: Tear down session if FW say it is down ... |
||
|
Linus Torvalds
|
ac7ac4618c |
for-5.11/block-2020-12-14
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Merge tag 'for-5.11/block-2020-12-14' of git://git.kernel.dk/linux-block
Pull block updates from Jens Axboe:
"Another series of killing more code than what is being added, again
thanks to Christoph's relentless cleanups and tech debt tackling.
This contains:
- blk-iocost improvements (Baolin Wang)
- part0 iostat fix (Jeffle Xu)
- Disable iopoll for split bios (Jeffle Xu)
- block tracepoint cleanups (Christoph Hellwig)
- Merging of struct block_device and hd_struct (Christoph Hellwig)
- Rework/cleanup of how block device sizes are updated (Christoph
Hellwig)
- Simplification of gendisk lookup and removal of block device
aliasing (Christoph Hellwig)
- Block device ioctl cleanups (Christoph Hellwig)
- Removal of bdget()/blkdev_get() as exported API (Christoph Hellwig)
- Disk change rework, avoid ->revalidate_disk() (Christoph Hellwig)
- sbitmap improvements (Pavel Begunkov)
- Hybrid polling fix (Pavel Begunkov)
- bvec iteration improvements (Pavel Begunkov)
- Zone revalidation fixes (Damien Le Moal)
- blk-throttle limit fix (Yu Kuai)
- Various little fixes"
* tag 'for-5.11/block-2020-12-14' of git://git.kernel.dk/linux-block: (126 commits)
blk-mq: fix msec comment from micro to milli seconds
blk-mq: update arg in comment of blk_mq_map_queue
blk-mq: add helper allocating tagset->tags
Revert "block: Fix a lockdep complaint triggered by request queue flushing"
nvme-loop: use blk_mq_hctx_set_fq_lock_class to set loop's lock class
blk-mq: add new API of blk_mq_hctx_set_fq_lock_class
block: disable iopoll for split bio
block: Improve blk_revalidate_disk_zones() checks
sbitmap: simplify wrap check
sbitmap: replace CAS with atomic and
sbitmap: remove swap_lock
sbitmap: optimise sbitmap_deferred_clear()
blk-mq: skip hybrid polling if iopoll doesn't spin
blk-iocost: Factor out the base vrate change into a separate function
blk-iocost: Factor out the active iocgs' state check into a separate function
blk-iocost: Move the usage ratio calculation to the correct place
blk-iocost: Remove unnecessary advance declaration
blk-iocost: Fix some typos in comments
blktrace: fix up a kerneldoc comment
block: remove the request_queue to argument request based tracepoints
...
|
||
|
Linus Torvalds
|
1a50ede2b3 |
Highlights:
- Improve support for re-exporting NFS mounts
- Replace NFSv4 XDR decoding C macros with xdr_stream helpers
- Support for multiple RPC/RDMA chunks per RPC transaction
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Merge tag 'nfsd-5.11' of git://git.linux-nfs.org/projects/cel/cel-2.6
Pull nfsd updates from Chuck Lever:
"Several substantial changes this time around:
- Previously, exporting an NFS mount via NFSD was considered to be an
unsupported feature. With v5.11, the community has attempted to
make re-exporting a first-class feature of NFSD.
This would enable the Linux in-kernel NFS server to be used as an
intermediate cache for a remotely-located primary NFS server, for
example, even with other NFS server implementations, like a NetApp
filer, as the primary.
- A short series of patches brings support for multiple RPC/RDMA data
chunks per RPC transaction to the Linux NFS server's RPC/RDMA
transport implementation.
This is a part of the RPC/RDMA spec that the other premiere
NFS/RDMA implementation (Solaris) has had for a very long time, and
completes the implementation of RPC/RDMA version 1 in the Linux
kernel's NFS server.
- Long ago, NFSv4 support was introduced to NFSD using a series of C
macros that hid dprintk's and goto's. Over time, the kernel's XDR
implementation has been greatly improved, but these C macros have
remained and become fallow. A series of patches in this pull
request completely replaces those macros with the use of current
kernel XDR infrastructure. Benefits include:
- More robust input sanitization in NFSD's NFSv4 XDR decoders.
- Make it easier to use common kernel library functions that use
XDR stream APIs (for example, GSS-API).
- Align the structure of the source code with the RFCs so it is
easier to learn, verify, and maintain our XDR implementation.
- Removal of more than a hundred hidden dprintk() call sites.
- Removal of some explicit manipulation of pages to help make the
eventual transition to xdr->bvec smoother.
- On top of several related fixes in 5.10-rc, there are a few more
fixes to get the Linux NFSD implementation of NFSv4.2 inter-server
copy up to speed.
And as usual, there is a pinch of seasoning in the form of a
collection of unrelated minor bug fixes and clean-ups.
Many thanks to all who contributed this time around!"
* tag 'nfsd-5.11' of git://git.linux-nfs.org/projects/cel/cel-2.6: (131 commits)
nfsd: Record NFSv4 pre/post-op attributes as non-atomic
nfsd: Set PF_LOCAL_THROTTLE on local filesystems only
nfsd: Fix up nfsd to ensure that timeout errors don't result in ESTALE
exportfs: Add a function to return the raw output from fh_to_dentry()
nfsd: close cached files prior to a REMOVE or RENAME that would replace target
nfsd: allow filesystems to opt out of subtree checking
nfsd: add a new EXPORT_OP_NOWCC flag to struct export_operations
Revert "nfsd4: support change_attr_type attribute"
nfsd4: don't query change attribute in v2/v3 case
nfsd: minor nfsd4_change_attribute cleanup
nfsd: simplify nfsd4_change_info
nfsd: only call inode_query_iversion in the I_VERSION case
nfs_common: need lock during iterate through the list
NFSD: Fix 5 seconds delay when doing inter server copy
NFSD: Fix sparse warning in nfs4proc.c
SUNRPC: Remove XDRBUF_SPARSE_PAGES flag in gss_proxy upcall
sunrpc: clean-up cache downcall
nfsd: Fix message level for normal termination
NFSD: Remove macros that are no longer used
NFSD: Replace READ* macros in nfsd4_decode_compound()
...
|
||
Trond Myklebust
|
edffb84cc8 |
NFSoRDmA Client updates for Linux 5.11
Cleanups and improvements: - Remove use of raw kernel memory addresses in tracepoints - Replace dprintk() call sites in ERR_CHUNK path - Trace unmap sync calls - Optimize MR DMA-unmapping -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEnZ5MQTpR7cLU7KEp18tUv7ClQOsFAl/SlTcACgkQ18tUv7Cl QOsc+xAA0qmDLbdZShFAiip/jgFvHkoIJzVcil5++xiRY77xOjR2rgkgBSv4hFYm XWBidP/eQm3n5r0S+LG0zudcHnaKBonZ0UV2j32PelMEnvn3H9qlSJYneEm9xv2O K1koNcbunJH8JRsLxbStdMnOnNwCmB+HzIjnWr87OgXkYucqDBBxt3RMyZVD46QU GypnItAtLns4Oacsw0TyPAPAxstjZ71YRlTMhtfyIYEJfvxUVRYRKvs7nPei9eCa 0uCzoKb28F7CWy+S9so7wSjfdDu4G+FmAfMvJbQF4irhgZBvzyzj4jq4hCnv377S XF6Eygm0Z4BSWNoAnRjgLx3Bo4ps4qZi7iAj8cUAksEKQ3QI2BWTWR3e07YwLfnm iwhWougP76zbtC3lNA+4D2yaYwA1LtN4IYp19KmS/0LyRe5EBry39ccE/eE508JA BGnCohawI9ya7WT3xTne9lyxNGhjm/jNDKt0ax0ze4hwIqSGekqhUzxQ0bl4suQz ZHP2gUEad07jZyy8gCcpEvvxA3fFW241vaG/hN34Dy47eHpAQDQIMk7611YRQXH/ jCBHoym1dHXc8eNa+gTmrjXdhVdgHo4zI0ppeaQvA2Ss0nPp8N8H2nJV/as536Dp on0b1zAF4o5uzGlEzHu+FuFGqUPE9My9/dNDqw3o0Cncu7adffk= =R45y -----END PGP SIGNATURE----- Merge tag 'nfs-rdma-for-5.11-1' of git://git.linux-nfs.org/projects/anna/linux-nfs into linux-next NFSoRDmA Client updates for Linux 5.11 Cleanups and improvements: - Remove use of raw kernel memory addresses in tracepoints - Replace dprintk() call sites in ERR_CHUNK path - Trace unmap sync calls - Optimize MR DMA-unmapping Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com> |
||
|
Linus Torvalds
|
b4ec805464 |
Power management updates for 5.11-rc1
- Use local_clock() instead of jiffies in the cpufreq statistics to
improve accuracy (Viresh Kumar).
- Fix up OPP usage in the cpufreq-dt and qcom-cpufreq-nvmem cpufreq
drivers (Viresh Kumar).
- Clean up the cpufreq core, the intel_pstate driver and the
schedutil cpufreq governor (Rafael Wysocki).
- Fix up error code paths in the sti-cpufreq and mediatek cpufreq
drivers (Yangtao Li, Qinglang Miao).
- Fix cpufreq_online() to return error codes instead of success (0)
in all cases when it fails (Wang ShaoBo).
- Add mt8167 support to the mediatek cpufreq driver and blacklist
mt8516 in the cpufreq-dt-platdev driver (Fabien Parent).
- Modify the tegra194 cpufreq driver to always return values from
the frequency table as the current frequency and clean up that
driver (Sumit Gupta, Jon Hunter).
- Modify the arm_scmi cpufreq driver to allow it to discover the
power scale present in the performance protocol and provide this
information to the Energy Model (Lukasz Luba).
- Add missing MODULE_DEVICE_TABLE to several cpufreq drivers (Pali
Rohár).
- Clean up the CPPC cpufreq driver (Ionela Voinescu).
- Fix NVMEM_IMX_OCOTP dependency in the imx cpufreq driver (Arnd
Bergmann).
- Rework the poling interval selection for the polling state in
cpuidle (Mel Gorman).
- Enable suspend-to-idle for PSCI OSI mode in the PSCI cpuidle
driver (Ulf Hansson).
- Modify the OPP framework to support empty (node-less) OPP tables
in DT for passing dependency information (Nicola Mazzucato).
- Fix potential lockdep issue in the OPP core and clean up the OPP
core (Viresh Kumar).
- Modify dev_pm_opp_put_regulators() to accept a NULL argument and
update its users accordingly (Viresh Kumar).
- Add frequency changes tracepoint to devfreq (Matthias Kaehlcke).
- Add support for governor feature flags to devfreq, make devfreq
sysfs file permissions depend on the governor and clean up the
devfreq core (Chanwoo Choi).
- Clean up the tegra20 devfreq driver and deprecate it to allow
another driver based on EMC_STAT to be used instead of it (Dmitry
Osipenko).
- Add interconnect support to the tegra30 devfreq driver, allow it
to take the interconnect and OPP information from DT and clean it
up ((Dmitry Osipenko).
- Add interconnect support to the exynos-bus devfreq driver along
with interconnect properties documentation (Sylwester Nawrocki).
- Add suport for AMD Fam17h and Fam19h processors to the RAPL power
capping driver (Victor Ding, Kim Phillips).
- Fix handling of overly long constraint names in the powercap
framework (Lukasz Luba).
- Fix the wakeup configuration handling for bridges in the ACPI
device power management core (Rafael Wysocki).
- Add support for using an abstract scale for power units in the
Energy Model (EM) and document it (Lukasz Luba).
- Add em_cpu_energy() micro-optimization to the EM (Pavankumar
Kondeti).
- Modify the generic power domains (genpd) framwework to support
suspend-to-idle (Ulf Hansson).
- Fix creation of debugfs nodes in genpd (Thierry Strudel).
- Clean up genpd (Lina Iyer).
- Clean up the core system-wide suspend code and make it print
driver flags for devices with debug enabled (Alex Shi, Patrice
Chotard, Chen Yu).
- Modify the ACPI system reboot code to make it prepare for system
power off to avoid confusing the platform firmware (Kai-Heng Feng).
- Update the pm-graph (multiple changes, mostly usability-related)
and cpupower (online and offline CPU information support) PM
utilities (Todd Brandt, Brahadambal Srinivasan).
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Merge tag 'pm-5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management updates from Rafael Wysocki:
"These update cpufreq (core and drivers), cpuidle (polling state
implementation and the PSCI driver), the OPP (operating performance
points) framework, devfreq (core and drivers), the power capping RAPL
(Running Average Power Limit) driver, the Energy Model support, the
generic power domains (genpd) framework, the ACPI device power
management, the core system-wide suspend code and power management
utilities.
Specifics:
- Use local_clock() instead of jiffies in the cpufreq statistics to
improve accuracy (Viresh Kumar).
- Fix up OPP usage in the cpufreq-dt and qcom-cpufreq-nvmem cpufreq
drivers (Viresh Kumar).
- Clean up the cpufreq core, the intel_pstate driver and the
schedutil cpufreq governor (Rafael Wysocki).
- Fix up error code paths in the sti-cpufreq and mediatek cpufreq
drivers (Yangtao Li, Qinglang Miao).
- Fix cpufreq_online() to return error codes instead of success (0)
in all cases when it fails (Wang ShaoBo).
- Add mt8167 support to the mediatek cpufreq driver and blacklist
mt8516 in the cpufreq-dt-platdev driver (Fabien Parent).
- Modify the tegra194 cpufreq driver to always return values from the
frequency table as the current frequency and clean up that driver
(Sumit Gupta, Jon Hunter).
- Modify the arm_scmi cpufreq driver to allow it to discover the
power scale present in the performance protocol and provide this
information to the Energy Model (Lukasz Luba).
- Add missing MODULE_DEVICE_TABLE to several cpufreq drivers (Pali
Rohár).
- Clean up the CPPC cpufreq driver (Ionela Voinescu).
- Fix NVMEM_IMX_OCOTP dependency in the imx cpufreq driver (Arnd
Bergmann).
- Rework the poling interval selection for the polling state in
cpuidle (Mel Gorman).
- Enable suspend-to-idle for PSCI OSI mode in the PSCI cpuidle driver
(Ulf Hansson).
- Modify the OPP framework to support empty (node-less) OPP tables in
DT for passing dependency information (Nicola Mazzucato).
- Fix potential lockdep issue in the OPP core and clean up the OPP
core (Viresh Kumar).
- Modify dev_pm_opp_put_regulators() to accept a NULL argument and
update its users accordingly (Viresh Kumar).
- Add frequency changes tracepoint to devfreq (Matthias Kaehlcke).
- Add support for governor feature flags to devfreq, make devfreq
sysfs file permissions depend on the governor and clean up the
devfreq core (Chanwoo Choi).
- Clean up the tegra20 devfreq driver and deprecate it to allow
another driver based on EMC_STAT to be used instead of it (Dmitry
Osipenko).
- Add interconnect support to the tegra30 devfreq driver, allow it to
take the interconnect and OPP information from DT and clean it up
(Dmitry Osipenko).
- Add interconnect support to the exynos-bus devfreq driver along
with interconnect properties documentation (Sylwester Nawrocki).
- Add suport for AMD Fam17h and Fam19h processors to the RAPL power
capping driver (Victor Ding, Kim Phillips).
- Fix handling of overly long constraint names in the powercap
framework (Lukasz Luba).
- Fix the wakeup configuration handling for bridges in the ACPI
device power management core (Rafael Wysocki).
- Add support for using an abstract scale for power units in the
Energy Model (EM) and document it (Lukasz Luba).
- Add em_cpu_energy() micro-optimization to the EM (Pavankumar
Kondeti).
- Modify the generic power domains (genpd) framwework to support
suspend-to-idle (Ulf Hansson).
- Fix creation of debugfs nodes in genpd (Thierry Strudel).
- Clean up genpd (Lina Iyer).
- Clean up the core system-wide suspend code and make it print driver
flags for devices with debug enabled (Alex Shi, Patrice Chotard,
Chen Yu).
- Modify the ACPI system reboot code to make it prepare for system
power off to avoid confusing the platform firmware (Kai-Heng Feng).
- Update the pm-graph (multiple changes, mostly usability-related)
and cpupower (online and offline CPU information support) PM
utilities (Todd Brandt, Brahadambal Srinivasan)"
* tag 'pm-5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (86 commits)
cpufreq: Fix cpufreq_online() return value on errors
cpufreq: Fix up several kerneldoc comments
cpufreq: stats: Use local_clock() instead of jiffies
cpufreq: schedutil: Simplify sugov_update_next_freq()
cpufreq: intel_pstate: Simplify intel_cpufreq_update_pstate()
PM: domains: create debugfs nodes when adding power domains
opp: of: Allow empty opp-table with opp-shared
dt-bindings: opp: Allow empty OPP tables
media: venus: dev_pm_opp_put_*() accepts NULL argument
drm/panfrost: dev_pm_opp_put_*() accepts NULL argument
drm/lima: dev_pm_opp_put_*() accepts NULL argument
PM / devfreq: exynos: dev_pm_opp_put_*() accepts NULL argument
cpufreq: qcom-cpufreq-nvmem: dev_pm_opp_put_*() accepts NULL argument
cpufreq: dt: dev_pm_opp_put_regulators() accepts NULL argument
opp: Allow dev_pm_opp_put_*() APIs to accept NULL opp_table
opp: Don't create an OPP table from dev_pm_opp_get_opp_table()
cpufreq: dt: Don't (ab)use dev_pm_opp_get_opp_table() to create OPP table
opp: Reduce the size of critical section in _opp_kref_release()
PM / EM: Micro optimization in em_cpu_energy
cpufreq: arm_scmi: Discover the power scale in performance protocol
...
|
||
|
Linus Torvalds
|
b109bc7229 |
Merge tag 'thermal-v5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux
Pull thermal updates from Daniel Lezcano: - Add upper and lower limits clamps for the cooling device state in the power allocator governor (Michael Kao) - Add upper and lower limits support for the power allocator governor (Lukasz Luba) - Optimize conditions testing for the trip points (Bernard Zhao) - Replace spin_lock_irqsave by spin_lock in hard IRQ on the rcar driver (Tian Tao) - Add MT8516 dt-bindings and device reset optional support (Fabien Parent) - Add a quiescent period to cool down the PCH when entering S0iX (Sumeet Pawnikar) - Use bitmap API instead of re-inventing the wheel on sun8i (Yangtao Li) - Remove useless NULL check in the hwmon driver (Bernard Zhao) - Update the current state in the cpufreq cooling device only if the frequency change is effective (Zhuguangqing) - Improve the schema validation for the rcar DT bindings (Geert Uytterhoeven) - Fix the user time unit in the documentation (Viresh Kumar) - Add PCI ids for Lewisburg PCH (Andres Freund) - Add hwmon support on amlogic (Martin Blumenstingl) - Fix build failure for PCH entering on in S0iX (Randy Dunlap) - Improve the k_* coefficient for the power allocator governor (Lukasz Luba) - Fix missing const on a sysfs attribute (Rikard Falkeborn) - Remove broken interrupt support on rcar to be replaced by a new one (Niklas Söderlund) - Improve the error code handling at init time on imx8mm (Fabio Estevam) - Compute interval validity once instead at each temperature reading iteration on acerhdf (Daniel Lezcano) - Add r8a779a0 support (Niklas Söderlund) - Add PCI ids for AlderLake PCH and mmio refactoring (Srinivas Pandruvada) - Add RFIM and mailbox support on int340x (Srinivas Pandruvada) - Use macro for temperature calculation on PCH (Sumeet Pawnikar) - Simplify return conditions at probe time on Broadcom (Zheng Yongjun) - Fix workload name on PCH (Srinivas Pandruvada) - Migrate the devfreq cooling device code to the energy model API (Lukasz Luba) - Emit a warning if the thermal_zone_device_update is called without the .get_temp() ops (Daniel Lezcano) - Add critical and hot ops for the thermal zone (Daniel Lezcano) - Remove notification usage when critical is reached on rcar (Daniel Lezcano) - Fix devfreq build when ENERGY_MODEL is not set (Lukasz Luba) * tag 'thermal-v5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux: (45 commits) thermal/drivers/devfreq_cooling: Fix the build when !ENERGY_MODEL thermal/drivers/rcar: Remove notification usage thermal/core: Add critical and hot ops thermal/core: Emit a warning if the thermal zone is updated without ops drm/panfrost: Register devfreq cooling and attempt to add Energy Model thermal: devfreq_cooling: remove old power model and use EM thermal: devfreq_cooling: add new registration functions with Energy Model thermal: devfreq_cooling: use a copy of device status thermal: devfreq_cooling: change tracing function and arguments thermal: int340x: processor_thermal: Correct workload type name thermal: broadcom: simplify the return expression of bcm2711_thermal_probe() thermal: intel: pch: use macro for temperature calculation thermal: int340x: processor_thermal: Add mailbox driver thermal: int340x: processor_thermal: Add RFIM driver thermal: int340x: processor_thermal: Add AlderLake PCI device id thermal: int340x: processor_thermal: Refactor MMIO interface thermal: rcar_gen3_thermal: Add r8a779a0 support dt-bindings: thermal: rcar-gen3-thermal: Add r8a779a0 support platform/x86/drivers/acerhdf: Check the interval value when it is set platform/x86/drivers/acerhdf: Use module_param_cb to set/get polling interval ... |
||
|
Linus Torvalds
|
c367caf1a3 |
sound updates for 5.11-rc1
Lots of changes (slightly more code increase than usual) at this
time, while most of code changes are ASoC driver-specific.
Here goes some highlight:
Core:
* The new auxiliary bus implementation for Intel DSP, which will
be used by other drivers as well
* Lots of ASoC core cleanups and refactoring
* UBSAN and KCSAN fixes in rawmidi, sequencer and a few others
* Compress-offload API enhancement for the pause during draining
HD- and USB-audio:
* Enhancements of the USB-audio implicit feedback support,
including better full-duplex operations
* Continued CA0132 improvements and fixes
* A few new quirk entries, HDMI audio fixes
ASoC:
* Support for boot time selection of Intel DSP firmware, which
should help distros/users testing new stuff more easily;
the kconfig was moved to boot time option, too
* Some basic DPCM support in audio graph card
* Removal of old pre-DT Freescale drivers
* Support for Allwinner H6 I2S, Analog Devices ADAU1372, Intel
Alderlake-S, GMediatek MT8192, NXP i.MX HDMI and XCVR, Realtek
RT715, Qualcomm SM8250 and simple GPIO based muxes
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Merge tag 'sound-5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound updates from Takashi Iwai:
"Lots of changes (slightly more code increase than usual) at this time,
while most of code changes are ASoC driver-specific.
Here are some highlights:
Core:
- The new auxiliary bus implementation for Intel DSP, which will be
used by other drivers as well
- Lots of ASoC core cleanups and refactoring
- UBSAN and KCSAN fixes in rawmidi, sequencer and a few others
- Compress-offload API enhancement for the pause during draining
HD- and USB-audio:
- Enhancements of the USB-audio implicit feedback support, including
better full-duplex operations
- Continued CA0132 improvements and fixes
- A few new quirk entries, HDMI audio fixes
ASoC:
- Support for boot time selection of Intel DSP firmware, which should
help distros/users testing new stuff more easily; the kconfig was
moved to boot time option, too
- Some basic DPCM support in audio graph card
- Removal of old pre-DT Freescale drivers
- Support for Allwinner H6 I2S, Analog Devices ADAU1372, Intel
Alderlake-S, GMediatek MT8192, NXP i.MX HDMI and XCVR, Realtek
RT715, Qualcomm SM8250 and simple GPIO based muxes"
* tag 'sound-5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (445 commits)
ALSA: pcm: oss: Fix potential out-of-bounds shift
ALSA: usb-audio: Fix potential out-of-bounds shift
ALSA: hda/ca0132 - Add ZxR surround DAC setup.
ALSA: hda/ca0132 - Add 8051 PLL write helper functions.
ALSA: hda/hdmi: packet buffer index must be set before reading value
ASoC: SOF: imx: update kernel-doc description
ASoC: mediatek: mt8183: delete some unreachable code
ASoC: mediatek: mt8183: add PM ops to machine drivers
ASoC: topology: Fix wrong size check
ASoC: topology: Add missing size check
ASoC: SOF: Intel: hda: fix the condition passed to sof_dev_dbg_or_err
ASoC: SOF: modify the SOF_DBG flags
ASoC: SOF: Intel: hda: remove duplicated status dump
ASoC: rt1015p: delay 300ms after SDB pulling high for calibration
ASoC: rt1015p: move SDB control from trigger to DAPM
ASoC: wm_adsp: remove "ctl" from list on error in wm_adsp_create_control()
ALSA: usb-audio: Fix control 'access overflow' errors from chmap
ALSA: hda/hdmi: always print pin NIDs as hexadecimal
ALSA: hda/realtek - Add supported for more Lenovo ALC285 Headset Button
ALSA: hda/ca0132 - Remove now unnecessary DSP setup functions.
...
|
||
|
Linus Torvalds
|
d635a69dd4 |
Networking updates for 5.11
Core:
- support "prefer busy polling" NAPI operation mode, where we defer softirq
for some time expecting applications to periodically busy poll
- AF_XDP: improve efficiency by more batching and hindering
the adjacency cache prefetcher
- af_packet: make packet_fanout.arr size configurable up to 64K
- tcp: optimize TCP zero copy receive in presence of partial or unaligned
reads making zero copy a performance win for much smaller messages
- XDP: add bulk APIs for returning / freeing frames
- sched: support fragmenting IP packets as they come out of conntrack
- net: allow virtual netdevs to forward UDP L4 and fraglist GSO skbs
BPF:
- BPF switch from crude rlimit-based to memcg-based memory accounting
- BPF type format information for kernel modules and related tracing
enhancements
- BPF implement task local storage for BPF LSM
- allow the FENTRY/FEXIT/RAW_TP tracing programs to use bpf_sk_storage
Protocols:
- mptcp: improve multiple xmit streams support, memory accounting and
many smaller improvements
- TLS: support CHACHA20-POLY1305 cipher
- seg6: add support for SRv6 End.DT4/DT6 behavior
- sctp: Implement RFC 6951: UDP Encapsulation of SCTP
- ppp_generic: add ability to bridge channels directly
- bridge: Connectivity Fault Management (CFM) support as is defined in
IEEE 802.1Q section 12.14.
Drivers:
- mlx5: make use of the new auxiliary bus to organize the driver internals
- mlx5: more accurate port TX timestamping support
- mlxsw:
- improve the efficiency of offloaded next hop updates by using
the new nexthop object API
- support blackhole nexthops
- support IEEE 802.1ad (Q-in-Q) bridging
- rtw88: major bluetooth co-existance improvements
- iwlwifi: support new 6 GHz frequency band
- ath11k: Fast Initial Link Setup (FILS)
- mt7915: dual band concurrent (DBDC) support
- net: ipa: add basic support for IPA v4.5
Refactor:
- a few pieces of in_interrupt() cleanup work from Sebastian Andrzej Siewior
- phy: add support for shared interrupts; get rid of multiple driver
APIs and have the drivers write a full IRQ handler, slight growth
of driver code should be compensated by the simpler API which
also allows shared IRQs
- add common code for handling netdev per-cpu counters
- move TX packet re-allocation from Ethernet switch tag drivers to
a central place
- improve efficiency and rename nla_strlcpy
- number of W=1 warning cleanups as we now catch those in a patchwork
build bot
Old code removal:
- wan: delete the DLCI / SDLA drivers
- wimax: move to staging
- wifi: remove old WDS wifi bridging support
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-next-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from Jakub Kicinski:
"Core:
- support "prefer busy polling" NAPI operation mode, where we defer
softirq for some time expecting applications to periodically busy
poll
- AF_XDP: improve efficiency by more batching and hindering the
adjacency cache prefetcher
- af_packet: make packet_fanout.arr size configurable up to 64K
- tcp: optimize TCP zero copy receive in presence of partial or
unaligned reads making zero copy a performance win for much smaller
messages
- XDP: add bulk APIs for returning / freeing frames
- sched: support fragmenting IP packets as they come out of conntrack
- net: allow virtual netdevs to forward UDP L4 and fraglist GSO skbs
BPF:
- BPF switch from crude rlimit-based to memcg-based memory accounting
- BPF type format information for kernel modules and related tracing
enhancements
- BPF implement task local storage for BPF LSM
- allow the FENTRY/FEXIT/RAW_TP tracing programs to use
bpf_sk_storage
Protocols:
- mptcp: improve multiple xmit streams support, memory accounting and
many smaller improvements
- TLS: support CHACHA20-POLY1305 cipher
- seg6: add support for SRv6 End.DT4/DT6 behavior
- sctp: Implement RFC 6951: UDP Encapsulation of SCTP
- ppp_generic: add ability to bridge channels directly
- bridge: Connectivity Fault Management (CFM) support as is defined
in IEEE 802.1Q section 12.14.
Drivers:
- mlx5: make use of the new auxiliary bus to organize the driver
internals
- mlx5: more accurate port TX timestamping support
- mlxsw:
- improve the efficiency of offloaded next hop updates by using
the new nexthop object API
- support blackhole nexthops
- support IEEE 802.1ad (Q-in-Q) bridging
- rtw88: major bluetooth co-existance improvements
- iwlwifi: support new 6 GHz frequency band
- ath11k: Fast Initial Link Setup (FILS)
- mt7915: dual band concurrent (DBDC) support
- net: ipa: add basic support for IPA v4.5
Refactor:
- a few pieces of in_interrupt() cleanup work from Sebastian Andrzej
Siewior
- phy: add support for shared interrupts; get rid of multiple driver
APIs and have the drivers write a full IRQ handler, slight growth
of driver code should be compensated by the simpler API which also
allows shared IRQs
- add common code for handling netdev per-cpu counters
- move TX packet re-allocation from Ethernet switch tag drivers to a
central place
- improve efficiency and rename nla_strlcpy
- number of W=1 warning cleanups as we now catch those in a patchwork
build bot
Old code removal:
- wan: delete the DLCI / SDLA drivers
- wimax: move to staging
- wifi: remove old WDS wifi bridging support"
* tag 'net-next-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1922 commits)
net: hns3: fix expression that is currently always true
net: fix proc_fs init handling in af_packet and tls
nfc: pn533: convert comma to semicolon
af_vsock: Assign the vsock transport considering the vsock address flags
af_vsock: Set VMADDR_FLAG_TO_HOST flag on the receive path
vsock_addr: Check for supported flag values
vm_sockets: Add VMADDR_FLAG_TO_HOST vsock flag
vm_sockets: Add flags field in the vsock address data structure
net: Disable NETIF_F_HW_TLS_TX when HW_CSUM is disabled
tcp: Add logic to check for SYN w/ data in tcp_simple_retransmit
net: mscc: ocelot: install MAC addresses in .ndo_set_rx_mode from process context
nfc: s3fwrn5: Release the nfc firmware
net: vxget: clean up sparse warnings
mlxsw: spectrum_router: Use eXtended mezzanine to offload IPv4 router
mlxsw: spectrum: Set KVH XLT cache mode for Spectrum2/3
mlxsw: spectrum_router_xm: Introduce basic XM cache flushing
mlxsw: reg: Add Router LPM Cache Enable Register
mlxsw: reg: Add Router LPM Cache ML Delete Register
mlxsw: spectrum_router_xm: Implement L-value tracking for M-index
mlxsw: reg: Add XM Router M Table Register
...
|
||
|
Linus Torvalds
|
ac73e3dc8a |
Merge branch 'akpm' (patches from Andrew)
Merge misc updates from Andrew Morton:
- a few random little subsystems
- almost all of the MM patches which are staged ahead of linux-next
material. I'll trickle to post-linux-next work in as the dependents
get merged up.
Subsystems affected by this patch series: kthread, kbuild, ide, ntfs,
ocfs2, arch, and mm (slab-generic, slab, slub, dax, debug, pagecache,
gup, swap, shmem, memcg, pagemap, mremap, hmm, vmalloc, documentation,
kasan, pagealloc, memory-failure, hugetlb, vmscan, z3fold, compaction,
oom-kill, migration, cma, page-poison, userfaultfd, zswap, zsmalloc,
uaccess, zram, and cleanups).
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (200 commits)
mm: cleanup kstrto*() usage
mm: fix fall-through warnings for Clang
mm: slub: convert sysfs sprintf family to sysfs_emit/sysfs_emit_at
mm: shmem: convert shmem_enabled_show to use sysfs_emit_at
mm:backing-dev: use sysfs_emit in macro defining functions
mm: huge_memory: convert remaining use of sprintf to sysfs_emit and neatening
mm: use sysfs_emit for struct kobject * uses
mm: fix kernel-doc markups
zram: break the strict dependency from lzo
zram: add stat to gather incompressible pages since zram set up
zram: support page writeback
mm/process_vm_access: remove redundant initialization of iov_r
mm/zsmalloc.c: rework the list_add code in insert_zspage()
mm/zswap: move to use crypto_acomp API for hardware acceleration
mm/zswap: fix passing zero to 'PTR_ERR' warning
mm/zswap: make struct kernel_param_ops definitions const
userfaultfd/selftests: hint the test runner on required privilege
userfaultfd/selftests: fix retval check for userfaultfd_open()
userfaultfd/selftests: always dump something in modes
userfaultfd: selftests: make __{s,u}64 format specifiers portable
...
|
||
Axel Rasmussen
|
2b5067a814 |
mm: mmap_lock: add tracepoints around lock acquisition
The goal of these tracepoints is to be able to debug lock contention issues. This lock is acquired on most (all?) mmap / munmap / page fault operations, so a multi-threaded process which does a lot of these can experience significant contention. We trace just before we start acquisition, when the acquisition returns (whether it succeeded or not), and when the lock is released (or downgraded). The events are broken out by lock type (read / write). The events are also broken out by memcg path. For container-based workloads, users often think of several processes in a memcg as a single logical "task", so collecting statistics at this level is useful. The end goal is to get latency information. This isn't directly included in the trace events. Instead, users are expected to compute the time between "start locking" and "acquire returned", using e.g. synthetic events or BPF. The benefit we get from this is simpler code. Because we use tracepoint_enabled() to decide whether or not to trace, this patch has effectively no overhead unless tracepoints are enabled at runtime. If tracepoints are enabled, there is a performance impact, but how much depends on exactly what e.g. the BPF program does. [axelrasmussen@google.com: fix use-after-free race and css ref leak in tracepoints] Link: https://lkml.kernel.org/r/20201130233504.3725241-1-axelrasmussen@google.com [axelrasmussen@google.com: v3] Link: https://lkml.kernel.org/r/20201207213358.573750-1-axelrasmussen@google.com [rostedt@goodmis.org: in-depth examples of tracepoint_enabled() usage, and per-cpu-per-context buffer design] Link: https://lkml.kernel.org/r/20201105211739.568279-2-axelrasmussen@google.com Signed-off-by: Axel Rasmussen <axelrasmussen@google.com> Acked-by: Vlastimil Babka <vbabka@suse.cz> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Michel Lespinasse <walken@google.com> Cc: Daniel Jordan <daniel.m.jordan@oracle.com> Cc: Jann Horn <jannh@google.com> Cc: Chinwen Chang <chinwen.chang@mediatek.com> Cc: Davidlohr Bueso <dbueso@suse.de> Cc: David Rientjes <rientjes@google.com> Cc: Laurent Dufour <ldufour@linux.ibm.com> Cc: Yafang Shao <laoar.shao@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
Rob Clark
|
f630c7c6f1 |
kthread: add kthread_work tracepoints
While migrating some code from wq to kthread_worker, I found that I missed the execute_start/end tracepoints. So add similar tracepoints for kthread_work. And for completeness, queue_work tracepoint (although this one differs slightly from the matching workqueue tracepoint). Link: https://lkml.kernel.org/r/20201010180323.126634-1-robdclark@gmail.com Signed-off-by: Rob Clark <robdclark@chromium.org> Cc: Rob Clark <robdclark@chromium.org> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: "Peter Zijlstra (Intel)" <peterz@infradead.org> Cc: Phil Auld <pauld@redhat.com> Cc: Valentin Schneider <valentin.schneider@arm.com> Cc: Thara Gopinath <thara.gopinath@linaro.org> Cc: Randy Dunlap <rdunlap@infradead.org> Cc: Vincent Donnefort <vincent.donnefort@arm.com> Cc: Mel Gorman <mgorman@techsingularity.net> Cc: Jens Axboe <axboe@kernel.dk> Cc: Marcelo Tosatti <mtosatti@redhat.com> Cc: Frederic Weisbecker <frederic@kernel.org> Cc: Ilias Stamatis <stamatis.iliass@gmail.com> Cc: Liang Chen <cl@rock-chips.com> Cc: Ben Dooks <ben.dooks@codethink.co.uk> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: "J. Bruce Fields" <bfields@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
|
Linus Torvalds
|
1ac0884d54 |
A set of updates for entry/exit handling:
- More generalization of entry/exit functionality
- The consolidation work to reclaim TIF flags on x86 and also for non-x86
specific TIF flags which are solely relevant for syscall related work
and have been moved into their own storage space. The x86 specific part
had to be merged in to avoid a major conflict.
- The TIF_NOTIFY_SIGNAL work which replaces the inefficient signal
delivery mode of task work and results in an impressive performance
improvement for io_uring. The non-x86 consolidation of this is going to
come seperate via Jens.
- The selective syscall redirection facility which provides a clean and
efficient way to support the non-Linux syscalls of WINE by catching them
at syscall entry and redirecting them to the user space emulation. This
can be utilized for other purposes as well and has been designed
carefully to avoid overhead for the regular fastpath. This includes the
core changes and the x86 support code.
- Simplification of the context tracking entry/exit handling for the users
of the generic entry code which guarantee the proper ordering and
protection.
- Preparatory changes to make the generic entry code accomodate S390
specific requirements which are mostly related to their syscall restart
mechanism.
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Merge tag 'core-entry-2020-12-14' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull core entry/exit updates from Thomas Gleixner:
"A set of updates for entry/exit handling:
- More generalization of entry/exit functionality
- The consolidation work to reclaim TIF flags on x86 and also for
non-x86 specific TIF flags which are solely relevant for syscall
related work and have been moved into their own storage space. The
x86 specific part had to be merged in to avoid a major conflict.
- The TIF_NOTIFY_SIGNAL work which replaces the inefficient signal
delivery mode of task work and results in an impressive performance
improvement for io_uring. The non-x86 consolidation of this is
going to come seperate via Jens.
- The selective syscall redirection facility which provides a clean
and efficient way to support the non-Linux syscalls of WINE by
catching them at syscall entry and redirecting them to the user
space emulation. This can be utilized for other purposes as well
and has been designed carefully to avoid overhead for the regular
fastpath. This includes the core changes and the x86 support code.
- Simplification of the context tracking entry/exit handling for the
users of the generic entry code which guarantee the proper ordering
and protection.
- Preparatory changes to make the generic entry code accomodate S390
specific requirements which are mostly related to their syscall
restart mechanism"
* tag 'core-entry-2020-12-14' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (36 commits)
entry: Add syscall_exit_to_user_mode_work()
entry: Add exit_to_user_mode() wrapper
entry_Add_enter_from_user_mode_wrapper
entry: Rename exit_to_user_mode()
entry: Rename enter_from_user_mode()
docs: Document Syscall User Dispatch
selftests: Add benchmark for syscall user dispatch
selftests: Add kselftest for syscall user dispatch
entry: Support Syscall User Dispatch on common syscall entry
kernel: Implement selective syscall userspace redirection
signal: Expose SYS_USER_DISPATCH si_code type
x86: vdso: Expose sigreturn address on vdso to the kernel
MAINTAINERS: Add entry for common entry code
entry: Fix boot for !CONFIG_GENERIC_ENTRY
x86: Support HAVE_CONTEXT_TRACKING_OFFSTACK
context_tracking: Only define schedule_user() on !HAVE_CONTEXT_TRACKING_OFFSTACK archs
sched: Detect call to schedule from critical entry code
context_tracking: Don't implement exception_enter/exit() on CONFIG_HAVE_CONTEXT_TRACKING_OFFSTACK
context_tracking: Introduce HAVE_CONTEXT_TRACKING_OFFSTACK
x86: Reclaim unused x86 TI flags
...
|
||
Takashi Iwai
|
598100be30 |
ASoC: Updates for v5.11
There's a lot of changes here but mostly cleanups and driver specific
things, the most user visible change is the support for boot time
selection of Intel DSP firmware which will make it easier for people to
move over to the preferred modern implementations in distros and other
large scale deployments.
This also includes a merge of the new auxillary bus which was done in
anticipation of use by the Intel DSP drivers which didn't quite make it.
- Lots more cleanups and simplifications from Morimoto-san.
- Support for some basic DPCM systems in the audio graph card from
Sameer Pujar.
- Remove some old pre-DT Freescale drivers for platforms that are now
DT only.
- Move selection of which Intel DSP implementation to use to boot time
rather than requiring it to be selected at build time.
- Support for Allwinner H6 I2S, Analog Devices ADAU1372, Intel
Alderlake-S, GMediatek MT8192, NXP i.MX HDMI and XCVR, Realtek RT715,
Qualcomm SM8250 and simple GPIO based muxes.
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Merge tag 'asoc-v5.11' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Updates for v5.11
There's a lot of changes here but mostly cleanups and driver specific
things, the most user visible change is the support for boot time
selection of Intel DSP firmware which will make it easier for people to
move over to the preferred modern implementations in distros and other
large scale deployments.
This also includes a merge of the new auxillary bus which was done in
anticipation of use by the Intel DSP drivers which didn't quite make it.
- Lots more cleanups and simplifications from Morimoto-san.
- Support for some basic DPCM systems in the audio graph card from
Sameer Pujar.
- Remove some old pre-DT Freescale drivers for platforms that are now
DT only.
- Move selection of which Intel DSP implementation to use to boot time
rather than requiring it to be selected at build time.
- Support for Allwinner H6 I2S, Analog Devices ADAU1372, Intel
Alderlake-S, GMediatek MT8192, NXP i.MX HDMI and XCVR, Realtek RT715,
Qualcomm SM8250 and simple GPIO based muxes.
|
||
Rafael J. Wysocki
|
d3569c149d |
Update devfreq for 5.11
Detailed description for this pull request:
1. Update devfreq core
- Add new devfreq_frequency tracepoint to show the frequency change
information.
- Add governor feature flag. The devfreq governor is able to
have the specific flag in order to contain the non-common feature.
For example, if governor contains the 'immutable' feature, don't allow
user to change the governor via sysfs.
- Add governor sysfs attribute flag for each sysfs file. Prior to that
devfreq subsystem show the all sysfs files regardless of governor type.
But, some sysfs fils are not supported on the specific devfreq governor.
In order to show the only supported sysfs files according to the governor,
clarify the access permission of sysfs attributes according to governor.
When adding the devfreq governor, can specify the available attribute
information by using DEVFREQ_GOV_ATTR_* constant variable. The user can
read or write the sysfs attributes in accordance to the specified attributes.
- Clean-up the code to remove the duplicate code for the devfreq tracepoint
and to remove redundant governor_name field from struct devfreq
2. Update exynos-bus.c devfreq driver
- Add interconnect API support for the Samsung Exynos Bus Frequency driver
of exynos-bus.c. Complementing the devfreq driver with an interconnect
functionality allows to ensure the QoS requirements of devices accessing
the system memory (e.g. video processing devices) are fulfilled
and allows to avoid issues like the DMA underrun.
3. Update tegra devfreq driver
- Add interconnect support and OPP interface for tegra30-devfreq.c.
Also, it is to guarantee the QoS requirement of some devices like
display controller.
- Move tegra20-devfreq.c from drivers/devfreq/ into driver/memory/tegra/
in order to use the more proper monitoring feature such as EMC_STAT
which is based in driver/memory/tegra/.
- Separate the configuration information for different SoC on
tegra30-devfrqe.c. The tegra30-devfreq.c had been supported both
tegra30-actmon and tegra124-actmon devices. In order to use
the more correct configuration data, separate them.
- Use dev_err_probe() to handle the deferred probe error on tegra30-devfreq.c.
4. Pull the request of 'Tegra SoC and clock controller changes for v5.11'
sent by Krzysztof Kozlowski <krzk@kernel.org> in order to prevent the
build error.
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Merge tag 'devfreq-next-for-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/linux
Pull devfreq updates for 5.11 from Chanwoo Choi:
1. Update devfreq core
- Add new devfreq_frequency tracepoint to show the frequency change
information.
- Add governor feature flag. The devfreq governor is able to set the
specific flag in order to support a non-common feature. For
example, if the governor supports the 'immutable' feature, don't
allow user space to change the governor via sysfs.
- Add governor sysfs attribute flag for each sysfs file. Prior to that
the devfreq subsystem allowed all of the sysfs files to be accessed
regardless of the governor type. But some sysfs fils are not
supported by specific devfreq governors. In order to only allow the
sysfs files supported by the governor to be accessed, clarify the
access permissions of sysfs attributes according to the governor.
When adding the devfreq governor, specify the available attribute
information by using DEVFREQ_GOV_ATTR_* symbols. The user can read
or write the sysfs attributes in accordance to the specified
access permissions.
- Clean-up the code to reduce duplication for the devfreq tracepoint
and to remove redundant governor_name field from struct devfreq.
2. Update exynos-bus.c devfreq driver
- Add interconnect API support to the Samsung Exynos Bus Frequency
driver, exynos-bus.c. Complementing the devfreq driver with
interconnect functionality allows to ensure that the QoS
requirements regarding devices accessing the system memory (e.g.
video processing devices) will be met and allows to avoid issues
like DMA underrun.
3. Update tegra devfreq driver
- Add interconnect support and OPP interface to tegra30-devfreq.c.
Also, it is to guarantee the QoS requirement of some devices like
the display controller.
- Move tegra20-devfreq.c from drivers/devfreq/ into drivers/memory/tegra/
in order to use the more proper monitoring feature such as EMC_STAT
which is located in drivers/memory/tegra/.
- Separate the configuration information for different SoCs in
tegra30-devfrqe.c. The tegra30-devfreq.c had been supporting both
tegra30-actmon and tegra124-actmon devices. In order to use the
more correct configuration data, separate them.
- Use dev_err_probe() to handle the deferred probe error in
tegra30-devfreq.c.
4. Pull the request of 'Tegra SoC and clock controller changes for
v5.11' sent by Krzysztof Kozlowski <krzk@kernel.org> in order to
avoid a build error."
* tag 'devfreq-next-for-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/linux:
PM / devfreq: tegra30: Separate configurations per-SoC generation
PM / devfreq: tegra30: Support interconnect and OPPs from device-tree
PM / devfreq: tegra20: Deprecate in a favor of emc-stat based driver
PM / devfreq: exynos-bus: Add registration of interconnect child device
dt-bindings: devfreq: Add documentation for the interconnect properties
soc/tegra: fuse: Add stub for tegra_sku_info
soc/tegra: fuse: Export tegra_read_ram_code()
clk: tegra: Export Tegra20 EMC kernel symbols
PM / devfreq: tegra30: Silence deferred probe error
PM / devfreq: tegra20: Relax Kconfig dependency
PM / devfreq: tegra20: Silence deferred probe error
PM / devfreq: Remove redundant governor_name from struct devfreq
PM / devfreq: Add governor attribute flag for specifc sysfs nodes
PM / devfreq: Add governor feature flag
PM / devfreq: Add tracepoint for frequency changes
PM / devfreq: Unify frequency change to devfreq_update_target func
trace: events: devfreq: Use fixed indentation size to improve readability
|
||
Lukasz Luba
|
b8643a5299 |
thermal: devfreq_cooling: change tracing function and arguments
Prepare for deleting the static and dynamic power calculation and clean the trace function. These two fields are going to be removed in the next changes. Reviewed-by: Ionela Voinescu <ionela.voinescu@arm.com> Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org> # for tracing code Signed-off-by: Lukasz Luba <lukasz.luba@arm.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20201210143014.24685-2-lukasz.luba@arm.com |
||
Mark Brown
|
4ecc08b2f5 |
Auxiliary Bus support tag for 5.11-rc1
This is a signed tag for other subsystems to be able to pull in the auxiliary bus support into their trees for the 5.11-rc1 merge. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> -----BEGIN PGP SIGNATURE----- iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCX8oseA8cZ3JlZ0Brcm9h aC5jb20ACgkQMUfUDdst+ylqGQCdF2TND5jjcETWHIrunPAX6iEDLecAnjyIMc4q cIr5piwCq+m6/S2gSCpA =t7EL -----END PGP SIGNATURE----- gpgsig -----BEGIN PGP SIGNATURE----- iQEzBAABCgAdFiEEreZoqmdXGLWf4p/qJNaLcl1Uh9AFAl/KnpUACgkQJNaLcl1U h9CWvQf9EdHZFlsDiP8PbbSLtMzpkqaJOlmg3A1Rn6XOYjztDEDQQp12vYC9jOmJ PkBz8kh+0dohTt6TIx5IEt+r1pbYWAzFOkX7v3QzYp8+nrmd1bT/RDRglOrmydLH ntd9XNE1BA8k9n4YQQBWrspDEnwnpCygSw4lP/QXz7OyyhnZ7fYGOG3hPXKw+Sdj gQugmSAnUYaVti4d7K6Cuhj08HT13FvGFqrkLYljTmsnnVw0T4kXNFtiODMe1QMq YYeKiHCFI8ysk2hK0sYdmwr5rz5eWT5mGnSXPGsD3o876NF1uw+Q5iTX57uydDrp GijjnCOGz+yZ7dfBi2MAflP5Xsw4ew== =SVwj -----END PGP SIGNATURE----- Merge tag 'auxbus-5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core into asoc-5.11 Auxiliary Bus support tag for 5.11-rc1 This is a signed tag for other subsystems to be able to pull in the auxiliary bus support into their trees for the 5.11-rc1 merge. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
||
Tom Rix
|
2fa3515cc0 |
bpf: Remove trailing semicolon in macro definition
The macro use will already have a semicolon. Clean up escaped newlines. Signed-off-by: Tom Rix <trix@redhat.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/20201202212810.3774614-1-trix@redhat.com |
||
Christoph Hellwig
|
a54895fa05 |
block: remove the request_queue to argument request based tracepoints
The request_queue can trivially be derived from the request. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Damien Le Moal <damien.lemoal@wdc.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jens Axboe <axboe@kernel.dk> |
||
|
Christoph Hellwig
|
1c02fca620 |
block: remove the request_queue argument to the block_bio_remap tracepoint
The request_queue can trivially be derived from the bio. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Damien Le Moal <damien.lemoal@wdc.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jens Axboe <axboe@kernel.dk> |
||
|
Christoph Hellwig
|
eb6f7f7cd3 |
block: remove the request_queue argument to the block_split tracepoint
The request_queue can trivially be derived from the bio. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Damien Le Moal <damien.lemoal@wdc.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jens Axboe <axboe@kernel.dk> |
||
|
Christoph Hellwig
|
e8a676d61c |
block: simplify and extend the block_bio_merge tracepoint class
The block_bio_merge tracepoint class can be reused for most bio-based tracepoints. For that it just needs to lose the superfluous q and rq parameters. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Damien Le Moal <damien.lemoal@wdc.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jens Axboe <axboe@kernel.dk> |
||
|
Christoph Hellwig
|
b81b8f40c5 |
block: remove the unused block_sleeprq tracepoint
The block_sleeprq tracepoint was only used by the legacy request code. Remove it now that the legacy request code is gone. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Damien Le Moal <damien.lemoal@wdc.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jens Axboe <axboe@kernel.dk> |
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Jakub Kicinski
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a1dd1d8697 |
Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Alexei Starovoitov says:
====================
pull-request: bpf-next 2020-12-03
The main changes are:
1) Support BTF in kernel modules, from Andrii.
2) Introduce preferred busy-polling, from Björn.
3) bpf_ima_inode_hash() and bpf_bprm_opts_set() helpers, from KP Singh.
4) Memcg-based memory accounting for bpf objects, from Roman.
5) Allow bpf_{s,g}etsockopt from cgroup bind{4,6} hooks, from Stanislav.
* https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (118 commits)
selftests/bpf: Fix invalid use of strncat in test_sockmap
libbpf: Use memcpy instead of strncpy to please GCC
selftests/bpf: Add fentry/fexit/fmod_ret selftest for kernel module
selftests/bpf: Add tp_btf CO-RE reloc test for modules
libbpf: Support attachment of BPF tracing programs to kernel modules
libbpf: Factor out low-level BPF program loading helper
bpf: Allow to specify kernel module BTFs when attaching BPF programs
bpf: Remove hard-coded btf_vmlinux assumption from BPF verifier
selftests/bpf: Add CO-RE relocs selftest relying on kernel module BTF
selftests/bpf: Add support for marking sub-tests as skipped
selftests/bpf: Add bpf_testmod kernel module for testing
libbpf: Add kernel module BTF support for CO-RE relocations
libbpf: Refactor CO-RE relocs to not assume a single BTF object
libbpf: Add internal helper to load BTF data by FD
bpf: Keep module's btf_data_size intact after load
bpf: Fix bpf_put_raw_tracepoint()'s use of __module_address()
selftests/bpf: Add Userspace tests for TCP_WINDOW_CLAMP
bpf: Adds support for setting window clamp
samples/bpf: Fix spelling mistake "recieving" -> "receiving"
bpf: Fix cold build of test_progs-no_alu32
...
====================
Link: https://lore.kernel.org/r/20201204021936.85653-1-alexei.starovoitov@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Roman Gushchin
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bcfe06bf26 |
mm: memcontrol: Use helpers to read page's memcg data
Patch series "mm: allow mapping accounted kernel pages to userspace", v6. Currently a non-slab kernel page which has been charged to a memory cgroup can't be mapped to userspace. The underlying reason is simple: PageKmemcg flag is defined as a page type (like buddy, offline, etc), so it takes a bit from a page->mapped counter. Pages with a type set can't be mapped to userspace. But in general the kmemcg flag has nothing to do with mapping to userspace. It only means that the page has been accounted by the page allocator, so it has to be properly uncharged on release. Some bpf maps are mapping the vmalloc-based memory to userspace, and their memory can't be accounted because of this implementation detail. This patchset removes this limitation by moving the PageKmemcg flag into one of the free bits of the page->mem_cgroup pointer. Also it formalizes accesses to the page->mem_cgroup and page->obj_cgroups using new helpers, adds several checks and removes a couple of obsolete functions. As the result the code became more robust with fewer open-coded bit tricks. This patch (of 4): Currently there are many open-coded reads of the page->mem_cgroup pointer, as well as a couple of read helpers, which are barely used. It creates an obstacle on a way to reuse some bits of the pointer for storing additional bits of information. In fact, we already do this for slab pages, where the last bit indicates that a pointer has an attached vector of objcg pointers instead of a regular memcg pointer. This commits uses 2 existing helpers and introduces a new helper to converts all read sides to calls of these helpers: struct mem_cgroup *page_memcg(struct page *page); struct mem_cgroup *page_memcg_rcu(struct page *page); struct mem_cgroup *page_memcg_check(struct page *page); page_memcg_check() is intended to be used in cases when the page can be a slab page and have a memcg pointer pointing at objcg vector. It does check the lowest bit, and if set, returns NULL. page_memcg() contains a VM_BUG_ON_PAGE() check for the page not being a slab page. To make sure nobody uses a direct access, struct page's mem_cgroup/obj_cgroups is converted to unsigned long memcg_data. Signed-off-by: Roman Gushchin <guro@fb.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Reviewed-by: Shakeel Butt <shakeelb@google.com> Acked-by: Johannes Weiner <hannes@cmpxchg.org> Acked-by: Michal Hocko <mhocko@suse.com> Link: https://lkml.kernel.org/r/20201027001657.3398190-1-guro@fb.com Link: https://lkml.kernel.org/r/20201027001657.3398190-2-guro@fb.com Link: https://lore.kernel.org/bpf/20201201215900.3569844-2-guro@fb.com |
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Chuck Lever
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156708adf2 |
SUNRPC: Move the svc_xdr_recvfrom() tracepoint
Commit
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Chuck Lever
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b704be09dc |
svcrdma: Clean up chunk tracepoints
We already have trace_svcrdma_decode_rseg(), which records each
ingress Read segment. Instead of reporting those again when they
are about to be posted as RDMA Reads, let's fire one tracepoint
before posting each type of chunk.
So we'll get:
nfsd-1998 [002] 321.666615: svcrdma_decode_rseg: cq.id=4 cid=42 segno=0 position=0 192@0x013ca9ebfae14000:0xb0010b05
nfsd-1998 [002] 321.666615: svcrdma_decode_rseg: cq.id=4 cid=42 segno=1 position=0 7688@0x013ca9ebf914e000:0xb0010a05
nfsd-1998 [002] 321.666615: svcrdma_decode_rseg: cq.id=4 cid=42 segno=2 position=0 28@0x013ca9ebfae15000:0xb0010905
nfsd-1998 [002] 321.666622: svcrdma_decode_rqst: cq.id=4 cid=42 xid=0x013ca9eb vers=1 credits=128 proc=RDMA_NOMSG hdrlen=100
nfsd-1998 [002] 321.666642: svcrdma_post_read_chunk: cq.id=3 cid=112 sqecount=3
kworker/2:1H-221 [002] 321.673949: svcrdma_wc_read: cq.id=3 cid=112 status=SUCCESS (0/0x0)
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
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Chuck Lever
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2371bcc056 |
svcrdma: Support multiple Write chunks in svc_rdma_map_reply_msg()
Refactor: svc_rdma_map_reply_msg() is restructured to DMA map only the parts of rq_res that do not contain a result payload. This change has been tested to confirm that it does not cause a regression in the no Write chunk and single Write chunk cases. Multiple Write chunks have not been tested. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> |
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Chuck Lever
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9d0b09d5ef |
svcrdma: Support multiple write chunks when pulling up
When counting the number of SGEs needed to construct a Send request, do not count result payloads. And, when copying the Reply message into the pull-up buffer, result payloads are not to be copied to the Send buffer. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> |
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Chuck Lever
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6911f3e10c |
svcrdma: Use parsed chunk lists to encode Reply transport headers
Refactor: Instead of re-parsing the ingress RPC Call transport header when constructing the egress RPC Reply transport header, use the new parsed Write list and Reply chunk, which are version- agnostic and already XDR decoded. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> |
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Chuck Lever
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78147ca8b4 |
svcrdma: Add a "parsed chunk list" data structure
This simple data structure binds the location of each data payload inside of an RPC message to the chunk that will be used to push it to or pull it from the client. There are several benefits to this small additional overhead: * It enables support for more than one chunk in incoming Read and Write lists. * It translates the version-specific on-the-wire format into a generic in-memory structure, enabling support for multiple versions of the RPC/RDMA transport protocol. * It enables the server to re-organize a chunk list if it needs to adjust where Read chunk data lands in server memory without altering the contents of the XDR-encoded Receive buffer. Construction of these lists is done while sanity checking each incoming RPC/RDMA header. Subsequent patches will make use of the generated data structures. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> |
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Kuninori Morimoto
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9e8434a008
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ASoC: soc-core: tidyup jack.h
soc-core.c don't need sound/jack.h anymore, but asoc.h needs it. This patch fixup header magic. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Link: https://lore.kernel.org/r/87y2iju3zm.wl-kuninori.morimoto.gx@renesas.com Signed-off-by: Mark Brown <broonie@kernel.org> |
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Hui Su
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fdeb17c70c |
trace: fix potenial dangerous pointer
The bdi_dev_name() returns a char [64], and
the __entry->name is a char [32].
It maybe dangerous to TP_printk("%s", __entry->name)
after the strncpy().
CC: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20201124165205.GA23937@rlk
Acked-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Hui Su <sh_def@163.com>
Signed-off-by: Jan Kara <jack@suse.cz>
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Jaegeuk Kim
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69a314d6a1 |
scsi: ufs: Add more contexts in the ufs tracepoints
This adds user-friendly tracepoints with group id. Link: https://lore.kernel.org/r/20201117165839.1643377-6-jaegeuk@kernel.org Reviewed-by: Can Guo <cang@codeaurora.org> Signed-off-by: Jaegeuk Kim <jaegeuk@google.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> |
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Linus Torvalds
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ce228d4594 |
Just one quick fix for a tracing oops.
-----BEGIN PGP SIGNATURE----- iQJJBAABCAAzFiEEYtFWavXG9hZotryuJ5vNeUKO4b4FAl+1NJsVHGJmaWVsZHNA ZmllbGRzZXMub3JnAAoJECebzXlCjuG+n8IQAJKpsrWNOW2vzXui9Rx7ne9OWYaD 7V3TuFPyUvRa7fZthGzHjZHKlNCmQtwCCzm/VqVsrFvMsfGZjIkawGz3bwF8m0im jU5DTHVo+RDGZf1eYfHw7QPmyOjkyLJ5NFRS4Hak6TcGM/koWwh1Zx1bFbjdYilx saTmKh/AOzSoGc6TeWecQ0WHPLEbGKvzR2np6pxS2gCZCr300YxtPkLsaPCyIhvc BKV7QMGTE5fDE8W3rgLH0qgd8Ojt0dS9AAdOCxHSvRX7YosgspHxJUHjf5yVXcpk 1dwCGbaqDb65+q83Ysobju6vagtQMagseFhaAIoRTUxWKatnajEIP31edyLbA01f xOtKnG6hJDL9HbcfjUk2bPOQm3fBnFndzamqd+I+dviOd6HaedyS8XpdgqBeEPba ZPoXd5Vhx+RzrD0dHTU+2/QnBOE/jSGBTS/kJEO7eksYRkQ3KP6yBSJkEQgBPmea yRZxsGrnQsCBBZB6ba5g/B6CCSoWPnMwK2cBf7AXBPdvDGJsm+13enhmcEhgfa1Q KyJn8iuPvxiivJvlJQPbPGbd/OsBeKG6xc1POt+QsmcDIO0tQSb8jCwsVTeA119F TwhvuKbvPJPsftld4pmWtTgKlRuR0j6lqZni/5wFLOZXnYs42VnQ/h4EaGAaV4pW gt9fC8XbW7bnplHC =R7xS -----END PGP SIGNATURE----- Merge tag 'nfsd-5.10-2' of git://linux-nfs.org/~bfields/linux Pull nfsd fix from Bruce Fields: "Just one quick fix for a tracing oops" * tag 'nfsd-5.10-2' of git://linux-nfs.org/~bfields/linux: SUNRPC: Fix oops in the rpc_xdr_buf event class |
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Gabriel Krisman Bertazi
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524666cb5d |
tracepoints: Migrate to use SYSCALL_WORK flag
On architectures using the generic syscall entry code the architecture independent syscall work is moved to flags in thread_info::syscall_work. This removes architecture dependencies and frees up TIF bits. Define SYSCALL_WORK_SYSCALL_TRACEPOINT, use it in the generic entry code and convert the code which uses the TIF specific helper functions to use the new *_syscall_work() helpers which either resolve to the new mode for users of the generic entry code or to the TIF based functions for the other architectures. Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Andy Lutomirski <luto@kernel.org> Link: https://lore.kernel.org/r/20201116174206.2639648-6-krisman@collabora.com |
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Peter Xu
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fb04a1eddb |
KVM: X86: Implement ring-based dirty memory tracking
This patch is heavily based on previous work from Lei Cao <lei.cao@stratus.com> and Paolo Bonzini <pbonzini@redhat.com>. [1] KVM currently uses large bitmaps to track dirty memory. These bitmaps are copied to userspace when userspace queries KVM for its dirty page information. The use of bitmaps is mostly sufficient for live migration, as large parts of memory are be dirtied from one log-dirty pass to another. However, in a checkpointing system, the number of dirty pages is small and in fact it is often bounded---the VM is paused when it has dirtied a pre-defined number of pages. Traversing a large, sparsely populated bitmap to find set bits is time-consuming, as is copying the bitmap to user-space. A similar issue will be there for live migration when the guest memory is huge while the page dirty procedure is trivial. In that case for each dirty sync we need to pull the whole dirty bitmap to userspace and analyse every bit even if it's mostly zeros. The preferred data structure for above scenarios is a dense list of guest frame numbers (GFN). This patch series stores the dirty list in kernel memory that can be memory mapped into userspace to allow speedy harvesting. This patch enables dirty ring for X86 only. However it should be easily extended to other archs as well. [1] https://patchwork.kernel.org/patch/10471409/ Signed-off-by: Lei Cao <lei.cao@stratus.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Peter Xu <peterx@redhat.com> Message-Id: <20201001012222.5767-1-peterx@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
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Scott Mayhew
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c3213d260a |
SUNRPC: Fix oops in the rpc_xdr_buf event class
Backchannel rpc tasks don't have task->tk_client set, so it's necessary
to check it for NULL before dereferencing.
Fixes:
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Chuck Lever
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8e24e191d4 |
xprtrdma: Trace unmap_sync calls
->buf_free is called nearly once per RPC. Only rarely does xprt_rdma_free() have to do anything, thus tracing every one of these calls seems unnecessary. Instead, just throw a trace event when that one occasional RPC still has MRs that need to be released. xprt_rdma_free() is further micro-optimized to reduce the amount of work done in the common case. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com> |
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Chuck Lever
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7703db978d |
xprtrdma: Display the task ID when reporting MR events
Tie each MR event to the requesting rpc_task to make it easier to follow MR ownership and control flow. MR unmapping and recycling can happen in the background, after an MR's mr_req field is stale, so set up a separate tracepoint class for those events. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com> |
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Chuck Lever
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0307cdec7c |
xprtrdma: Clean up trace_xprtrdma_nomrs()
- Rename it following the "_err" suffix convention - Replace display of kernel memory addresses - Tie MR exhaustion to a peer IP address, similar to the createmrs tracepoint Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com> |
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Chuck Lever
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d11e934606 |
xprtrdma: Clean up xprtrdma callback tracepoints
- Replace displayed kernel memory addresses - Tie the XID and event with the peer's IP address Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com> |