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https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
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1143474 commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Hans Verkuil
|
73278d4833 |
media: v4l2-ctrls-api.c: add back dropped ctrl->is_new = 1
The patch adding support for dynamically allocated arrays accidentally
dropped the line setting ctrl->is_new to 1, thus new string values were
always ignored.
Fixes:
|
||
|
Linus Torvalds
|
cdb9d35377 |
media updates for v6.2-rc1
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Merge tag 'media/v6.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media updates from Mauro Carvalho Chehab:
- DVB core changes to avoid refcount troubles and UAF
- DVB API/core has gained support for DVB-C2 and DVB-S2X
- New sensor drivers: ov08x40, ov4689.c, st-vgxy61 and tc358746.c
- Removal of an unused sensor driver: s5k4ecgx
- Move microchip_csi2dc to a new directory, named after the
manufacturer
- Add media controller support to Microship drivers
- Old Atmel/Microship drivers that don't use media controler got moved
to staging
- New drivers added for Renesas RZ/G2L CRU and MIPI CSI-2 support
- Allwinner A31 camera sensor driver code was now split into a bridge
and a separate processor driver
- Added a virtual stateless decoder driver in order to test core
support for stateless drivers and test userspace apps using it
- removed platform-based support for ov9650, as this is not used
anymore
- atomisp now uses videobuf2 and supports normal mmap mode
- the imx7-media-csi driver got promoted from staging
- rcar-vin driver has gained support for gen3 UDS (Up Down Scaler)
- most i2c drivers now use I2C .probe_new() kAPI
- lots of drivers fixes, cleanups and improvements
* tag 'media/v6.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (544 commits)
media: s5c73m3: Switch to GPIO descriptors
media: i2c: s5k5baf: switch to using gpiod API
media: i2c: s5k6a3: switch to using gpiod API
media: imx: remove code for non-existing config IMX_GPT_ICAP
media: si470x: Fix use-after-free in si470x_int_in_callback()
media: staging: stkwebcam: Restore MEDIA_{USB,CAMERA}_SUPPORT dependencies
media: coda: Add check for kmalloc
media: coda: Add check for dcoda_iram_alloc
dt-bindings: media: s5c73m3: Fix reset-gpio descriptor
media: dt-bindings: allwinner: h6-vpu-g2: Add IOMMU reference property
media: s5k4ecgx: Delete driver
media: s5k4ecgx: Switch to GPIO descriptors
media: Switch to use dev_err_probe() helper
headers: Remove some left-over license text in include/uapi/linux/v4l2-*
headers: Remove some left-over license text in include/uapi/linux/dvb/
media: usb: pwc-uncompress: Use flex array destination for memcpy()
media: s5p-mfc: Fix to handle reference queue during finishing
media: s5p-mfc: Clear workbit to handle error condition
media: s5p-mfc: Fix in register read and write for H264
media: imx: Use get_mbus_config instead of parsing upstream DT endpoints
...
|
||
|
Linus Torvalds
|
102f9d3d45 |
sound updates for 6.2-rc1
This looks like a relatively calm development cycle; there have been
only few changes in ALSA and ASoC core sides while we get lots of
device-specific fixes and updates as usual. Most of commits are about
ASoC, including Intel SOF/AVS and many device tree updates.
Below are some highlights:
Core:
- Improvement in memalloc helper for fallback allocations
- More cleanups of ASoC DAPM code
ASoC:
- Factoring out of mapping hw_params onto SoundWire configuration
- The ever ongoing overhauls of the Intel DSP code continue, including
support for loading libraries and probes with IPC4 on SOF.
- Support for more sample formats on JZ4740
- Lots of device tree conversions and fixups
- Support for Allwinner D1, a range of AMD and Intel systems, Mediatek
systems with multiple DMICs, Nuvoton NAU8318, NXP fsl_rpmsg and
i.MX93, Qualcomm AudioReach Enable, MFC and SAL, RealTek RT1318 and
Rockchip RK3588
ALSA:
- Addition of PCM kselftest; still minimalistic but can be extended
in future
- Fixes for corner-case XRUNs with USB-audio implicit feedback mode
- Usual device-specific quirk updates for USB- and HD-audio
- FireWire DICE updates
Also, this PR also contains a few cross-tree updates:
- Some OMAP board file updates for removal of relevant OMAP platforms
- A new I2C API update for I2C probe API adaption
- A DRM update for the further hdmi-codec updates
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Merge tag 'sound-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound updates from Takashi Iwai:
"This looks like a relatively calm development cycle; there have been
only few changes in ALSA and ASoC core sides while we get lots of
device-specific fixes and updates as usual. Most of commits are about
ASoC, including Intel SOF/AVS and many device tree updates.
Below are some highlights:
Core:
- Improvement in memalloc helper for fallback allocations
- More cleanups of ASoC DAPM code
ASoC:
- Factoring out of mapping hw_params onto SoundWire configuration
- The ever ongoing overhauls of the Intel DSP code continue,
including support for loading libraries and probes with IPC4 on
SOF.
- Support for more sample formats on JZ4740
- Lots of device tree conversions and fixups
- Support for Allwinner D1, a range of AMD and Intel systems,
Mediatek systems with multiple DMICs, Nuvoton NAU8318, NXP
fsl_rpmsg and i.MX93, Qualcomm AudioReach Enable, MFC and SAL,
RealTek RT1318 and Rockchip RK3588
ALSA:
- Addition of PCM kselftest; still minimalistic but can be extended
in future
- Fixes for corner-case XRUNs with USB-audio implicit feedback mode
- Usual device-specific quirk updates for USB- and HD-audio
- FireWire DICE updates
This also contains a few cross-tree updates:
- Some OMAP board file updates for removal of relevant OMAP platforms
- A new I2C API update for I2C probe API adaption
- A DRM update for the further hdmi-codec updates"
* tag 'sound-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (417 commits)
ALSA: mts64: fix possible null-ptr-defer in snd_mts64_interrupt
ALSA: patch_realtek: Fix Dell Inspiron Plus 16
ALSA: hda/cirrus: Add extra 10 ms delay to allow PLL settle and lock.
ASoC: dt-bindings: Correct Alexandre Belloni email
ASoC: dt-bindings: maxim,max98504: Convert to DT schema
ASoC: dt-bindings: maxim,max98357a: Convert to DT schema
ASoC: dt-bindings: Reference common DAI properties
ASoC: dt-bindings: Extend name-prefix.yaml into common DAI properties
ASoC: rt715: Make read-only arrays capture_reg_H and capture_reg_L static const
ASoC: uniphier: aio-core: Make some read-only arrays static const
ASoC: wcd938x: Make read-only array minCode_param static const
ASoC: qcom: lpass-sc7280: Add maybe_unused tag for system PM ops
ASoC : SOF: amd: Add support for IPC and DSP dumps
ASoC: SOF: amd: Use poll function instead to read ACP_SHA_DSP_FW_QUALIFIER
ALSA: usb-audio: Workaround for XRUN at prepare
ALSA: pcm: Handle XRUN at trigger START
ALSA: pcm: Set missing stop_operating flag at undoing trigger start
drm: tda99x: Don't advertise non-existent capture support
ASoC: hdmi-codec: Allow playback and capture to be disabled
kselftest/alsa: Add more coverage of sample rates and channel counts
...
|
||
|
Linus Torvalds
|
8715c6d310 |
- Fix use-after-free races due to missing resource cleanup during DM
target destruction in DM targets: thin-pool, cache, integrity and clone. - Fix ABBA deadlocks in DM thin-pool and cache targets due to their use of a bufio client (that has a shrinker whose locking can cause the incorrect locking order). - Fix DM cache target to set its needs_check flag after first aborting the metadata (whereby using reset persistent-data objects to update the superblock with, otherwise the superblock update could be dropped due to aborting metadata). This was found with code-inspection when comparing with the equivalent in DM thinp code. - Fix DM thin-pool's presume to continue resuming the device even if the pool in is fail mode -- otherwise bios may never be failed up the IO stack (which will prevent resetting the thin-pool target via table reload) - Fix DM thin-pool's metadata to use proper btree root (from previous transaction) if metadata commit failed. - Add 'waitfor' module param to DM module (dm_mod) to allow dm-init to wait for the specified device before continuing with its DM target initialization. -----BEGIN PGP SIGNATURE----- iQEzBAABCAAdFiEEJfWUX4UqZ4x1O2wixSPxCi2dA1oFAmOXp8IACgkQxSPxCi2d A1rS2wf/VF82dcQpsAAT05L6j6xqo/eUe3Q3AZYbJGRl1Kg41NE/YRA1A/lsxykO j3wZut5UyL0ZEsjHhhUMC8rOeexfyqiecVdMofuQRkKJYa4l85IbPBE2qOMi/Ida WMsZg8bmm01hDPpZRUwj7L5BRDJlB0n9hdtkh16K0gboiaPZxmIEtum0IYr8krPj hOv6amx9MhrsiUcVWylFipmxTgpsxwwg67g2R6tCGUmHQhxHKFInvySrYdv5hYdy 3kr1pxy87Wn3oETrHNNc506qh6QK85mOC+D/VdNNzNnM6yhgOEkE9lSS/Er2rHyT D6Af4j5SIBy/srv5DjcWd7pi4NHIBA== =fuDb -----END PGP SIGNATURE----- Merge tag 'for-6.2/dm-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm Pull device mapper updates from Mike Snitzer: - Fix use-after-free races due to missing resource cleanup during DM target destruction in DM targets: thin-pool, cache, integrity and clone. - Fix ABBA deadlocks in DM thin-pool and cache targets due to their use of a bufio client (that has a shrinker whose locking can cause the incorrect locking order). - Fix DM cache target to set its needs_check flag after first aborting the metadata (whereby using reset persistent-data objects to update the superblock with, otherwise the superblock update could be dropped due to aborting metadata). This was found with code-inspection when comparing with the equivalent in DM thinp code. - Fix DM thin-pool's presume to continue resuming the device even if the pool in is fail mode -- otherwise bios may never be failed up the IO stack (which will prevent resetting the thin-pool target via table reload) - Fix DM thin-pool's metadata to use proper btree root (from previous transaction) if metadata commit failed. - Add 'waitfor' module param to DM module (dm_mod) to allow dm-init to wait for the specified device before continuing with its DM target initialization. * tag 'for-6.2/dm-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm: dm thin: Use last transaction's pmd->root when commit failed dm init: add dm-mod.waitfor to wait for asynchronously probed block devices dm ioctl: fix a couple ioctl codes dm ioctl: a small code cleanup in list_version_get_info dm thin: resume even if in FAIL mode dm cache: set needs_check flag after aborting metadata dm cache: Fix ABBA deadlock between shrink_slab and dm_cache_metadata_abort dm thin: Fix ABBA deadlock between shrink_slab and dm_pool_abort_metadata dm integrity: Fix UAF in dm_integrity_dtr() dm cache: Fix UAF in destroy() dm clone: Fix UAF in clone_dtr() dm thin: Fix UAF in run_timer_softirq() |
||
|
Linus Torvalds
|
8ecd28b7a3 |
ata changes for 6.2
ata changes fro 6.2 include the ususal set of driver fixes and
improvements as well as several patches improving libata core in
preparation of the introduction of the support for the command duration
limits feature. In more details:
- Define the missing COMPLETED sense key in scsi header (from me).
- Several patches to improve libata handling of the status of
completed commands and the retry and sense data reported to the scsi
layer for failed commands. In particular, this widen the support for
NCQ autosense to all drives that support this feature instead of
restricting this feature use to ZAC drives only (from Niklas).
- Cleanup of the pata_mpc52xx and sata_dwc_460ex drivers to remove the
use of the deprecated NO_IRQ macro (from Christophe).
- Fix build dedependency on OF vs use of the of_match_ptr() macro to
avoid build errors with the sata_gemini and pata_ftide010 drivers
(from me).
- Some libata cleanups using the new helper function
ata_port_is_frozen() (from Niklas).
- Improve internal command handling by not retrying commands that
failed with a timeout (from Niklas).
- Remove code for several unused libata helper functions (from
Niklas).
- Remove the palmchip pata_bk3710 driver. A couple of other driver
removal should come in through the arm tree pull request (from
Arnd).
- Remove unused variable and function in the sata_dwc_460ex driver and
libata-sff code (from Colin and Sergey).
- Minor cleanup of the pata_ep93xx driver platform code (from
Minghao).
- Remove the unnecessary linux/msi.h include from the ahci driver
(from Thomas).
- Changes to libata enum constants definitions to avoid warnings with
gcc-13 (from Arnd).
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Merge tag 'ata-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata
Pull ata updates from Damien Le Moal:
"The ususal set of driver fixes and improvements as well as several
patches improving libata core in preparation of the introduction of
the support for the command duration limits feature. In more details:
- Define the missing COMPLETED sense key in scsi header (me)
- Several patches to improve libata handling of the status of
completed commands and the retry and sense data reported to the
scsi layer for failed commands. In particular, this widen the
support for NCQ autosense to all drives that support this feature
instead of restricting this feature use to ZAC drives only (Niklas)
- Cleanup of the pata_mpc52xx and sata_dwc_460ex drivers to remove
the use of the deprecated NO_IRQ macro (Christophe)
- Fix build dedependency on OF vs use of the of_match_ptr() macro to
avoid build errors with the sata_gemini and pata_ftide010 drivers
(me)
- Some libata cleanups using the new helper function
ata_port_is_frozen() (Niklas)
- Improve internal command handling by not retrying commands that
failed with a timeout (Niklas)
- Remove code for several unused libata helper functions (from
Niklas)
- Remove the palmchip pata_bk3710 driver. A couple of other driver
removal should come in through the arm tree pull request (from
Arnd)
- Remove unused variable and function in the sata_dwc_460ex driver
and libata-sff code (Colin and Sergey)
- Minor cleanup of the pata_ep93xx driver platform code (from
Minghao)
- Remove the unnecessary linux/msi.h include from the ahci driver
(Thomas)
- Changes to libata enum constants definitions to avoid warnings with
gcc-13 (Arnd)"
* tag 'ata-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata: (24 commits)
ata: ahci: fix enum constants for gcc-13
ata: libata: fix commands incorrectly not getting retried during NCQ error
ata: ahci: Remove linux/msi.h include
ata: sata_dwc_460ex: Check !irq instead of irq == NO_IRQ
ata: pata_ep93xx: use devm_platform_get_and_ioremap_resource()
ata: libata-sff: kill unused ata_sff_busy_sleep()
ata: sata_dwc_460ex: remove variable num_processed
ata: remove palmchip pata_bk3710 driver
ata: remove unused helper ata_id_flush_ext_enabled()
ata: remove unused helper ata_id_flush_enabled()
ata: remove unused helper ata_id_lba48_enabled()
ata: libata-core: do not retry reading the log on timeout
scsi: libsas: make use of ata_port_is_frozen() helper
ata: make use of ata_port_is_frozen() helper
ata: add ata_port_is_frozen() helper
ata: pata_ftide010: Remove build dependency on OF
ata: sata_gemini: Remove dependency on OF for compile tests
ata: pata_mpc52xx: Replace NO_IRQ with 0
ata: libahci: read correct status and error field for NCQ commands
ata: libata: fetch sense data for ATA devices supporting sense reporting
...
|
||
|
Linus Torvalds
|
ce8a79d560 |
for-6.2/block-2022-12-08
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Merge tag 'for-6.2/block-2022-12-08' of git://git.kernel.dk/linux
Pull block updates from Jens Axboe:
- NVMe pull requests via Christoph:
- Support some passthrough commands without CAP_SYS_ADMIN (Kanchan
Joshi)
- Refactor PCIe probing and reset (Christoph Hellwig)
- Various fabrics authentication fixes and improvements (Sagi
Grimberg)
- Avoid fallback to sequential scan due to transient issues (Uday
Shankar)
- Implement support for the DEAC bit in Write Zeroes (Christoph
Hellwig)
- Allow overriding the IEEE OUI and firmware revision in configfs
for nvmet (Aleksandr Miloserdov)
- Force reconnect when number of queue changes in nvmet (Daniel
Wagner)
- Minor fixes and improvements (Uros Bizjak, Joel Granados, Sagi
Grimberg, Christoph Hellwig, Christophe JAILLET)
- Fix and cleanup nvme-fc req allocation (Chaitanya Kulkarni)
- Use the common tagset helpers in nvme-pci driver (Christoph
Hellwig)
- Cleanup the nvme-pci removal path (Christoph Hellwig)
- Use kstrtobool() instead of strtobool (Christophe JAILLET)
- Allow unprivileged passthrough of Identify Controller (Joel
Granados)
- Support io stats on the mpath device (Sagi Grimberg)
- Minor nvmet cleanup (Sagi Grimberg)
- MD pull requests via Song:
- Code cleanups (Christoph)
- Various fixes
- Floppy pull request from Denis:
- Fix a memory leak in the init error path (Yuan)
- Series fixing some batch wakeup issues with sbitmap (Gabriel)
- Removal of the pktcdvd driver that was deprecated more than 5 years
ago, and subsequent removal of the devnode callback in struct
block_device_operations as no users are now left (Greg)
- Fix for partition read on an exclusively opened bdev (Jan)
- Series of elevator API cleanups (Jinlong, Christoph)
- Series of fixes and cleanups for blk-iocost (Kemeng)
- Series of fixes and cleanups for blk-throttle (Kemeng)
- Series adding concurrent support for sync queues in BFQ (Yu)
- Series bringing drbd a bit closer to the out-of-tree maintained
version (Christian, Joel, Lars, Philipp)
- Misc drbd fixes (Wang)
- blk-wbt fixes and tweaks for enable/disable (Yu)
- Fixes for mq-deadline for zoned devices (Damien)
- Add support for read-only and offline zones for null_blk
(Shin'ichiro)
- Series fixing the delayed holder tracking, as used by DM (Yu,
Christoph)
- Series enabling bio alloc caching for IRQ based IO (Pavel)
- Series enabling userspace peer-to-peer DMA (Logan)
- BFQ waker fixes (Khazhismel)
- Series fixing elevator refcount issues (Christoph, Jinlong)
- Series cleaning up references around queue destruction (Christoph)
- Series doing quiesce by tagset, enabling cleanups in drivers
(Christoph, Chao)
- Series untangling the queue kobject and queue references (Christoph)
- Misc fixes and cleanups (Bart, David, Dawei, Jinlong, Kemeng, Ye,
Yang, Waiman, Shin'ichiro, Randy, Pankaj, Christoph)
* tag 'for-6.2/block-2022-12-08' of git://git.kernel.dk/linux: (247 commits)
blktrace: Fix output non-blktrace event when blk_classic option enabled
block: sed-opal: Don't include <linux/kernel.h>
sed-opal: allow using IOC_OPAL_SAVE for locking too
blk-cgroup: Fix typo in comment
block: remove bio_set_op_attrs
nvmet: don't open-code NVME_NS_ATTR_RO enumeration
nvme-pci: use the tagset alloc/free helpers
nvme: add the Apple shared tag workaround to nvme_alloc_io_tag_set
nvme: only set reserved_tags in nvme_alloc_io_tag_set for fabrics controllers
nvme: consolidate setting the tagset flags
nvme: pass nr_maps explicitly to nvme_alloc_io_tag_set
block: bio_copy_data_iter
nvme-pci: split out a nvme_pci_ctrl_is_dead helper
nvme-pci: return early on ctrl state mismatch in nvme_reset_work
nvme-pci: rename nvme_disable_io_queues
nvme-pci: cleanup nvme_suspend_queue
nvme-pci: remove nvme_pci_disable
nvme-pci: remove nvme_disable_admin_queue
nvme: merge nvme_shutdown_ctrl into nvme_disable_ctrl
nvme: use nvme_wait_ready in nvme_shutdown_ctrl
...
|
||
|
Linus Torvalds
|
96f7e448b9 |
for-6.2/io_uring-next-2022-12-08
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||
|
Linus Torvalds
|
54e60e505d |
for-6.2/io_uring-2022-12-08
-----BEGIN PGP SIGNATURE----- iQJEBAABCAAuFiEEwPw5LcreJtl1+l5K99NY+ylx4KYFAmOSYp4QHGF4Ym9lQGtl cm5lbC5kawAKCRD301j7KXHgpgWNEADTcHejQ5y8Ctc1BEsCiEnCbR5DeIwESBKN SfK7uK5N5GjKZgKeMtkdxNeckH2wSZ79VFpz2/b4fszM11H+P81r/PP+OwQojcra 1YyPbp2jXlQZGEYijiXYDohnKr8NnJYj/nuwm4T73OPOD48ekbrY36/t3Hd75jKk M5L/HOpbKhA+fypPHYlm3XlwEM9/4wupsDeiabTuAeFpLh66V/h85ZLY91c3Bf7j yllzT2CCGQsh+fnqdovpsqUxM4Sh6sHfa2QhwkfJFfU9OLwDz0TLlcvSVwWWICD1 DGeDE/MPBKZ4Z5zp8t94vTnZDAiExwkZbmCOnOkdYoPdMDqCDhp8a9WywV3IiJJi +hRN6Au6BWw8Rj3b3pbobfdXFJAvoHqXHM1SDAsWmEIMpuMhNalIpYqtna9JwRDe KV2ERMpGOUpmvQiRaJa5Wtz6hlFetmuav6Ij9DWb5f8+NXikiFAXk4g6TtD1Z7Cb 15klwM8qW50zX7YUlzBLcjNdj7+HuIswLx0obZ3Uv1ogDwMQKXEvPaAHUwVN02q6 cWP0P2Bc0EKvdwTSNpgNflhNsiV2DFJZpZfxkdPauN4t2EkJ38iEpHewffy0ecM7 uyaXGQVQW7WFDuGno4cGbThQIG95MqkRPBhEyB4cOmcyS/aZ92ZFtV1iI8dVDA+v uuEIMc3OCA== =EgDc -----END PGP SIGNATURE----- Merge tag 'for-6.2/io_uring-2022-12-08' of git://git.kernel.dk/linux Pull io_uring updates from Jens Axboe: - Always ensure proper ordering in case of CQ ring overflow, which then means we can remove some work-arounds for that (Dylan) - Support completion batching for multishot, greatly increasing the efficiency for those (Dylan) - Flag epoll/eventfd wakeups done from io_uring, so that we can easily tell if we're recursing into io_uring again. Previously, this would have resulted in repeated multishot notifications if we had a dependency there. That could happen if an eventfd was registered as the ring eventfd, and we multishot polled for events on it. Or if an io_uring fd was added to epoll, and io_uring had a multishot request for the epoll fd. Test cases here: https://git.kernel.dk/cgit/liburing/commit/?id=919755a7d0096fda08fb6d65ac54ad8d0fe027cd Previously these got terminated when the CQ ring eventually overflowed, now it's handled gracefully (me). - Tightening of the IOPOLL based completions (Pavel) - Optimizations of the networking zero-copy paths (Pavel) - Various tweaks and fixes (Dylan, Pavel) * tag 'for-6.2/io_uring-2022-12-08' of git://git.kernel.dk/linux: (41 commits) io_uring: keep unlock_post inlined in hot path io_uring: don't use complete_post in kbuf io_uring: spelling fix io_uring: remove io_req_complete_post_tw io_uring: allow multishot polled reqs to defer completion io_uring: remove overflow param from io_post_aux_cqe io_uring: add lockdep assertion in io_fill_cqe_aux io_uring: make io_fill_cqe_aux static io_uring: add io_aux_cqe which allows deferred completion io_uring: allow defer completion for aux posted cqes io_uring: defer all io_req_complete_failed io_uring: always lock in io_apoll_task_func io_uring: remove iopoll spinlock io_uring: iopoll protect complete_post io_uring: inline __io_req_complete_put() io_uring: remove io_req_tw_post_queue io_uring: use io_req_task_complete() in timeout io_uring: hold locks for io_req_complete_failed io_uring: add completion locking for iopoll io_uring: kill io_cqring_ev_posted() and __io_cq_unlock_post() ... |
||
|
Linus Torvalds
|
d523ec4c6a |
New code for 6.2:
- Minor code cleanup to eliminate unnecessary bit shifting. Signed-off-by: Darrick J. Wong <djwong@kernel.org> -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEUzaAxoMeQq6m2jMV+H93GTRKtOsFAmNyit0ACgkQ+H93GTRK tOuz3w//cEyqr1N7qvZWiFt2zf0MneNnH/w2Ea8JqCvxLg5g+Ur3BMht/mx+shw/ oIVmnNR3CyAGaY0qcAAWTqq0+L01nCFECREmHAJ5JYk4RpjvBTlEluYabBzrn4RL 9hEJcwVqR+EH7lFHGFilrcZ8c1+r/wsZHj3TVQq7q6CMeY+uaolHxFK2sVU13jnw U+CEaGiy0ysb4eLqrWvK//xibgO1OFgHR940gWJdMDdER2j3MOGIT7mhbRIB+jYP Xxx8jGyxPZvB6R2lzu7RxFgxwxEOGUp5p4MZtiqwlhtE8PAxIkjvp1GlC0Tpgtkj 5eFt1tRdvAp/Gj5H4kWPhBTo6IYaVsnM9/UW60WaOeK2B6FtC9view89TPN0Riuc hMCaYI80EsUhoY4oKKI2SNDEaloeMi3wQ6a8lsHcG1RdFG51B5swsBQL2h5k8KW9 LNJU89bbApWWOHt6n4djwdp7Vm6Gzws6DCriTm8Mm+Jk4k69dvtkLEUNCV+acVRr TFnHM2Yj/uu1xFn1cU4db/qRxv9TUYEDrsp2TAIsK8vizTTcjkMjzAEKbZvUkeg/ Gg7Ffj4qV/nbCI3PuO+UfSuWff5NZ+U7/la/1UR9d3nMB8CkRaEDZnDh1HPjNGgN 6vxFafUdqKNuvYqWbvoZFgX+r+o7bM8NhoDxamVR2/CwY6Kuftg= =q2+n -----END PGP SIGNATURE----- Merge tag 'iomap-6.2-merge-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux Pull iomap update from Darrick Wong: - Minor code cleanup to eliminate unnecessary bit shifting * tag 'iomap-6.2-merge-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: iomap: directly use logical block size |
||
|
Linus Torvalds
|
a45a7db9bc |
New VFS code for 6.2:
- Make some minor adjustments to the remap range preparation function to skip file updates when the request length is adjusted downwards to zero. Signed-off-by: Darrick J. Wong <djwong@kernel.org> -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEUzaAxoMeQq6m2jMV+H93GTRKtOsFAmOHiQcACgkQ+H93GTRK tOsaSg/+K3s690Q0xBNbRJUsNOmI1xjRuJgwMvUgAkvBpiNfQXb7txClJgmja3Yl 082BT9rBS9+aUG7RZ/oSkvHlkQyYd8FuZ9HUBb3ykGJD3DSHMo33ldcg1Hkqx3MX 37xD2VokY2smNfH71SD6AjAdMCb70jpP1jaP2+rf9IIngAoeU/gTKqw+telgjYC1 dMh3tw7a+rMiOdU0fOREdlwyd0qw4dZuC+pYyCIFxoM/Kc3YOjh1gP/2ujxTQ4o+ FPnZvyDxuGoJEyOdAoCf+NXMlwX+hVNomG+O2UAiyKBXb9/anlO/xD3P1/4IEW84 0R9EMLEKYHQKRODGUwh2C3jK6+Zy20Ej/xzDXNByUUlvY98DIfb9OFBgR0VgZ//H hHe+PvOEjwpYr6QLBvycDc9nRxxmNzbRx1J2jZnuo2wRxc4aAU3iG4b6G6liBmUn mhuycyCciKLD5k1Y0WK+6LkhJp/Ab3Z3L2S6cCnHuJaOjVh6AbMu0CNvw7Y6uxJh VPxZEYkqrceymsKYdkzj0i+PTbOYBputjCsJFR9qFMxAyzzFxdxwT/pWgBmWvGOO F/3ekcYvQNxu4jpeFEXaujOrJJWD2SRAqTkpA/zrBF6E4FKcA7y1i3QQe8Oh4PUv FJDRNxq+uOhGPFxKckDp+x2Te1krmoa875bSdSfxaOfEl0DjqpU= =NSDD -----END PGP SIGNATURE----- Merge tag 'vfs-6.2-merge-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux Pull vfs remap_range update from Darrick Wong: - Make some minor adjustments to the remap range preparation function to skip file updates when the request length is adjusted downwards to zero. * tag 'vfs-6.2-merge-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: fs/remap_range: avoid spurious writeback on zero length request |
||
|
Linus Torvalds
|
02bf43c7b7 |
fs.xattr.simple.rework.rbtree.rwlock.v6.2
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Merge tag 'fs.xattr.simple.rework.rbtree.rwlock.v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/idmapping
Pull simple-xattr updates from Christian Brauner:
"This ports the simple xattr infrastucture to rely on a simple rbtree
protected by a read-write lock instead of a linked list protected by a
spinlock.
A while ago we received reports about scaling issues for filesystems
using the simple xattr infrastructure that also support setting a
larger number of xattrs. Specifically, cgroups and tmpfs.
Both cgroupfs and tmpfs can be mounted by unprivileged users in
unprivileged containers and root in an unprivileged container can set
an unrestricted number of security.* xattrs and privileged users can
also set unlimited trusted.* xattrs. A few more words on further that
below. Other xattrs such as user.* are restricted for kernfs-based
instances to a fairly limited number.
As there are apparently users that have a fairly large number of
xattrs we should scale a bit better. Using a simple linked list
protected by a spinlock used for set, get, and list operations doesn't
scale well if users use a lot of xattrs even if it's not a crazy
number.
Let's switch to a simple rbtree protected by a rwlock. It scales way
better and gets rid of the perf issues some people reported. We
originally had fancier solutions even using an rcu+seqlock protected
rbtree but we had concerns about being to clever and also that
deletion from an rbtree with rcu+seqlock isn't entirely safe.
The rbtree plus rwlock is perfectly fine. By far the most common
operation is getting an xattr. While setting an xattr is not and
should be comparatively rare. And listxattr() often only happens when
copying xattrs between files or together with the contents to a new
file.
Holding a lock across listxattr() is unproblematic because it doesn't
list the values of xattrs. It can only be used to list the names of
all xattrs set on a file. And the number of xattr names that can be
listed with listxattr() is limited to XATTR_LIST_MAX aka 65536 bytes.
If a larger buffer is passed then vfs_listxattr() caps it to
XATTR_LIST_MAX and if more xattr names are found it will return
-E2BIG. In short, the maximum amount of memory that can be retrieved
via listxattr() is limited and thus listxattr() bounded.
Of course, the API is broken as documented on xattr(7) already. While
I have no idea how the xattr api ended up in this state we should
probably try to come up with something here at some point. An iterator
pattern similar to readdir() as an alternative to listxattr() or
something else.
Right now it is extremly strange that users can set millions of xattrs
but then can't use listxattr() to know which xattrs are actually set.
And it's really trivial to do:
for i in {1..1000000}; do setfattr -n security.$i -v $i ./file1; done
And around 5000 xattrs it's impossible to use listxattr() to figure
out which xattrs are actually set. So I have suggested that we try to
limit the number of xattrs for simple xattrs at least. But that's a
future patch and I don't consider it very urgent.
A bonus of this port to rbtree+rwlock is that we shrink the memory
consumption for users of the simple xattr infrastructure.
This also adds kernel documentation to all the functions"
* tag 'fs.xattr.simple.rework.rbtree.rwlock.v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/idmapping:
xattr: use rbtree for simple_xattrs
|
||
|
Linus Torvalds
|
c76ff350bd |
lsm/stable-6.2 PR 20221212
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||
|
Linus Torvalds
|
57888f7b95 |
selinux/stable-6.2 PR 20221212
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||
|
Linus Torvalds
|
bbdf4d5461 |
audit/stable-6.2 PR 20221212
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Merge tag 'audit-pr-20221212' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit
Pull audit updates from Paul Moore:
"Two performance oriented patches for the audit subsystem: one
consolidates similar code to gain some caching advantages, while the
other stores a value in a stack variable to avoid repeated lookups in
a loop.
The commit descriptions have more information, including some
before/after performance measurements"
* tag 'audit-pr-20221212' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit:
audit: unify audit_filter_{uring(), inode_name(), syscall()}
audit: cache ctx->major in audit_filter_syscall()
|
||
|
Linus Torvalds
|
299e2b1967 |
Landlock updates for v6.2-rc1
-----BEGIN PGP SIGNATURE----- iIYEABYIAC4WIQSVyBthFV4iTW/VU1/l49DojIL20gUCY5b27RAcbWljQGRpZ2lr b2QubmV0AAoJEOXj0OiMgvbSg9YA/0K10H+VsGt1+qqR4+w9SM7SFzbgszrV3Yw9 rwiPgaPVAP9rxXPr2bD2hAk7/Lv9LeJ2kfM9RzMErP1A6UsC5YVbDA== =mAG7 -----END PGP SIGNATURE----- Merge tag 'landlock-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux Pull landlock updates from Mickaël Salaün: "This adds file truncation support to Landlock, contributed by Günther Noack. As described by Günther [1], the goal of these patches is to work towards a more complete coverage of file system operations that are restrictable with Landlock. The known set of currently unsupported file system operations in Landlock is described at [2]. Out of the operations listed there, truncate is the only one that modifies file contents, so these patches should make it possible to prevent the direct modification of file contents with Landlock. The new LANDLOCK_ACCESS_FS_TRUNCATE access right covers both the truncate(2) and ftruncate(2) families of syscalls, as well as open(2) with the O_TRUNC flag. This includes usages of creat() in the case where existing regular files are overwritten. Additionally, this introduces a new Landlock security blob associated with opened files, to track the available Landlock access rights at the time of opening the file. This is in line with Unix's general approach of checking the read and write permissions during open(), and associating this previously checked authorization with the opened file. An ongoing patch documents this use case [3]. In order to treat truncate(2) and ftruncate(2) calls differently in an LSM hook, we split apart the existing security_path_truncate hook into security_path_truncate (for truncation by path) and security_file_truncate (for truncation of previously opened files)" Link: https://lore.kernel.org/r/20221018182216.301684-1-gnoack3000@gmail.com [1] Link: https://www.kernel.org/doc/html/v6.1/userspace-api/landlock.html#filesystem-flags [2] Link: https://lore.kernel.org/r/20221209193813.972012-1-mic@digikod.net [3] * tag 'landlock-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux: samples/landlock: Document best-effort approach for LANDLOCK_ACCESS_FS_REFER landlock: Document Landlock's file truncation support samples/landlock: Extend sample tool to support LANDLOCK_ACCESS_FS_TRUNCATE selftests/landlock: Test ftruncate on FDs created by memfd_create(2) selftests/landlock: Test FD passing from restricted to unrestricted processes selftests/landlock: Locally define __maybe_unused selftests/landlock: Test open() and ftruncate() in multiple scenarios selftests/landlock: Test file truncation support landlock: Support file truncation landlock: Document init_layer_masks() helper landlock: Refactor check_access_path_dual() into is_access_to_paths_allowed() security: Create file_truncate hook from path_truncate hook |
||
|
Linus Torvalds
|
e529d3507a |
dma-mapping updates for Linux 2.6
- reduce the swiotlb buffer size on allocation failure
(Alexey Kardashevskiy)
- clean up passing of bogus GFP flags to the dma-coherent allocator
(Christoph Hellwig)
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Merge tag 'dma-mapping-6.2-2022-12-13' of git://git.infradead.org/users/hch/dma-mapping
Pull dma-mapping updates from Christoph Hellwig:
- reduce the swiotlb buffer size on allocation failure (Alexey
Kardashevskiy)
- clean up passing of bogus GFP flags to the dma-coherent allocator
(Christoph Hellwig)
* tag 'dma-mapping-6.2-2022-12-13' of git://git.infradead.org/users/hch/dma-mapping:
dma-mapping: reject __GFP_COMP in dma_alloc_attrs
ALSA: memalloc: don't pass bogus GFP_ flags to dma_alloc_*
s390/ism: don't pass bogus GFP_ flags to dma_alloc_coherent
cnic: don't pass bogus GFP_ flags to dma_alloc_coherent
RDMA/qib: don't pass bogus GFP_ flags to dma_alloc_coherent
RDMA/hfi1: don't pass bogus GFP_ flags to dma_alloc_coherent
media: videobuf-dma-contig: use dma_mmap_coherent
swiotlb: reduce the swiotlb buffer size on allocation failure
|
||
|
Linus Torvalds
|
6a24711d5c |
configfs updates for Linux 6.2
- fix a memory leak in configfs_create_dir (Chen Zhongjin)
- remove mentions of committable items that were implemented
(Bartosz Golaszewski)
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Merge tag 'configfs-6.2-2022-12-13' of git://git.infradead.org/users/hch/configfs
Pull configfs updates from Christoph Hellwig:
- fix a memory leak in configfs_create_dir (Chen Zhongjin)
- remove mentions of committable items that were implemented (Bartosz
Golaszewski)
* tag 'configfs-6.2-2022-12-13' of git://git.infradead.org/users/hch/configfs:
configfs: remove mentions of committable items
configfs: fix possible memory leak in configfs_create_dir()
|
||
|
Linus Torvalds
|
a044dab5e6 |
NFS client updates for Linux 6.2
Highlights include:
Bugfixes
- Fix a NULL pointer dereference in the mount parser
- Fix a memory stomp in decode_attr_security_label
- Fix a credential leak in _nfs4_discover_trunking()
- Fix a buffer leak in rpcrdma_req_create()
- Fix a leaked socket in rpc_sockname()
- Fix a deadlock between nfs4_open_recover_helper() and delegreturn
- Fix an Oops in nfs_d_automount()
- Fix a potential race in nfs_call_unlink()
- Multiple fixes for the open context mode
- NFSv4.2 READ_PLUS fixes
- Fix a regression in which small rsize/wsize values are being forbidden
- Fail client initialisation if the NFSv4.x state manager thread can't run
- avoid spurious warning of lost lock that is being unlocked.
- Ensure the initialisation of struct nfs4_label
Features and cleanups
- Trigger the "ls -l" readdir heuristic sooner
- Clear the file access cache upon login to ensure supplementary group
info is in sync between the client and server
- pnfs: Fix up the logging of layout stateids
- NFSv4.2: Change the default KConfig value for READ_PLUS
- Use sysfs_emit() instead of scnprintf() where appropriate
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Merge tag 'nfs-for-6.2-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
Pull NFS client updates from Trond Myklebust
"Bugfixes:
- Fix NULL pointer dereference in the mount parser
- Fix memory stomp in decode_attr_security_label
- Fix credential leak in _nfs4_discover_trunking()
- Fix buffer leak in rpcrdma_req_create()
- Fix leaked socket in rpc_sockname()
- Fix deadlock between nfs4_open_recover_helper() and delegreturn
- Fix an Oops in nfs_d_automount()
- Fix potential race in nfs_call_unlink()
- Multiple fixes for the open context mode
- NFSv4.2 READ_PLUS fixes
- Fix a regression in which small rsize/wsize values are being
forbidden
- Fail client initialisation if the NFSv4.x state manager thread
can't run
- Avoid spurious warning of lost lock that is being unlocked.
- Ensure the initialisation of struct nfs4_label
Features and cleanups:
- Trigger the "ls -l" readdir heuristic sooner
- Clear the file access cache upon login to ensure supplementary
group info is in sync between the client and server
- pnfs: Fix up the logging of layout stateids
- NFSv4.2: Change the default KConfig value for READ_PLUS
- Use sysfs_emit() instead of scnprintf() where appropriate"
* tag 'nfs-for-6.2-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: (24 commits)
NFSv4.2: Change the default KConfig value for READ_PLUS
NFSv4.x: Fail client initialisation if state manager thread can't run
fs: nfs: sysfs: use sysfs_emit() to instead of scnprintf()
NFS: use sysfs_emit() to instead of scnprintf()
NFS: Allow very small rsize & wsize again
NFSv4.2: Fix up READ_PLUS alignment
NFSv4.2: Set the correct size scratch buffer for decoding READ_PLUS
SUNRPC: Fix missing release socket in rpc_sockname()
xprtrdma: Fix regbuf data not freed in rpcrdma_req_create()
NFS: avoid spurious warning of lost lock that is being unlocked.
nfs: fix possible null-ptr-deref when parsing param
NFSv4: check FMODE_EXEC from open context mode in nfs4_opendata_access()
NFS: make sure open context mode have FMODE_EXEC when file open for exec
NFS4.x/pnfs: Fix up logging of layout stateids
NFS: Fix a race in nfs_call_unlink()
NFS: Fix an Oops in nfs_d_automount()
NFSv4: Fix a deadlock between nfs4_open_recover_helper() and delegreturn
NFSv4: Fix a credential leak in _nfs4_discover_trunking()
NFS: Trigger the "ls -l" readdir heuristic sooner
NFSv4.2: Fix initialisation of struct nfs4_label
...
|
||
|
Linus Torvalds
|
764822972d |
NFSD 6.2 Release Notes
This release introduces support for the CB_RECALL_ANY operation.
NFSD can send this operation to request that clients return any
delegations they choose. The server uses this operation to handle
low memory scenarios or indicate to a client when that client has
reached the maximum number of delegations the server supports.
The NFSv4.2 READ_PLUS operation has been simplified temporarily
whilst support for sparse files in local filesystems and the VFS is
improved.
Two major data structure fixes appear in this release:
* The nfs4_file hash table is replaced with a resizable hash table
to reduce the latency of NFSv4 OPEN operations.
* Reference counting in the NFSD filecache has been hardened against
races.
In furtherance of removing support for NFSv2 in a subsequent kernel
release, a new Kconfig option enables server-side support for NFSv2
to be left out of a kernel build.
MAINTAINERS has been updated to indicate that changes to fs/exportfs
should go through the NFSD tree.
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Merge tag 'nfsd-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux
Pull nfsd updates from Chuck Lever:
"This release introduces support for the CB_RECALL_ANY operation. NFSD
can send this operation to request that clients return any delegations
they choose. The server uses this operation to handle low memory
scenarios or indicate to a client when that client has reached the
maximum number of delegations the server supports.
The NFSv4.2 READ_PLUS operation has been simplified temporarily whilst
support for sparse files in local filesystems and the VFS is improved.
Two major data structure fixes appear in this release:
- The nfs4_file hash table is replaced with a resizable hash table to
reduce the latency of NFSv4 OPEN operations.
- Reference counting in the NFSD filecache has been hardened against
races.
In furtherance of removing support for NFSv2 in a subsequent kernel
release, a new Kconfig option enables server-side support for NFSv2 to
be left out of a kernel build.
MAINTAINERS has been updated to indicate that changes to fs/exportfs
should go through the NFSD tree"
* tag 'nfsd-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux: (49 commits)
NFSD: Avoid clashing function prototypes
SUNRPC: Fix crasher in unwrap_integ_data()
SUNRPC: Make the svc_authenticate tracepoint conditional
NFSD: Use only RQ_DROPME to signal the need to drop a reply
SUNRPC: Clean up xdr_write_pages()
SUNRPC: Don't leak netobj memory when gss_read_proxy_verf() fails
NFSD: add CB_RECALL_ANY tracepoints
NFSD: add delegation reaper to react to low memory condition
NFSD: add support for sending CB_RECALL_ANY
NFSD: refactoring courtesy_client_reaper to a generic low memory shrinker
trace: Relocate event helper files
NFSD: pass range end to vfs_fsync_range() instead of count
lockd: fix file selection in nlmsvc_cancel_blocked
lockd: ensure we use the correct file descriptor when unlocking
lockd: set missing fl_flags field when retrieving args
NFSD: Use struct_size() helper in alloc_session()
nfsd: return error if nfs4_setacl fails
lockd: set other missing fields when unlocking files
NFSD: Add an nfsd_file_fsync tracepoint
sunrpc: svc: Remove an unused static function svc_ungetu32()
...
|
||
|
Linus Torvalds
|
149c51f876 |
for-6.2-tag
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Merge tag 'for-6.2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs updates from David Sterba:
"This round there are a lot of cleanups and moved code so the diffstat
looks huge, otherwise there are some nice performance improvements and
an update to raid56 reliability.
User visible features:
- raid56 reliability vs performance trade off:
- fix destructive RMW for raid5 data (raid6 still needs work): do
full checksum verification for all data during RMW cycle, this
should prevent rewriting potentially corrupted data without
notice
- stripes are cached in memory which should reduce the performance
impact but still can hurt some workloads
- checksums are verified after repair again
- this is the last option without introducing additional features
(write intent bitmap, journal, another tree), the extra checksum
read/verification was supposed to be avoided by the original
implementation exactly for performance reasons but that caused
all the reliability problems
- discard=async by default for devices that support it
- implement emergency flush reserve to avoid almost all unnecessary
transaction aborts due to ENOSPC in cases where there are too many
delayed refs or delayed allocation
- skip block group synchronization if there's no change in used
bytes, can reduce transaction commit count for some workloads
Performance improvements:
- fiemap and lseek:
- overall speedup due to skipping unnecessary or duplicate
searches (-40% run time)
- cache some data structures and sharedness of extents (-30% run
time)
- send:
- faster backref resolution when finding clones
- cached leaf to root mapping for faster backref walking
- improved clone/sharing detection
- overall run time improvements (-70%)
Core:
- module initialization converted to a table of function pointers run
in a sequence
- preparation for fscrypt, extend passing file names across calls,
dir item can store encryption status
- raid56 updates:
- more accurate error tracking of sectors within stripe
- simplify recovery path and remove dedicated endio worker kthread
- simplify scrub call paths
- refactoring to support the extra data checksum verification
during RMW cycle
- tree block parentness checks consolidated and done at metadata read
time
- improved error handling
- cleanups:
- move a lot of code for better synchronization between kernel and
user space sources, split big files
- enum cleanups
- GFP flag cleanups
- header file cleanups, prototypes, dependencies
- redundant parameter cleanups
- inline extent handling simplifications
- inode parameter conversion
- data structure cleanups, reductions, renames, merges"
* tag 'for-6.2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: (249 commits)
btrfs: print transaction aborted messages with an error level
btrfs: sync some cleanups from progs into uapi/btrfs.h
btrfs: do not BUG_ON() on ENOMEM when dropping extent items for a range
btrfs: fix extent map use-after-free when handling missing device in read_one_chunk
btrfs: remove outdated logic from overwrite_item() and add assertion
btrfs: unify overwrite_item() and do_overwrite_item()
btrfs: replace strncpy() with strscpy()
btrfs: fix uninitialized variable in find_first_clear_extent_bit
btrfs: fix uninitialized parent in insert_state
btrfs: add might_sleep() annotations
btrfs: add stack helpers for a few btrfs items
btrfs: add nr_global_roots to the super block definition
btrfs: remove BTRFS_LEAF_DATA_OFFSET
btrfs: add helpers for manipulating leaf items and data
btrfs: add eb to btrfs_node_key_ptr_offset
btrfs: pass the extent buffer for the btrfs_item_nr helpers
btrfs: move the csum helpers into ctree.h
btrfs: move eb offset helpers into extent_io.h
btrfs: move file_extent_item helpers into file-item.h
btrfs: move leaf_data_end into ctree.c
...
|
||
|
Linus Torvalds
|
97971df811 |
dlm for 6.2
These patches include the usual cleanups and minor fixes, the removal of
code that is no longer needed due to recent improvements, and
improvements to processing large volumes of messages during heavy
locking activity.
- Misc code cleanup.
- Fix a couple socket handling bugs: a double release on an error path
and a data-ready race in an accept loop.
- Remove code for resending dir-remove messages. This code is no longer
needed since the midcomms layer now ensures the messages are resent if
needed.
- Add tracepoints for dlm messages.
- Improve callback queueing by replacing the fixed array with a list.
- Simplify the handling of a remove message followed by a lookup
message by sending both without releasing a spinlock in between.
- Improve the concurrency of sending and receiving messages by holding
locks for a shorter time, and changing how workqueues are used.
- Remove old code for shutting down sockets, which is no longer needed
with the reliable connection handling that was recently added.
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Merge tag 'dlm-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm
Pull dlm updates from David Teigland:
"These patches include the usual cleanups and minor fixes, the removal
of code that is no longer needed due to recent improvements, and
improvements to processing large volumes of messages during heavy
locking activity.
Summary:
- Misc code cleanup
- Fix a couple of socket handling bugs: a double release on an error
path and a data-ready race in an accept loop
- Remove code for resending dir-remove messages. This code is no
longer needed since the midcomms layer now ensures the messages are
resent if needed
- Add tracepoints for dlm messages
- Improve callback queueing by replacing the fixed array with a list
- Simplify the handling of a remove message followed by a lookup
message by sending both without releasing a spinlock in between
- Improve the concurrency of sending and receiving messages by
holding locks for a shorter time, and changing how workqueues are
used
- Remove old code for shutting down sockets, which is no longer
needed with the reliable connection handling that was recently
added"
* tag 'dlm-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm: (37 commits)
fs: dlm: fix building without lockdep
fs: dlm: parallelize lowcomms socket handling
fs: dlm: don't init error value
fs: dlm: use saved sk_error_report()
fs: dlm: use sock2con without checking null
fs: dlm: remove dlm_node_addrs lookup list
fs: dlm: don't put dlm_local_addrs on heap
fs: dlm: cleanup listen sock handling
fs: dlm: remove socket shutdown handling
fs: dlm: use listen sock as dlm running indicator
fs: dlm: use list_first_entry_or_null
fs: dlm: remove twice INIT_WORK
fs: dlm: add midcomms init/start functions
fs: dlm: add dst nodeid for msg tracing
fs: dlm: rename seq to h_seq for msg tracing
fs: dlm: rename DLM_IFL_NEED_SCHED to DLM_IFL_CB_PENDING
fs: dlm: ast do WARN_ON_ONCE() on hotpath
fs: dlm: drop lkb ref in bug case
fs: dlm: avoid false-positive checker warning
fs: dlm: use WARN_ON_ONCE() instead of WARN_ON()
...
|
||
|
Linus Torvalds
|
56c003e4db |
Assorted JFS fixes for 6.2
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||
|
Linus Torvalds
|
cda6a60acc |
\n
-----BEGIN PGP SIGNATURE----- iQEzBAABCAAdFiEEq1nRK9aeMoq1VSgcnJ2qBz9kQNkFAmOXWlMACgkQnJ2qBz9k QNltfwf9GIEZASzX/v2LXYInbgvJnuRxeNoNFDZjatz+Nk17fJ9P0Fzcu7OztMTk +4HX3pxXYn/eFTyxVf5c3C2gU4KDV2InrYk+IyA7unZ92ROO5uaxrrknSPouYXoO fd0zwlMQ8bxk7wgjSnG+0Q38dbWr9XgYRqcURjXvRG9e68o49SXTc333lXc+l25X WphjDK6d1gXWiHKdYVYiROF7HjAjaeRk8clXtFhHmyGvhi+wvfP6mqOhzMCRuR7U M1dYR/B2+AJieOmVK1gqsLFc2f/TN3AEYMsRi256vYEuQhY7WRkxQw6afmYsLc8J sjj4mR15SwZewLtIlNbX3phvi1OBWA== =Q4qw -----END PGP SIGNATURE----- Merge tag 'fixes_for_v6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs Pull udf and ext2 fixes from Jan Kara: - a couple of smaller cleanups and fixes for ext2 - fixes of a data corruption issues in udf when handling holes and preallocation extents - fixes and cleanups of several smaller issues in udf - add maintainer entry for isofs * tag 'fixes_for_v6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs: udf: Fix extending file within last block udf: Discard preallocation before extending file with a hole udf: Do not bother looking for prealloc extents if i_lenExtents matches i_size udf: Fix preallocation discarding at indirect extent boundary udf: Increase UDF_MAX_READ_VERSION to 0x0260 fs/ext2: Fix code indentation ext2: unbugger ext2_empty_dir() udf: remove ->writepage ext2: remove ->writepage ext2: Don't flush page immediately for DIRSYNC directories ext2: Fix some kernel-doc warnings maintainers: Add ISOFS entry udf: Avoid double brelse() in udf_rename() fs: udf: Optimize udf_free_in_core_inode and udf_find_fileset function |
||
|
Linus Torvalds
|
07d7a4d696 |
fs.xattr.simple.noaudit.v6.2
-----BEGIN PGP SIGNATURE----- iQEzBAABCgAdFiEEkJ7fqygL5xE8uB3PUwOZruX0MckFAmOTX7AACgkQUwOZruX0 MclZNgf/XAoQbNRkB0H8oi3CS7RWl0iBlmPLKtNo39NuNgW6RCDY4F9rYt6F+dfq P4EuYayZwYw9g/JotEVXtg6Sp7FINKHkMMvlvwa+VsN1fPVM1AbD4mos5imDsj0f tkDVNXHsEOIc2tq0Ov9KUARCN59WpjV5dS0YQmCEsABIJQ1yu9FbCfm6WX3tH4Wd l+z6SSU38ZjQw4fSsc4rEqxf3imynCz9fVJYdfUKsg5WH7TswBQbYEAExMPhd6df qioM1t9u/nBFhOjw1VVgElx7PUijANczyiatU00jNRbMjCLlZcs5yjvv5XTgfRIe u2UJZJB0+6eTqAjA8neC4Z6eKnezwQ== =Cizh -----END PGP SIGNATURE----- Merge tag 'fs.xattr.simple.noaudit.v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/idmapping Pull xattr audit fix from Seth Forshee: "This is a single patch to remove auditing of the capability check in simple_xattr_list(). This check is done to check whether trusted xattrs should be included by listxattr(2). SELinux will normally log a denial when capable() is called and the task's SELinux context doesn't have the corresponding capability permission allowed, which can end up spamming the log. Since a failed check here cannot be used to infer malicious intent, auditing is of no real value, and it makes sense to stop auditing the capability check" * tag 'fs.xattr.simple.noaudit.v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/idmapping: fs: don't audit the capability check in simple_xattr_list() |
||
|
Linus Torvalds
|
6e8948a063 |
fs.idmapped.squashfs.v6.2
-----BEGIN PGP SIGNATURE----- iQEzBAABCgAdFiEEkJ7fqygL5xE8uB3PUwOZruX0MckFAmOTX4IACgkQUwOZruX0 McmDJgf8DlnoL7R88j0OZCLEpuxCOw+j1ZmQhUYz7XmDYPi8zDQCZtcx7scqQIlR oYb6fxP3NOLdsPzt/K2QNuzM8Yv2kRGskZPzojcBzkMwGBlFgyjLjGCOG93hmTcD +nXtod7QzgUvpv7w9bnLXZMw8WvU78UUsUzwhN5jgSmnpmhozZKV8xfIzJYlRUJ+ dNYRZ9O374W+NZOX97nki7oR19cdL5uzpU53ZXMm9DMlLVgcB7yqqS37ABmqS37K I9wJsfcPOsd60f5FUWIm0uxGvAC+p5Z+rG4MJytbDFBfvLlhnJOHRwE+sn5b53wI LuAr9AHF1AHuwuNswatjumJdW9qr4Q== =/IDh -----END PGP SIGNATURE----- Merge tag 'fs.idmapped.squashfs.v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/idmapping Pull squashfs update from Seth Forshee: "This is a simple patch to enable idmapped mounts for squashfs. All functionality squashfs needs to support idmapped mounts is already implemented in generic VFS code, so all that is needed is to set FS_ALLOW_IDMAP in fs_flags" * tag 'fs.idmapped.squashfs.v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/idmapping: squashfs: enable idmapped mounts |
||
|
Linus Torvalds
|
043930b1c8 |
fuse update for 6.2
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Merge tag 'fuse-update-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse
Pull fuse update from Miklos Szeredi:
- Allow some write requests to proceed in parallel
- Fix a performance problem with allow_sys_admin_access
- Add a special kind of invalidation that doesn't immediately purge
submounts
- On revalidation treat the target of rename(RENAME_NOREPLACE) the same
as open(O_EXCL)
- Use type safe helpers for some mnt_userns transformations
* tag 'fuse-update-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse:
fuse: Rearrange fuse_allow_current_process checks
fuse: allow non-extending parallel direct writes on the same file
fuse: remove the unneeded result variable
fuse: port to vfs{g,u}id_t and associated helpers
fuse: Remove user_ns check for FUSE_DEV_IOC_CLONE
fuse: always revalidate rename target dentry
fuse: add "expire only" mode to FUSE_NOTIFY_INVAL_ENTRY
fs/fuse: Replace kmap() with kmap_local_page()
|
||
|
Linus Torvalds
|
6df7cc2268 |
overlayfs update for 6.2
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Merge tag 'ovl-update-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs
Pull overlayfs update from Miklos Szeredi:
- Fix a couple of bugs found by syzbot
- Don't ingore some open flags set by fcntl(F_SETFL)
- Fix failure to create a hard link in certain cases
- Use type safe helpers for some mnt_userns transformations
- Improve performance of mount
- Misc cleanups
* tag 'ovl-update-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs:
ovl: Kconfig: Fix spelling mistake "undelying" -> "underlying"
ovl: use inode instead of dentry where possible
ovl: Add comment on upperredirect reassignment
ovl: use plain list filler in indexdir and workdir cleanup
ovl: do not reconnect upper index records in ovl_indexdir_cleanup()
ovl: fix comment typos
ovl: port to vfs{g,u}id_t and associated helpers
ovl: Use ovl mounter's fsuid and fsgid in ovl_link()
ovl: Use "buf" flexible array for memcpy() destination
ovl: update ->f_iocb_flags when ovl_change_flags() modifies ->f_flags
ovl: fix use inode directly in rcu-walk mode
|
||
|
Linus Torvalds
|
4a6bff1187 |
Changes since the last update:
- Enable large folios for iomap/fscache mode;
- Avoid sysfs warning due to mounting twice with the same fsid and
domain_id in fscache mode;
- Refine fscache interface among erofs, fscache, and cachefiles;
- Use kmap_local_page() only for metabuf;
- Fixes around crafted images found by syzbot;
- Minor cleanups and documentation updates.
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Merge tag 'erofs-for-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs
Pull erofs updates from Gao Xiang:
"In this cycle, large folios are now enabled in the iomap/fscache mode
for uncompressed files first. In order to do that, we've also cleaned
up better interfaces between erofs and fscache, which are acked by
fscache/netfs folks and included in this pull request.
Other than that, there are random fixes around erofs over fscache and
crafted images by syzbot, minor cleanups and documentation updates.
Summary:
- Enable large folios for iomap/fscache mode
- Avoid sysfs warning due to mounting twice with the same fsid and
domain_id in fscache mode
- Refine fscache interface among erofs, fscache, and cachefiles
- Use kmap_local_page() only for metabuf
- Fixes around crafted images found by syzbot
- Minor cleanups and documentation updates"
* tag 'erofs-for-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs:
erofs: validate the extent length for uncompressed pclusters
erofs: fix missing unmap if z_erofs_get_extent_compressedlen() fails
erofs: Fix pcluster memleak when its block address is zero
erofs: use kmap_local_page() only for erofs_bread()
erofs: enable large folios for fscache mode
erofs: support large folios for fscache mode
erofs: switch to prepare_ondemand_read() in fscache mode
fscache,cachefiles: add prepare_ondemand_read() callback
erofs: clean up cached I/O strategies
erofs: update documentation
erofs: check the uniqueness of fsid in shared domain in advance
erofs: enable large folios for iomap mode
|
||
|
Linus Torvalds
|
ad0d9da164 |
fsverity updates for 6.2
The main change this cycle is to stop using the PG_error flag to track verity failures, and instead just track failures at the bio level. This follows a similar fscrypt change that went into 6.1, and it is a step towards freeing up PG_error for other uses. There's also one other small cleanup. -----BEGIN PGP SIGNATURE----- iIoEABYIADIWIQSacvsUNc7UX4ntmEPzXCl4vpKOKwUCY5anyRQcZWJpZ2dlcnNA Z29vZ2xlLmNvbQAKCRDzXCl4vpKOK1IPAP0SMSKJRgehpXHKp5QZxHSpAjkFlcGa 2y8Lc+DlHOrfLQEAmpGAxewowkMzpYVXmlAVVHRgUPWLjoMQQELEUQ8mWgU= =M+pB -----END PGP SIGNATURE----- Merge tag 'fsverity-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/fscrypt Pull fsverity updates from Eric Biggers: "The main change this cycle is to stop using the PG_error flag to track verity failures, and instead just track failures at the bio level. This follows a similar fscrypt change that went into 6.1, and it is a step towards freeing up PG_error for other uses. There's also one other small cleanup" * tag 'fsverity-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/fscrypt: fsverity: simplify fsverity_get_digest() fsverity: stop using PG_error to track error status |
||
|
Linus Torvalds
|
8129bac60f |
fscrypt updates for 6.2
This release adds SM4 encryption support, contributed by Tianjia Zhang. SM4 is a Chinese block cipher that is an alternative to AES. I recommend against using SM4, but (according to Tianjia) some people are being required to use it. Since SM4 has been turning up in many other places (crypto API, wireless, TLS, OpenSSL, ARMv8 CPUs, etc.), it hasn't been very controversial, and some people have to use it, I don't think it would be fair for me to reject this optional feature. Besides the above, there are a couple cleanups. -----BEGIN PGP SIGNATURE----- iIoEABYIADIWIQSacvsUNc7UX4ntmEPzXCl4vpKOKwUCY5auyBQcZWJpZ2dlcnNA Z29vZ2xlLmNvbQAKCRDzXCl4vpKOK1u4AP4lhLxaEJ9upkHZrPAvEdF7QjLhO/ju h1LrvWHcEbvr6AEA/8ptc5RA1BAoSTDcqIWxIAWRztvptP4gUETb1b9C/ws= =An5w -----END PGP SIGNATURE----- Merge tag 'fscrypt-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/fscrypt Pull fscrypt updates from Eric Biggers: "This release adds SM4 encryption support, contributed by Tianjia Zhang. SM4 is a Chinese block cipher that is an alternative to AES. I recommend against using SM4, but (according to Tianjia) some people are being required to use it. Since SM4 has been turning up in many other places (crypto API, wireless, TLS, OpenSSL, ARMv8 CPUs, etc.), it hasn't been very controversial, and some people have to use it, I don't think it would be fair for me to reject this optional feature. Besides the above, there are a couple cleanups" * tag 'fscrypt-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/fscrypt: fscrypt: add additional documentation for SM4 support fscrypt: remove unused Speck definitions fscrypt: Add SM4 XTS/CTS symmetric algorithm support blk-crypto: Add support for SM4-XTS blk crypto mode fscrypt: add comment for fscrypt_valid_enc_modes_v1() fscrypt: pass super_block to fscrypt_put_master_key_activeref() |
||
|
Linus Torvalds
|
deb9acc122 |
A large number of cleanups and bug fixes, with many of the bug fixes
found by Syzbot and fuzzing. (Many of the bug fixes involve less-used ext4 features such as fast_commit, inline_data and bigalloc.) In addition, remove the writepage function for ext4, since the medium-term plan is to remove ->writepage() entirely. (The VM doesn't need or want writepage() for writeback, since it is fine with ->writepages() so long as ->migrate_folio() is implemented.) -----BEGIN PGP SIGNATURE----- iQEzBAABCAAdFiEEK2m5VNv+CHkogTfJ8vlZVpUNgaMFAmOWqrMACgkQ8vlZVpUN gaMvmgf+P2C6vzjn13ZdF+GwFTi4fx4TJ5BZT78LQqvTZqhkfk4k1q2SFfHI7nXT ZWdu1KUQ0SYLo64oaSU9W+2B2pmGi/KgUlrwNhy8DFeGStogPuDVfmGWB63p1UQL ld42mE9q7bjY6nCZSKYXPp2jfSwsHuliHBJ4UfzVNAIwjiUEJ7pGeIrMFdLAEkVm TVNzvlUZaHUnVxhpsP6hs+5WNhHQ2IhWz4rwX01ussNgHTijYac4iaL05wpTvF5e 6NtvfmpOEMAbYrmIkJX4RVss4JNsHNOC0E8fjEHlgXJxBiAI6w8GxTxrS52Y4ELH nHXl/pc0L+I8+yh9B9+s0LBaSuPuTg== =lezv -----END PGP SIGNATURE----- Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 Pull ext4 updates from Ted Ts'o: "A large number of cleanups and bug fixes, with many of the bug fixes found by Syzbot and fuzzing. (Many of the bug fixes involve less-used ext4 features such as fast_commit, inline_data and bigalloc) In addition, remove the writepage function for ext4, since the medium-term plan is to remove ->writepage() entirely. (The VM doesn't need or want writepage() for writeback, since it is fine with ->writepages() so long as ->migrate_folio() is implemented)" * tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (58 commits) ext4: fix reserved cluster accounting in __es_remove_extent() ext4: fix inode leak in ext4_xattr_inode_create() on an error path ext4: allocate extended attribute value in vmalloc area ext4: avoid unaccounted block allocation when expanding inode ext4: initialize quota before expanding inode in setproject ioctl ext4: stop providing .writepage hook mm: export buffer_migrate_folio_norefs() ext4: switch to using write_cache_pages() for data=journal writeout jbd2: switch jbd2_submit_inode_data() to use fs-provided hook for data writeout ext4: switch to using ext4_do_writepages() for ordered data writeout ext4: move percpu_rwsem protection into ext4_writepages() ext4: provide ext4_do_writepages() ext4: add support for writepages calls that cannot map blocks ext4: drop pointless IO submission from ext4_bio_write_page() ext4: remove nr_submitted from ext4_bio_write_page() ext4: move keep_towrite handling to ext4_bio_write_page() ext4: handle redirtying in ext4_bio_write_page() ext4: fix kernel BUG in 'ext4_write_inline_data_end()' ext4: make ext4_mb_initialize_context return void ext4: fix deadlock due to mbcache entry corruption ... |
||
|
Linus Torvalds
|
9b93f5069f |
fs.idmapped.mnt_idmap.v6.2
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Merge tag 'fs.idmapped.mnt_idmap.v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/idmapping
Pull idmapping updates from Christian Brauner:
"Last cycle we've already made the interaction with idmapped mounts
more robust and type safe by introducing the vfs{g,u}id_t type. This
cycle we concluded the conversion and removed the legacy helpers.
Currently we still pass around the plain namespace that was attached
to a mount. This is in general pretty convenient but it makes it easy
to conflate namespaces that are relevant on the filesystem - with
namespaces that are relevent on the mount level. Especially for
filesystem developers without detailed knowledge in this area this can
be a potential source for bugs.
Instead of passing the plain namespace we introduce a dedicated type
struct mnt_idmap and replace the pointer with a pointer to a struct
mnt_idmap. There are no semantic or size changes for the mount struct
caused by this.
We then start converting all places aware of idmapped mounts to rely
on struct mnt_idmap. Once the conversion is done all helpers down to
the really low-level make_vfs{g,u}id() and from_vfs{g,u}id() will take
a struct mnt_idmap argument instead of two namespace arguments. This
way it becomes impossible to conflate the two removing and thus
eliminating the possibility of any bugs. Fwiw, I fixed some issues in
that area a while ago in ntfs3 and ksmbd in the past. Afterwards only
low-level code can ultimately use the associated namespace for any
permission checks. Even most of the vfs can be completely obivious
about this ultimately and filesystems will never interact with it in
any form in the future.
A struct mnt_idmap currently encompasses a simple refcount and pointer
to the relevant namespace the mount is idmapped to. If a mount isn't
idmapped then it will point to a static nop_mnt_idmap and if it
doesn't that it is idmapped. As usual there are no allocations or
anything happening for non-idmapped mounts. Everthing is carefully
written to be a nop for non-idmapped mounts as has always been the
case.
If an idmapped mount is created a struct mnt_idmap is allocated and a
reference taken on the relevant namespace. Each mount that gets
idmapped or inherits the idmap simply bumps the reference count on
struct mnt_idmap. Just a reminder that we only allow a mount to change
it's idmapping a single time and only if it hasn't already been
attached to the filesystems and has no active writers.
The actual changes are fairly straightforward but this will have huge
benefits for maintenance and security in the long run even if it
causes some churn.
Note that this also makes it possible to extend struct mount_idmap in
the future. For example, it would be possible to place the namespace
pointer in an anonymous union together with an idmapping struct. This
would allow us to expose an api to userspace that would let it specify
idmappings directly instead of having to go through the detour of
setting up namespaces at all"
* tag 'fs.idmapped.mnt_idmap.v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/idmapping:
acl: conver higher-level helpers to rely on mnt_idmap
fs: introduce dedicated idmap type for mounts
|
||
|
Linus Torvalds
|
e1212e9b6f |
fs.vfsuid.conversion.v6.2
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Merge tag 'fs.vfsuid.conversion.v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/idmapping
Pull vfsuid updates from Christian Brauner:
"Last cycle we introduced the vfs{g,u}id_t types and associated helpers
to gain type safety when dealing with idmapped mounts. That initial
work already converted a lot of places over but there were still some
left,
This converts all remaining places that still make use of non-type
safe idmapping helpers to rely on the new type safe vfs{g,u}id based
helpers.
Afterwards it removes all the old non-type safe helpers"
* tag 'fs.vfsuid.conversion.v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/idmapping:
fs: remove unused idmapping helpers
ovl: port to vfs{g,u}id_t and associated helpers
fuse: port to vfs{g,u}id_t and associated helpers
ima: use type safe idmapping helpers
apparmor: use type safe idmapping helpers
caps: use type safe idmapping helpers
fs: use type safe idmapping helpers
mnt_idmapping: add missing helpers
|
||
|
Linus Torvalds
|
cf619f8919 |
fs.ovl.setgid.v6.2
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Merge tag 'fs.ovl.setgid.v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/idmapping
Pull setgid inheritance updates from Christian Brauner:
"This contains the work to make setgid inheritance consistent between
modifying a file and when changing ownership or mode as this has been
a repeated source of very subtle bugs. The gist is that we perform the
same permission checks in the write path as we do in the ownership and
mode changing paths after this series where we're currently doing
different things.
We've already made setgid inheritance a lot more consistent and
reliable in the last releases by moving setgid stripping from the
individual filesystems up into the vfs. This aims to make the logic
even more consistent and easier to understand and also to fix
long-standing overlayfs setgid inheritance bugs. Miklos was nice
enough to just let me carry the trivial overlayfs patches from Amir
too.
Below is a more detailed explanation how the current difference in
setgid handling lead to very subtle bugs exemplified via overlayfs
which is a victim of the current rules. I hope this explains why I
think taking the regression risk here is worth it.
A long while ago I found a few setgid inheritance bugs in overlayfs in
the write path in certain conditions. Amir recently picked this back
up in [1] and I jumped on board to fix this more generally.
On the surface all that overlayfs would need to fix setgid inheritance
would be to call file_remove_privs() or file_modified() but actually
that isn't enough because the setgid inheritance api is wildly
inconsistent in that area.
Before this pr setgid stripping in file_remove_privs()'s old
should_remove_suid() helper was inconsistent with other parts of the
vfs. Specifically, it only raises ATTR_KILL_SGID if the inode is
S_ISGID and S_IXGRP but not if the inode isn't in the caller's groups
and the caller isn't privileged over the inode although we require
this already in setattr_prepare() and setattr_copy() and so all
filesystem implement this requirement implicitly because they have to
use setattr_{prepare,copy}() anyway.
But the inconsistency shows up in setgid stripping bugs for overlayfs
in xfstests (e.g., generic/673, generic/683, generic/685, generic/686,
generic/687). For example, we test whether suid and setgid stripping
works correctly when performing various write-like operations as an
unprivileged user (fallocate, reflink, write, etc.):
echo "Test 1 - qa_user, non-exec file $verb"
setup_testfile
chmod a+rws $junk_file
commit_and_check "$qa_user" "$verb" 64k 64k
The test basically creates a file with 6666 permissions. While the
file has the S_ISUID and S_ISGID bits set it does not have the S_IXGRP
set.
On a regular filesystem like xfs what will happen is:
sys_fallocate()
-> vfs_fallocate()
-> xfs_file_fallocate()
-> file_modified()
-> __file_remove_privs()
-> dentry_needs_remove_privs()
-> should_remove_suid()
-> __remove_privs()
newattrs.ia_valid = ATTR_FORCE | kill;
-> notify_change()
-> setattr_copy()
In should_remove_suid() we can see that ATTR_KILL_SUID is raised
unconditionally because the file in the test has S_ISUID set.
But we also see that ATTR_KILL_SGID won't be set because while the
file is S_ISGID it is not S_IXGRP (see above) which is a condition for
ATTR_KILL_SGID being raised.
So by the time we call notify_change() we have attr->ia_valid set to
ATTR_KILL_SUID | ATTR_FORCE.
Now notify_change() sees that ATTR_KILL_SUID is set and does:
ia_valid = attr->ia_valid |= ATTR_MODE
attr->ia_mode = (inode->i_mode & ~S_ISUID);
which means that when we call setattr_copy() later we will definitely
update inode->i_mode. Note that attr->ia_mode still contains S_ISGID.
Now we call into the filesystem's ->setattr() inode operation which
will end up calling setattr_copy(). Since ATTR_MODE is set we will
hit:
if (ia_valid & ATTR_MODE) {
umode_t mode = attr->ia_mode;
vfsgid_t vfsgid = i_gid_into_vfsgid(mnt_userns, inode);
if (!vfsgid_in_group_p(vfsgid) &&
!capable_wrt_inode_uidgid(mnt_userns, inode, CAP_FSETID))
mode &= ~S_ISGID;
inode->i_mode = mode;
}
and since the caller in the test is neither capable nor in the group
of the inode the S_ISGID bit is stripped.
But assume the file isn't suid then ATTR_KILL_SUID won't be raised
which has the consequence that neither the setgid nor the suid bits
are stripped even though it should be stripped because the inode isn't
in the caller's groups and the caller isn't privileged over the inode.
If overlayfs is in the mix things become a bit more complicated and
the bug shows up more clearly.
When e.g., ovl_setattr() is hit from ovl_fallocate()'s call to
file_remove_privs() then ATTR_KILL_SUID and ATTR_KILL_SGID might be
raised but because the check in notify_change() is questioning the
ATTR_KILL_SGID flag again by requiring S_IXGRP for it to be stripped
the S_ISGID bit isn't removed even though it should be stripped:
sys_fallocate()
-> vfs_fallocate()
-> ovl_fallocate()
-> file_remove_privs()
-> dentry_needs_remove_privs()
-> should_remove_suid()
-> __remove_privs()
newattrs.ia_valid = ATTR_FORCE | kill;
-> notify_change()
-> ovl_setattr()
/* TAKE ON MOUNTER'S CREDS */
-> ovl_do_notify_change()
-> notify_change()
/* GIVE UP MOUNTER'S CREDS */
/* TAKE ON MOUNTER'S CREDS */
-> vfs_fallocate()
-> xfs_file_fallocate()
-> file_modified()
-> __file_remove_privs()
-> dentry_needs_remove_privs()
-> should_remove_suid()
-> __remove_privs()
newattrs.ia_valid = attr_force | kill;
-> notify_change()
The fix for all of this is to make file_remove_privs()'s
should_remove_suid() helper perform the same checks as we already
require in setattr_prepare() and setattr_copy() and have
notify_change() not pointlessly requiring S_IXGRP again. It doesn't
make any sense in the first place because the caller must calculate
the flags via should_remove_suid() anyway which would raise
ATTR_KILL_SGID
Note that some xfstests will now fail as these patches will cause the
setgid bit to be lost in certain conditions for unprivileged users
modifying a setgid file when they would've been kept otherwise. I
think this risk is worth taking and I explained and mentioned this
multiple times on the list [2].
Enforcing the rules consistently across write operations and
chmod/chown will lead to losing the setgid bit in cases were it
might've been retained before.
While I've mentioned this a few times but it's worth repeating just to
make sure that this is understood. For the sake of maintainability,
consistency, and security this is a risk worth taking.
If we really see regressions for workloads the fix is to have special
setgid handling in the write path again with different semantics from
chmod/chown and possibly additional duct tape for overlayfs. I'll
update the relevant xfstests with if you should decide to merge this
second setgid cleanup.
Before that people should be aware that there might be failures for
fstests where unprivileged users modify a setgid file"
Link: https://lore.kernel.org/linux-fsdevel/20221003123040.900827-1-amir73il@gmail.com [1]
Link: https://lore.kernel.org/linux-fsdevel/20221122142010.zchf2jz2oymx55qi@wittgenstein [2]
* tag 'fs.ovl.setgid.v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/idmapping:
fs: use consistent setgid checks in is_sxid()
ovl: remove privs in ovl_fallocate()
ovl: remove privs in ovl_copyfile()
attr: use consistent sgid stripping checks
attr: add setattr_should_drop_sgid()
fs: move should_remove_suid()
attr: add in_group_or_capable()
|
||
|
Linus Torvalds
|
6a518afcc2 |
fs.acl.rework.v6.2
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Merge tag 'fs.acl.rework.v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/idmapping
Pull VFS acl updates from Christian Brauner:
"This contains the work that builds a dedicated vfs posix acl api.
The origins of this work trace back to v5.19 but it took quite a while
to understand the various filesystem specific implementations in
sufficient detail and also come up with an acceptable solution.
As we discussed and seen multiple times the current state of how posix
acls are handled isn't nice and comes with a lot of problems: The
current way of handling posix acls via the generic xattr api is error
prone, hard to maintain, and type unsafe for the vfs until we call
into the filesystem's dedicated get and set inode operations.
It is already the case that posix acls are special-cased to death all
the way through the vfs. There are an uncounted number of hacks that
operate on the uapi posix acl struct instead of the dedicated vfs
struct posix_acl. And the vfs must be involved in order to interpret
and fixup posix acls before storing them to the backing store, caching
them, reporting them to userspace, or for permission checking.
Currently a range of hacks and duct tape exist to make this work. As
with most things this is really no ones fault it's just something that
happened over time. But the code is hard to understand and difficult
to maintain and one is constantly at risk of introducing bugs and
regressions when having to touch it.
Instead of continuing to hack posix acls through the xattr handlers
this series builds a dedicated posix acl api solely around the get and
set inode operations.
Going forward, the vfs_get_acl(), vfs_remove_acl(), and vfs_set_acl()
helpers must be used in order to interact with posix acls. They
operate directly on the vfs internal struct posix_acl instead of
abusing the uapi posix acl struct as we currently do. In the end this
removes all of the hackiness, makes the codepaths easier to maintain,
and gets us type safety.
This series passes the LTP and xfstests suites without any
regressions. For xfstests the following combinations were tested:
- xfs
- ext4
- btrfs
- overlayfs
- overlayfs on top of idmapped mounts
- orangefs
- (limited) cifs
There's more simplifications for posix acls that we can make in the
future if the basic api has made it.
A few implementation details:
- The series makes sure to retain exactly the same security and
integrity module permission checks. Especially for the integrity
modules this api is a win because right now they convert the uapi
posix acl struct passed to them via a void pointer into the vfs
struct posix_acl format to perform permission checking on the mode.
There's a new dedicated security hook for setting posix acls which
passes the vfs struct posix_acl not a void pointer. Basing checking
on the posix acl stored in the uapi format is really unreliable.
The vfs currently hacks around directly in the uapi struct storing
values that frankly the security and integrity modules can't
correctly interpret as evidenced by bugs we reported and fixed in
this area. It's not necessarily even their fault it's just that the
format we provide to them is sub optimal.
- Some filesystems like 9p and cifs need access to the dentry in
order to get and set posix acls which is why they either only
partially or not even at all implement get and set inode
operations. For example, cifs allows setxattr() and getxattr()
operations but doesn't allow permission checking based on posix
acls because it can't implement a get acl inode operation.
Thus, this patch series updates the set acl inode operation to take
a dentry instead of an inode argument. However, for the get acl
inode operation we can't do this as the old get acl method is
called in e.g., generic_permission() and inode_permission(). These
helpers in turn are called in various filesystem's permission inode
operation. So passing a dentry argument to the old get acl inode
operation would amount to passing a dentry to the permission inode
operation which we shouldn't and probably can't do.
So instead of extending the existing inode operation Christoph
suggested to add a new one. He also requested to ensure that the
get and set acl inode operation taking a dentry are consistently
named. So for this version the old get acl operation is renamed to
->get_inode_acl() and a new ->get_acl() inode operation taking a
dentry is added. With this we can give both 9p and cifs get and set
acl inode operations and in turn remove their complex custom posix
xattr handlers.
In the future I hope to get rid of the inode method duplication but
it isn't like we have never had this situation. Readdir is just one
example. And frankly, the overall gain in type safety and the more
pleasant api wise are simply too big of a benefit to not accept
this duplication for a while.
- We've done a full audit of every codepaths using variant of the
current generic xattr api to get and set posix acls and
surprisingly it isn't that many places. There's of course always a
chance that we might have missed some and if so I'm sure we'll find
them soon enough.
The crucial codepaths to be converted are obviously stacking
filesystems such as ecryptfs and overlayfs.
For a list of all callers currently using generic xattr api helpers
see [2] including comments whether they support posix acls or not.
- The old vfs generic posix acl infrastructure doesn't obey the
create and replace semantics promised on the setxattr(2) manpage.
This patch series doesn't address this. It really is something we
should revisit later though.
The patches are roughly organized as follows:
(1) Change existing set acl inode operation to take a dentry
argument (Intended to be a non-functional change)
(2) Rename existing get acl method (Intended to be a non-functional
change)
(3) Implement get and set acl inode operations for filesystems that
couldn't implement one before because of the missing dentry.
That's mostly 9p and cifs (Intended to be a non-functional
change)
(4) Build posix acl api, i.e., add vfs_get_acl(), vfs_remove_acl(),
and vfs_set_acl() including security and integrity hooks
(Intended to be a non-functional change)
(5) Implement get and set acl inode operations for stacking
filesystems (Intended to be a non-functional change)
(6) Switch posix acl handling in stacking filesystems to new posix
acl api now that all filesystems it can stack upon support it.
(7) Switch vfs to new posix acl api (semantical change)
(8) Remove all now unused helpers
(9) Additional regression fixes reported after we merged this into
linux-next
Thanks to Seth for a lot of good discussion around this and
encouragement and input from Christoph"
* tag 'fs.acl.rework.v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/idmapping: (36 commits)
posix_acl: Fix the type of sentinel in get_acl
orangefs: fix mode handling
ovl: call posix_acl_release() after error checking
evm: remove dead code in evm_inode_set_acl()
cifs: check whether acl is valid early
acl: make vfs_posix_acl_to_xattr() static
acl: remove a slew of now unused helpers
9p: use stub posix acl handlers
cifs: use stub posix acl handlers
ovl: use stub posix acl handlers
ecryptfs: use stub posix acl handlers
evm: remove evm_xattr_acl_change()
xattr: use posix acl api
ovl: use posix acl api
ovl: implement set acl method
ovl: implement get acl method
ecryptfs: implement set acl method
ecryptfs: implement get acl method
ksmbd: use vfs_remove_acl()
acl: add vfs_remove_acl()
...
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|
Linus Torvalds
|
bd90741318 |
misc pile
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQQqUNBr3gm4hGXdBJlZ7Krx/gZQ6wUCY5ZzrwAKCRBZ7Krx/gZQ 6+WrAP9QltAQopxexxpRxTdA3yq7Fy9ZakkS7b1udhRHgRA8GgEA7ZcrqX8IsyDW hLW4cQPVUkJD7MCR8P7lw5sLaararAg= =TchO -----END PGP SIGNATURE----- Merge tag 'pull-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull misc vfs updates from Al Viro: "misc pile" * tag 'pull-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: fs: sysv: Fix sysv_nblocks() returns wrong value get rid of INT_LIMIT, use type_max() instead btrfs: replace INT_LIMIT(loff_t) with OFFSET_MAX fs: simplify vfs_get_super fs: drop useless condition from inode_needs_update_time |
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Linus Torvalds
|
13c574fec8 |
fix of weird corner case in copy_mnt_ns()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQQqUNBr3gm4hGXdBJlZ7Krx/gZQ6wUCY5ZzcgAKCRBZ7Krx/gZQ 67oZAQCJ3ucfmif/P+GPhgNqUV0sb/zL036mAvBw9Cz3q36JcgD9E/NuS0DYWS6+ fOsNMFFDbXUPAz7Ny3BFV8W3wFrClw4= =t2Lt -----END PGP SIGNATURE----- Merge tag 'pull-namespace' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull namespace fix from Al Viro: "Fix weird corner case in copy_mnt_ns()" * tag 'pull-namespace' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: copy_mnt_ns(): handle a corner case (overmounted mntns bindings) saner |
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Linus Torvalds
|
75f4d9af8b |
iov_iter work; most of that is about getting rid of
direction misannotations and (hopefully) preventing
more of the same for the future.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Merge tag 'pull-iov_iter' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull iov_iter updates from Al Viro:
"iov_iter work; most of that is about getting rid of direction
misannotations and (hopefully) preventing more of the same for the
future"
* tag 'pull-iov_iter' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
use less confusing names for iov_iter direction initializers
iov_iter: saner checks for attempt to copy to/from iterator
[xen] fix "direction" argument of iov_iter_kvec()
[vhost] fix 'direction' argument of iov_iter_{init,bvec}()
[target] fix iov_iter_bvec() "direction" argument
[s390] memcpy_real(): WRITE is "data source", not destination...
[s390] zcore: WRITE is "data source", not destination...
[infiniband] READ is "data destination", not source...
[fsi] WRITE is "data source", not destination...
[s390] copy_oldmem_kernel() - WRITE is "data source", not destination
csum_and_copy_to_iter(): handle ITER_DISCARD
get rid of unlikely() on page_copy_sane() calls
|
||
|
Linus Torvalds
|
268369b171 |
alpha cleanups and fixes; one thing *not* included is lazy FPU
switching stuff - this pile is just the straightforward stuff. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> -----BEGIN PGP SIGNATURE----- iHQEABYIAB0WIQQqUNBr3gm4hGXdBJlZ7Krx/gZQ6wUCY5Z1HgAKCRBZ7Krx/gZQ 6/uMAPYmK7k68XYuFKsMsxMisGY2mL2NDKBQmf3upk+e1Be6AQCOnG8tA9xGkZ4v e/b3oW04Hwrwp3cSzH7hVHiQiPCQAw== =v5DV -----END PGP SIGNATURE----- Merge tag 'pull-alpha' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull alpha updates from Al Viro: "Alpha architecture cleanups and fixes. One thing *not* included is lazy FPU switching stuff - this pile is just the straightforward stuff" * tag 'pull-alpha' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: alpha: ret_from_fork can go straight to ret_to_user alpha: syscall exit cleanup alpha: fix handling of a3 on straced syscalls alpha: fix syscall entry in !AUDUT_SYSCALL case alpha: _TIF_ALLWORK_MASK is unused alpha: fix TIF_NOTIFY_SIGNAL handling |
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|
Linus Torvalds
|
405b2fc663 |
Unification of regset and non-regset sides of ELF coredump
handling. Collecting per-thread register values is the only thing that needs to be ifdefed there... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQQqUNBr3gm4hGXdBJlZ7Krx/gZQ6wUCY5ZyNgAKCRBZ7Krx/gZQ 63MZAQDZDE9Pk9EQ/3qOPNb2cuz8KSB3THUyotvustUUGPTUVAD/Ut1xD03jpWCY oQ6tM8dNyh3+Vsx6/XKNd1+pj6IgNQE= =XYkZ -----END PGP SIGNATURE----- Merge tag 'pull-elfcore' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull elf coredumping updates from Al Viro: "Unification of regset and non-regset sides of ELF coredump handling. Collecting per-thread register values is the only thing that needs to be ifdefed there..." * tag 'pull-elfcore' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: [elf] get rid of get_note_info_size() [elf] unify regset and non-regset cases [elf][non-regset] use elf_core_copy_task_regs() for dumper as well [elf][non-regset] uninline elf_core_copy_task_fpregs() (and lose pt_regs argument) elf_core_copy_task_regs(): task_pt_regs is defined everywhere [elf][regset] simplify thread list handling in fill_note_info() [elf][regset] clean fill_note_info() a bit kill extern of vsyscall32_sysctl kill coredump_params->regs kill signal_pt_regs() |
||
|
Linus Torvalds
|
8702f2c611 |
Non-MM patches for 6.2-rc1.
- A ptrace API cleanup series from Sergey Shtylyov - Fixes and cleanups for kexec from ye xingchen - nilfs2 updates from Ryusuke Konishi - squashfs feature work from Xiaoming Ni: permit configuration of the filesystem's compression concurrency from the mount command line. - A series from Akinobu Mita which addresses bound checking errors when writing to debugfs files. - A series from Yang Yingliang to address rapido memory leaks - A series from Zheng Yejian to address possible overflow errors in encode_comp_t(). - And a whole shower of singleton patches all over the place. -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQTTMBEPP41GrTpTJgfdBJ7gKXxAjgUCY5efRgAKCRDdBJ7gKXxA jgvdAP0al6oFDtaSsshIdNhrzcMwfjt6PfVxxHdLmNhF1hX2dwD/SVluS1bPSP7y 0sZp7Ustu3YTb8aFkMl96Y9m9mY1Nwg= =ga5B -----END PGP SIGNATURE----- Merge tag 'mm-nonmm-stable-2022-12-12' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull non-MM updates from Andrew Morton: - A ptrace API cleanup series from Sergey Shtylyov - Fixes and cleanups for kexec from ye xingchen - nilfs2 updates from Ryusuke Konishi - squashfs feature work from Xiaoming Ni: permit configuration of the filesystem's compression concurrency from the mount command line - A series from Akinobu Mita which addresses bound checking errors when writing to debugfs files - A series from Yang Yingliang to address rapidio memory leaks - A series from Zheng Yejian to address possible overflow errors in encode_comp_t() - And a whole shower of singleton patches all over the place * tag 'mm-nonmm-stable-2022-12-12' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (79 commits) ipc: fix memory leak in init_mqueue_fs() hfsplus: fix bug causing custom uid and gid being unable to be assigned with mount rapidio: devices: fix missing put_device in mport_cdev_open kcov: fix spelling typos in comments hfs: Fix OOB Write in hfs_asc2mac hfs: fix OOB Read in __hfs_brec_find relay: fix type mismatch when allocating memory in relay_create_buf() ocfs2: always read both high and low parts of dinode link count io-mapping: move some code within the include guarded section kernel: kcsan: kcsan_test: build without structleak plugin mailmap: update email for Iskren Chernev eventfd: change int to __u64 in eventfd_signal() ifndef CONFIG_EVENTFD rapidio: fix possible UAF when kfifo_alloc() fails relay: use strscpy() is more robust and safer cpumask: limit visibility of FORCE_NR_CPUS acct: fix potential integer overflow in encode_comp_t() acct: fix accuracy loss for input value of encode_comp_t() linux/init.h: include <linux/build_bug.h> and <linux/stringify.h> rapidio: rio: fix possible name leak in rio_register_mport() rapidio: fix possible name leaks when rio_add_device() fails ... |
||
|
Linus Torvalds
|
a7cacfb068 |
This was a not-too-busy cycle for documentation; highlights include:
- The beginnings of a set of translations into Spanish, headed up by Carlos
Bilbao.
- More Chinese translations.
- A change to the Sphinx "alabaster" theme by default for HTML generation.
Unlike the previous default (Read the Docs), alabaster is shipped with
Sphinx by default, reducing the number of other dependencies that need to
be installed. It also (IMO) produces a cleaner and more readable result.
- The ability to render the documentation into the texinfo format
(something Sphinx could always do, we just never wired it up until now).
Plus the usual collection of typo fixes, build-warning fixes, and minor
updates.
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Merge tag 'docs-6.2' of git://git.lwn.net/linux
Pull documentation updates from Jonathan Corbet:
"This was a not-too-busy cycle for documentation; highlights include:
- The beginnings of a set of translations into Spanish, headed up by
Carlos Bilbao
- More Chinese translations
- A change to the Sphinx "alabaster" theme by default for HTML
generation.
Unlike the previous default (Read the Docs), alabaster is shipped
with Sphinx by default, reducing the number of other dependencies
that need to be installed. It also (IMO) produces a cleaner and
more readable result.
- The ability to render the documentation into the texinfo format
(something Sphinx could always do, we just never wired it up until
now)
Plus the usual collection of typo fixes, build-warning fixes, and
minor updates"
* tag 'docs-6.2' of git://git.lwn.net/linux: (67 commits)
Documentation/features: Use loongarch instead of loong
Documentation/features-refresh.sh: Only sed the beginning "arch" of ARCH_DIR
docs/zh_CN: Fix '.. only::' directive's expression
docs/sp_SP: Add memory-barriers.txt Spanish translation
docs/zh_CN/LoongArch: Update links of LoongArch ISA Vol1 and ELF psABI
docs/LoongArch: Update links of LoongArch ISA Vol1 and ELF psABI
Documentation/features: Update feature lists for 6.1
Documentation: Fixed a typo in bootconfig.rst
docs/sp_SP: Add process coding-style translation
docs/sp_SP: Add kernel-docs.rst Spanish translation
docs: Create translations/sp_SP/process/, move submitting-patches.rst
docs: Add book to process/kernel-docs.rst
docs: Retire old resources from kernel-docs.rst
docs: Update maintainer of kernel-docs.rst
Documentation: riscv: Document the sv57 VM layout
Documentation: USB: correct possessive "its" usage
math64: fix kernel-doc return value warnings
math64: add kernel-doc for DIV64_U64_ROUND_UP
math64: favor kernel-doc from header files
doc: add texinfodocs and infodocs targets
...
|
||
|
Linus Torvalds
|
96f4263568 |
Rust changes for v6.2
The first set of changes after the merge, the major ones being: - String and formatting: new types `CString`, `CStr`, `BStr` and `Formatter`; new macros `c_str!`, `b_str!` and `fmt!`. - Errors: the rest of the error codes from `errno-base.h`, as well as some `From` trait implementations for the `Error` type. - Printing: the rest of the `pr_*!` levels and the continuation one `pr_cont!`, as well as a new sample. - `alloc` crate: new constructors `try_with_capacity()` and `try_with_capacity_in()` for `RawVec` and `Vec`. - Procedural macros: new macros `#[vtable]` and `concat_idents!`, as well as better ergonomics for `module!` users. - Asserting: new macros `static_assert!`, `build_error!` and `build_assert!`, as well as a new crate `build_error` to support them. - Vocabulary types: new types `Opaque` and `Either`. - Debugging: new macro `dbg!`. -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEPjU5OPd5QIZ9jqqOGXyLc2htIW0FAmOVJTQACgkQGXyLc2ht IW3cLA//dn0/rN2sCJBsX8/mNQqRXQvM45QUP5ESd5w01fRXEpvHZ+MbfdcFZN8K oQEgZwTwTKvKY6V+xCPmEiUvk5jniCzdEjTFtDhVhA+qimxY/FMS3zozuJMQIlz2 zTiZ4aEM1zFAwoDHnnOmaCO+C0zw5d9UFIKO4nIvOSy3gD/eLgiFz3cyTh8Q2+BT lPyqeKg9+xKIl8tWa5zGYHgZASGguV0EpXFn4Ck4eBOH6O9ovWgakdzZp0BMJ9Ca UNIFpFjLMUkCwzZkPqIyI9IZEOzUYWTTfWU9S5JJ6IzC3aT8NPp3WeSYW9TgVnvO z5n6rsYOgvKeWCvGIgq82fgVbGMNaaP1MFxNLsdbWWj+9lfebpk62aQXSuWsvASq /W39/xEhOOLikyb3ObVHLW1r1lu9guSeP8eaMQ5ci/99kypHHBOXmB/nr9pxPkrr kovxuZedDbgEYunbVmwWGmvLg8dcjadfeXf6Dkc6bwDvyhiuX9W21z9ppT9nV5NW chYRAPROCHuBRu+txft9gIjyE1/V7G8CyeWiG36VWN8Tayc5iJEWOopk4GJcEpJi MS5tAJru7fBZcXjFausN3mdXyRwMLdilTZ2Qkp6MqzXi5zwVuKH1wsJ7CLkPBWQC tAPJts6krOonI2cd2JM8ds+Wj5Q1cDGQuF6Rj29/27aUBKH1w2Y= =iIcK -----END PGP SIGNATURE----- Merge tag 'rust-6.2' of https://github.com/Rust-for-Linux/linux Pull rust updates from Miguel Ojeda: "The first set of changes after the merge, the major ones being: - String and formatting: new types 'CString', 'CStr', 'BStr' and 'Formatter'; new macros 'c_str!', 'b_str!' and 'fmt!'. - Errors: the rest of the error codes from 'errno-base.h', as well as some 'From' trait implementations for the 'Error' type. - Printing: the rest of the 'pr_*!' levels and the continuation one 'pr_cont!', as well as a new sample. - 'alloc' crate: new constructors 'try_with_capacity()' and 'try_with_capacity_in()' for 'RawVec' and 'Vec'. - Procedural macros: new macros '#[vtable]' and 'concat_idents!', as well as better ergonomics for 'module!' users. - Asserting: new macros 'static_assert!', 'build_error!' and 'build_assert!', as well as a new crate 'build_error' to support them. - Vocabulary types: new types 'Opaque' and 'Either'. - Debugging: new macro 'dbg!'" * tag 'rust-6.2' of https://github.com/Rust-for-Linux/linux: (28 commits) rust: types: add `Opaque` type rust: types: add `Either` type rust: build_assert: add `build_{error,assert}!` macros rust: add `build_error` crate rust: static_assert: add `static_assert!` macro rust: std_vendor: add `dbg!` macro based on `std`'s one rust: str: add `fmt!` macro rust: str: add `CString` type rust: str: add `Formatter` type rust: str: add `c_str!` macro rust: str: add `CStr` unit tests rust: str: implement several traits for `CStr` rust: str: add `CStr` type rust: str: add `b_str!` macro rust: str: add `BStr` type rust: alloc: add `Vec::try_with_capacity{,_in}()` constructors rust: alloc: add `RawVec::try_with_capacity_in()` constructor rust: prelude: add `error::code::*` constant items rust: error: add `From` implementations for `Error` rust: error: add codes from `errno-base.h` ... |
||
|
Linus Torvalds
|
eb45115381 |
tracing tools for 6.2
- New tool "rv" for starting and stopping runtime verification:
example: ./rv mon wip -r printk -v
Enables the wake-in-preempt monitor and the printk reactor in verbose mode
- Fix exit status of rtla usage() calls
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Merge tag 'trace-tools-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull tracing tools updates from Steven Rostedt:
- New tool "rv" for starting and stopping runtime verification.
Example:
./rv mon wip -r printk -v
Enables the wake-in-preempt monitor and the printk reactor in verbose
mode
- Fix exit status of rtla usage() calls
* tag 'trace-tools-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
Documentation/rv: Add verification/rv man pages
tools/rv: Add in-kernel monitor interface
rv: Add rv tool
rtla: Fix exit status when returning from calls to usage()
|
||
|
Linus Torvalds
|
535ea85de3 |
ktest changes for 6.2
- Fix minconfig test to unset the config and not relying on
olddefconfig to do it, as some configs are set to default y
- Fix reading grub2 menus for handling submenus
- Add new ${shell <cmd>} to execute shell commands that will be useful
for setting variables like: HOSTNAME := ${shell hostname}
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Merge tag 'ktest-v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest
Pull ktest updates from Steven Rostedt:
- Fix minconfig test to unset the config and not relying on
olddefconfig to do it, as some configs are set to default y
- Fix reading grub2 menus for handling submenus
- Add new ${shell <cmd>} to execute shell commands that will be useful
for setting variables like: HOSTNAME := ${shell hostname}
* tag 'ktest-v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest:
ktest.pl: Add shell commands to variables
kest.pl: Fix grub2 menu handling for rebooting
ktest.pl minconfig: Unset configs instead of just removing them
|
||
|
Linus Torvalds
|
e2ed78d5d9 |
linux-kselftest-kunit-next-6.2-rc1
This KUnit next update for Linux 6.2-rc1 consists of several enhancements,
fixes, clean-ups, documentation updates, improvements to logging and KTAP
compliance of KUnit test output:
- log numbers in decimal and hex
- parse KTAP compliant test output
- allow conditionally exposing static symbols to tests
when KUNIT is enabled
- make static symbols visible during kunit testing
- clean-ups to remove unused structure definition
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Merge tag 'linux-kselftest-kunit-next-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull KUnit updates from Shuah Khan:
"Several enhancements, fixes, clean-ups, documentation updates,
improvements to logging and KTAP compliance of KUnit test output:
- log numbers in decimal and hex
- parse KTAP compliant test output
- allow conditionally exposing static symbols to tests when KUNIT is
enabled
- make static symbols visible during kunit testing
- clean-ups to remove unused structure definition"
* tag 'linux-kselftest-kunit-next-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: (29 commits)
Documentation: dev-tools: Clarify requirements for result description
apparmor: test: make static symbols visible during kunit testing
kunit: add macro to allow conditionally exposing static symbols to tests
kunit: tool: make parser preserve whitespace when printing test log
Documentation: kunit: Fix "How Do I Use This" / "Next Steps" sections
kunit: tool: don't include KTAP headers and the like in the test log
kunit: improve KTAP compliance of KUnit test output
kunit: tool: parse KTAP compliant test output
mm: slub: test: Use the kunit_get_current_test() function
kunit: Use the static key when retrieving the current test
kunit: Provide a static key to check if KUnit is actively running tests
kunit: tool: make --json do nothing if --raw_ouput is set
kunit: tool: tweak error message when no KTAP found
kunit: remove KUNIT_INIT_MEM_ASSERTION macro
Documentation: kunit: Remove redundant 'tips.rst' page
Documentation: KUnit: reword description of assertions
Documentation: KUnit: make usage.rst a superset of tips.rst, remove duplication
kunit: eliminate KUNIT_INIT_*_ASSERT_STRUCT macros
kunit: tool: remove redundant file.close() call in unit test
kunit: tool: unit tests all check parser errors, standardize formatting a bit
...
|
||
|
Linus Torvalds
|
23a68d14de |
linux-kselftest-next-6.2-rc1
This Kselftest update for Linux 6.2-rc1 consists of several fixes
and enhancements to existing tests and a few new tests:
- adds new amd-pstate and fixes and enhances existing ones
- adds new watchdog tests and enhances existing ones to improve coverage
- fixes to ftrace, splice_read, rtc, and efivars tests
- fixes to handle egrep obsolescence in the latest grep release
- miscellaneous spelling and SPDX fixes
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Merge tag 'linux-kselftest-next-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull Kselftest updates from Shuah Khan:
"Several fixes and enhancements to existing tests and a few new tests:
- add new amd-pstate tests and fix and enhance existing ones
- add new watchdog tests and enhance existing ones to improve
coverage
- fixes to ftrace, splice_read, rtc, and efivars tests
- fixes to handle egrep obsolescence in the latest grep release
- miscellaneous spelling and SPDX fixes"
* tag 'linux-kselftest-next-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: (24 commits)
selftests/ftrace: Use long for synthetic event probe test
selftests/tpm2: Split async tests call to separate shell script runner
selftests: splice_read: Fix sysfs read cases
selftests: ftrace: Use "grep -E" instead of "egrep"
selftests: gpio: Use "grep -E" instead of "egrep"
selftests: kselftest_deps: Use "grep -E" instead of "egrep"
selftests/efivarfs: Add checking of the test return value
cpufreq: amd-pstate: fix spdxcheck warnings for amd-pstate-ut.c
selftests: rtc: skip when RTC is not present
selftests/ftrace: event_triggers: wait longer for test_event_enable
selftests/vDSO: Add riscv getcpu & gettimeofday test
Documentation: amd-pstate: Add tbench and gitsource test introduction
selftests: amd-pstate: Trigger gitsource benchmark and test cpus
selftests: amd-pstate: Trigger tbench benchmark and test cpus
selftests: amd-pstate: Split basic.sh into run.sh and basic.sh.
selftests: amd-pstate: Rename amd-pstate-ut.sh to basic.sh.
selftests/ftrace: Convert tracer tests to use 'requires' to specify program dependency
selftests/ftrace: Add check for ping command for trigger tests
selftests/watchdog: Fix spelling mistake "Temeprature" -> "Temperature"
selftests/watchdog: add test for WDIOC_GETTEMP
...
|
||
|
Linus Torvalds
|
268325bda5 |
Random number generator updates for Linux 6.2-rc1.
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Merge tag 'random-6.2-rc1-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/crng/random
Pull random number generator updates from Jason Donenfeld:
- Replace prandom_u32_max() and various open-coded variants of it,
there is now a new family of functions that uses fast rejection
sampling to choose properly uniformly random numbers within an
interval:
get_random_u32_below(ceil) - [0, ceil)
get_random_u32_above(floor) - (floor, U32_MAX]
get_random_u32_inclusive(floor, ceil) - [floor, ceil]
Coccinelle was used to convert all current users of
prandom_u32_max(), as well as many open-coded patterns, resulting in
improvements throughout the tree.
I'll have a "late" 6.1-rc1 pull for you that removes the now unused
prandom_u32_max() function, just in case any other trees add a new
use case of it that needs to converted. According to linux-next,
there may be two trivial cases of prandom_u32_max() reintroductions
that are fixable with a 's/.../.../'. So I'll have for you a final
conversion patch doing that alongside the removal patch during the
second week.
This is a treewide change that touches many files throughout.
- More consistent use of get_random_canary().
- Updates to comments, documentation, tests, headers, and
simplification in configuration.
- The arch_get_random*_early() abstraction was only used by arm64 and
wasn't entirely useful, so this has been replaced by code that works
in all relevant contexts.
- The kernel will use and manage random seeds in non-volatile EFI
variables, refreshing a variable with a fresh seed when the RNG is
initialized. The RNG GUID namespace is then hidden from efivarfs to
prevent accidental leakage.
These changes are split into random.c infrastructure code used in the
EFI subsystem, in this pull request, and related support inside of
EFISTUB, in Ard's EFI tree. These are co-dependent for full
functionality, but the order of merging doesn't matter.
- Part of the infrastructure added for the EFI support is also used for
an improvement to the way vsprintf initializes its siphash key,
replacing an sleep loop wart.
- The hardware RNG framework now always calls its correct random.c
input function, add_hwgenerator_randomness(), rather than sometimes
going through helpers better suited for other cases.
- The add_latent_entropy() function has long been called from the fork
handler, but is a no-op when the latent entropy gcc plugin isn't
used, which is fine for the purposes of latent entropy.
But it was missing out on the cycle counter that was also being mixed
in beside the latent entropy variable. So now, if the latent entropy
gcc plugin isn't enabled, add_latent_entropy() will expand to a call
to add_device_randomness(NULL, 0), which adds a cycle counter,
without the absent latent entropy variable.
- The RNG is now reseeded from a delayed worker, rather than on demand
when used. Always running from a worker allows it to make use of the
CPU RNG on platforms like S390x, whose instructions are too slow to
do so from interrupts. It also has the effect of adding in new inputs
more frequently with more regularity, amounting to a long term
transcript of random values. Plus, it helps a bit with the upcoming
vDSO implementation (which isn't yet ready for 6.2).
- The jitter entropy algorithm now tries to execute on many different
CPUs, round-robining, in hopes of hitting even more memory latencies
and other unpredictable effects. It also will mix in a cycle counter
when the entropy timer fires, in addition to being mixed in from the
main loop, to account more explicitly for fluctuations in that timer
firing. And the state it touches is now kept within the same cache
line, so that it's assured that the different execution contexts will
cause latencies.
* tag 'random-6.2-rc1-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/crng/random: (23 commits)
random: include <linux/once.h> in the right header
random: align entropy_timer_state to cache line
random: mix in cycle counter when jitter timer fires
random: spread out jitter callback to different CPUs
random: remove extraneous period and add a missing one in comments
efi: random: refresh non-volatile random seed when RNG is initialized
vsprintf: initialize siphash key using notifier
random: add back async readiness notifier
random: reseed in delayed work rather than on-demand
random: always mix cycle counter in add_latent_entropy()
hw_random: use add_hwgenerator_randomness() for early entropy
random: modernize documentation comment on get_random_bytes()
random: adjust comment to account for removed function
random: remove early archrandom abstraction
random: use random.trust_{bootloader,cpu} command line option only
stackprotector: actually use get_random_canary()
stackprotector: move get_random_canary() into stackprotector.h
treewide: use get_random_u32_inclusive() when possible
treewide: use get_random_u32_{above,below}() instead of manual loop
treewide: use get_random_u32_below() instead of deprecated function
...
|
||
|
Linus Torvalds
|
ca1443c7e7 |
Merge branch 'for-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/dennis/percpu
Pull percpu updates from Dennis Zhou: "Baoquan was nice enough to run some clean ups for percpu" * 'for-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/dennis/percpu: mm/percpu: remove unused PERCPU_DYNAMIC_EARLY_SLOTS mm/percpu.c: remove the lcm code since block size is fixed at page size mm/percpu: replace the goto with break mm/percpu: add comment to state the empty populated pages accounting mm/percpu: Update the code comment when creating new chunk mm/percpu: use list_first_entry_or_null in pcpu_reclaim_populated() mm/percpu: remove unused pcpu_map_extend_chunks |
||
|
Linus Torvalds
|
e1a1ccef7a |
Livepatching changes for 6.2
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