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bf3aa9de7b
92480 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Linus Torvalds
|
bf3aa9de7b |
New code for 6.11:
* Enable FITRIM on the realtime device.
* Introduce byte-based grant head log reservation tracking instead of
physical log location tracking.
This allows grant head to track a full 64 bit bytes space and hence
overcome the limit of 4GB indexing that has been present until now.
* Fixes
- xfs_flush_unmap_range() and xfs_prepare_shift() should consider RT extents
in the flush unmap range.
- Implement bounds check when traversing log operations during log replay.
- Prevent out of bounds access when traversing a directory data block.
- Prevent incorrect ENOSPC when concurrently performing file creation and
file writes.
- Fix rtalloc rotoring when delalloc is in use
* Cleanups
- Clean up I/O path inode locking helpers and the page fault handler.
- xfs: hoist inode operations to libxfs in anticipation of the metadata
inode directory feature, which maintains a directory tree of metadata
inodes. This will be necessary for further enhancements to the realtime
feature, subvolume support.
- Clean up some warts in the extent freeing log intent code.
- Clean up the refcount and rmap intent code before adding support for
realtime devices.
- Provide the correct email address for sysfs ABI documentation.
Signed-off-by: Chandan Babu R <chandanbabu@kernel.org>
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Merge tag 'xfs-6.11-merge-3' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull xfs updates from Chandan Babu:
"Major changes in this release are limited to enabling FITRIM on
realtime devices and Byte-based grant head log reservation tracking.
The remaining changes are limited to fixes and cleanups included in
this pull request.
Core:
- Enable FITRIM on the realtime device
- Introduce byte-based grant head log reservation tracking instead of
physical log location tracking.
This allows grant head to track a full 64 bit bytes space and hence
overcome the limit of 4GB indexing that has been present until now
Fixes:
- xfs_flush_unmap_range() and xfs_prepare_shift() should consider RT
extents in the flush unmap range
- Implement bounds check when traversing log operations during log
replay
- Prevent out of bounds access when traversing a directory data block
- Prevent incorrect ENOSPC when concurrently performing file creation
and file writes
- Fix rtalloc rotoring when delalloc is in use
Cleanups:
- Clean up I/O path inode locking helpers and the page fault handler
- xfs: hoist inode operations to libxfs in anticipation of the
metadata inode directory feature, which maintains a directory tree
of metadata inodes. This will be necessary for further enhancements
to the realtime feature, subvolume support
- Clean up some warts in the extent freeing log intent code
- Clean up the refcount and rmap intent code before adding support
for realtime devices
- Provide the correct email address for sysfs ABI documentation"
* tag 'xfs-6.11-merge-3' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: (80 commits)
xfs: fix rtalloc rotoring when delalloc is in use
xfs: get rid of xfs_ag_resv_rmapbt_alloc
xfs: skip flushing log items during push
xfs: grant heads track byte counts, not LSNs
xfs: pass the full grant head to accounting functions
xfs: track log space pinned by the AIL
xfs: collapse xlog_state_set_callback in caller
xfs: l_last_sync_lsn is really AIL state
xfs: ensure log tail is always up to date
xfs: background AIL push should target physical space
xfs: AIL doesn't need manual pushing
xfs: move and rename xfs_trans_committed_bulk
xfs: fix the contact address for the sysfs ABI documentation
xfs: Avoid races with cnt_btree lastrec updates
xfs: move xfs_refcount_update_defer_add to xfs_refcount_item.c
xfs: simplify usage of the rcur local variable in xfs_refcount_finish_one
xfs: don't bother calling xfs_refcount_finish_one_cleanup in xfs_refcount_finish_one
xfs: reuse xfs_refcount_update_cancel_item
xfs: add a ci_entry helper
xfs: remove xfs_trans_set_refcount_flags
...
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||
|
Linus Torvalds
|
0260b0a744 |
Description for this pull request:
- Fix deadlock issue reported by syzbot. - Handle idmapped mounts. -----BEGIN PGP SIGNATURE----- iQJKBAABCgA0FiEE6NzKS6Uv/XAAGHgyZwv7A1FEIQgFAmaVIHUWHGxpbmtpbmpl b25Aa2VybmVsLm9yZwAKCRBnC/sDUUQhCIlYEACc4STnNTizxVM2wy2pWvBPYVyL ayBadYoSqK0nK2+tpBIanw294CYOXobnmdnFDfJofeuuvzUq2bUSyrB+WHdhNdQE YuDcEGYzjFMWtedefpxIV9i1mLIpegg+HjCLiHAOhWOKT7ewjLVeqcqjFBtLZw53 JW4jzTAt/gp0NqeSRUs9lNqPt/tM5F/QL8gEorAAQcG/i0MW96uwl53KWdyIyuqD 1bCEIaAOpUVtAkdBSJ5fTDrWIqe8QEkVAiQnujeAll08q2dyQiBHsK4WBNyH9TYO 1XmIhDV6E/x2fxBkthoeCNFvFB9460OV3UveX0j8biXC4XVJMHpvvI6mXZnIT0C4 AtzW16PBUjuRDqwJ8M///ApNu5BS0297LVTXHPv/2SgkqW+08JNtvMHQOk4f7iIB a+AfRltBRnrzQyNkh+SV14mmmxVp2EiTi73m0R5CjAbIuq8efox/RJX1v1MWqc9Q +NkFRM/fvt8RCsCWxo1N3Pu8djjegb/FH1hykk/PhJ0S8/36yosyX7SAzYAbvu9W m6QVbghBO/lJy4WW5JK6lxoh19EHDDCsv4rdGwRr4rfM1nwq4Rx4l2uxJ5jM6f74 0ZHNLjCf/fQP/AgnAnCC3m2JpF6R7e+TykAYlmwx3Lxa3z6NHseSDLjdlKuIen6G G+dD68j5h3X30/7B2g== =xVc5 -----END PGP SIGNATURE----- Merge tag 'exfat-for-6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/exfat Pull exfat updates from Namjae Jeon: - Fix deadlock issue reported by syzbot - Handle idmapped mounts * tag 'exfat-for-6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/exfat: exfat: fix potential deadlock on __exfat_get_dentry_set exfat: handle idmapped mounts |
||
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Linus Torvalds
|
a1b547f0f2 |
for-6.11-tag
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Merge tag 'for-6.11-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs updates from David Sterba:
"The highlights are new logic behind background block group reclaim,
automatic removal of qgroup after removing a subvolume and new
'rescue=' mount options.
The rest is optimizations, cleanups and refactoring.
User visible features:
- dynamic block group reclaim:
- tunable framework to avoid situations where eager data
allocations prevent creating new metadata chunks due to lack of
unallocated space
- reuse sysfs knob bg_reclaim_threshold (otherwise used only in
zoned mode) for a fixed value threshold
- new on/off sysfs knob "dynamic_reclaim" calculating the value
based on heuristics, aiming to keep spare working space for
relocating chunks but not to needlessly relocate partially
utilized block groups or reclaim newly allocated ones
- stats are exported in sysfs per block group type, files
"reclaim_*"
- this may increase IO load at unexpected times but the corner
case of no allocatable block groups is known to be worse
- automatically remove qgroup of deleted subvolumes:
- adjust qgroup removal conditions, make sure all related
subvolume data are already removed, or return EBUSY, also take
into account setting of sysfs drop_subtree_threshold
- also works in squota mode
- mount option updates: new modes of 'rescue=' that allow to mount
images (read-only) that could have been partially converted by user
space tools
- ignoremetacsums - invalid metadata checksums are ignored
- ignoresuperflags - super block flags that track conversion in
progress (like UUID or checksums)
Core:
- size of struct btrfs_inode is now below 1024 (on a release config),
improved memory packing and other secondary effects
- switch tracking of open inodes from rb-tree to xarray, minor
performance improvement
- reduce number of empty transaction commits when there are no dirty
data/metadata
- memory allocation optimizations (reduced numbers, reordering out of
critical sections)
- extent map structure optimizations and refactoring, more sanity
checks
- more subpage in zoned mode preparations or fixes
- general snapshot code cleanups, improvements and documentation
- tree-checker updates: more file extent ram_bytes fixes, continued
- raid-stripe-tree update (not backward compatible):
- remove extent encoding field from the structure, can be inferred
from other information
- requires btrfs-progs 6.9.1 or newer
- cleanups and refactoring
- error message updates
- error handling improvements
- return type and parameter cleanups and improvements"
* tag 'for-6.11-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: (152 commits)
btrfs: fix extent map use-after-free when adding pages to compressed bio
btrfs: fix bitmap leak when loading free space cache on duplicate entry
btrfs: remove the BUG_ON() inside extent_range_clear_dirty_for_io()
btrfs: move extent_range_clear_dirty_for_io() into inode.c
btrfs: enhance compression error messages
btrfs: fix data race when accessing the last_trans field of a root
btrfs: rename the extra_gfp parameter of btrfs_alloc_page_array()
btrfs: remove the extra_gfp parameter from btrfs_alloc_folio_array()
btrfs: introduce new "rescue=ignoresuperflags" mount option
btrfs: introduce new "rescue=ignoremetacsums" mount option
btrfs: output the unrecognized super block flags as hex
btrfs: remove unused Opt enums
btrfs: tree-checker: add extra ram_bytes and disk_num_bytes check
btrfs: fix the ram_bytes assignment for truncated ordered extents
btrfs: make validate_extent_map() catch ram_bytes mismatch
btrfs: ignore incorrect btrfs_file_extent_item::ram_bytes
btrfs: cleanup the bytenr usage inside btrfs_extent_item_to_extent_map()
btrfs: fix typo in error message in btrfs_validate_super()
btrfs: move the direct IO code into its own file
btrfs: pass a btrfs_inode to btrfs_set_prop()
...
|
||
|
Linus Torvalds
|
6706415bf9 |
gfs2 fixes and cleanups
- Revise the glock reference counting model
- Several quota related fixes
- Clean up the glock demote logic
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Merge tag 'gfs2-v6.10-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2
Pull gfs2 updates from Andreas Gruenbacher:
"Fixes and cleanups:
- Revise the glock reference counting model and LRU list handling to
be more sensible
- Several quota related fixes: clean up the quota code, add some
missing locking, and work around the on-disk corruption that the
reverted patch "gfs2: ignore negated quota changes" causes
- Clean up the glock demote logic in glock_work_func()"
* tag 'gfs2-v6.10-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2: (29 commits)
gfs2: Clean up glock demote logic
gfs2: Revert "check for no eligible quota changes"
gfs2: Be more careful with the quota sync generation
gfs2: Get rid of some unnecessary quota locking
gfs2: Add some missing quota locking
gfs2: Fold qd_fish into gfs2_quota_sync
gfs2: quota need_sync cleanup
gfs2: Fix and clean up function do_qc
gfs2: Revert "Add quota_change type"
gfs2: Revert "ignore negated quota changes"
gfs2: qd_check_sync cleanups
gfs2: Revert "introduce qd_bh_get_or_undo"
gfs2: Check quota consistency on mount
gfs2: Minor gfs2_quota_init error path cleanup
gfs2: Get rid of demote_ok checks
Revert "GFS2: Don't add all glocks to the lru"
gfs2: Revise glock reference counting model
gfs2: Switch to a per-filesystem glock workqueue
gfs2: Report when glocks cannot be freed for a long time
gfs2: gfs2_glock_get cleanup
...
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||
|
Linus Torvalds
|
f097ef0e76 |
dlm for 6.11
- New flag DLM_LSFL_SOFTIRQ_SAFE can be set by code using dlm to indicate callbacks can be run from softirq. - Change md-cluster to set DLM_LSFL_SOFTIRQ_SAFE. - Clean up for previous changes, e.g. unused code and parameters. - Remove custom pre-allocation of rsb structs which is unnecessary with kmem caches. - Change idr to xarray for lkb structs in use. - Change idr to xarray for rsb structs being recovered. - Change outdated naming related to internal rsb states. - Fix some incorrect add/remove of rsb on scan list. - Use rcu to free rsb structs. -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEcGkeEvkvjdvlR90nOBtzx/yAaaoFAmaVUlgACgkQOBtzx/yA aapCfQ//eqs19no6+TUagkzboIGxGbrPEqmJNj4Vu1sCSH3tVC4IrkI2IqqPJL9N tYHUQvp3BYOdenBZzw6tmbs6cvoA7Fps7YMqqkEKYfBCHcV9KtejqvwBdJfqiN6A RniImAph0qvvI6GK4Y+6nDyxU2n8enOhgnZMRDUS/KYV8frc70SxreqzPSkPMWLh ZnDgTIF4zahUBFEkILlXYArbbRk5FKL+SMkSDZyDd78bVnjX24KgtOt7HpDX9X70 /9DrDz3uI+XShXzpIint4Ee4ghZr1lM9g9LXDazuY62SBDknhGTzY0BYVxZ2U3NG ocUh2KbJoP29sncNxLf9Nev5JPc+Wx3iCTEgLKkOEc4Yf0jAZg+1xbopWDT+qjRV djsgTCQ1gjpHgQxrlUUo7N5ilo5ocgSXSHGJ8b886tG5eZaxiN1y3TB4T4JtO+FH Q4IkFJiaYDL44xYR85wpfOcct/5mR7kPvhuxouexKobO+lKXaUONP9Wj7pRgG/M5 qhrWY4EU8jcO/nPunPxvhJdL68T3WoHDN42tWt/7kYQqY2svvfmr6NEImde6GxqX PB3hW20cvD4wULumLM+h0rQacIWuuMQ5ahIX9og6jM7Yx/ucks1pgnRo0M0R1aUc OopoTAekSdRtgbRXr5IQPRxpKB6BFUp3Va/Yo+2g0fi5QywcVZc= =dDCi -----END PGP SIGNATURE----- Merge tag 'dlm-6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm Pull dlm updates from David Teigland: - New flag DLM_LSFL_SOFTIRQ_SAFE can be set by code using dlm to indicate callbacks can be run from softirq - Change md-cluster to set DLM_LSFL_SOFTIRQ_SAFE - Clean up for previous changes, e.g. unused code and parameters - Remove custom pre-allocation of rsb structs which is unnecessary with kmem caches - Change idr to xarray for lkb structs in use - Change idr to xarray for rsb structs being recovered - Change outdated naming related to internal rsb states - Fix some incorrect add/remove of rsb on scan list - Use rcu to free rsb structs * tag 'dlm-6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm: dlm: add rcu_barrier before destroy kmem cache dlm: remove DLM_LSFL_SOFTIRQ from exflags fs: dlm: remove unused struct 'dlm_processed_nodes' md-cluster: use DLM_LSFL_SOFTIRQ for dlm_new_lockspace() dlm: implement LSFL_SOFTIRQ_SAFE dlm: introduce DLM_LSFL_SOFTIRQ_SAFE dlm: use LSFL_FS to check for kernel lockspace dlm: use rcu to avoid an extra rsb struct lookup dlm: fix add_scan and del_scan usage dlm: change list and timer names dlm: move recover idr to xarray datastructure dlm: move lkb idr to xarray datastructure dlm: drop own rsb pre allocation mechanism dlm: remove ls_local_handle from struct dlm_ls dlm: remove unused parameter in dlm_midcomms_addr dlm: don't kref_init rsbs created for toss list dlm: remove scand leftovers |
||
|
Linus Torvalds
|
586f14a6a1 |
Changes since last update:
- More folio conversions for compressed inodes;
- Stream decompressor (LZMA/DEFLATE/ZSTD) cleanups;
- Minor tracepoint cleanup.
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Merge tag 'erofs-for-6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs
Pull erofs updates from Gao Xiang:
"Updates for folio conversions for compressed inodes: While large folio
support for compressed data could work now, it remains disabled since
the stress test could hang due to page migration in a few hours after
enabling it. I need more time to investigate further before enabling
this feature.
Additionally, clean up stream decompressors and tracepoints for
simplicity.
Summary:
- More folio conversions for compressed inodes
- Stream decompressor (LZMA/DEFLATE/ZSTD) cleanups
- Minor tracepoint cleanup"
* tag 'erofs-for-6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs:
erofs: silence uninitialized variable warning in z_erofs_scan_folio()
erofs: avoid refcounting short-lived pages
erofs: get rid of z_erofs_map_blocks_iter_* tracepoints
erofs: tidy up stream decompressors
erofs: refine z_erofs_{init,exit}_subsystem()
erofs: move each decompressor to its own source file
erofs: tidy up `struct z_erofs_bvec`
erofs: teach z_erofs_scan_folios() to handle multi-page folios
erofs: convert z_erofs_read_fragment() to folios
erofs: convert z_erofs_pcluster_readmore() to folios
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||
|
Linus Torvalds
|
586a7a8542 |
NFSD 6.11 Release Notes
This is a light release containing optimizations, code clean-ups,
and minor bug fixes. This development cycle focused on work outside
of upstream kernel development:
1. Continuing to build upstream CI for NFSD based on kdevops
2. Continuing to focus on the quality of NFSD in LTS kernels
3. Participation in IETF nfsv4 WG discussions about NFSv4 ACLs,
directory delegation, and NFSv4.2 COPY offload
Notable features in v6.11 that were not pulled through the NFSD tree
include NFS server-side support for the new pNFS NVMe layout type
[RFC9561]. Functional testing for pNFS block layouts like this one
has been introduced to our kdevops CI harness. Work on improving
the resolution of file attribute time stamps in local filesystems
is also ongoing tree-wide.
As always I am grateful to NFSD contributors, reviewers, testers,
and bug reporters who participated during this cycle.
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Merge tag 'nfsd-6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux
Pull nfsd updates from Chuck Lever:
"This is a light release containing optimizations, code clean-ups, and
minor bug fixes.
This development cycle focused on work outside of upstream kernel
development:
- Continuing to build upstream CI for NFSD based on kdevops
- Continuing to focus on the quality of NFSD in LTS kernels
- Participation in IETF nfsv4 WG discussions about NFSv4 ACLs,
directory delegation, and NFSv4.2 COPY offload
Notable features for v6.11 that do not come through the NFSD tree
include NFS server-side support for the new pNFS NVMe layout type
[RFC9561]. Functional testing for pNFS block layouts like this one has
been introduced to our kdevops CI harness. Work on improving the
resolution of file attribute time stamps in local filesystems is also
ongoing tree-wide.
As always I am grateful to NFSD contributors, reviewers, testers, and
bug reporters who participated during this cycle"
* tag 'nfsd-6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux:
nfsd: nfsd_file_lease_notifier_call gets a file_lease as an argument
gss_krb5: Fix the error handling path for crypto_sync_skcipher_setkey
MAINTAINERS: Add a bugzilla link for NFSD
nfsd: new netlink ops to get/set server pool_mode
sunrpc: refactor pool_mode setting code
nfsd: allow passing in array of thread counts via netlink
nfsd: make nfsd_svc take an array of thread counts
sunrpc: fix up the special handling of sv_nrpools == 1
SUNRPC: Add a trace point in svc_xprt_deferred_close
NFSD: Support write delegations in LAYOUTGET
lockd: Use *-y instead of *-objs in Makefile
NFSD: Fix nfsdcld warning
svcrdma: Handle ADDR_CHANGE CM event properly
svcrdma: Refactor the creation of listener CMA ID
NFSD: remove unused structs 'nfsd3_voidargs'
NFSD: harden svcxdr_dupstr() and svcxdr_tmpalloc() against integer overflows
|
||
|
Linus Torvalds
|
48f8bfd481 |
affs-6.11-tag
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||
|
Linus Torvalds
|
51835949dd |
Networking changes for 6.11. Not much excitement - a handful of large
patchsets (devmem among them) did not make it in time.
Core & protocols
----------------
- Use local_lock in addition to local_bh_disable() to protect per-CPU
resources in networking, a step closer for local_bh_disable() not
to act as a big lock on PREEMPT_RT.
- Use flex array for netdevice priv area, ensure its cache alignment.
- Add a sysctl knob to allow user to specify a default rto_min at socket
init time. Bit of a big hammer but multiple companies were
independently carrying such patch downstream so clearly it's useful.
- Support scheduling transmission of packets based on CLOCK_TAI.
- Un-pin TCP TIMEWAIT timer to avoid it firing on CPUs later cordoned off
using cpusets.
- Support multiple L2TPv3 UDP tunnels using the same 5-tuple address.
- Allow configuration of multipath hash seed, to both allow synchronizing
hashing of two routers, and preventing partial accidental sync.
- Improve TCP compliance with RFC 9293 for simultaneous connect().
- Support sending NAT keepalives in IPsec ESP in UDP states. Userspace
IKE daemon had to do this before, but the kernel can better keep
track of it.
- Support sending supervision HSR frames with MAC addresses stored in
ProxyNodeTable when RedBox (i.e. HSR-SAN) is enabled.
- Introduce IPPROTO_SMC for selecting SMC when socket is created.
- Allow UDP GSO transmit from devices with no checksum offload.
- openvswitch: add packet sampling via psample, separating the sampled
traffic from "upcall" packets sent to user space for forwarding.
- nf_tables: shrink memory consumption for transaction objects.
Things we sprinkled into general kernel code
--------------------------------------------
- Power Sequencing subsystem (used by Qualcomm Bluetooth driver
for QCA6390).
- Add IRQ information in sysfs for auxiliary bus.
- Introduce guard definition for local_lock.
- Add aligned flavor of __cacheline_group_{begin, end}() markings for
grouping fields in structures.
BPF
---
- Notify user space (via epoll) when a struct_ops object is getting
detached/unregistered.
- Add new kfuncs for a generic, open-coded bits iterator.
- Enable BPF programs to declare arrays of kptr, bpf_rb_root, and
bpf_list_head.
- Support resilient split BTF which cuts down on duplication and makes
BTF as compact as possible WRT BTF from modules.
- Add support for dumping kfunc prototypes from BTF which enables both
detecting as well as dumping compilable prototypes for kfuncs.
- riscv64 BPF JIT improvements in particular to add 12-argument support
for BPF trampolines and to utilize bpf_prog_pack for the latter.
- Add the capability to offload the netfilter flowtable in XDP layer
through kfuncs.
Driver API
----------
- Allow users to configure IRQ tresholds between which automatic IRQ
moderation can choose.
- Expand Power Sourcing (PoE) status with power, class and failure
reason. Support setting power limits.
- Track additional RSS contexts in the core, make sure configuration
changes don't break them.
- Support IPsec crypto offload for IPv6 ESP and IPv4 UDP-encapsulated ESP
data paths.
- Support updating firmware on SFP modules.
Tests and tooling
-----------------
- mptcp: use net/lib.sh to manage netns.
- TCP-AO and TCP-MD5: replace debug prints used by tests with
tracepoints.
- openvswitch: make test self-contained (don't depend on OvS CLI tools).
Drivers
-------
- Ethernet high-speed NICs:
- Broadcom (bnxt):
- increase the max total outstanding PTP TX packets to 4
- add timestamping statistics support
- implement netdev_queue_mgmt_ops
- support new RSS context API
- Intel (100G, ice, idpf):
- implement FEC statistics and dumping signal quality indicators
- support E825C products (with 56Gbps PHYs)
- nVidia/Mellanox:
- support HW-GRO
- mlx4/mlx5: support per-queue statistics via netlink
- obey the max number of EQs setting in sub-functions
- AMD/Solarflare:
- support new RSS context API
- AMD/Pensando:
- ionic: rework fix for doorbell miss to lower overhead
and skip it on new HW
- Wangxun:
- txgbe: support Flow Director perfect filters
- Ethernet NICs consumer, embedded and virtual:
- Add driver for Tehuti Networks TN40xx chips
- Add driver for Meta's internal NIC chips
- Add driver for Ethernet MAC on Airoha EN7581 SoCs
- Add driver for Renesas Ethernet-TSN devices
- Google cloud vNIC:
- flow steering support
- Microsoft vNIC:
- support page sizes other than 4KB on ARM64
- vmware vNIC:
- support latency measurement (update to version 9)
- VirtIO net:
- support for Byte Queue Limits
- support configuring thresholds for automatic IRQ moderation
- support for AF_XDP Rx zero-copy
- Synopsys (stmmac):
- support for STM32MP13 SoC
- let platforms select the right PCS implementation
- TI:
- icssg-prueth: add multicast filtering support
- icssg-prueth: enable PTP timestamping and PPS
- Renesas:
- ravb: improve Rx performance 30-400% by using page pool,
theaded NAPI and timer-based IRQ coalescing
- ravb: add MII support for R-Car V4M
- Cadence (macb):
- macb: add ARP support to Wake-On-LAN
- Cortina:
- use phylib for RX and TX pause configuration
- Ethernet switches:
- nVidia/Mellanox:
- support configuration of multipath hash seed
- report more accurate max MTU
- use page_pool to improve Rx performance
- MediaTek:
- mt7530: add support for bridge port isolation
- Qualcomm:
- qca8k: add support for bridge port isolation
- Microchip:
- lan9371/2: add 100BaseTX PHY support
- NXP:
- vsc73xx: implement VLAN operations
- Ethernet PHYs:
- aquantia: enable support for aqr115c
- aquantia: add support for PHY LEDs
- realtek: add support for rtl8224 2.5Gbps PHY
- xpcs: add memory-mapped device support
- add BroadR-Reach link mode and support in Broadcom's PHY driver
- CAN:
- add document for ISO 15765-2 protocol support
- mcp251xfd: workaround for erratum DS80000789E, use timestamps
to catch when device returns incorrect FIFO status
- WiFi:
- mac80211/cfg80211:
- parse Transmit Power Envelope (TPE) data in mac80211 instead of
in drivers
- improvements for 6 GHz regulatory flexibility
- multi-link improvements
- support multiple radios per wiphy
- remove DEAUTH_NEED_MGD_TX_PREP flag
- Intel (iwlwifi):
- bump FW API to 91 for BZ/SC devices
- report 64-bit radiotap timestamp
- enable P2P low latency by default
- handle Transmit Power Envelope (TPE) advertised by AP
- remove support for older FW for new devices
- fast resume (keeping the device configured)
- mvm: re-enable Multi-Link Operation (MLO)
- aggregation (A-MSDU) optimizations
- MediaTek (mt76):
- mt7925 Multi-Link Operation (MLO) support
- Qualcomm (ath10k):
- LED support for various chipsets
- Qualcomm (ath12k):
- remove unsupported Tx monitor handling
- support channel 2 in 6 GHz band
- support Spatial Multiplexing Power Save (SMPS) in 6 GHz band
- supprt multiple BSSID (MBSSID) and Enhanced Multi-BSSID
Advertisements (EMA)
- support dynamic VLAN
- add panic handler for resetting the firmware state
- DebugFS support for datapath statistics
- WCN7850: support for Wake on WLAN
- Microchip (wilc1000):
- read MAC address during probe to make it visible to user space
- suspend/resume improvements
- TI (wl18xx):
- support newer firmware versions
- RealTek (rtw89):
- preparation for RTL8852BE-VT support
- Wake on WLAN support for WiFi 6 chips
- 36-bit PCI DMA support
- RealTek (rtlwifi):
- RTL8192DU support
- Broadcom (brcmfmac):
- Management Frame Protection support (to enable WPA3)
- Bluetooth:
- qualcomm: use the power sequencer for QCA6390
- btusb: mediatek: add ISO data transmission functions
- hci_bcm4377: add BCM4388 support
- btintel: add support for BlazarU core
- btintel: add support for Whale Peak2
- btnxpuart: add support for AW693 A1 chipset
- btnxpuart: add support for IW615 chipset
- btusb: add Realtek RTL8852BE support ID 0x13d3:0x3591
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-next-6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from Jakub Kicinski:
"Not much excitement - a handful of large patchsets (devmem among them)
did not make it in time.
Core & protocols:
- Use local_lock in addition to local_bh_disable() to protect per-CPU
resources in networking, a step closer for local_bh_disable() not
to act as a big lock on PREEMPT_RT
- Use flex array for netdevice priv area, ensure its cache alignment
- Add a sysctl knob to allow user to specify a default rto_min at
socket init time. Bit of a big hammer but multiple companies were
independently carrying such patch downstream so clearly it's useful
- Support scheduling transmission of packets based on CLOCK_TAI
- Un-pin TCP TIMEWAIT timer to avoid it firing on CPUs later cordoned
off using cpusets
- Support multiple L2TPv3 UDP tunnels using the same 5-tuple address
- Allow configuration of multipath hash seed, to both allow
synchronizing hashing of two routers, and preventing partial
accidental sync
- Improve TCP compliance with RFC 9293 for simultaneous connect()
- Support sending NAT keepalives in IPsec ESP in UDP states.
Userspace IKE daemon had to do this before, but the kernel can
better keep track of it
- Support sending supervision HSR frames with MAC addresses stored in
ProxyNodeTable when RedBox (i.e. HSR-SAN) is enabled
- Introduce IPPROTO_SMC for selecting SMC when socket is created
- Allow UDP GSO transmit from devices with no checksum offload
- openvswitch: add packet sampling via psample, separating the
sampled traffic from "upcall" packets sent to user space for
forwarding
- nf_tables: shrink memory consumption for transaction objects
Things we sprinkled into general kernel code:
- Power Sequencing subsystem (used by Qualcomm Bluetooth driver for
QCA6390) [ Already merged separately - Linus ]
- Add IRQ information in sysfs for auxiliary bus
- Introduce guard definition for local_lock
- Add aligned flavor of __cacheline_group_{begin, end}() markings for
grouping fields in structures
BPF:
- Notify user space (via epoll) when a struct_ops object is getting
detached/unregistered
- Add new kfuncs for a generic, open-coded bits iterator
- Enable BPF programs to declare arrays of kptr, bpf_rb_root, and
bpf_list_head
- Support resilient split BTF which cuts down on duplication and
makes BTF as compact as possible WRT BTF from modules
- Add support for dumping kfunc prototypes from BTF which enables
both detecting as well as dumping compilable prototypes for kfuncs
- riscv64 BPF JIT improvements in particular to add 12-argument
support for BPF trampolines and to utilize bpf_prog_pack for the
latter
- Add the capability to offload the netfilter flowtable in XDP layer
through kfuncs
Driver API:
- Allow users to configure IRQ tresholds between which automatic IRQ
moderation can choose
- Expand Power Sourcing (PoE) status with power, class and failure
reason. Support setting power limits
- Track additional RSS contexts in the core, make sure configuration
changes don't break them
- Support IPsec crypto offload for IPv6 ESP and IPv4 UDP-encapsulated
ESP data paths
- Support updating firmware on SFP modules
Tests and tooling:
- mptcp: use net/lib.sh to manage netns
- TCP-AO and TCP-MD5: replace debug prints used by tests with
tracepoints
- openvswitch: make test self-contained (don't depend on OvS CLI
tools)
Drivers:
- Ethernet high-speed NICs:
- Broadcom (bnxt):
- increase the max total outstanding PTP TX packets to 4
- add timestamping statistics support
- implement netdev_queue_mgmt_ops
- support new RSS context API
- Intel (100G, ice, idpf):
- implement FEC statistics and dumping signal quality indicators
- support E825C products (with 56Gbps PHYs)
- nVidia/Mellanox:
- support HW-GRO
- mlx4/mlx5: support per-queue statistics via netlink
- obey the max number of EQs setting in sub-functions
- AMD/Solarflare:
- support new RSS context API
- AMD/Pensando:
- ionic: rework fix for doorbell miss to lower overhead and
skip it on new HW
- Wangxun:
- txgbe: support Flow Director perfect filters
- Ethernet NICs consumer, embedded and virtual:
- Add driver for Tehuti Networks TN40xx chips
- Add driver for Meta's internal NIC chips
- Add driver for Ethernet MAC on Airoha EN7581 SoCs
- Add driver for Renesas Ethernet-TSN devices
- Google cloud vNIC:
- flow steering support
- Microsoft vNIC:
- support page sizes other than 4KB on ARM64
- vmware vNIC:
- support latency measurement (update to version 9)
- VirtIO net:
- support for Byte Queue Limits
- support configuring thresholds for automatic IRQ moderation
- support for AF_XDP Rx zero-copy
- Synopsys (stmmac):
- support for STM32MP13 SoC
- let platforms select the right PCS implementation
- TI:
- icssg-prueth: add multicast filtering support
- icssg-prueth: enable PTP timestamping and PPS
- Renesas:
- ravb: improve Rx performance 30-400% by using page pool,
theaded NAPI and timer-based IRQ coalescing
- ravb: add MII support for R-Car V4M
- Cadence (macb):
- macb: add ARP support to Wake-On-LAN
- Cortina:
- use phylib for RX and TX pause configuration
- Ethernet switches:
- nVidia/Mellanox:
- support configuration of multipath hash seed
- report more accurate max MTU
- use page_pool to improve Rx performance
- MediaTek:
- mt7530: add support for bridge port isolation
- Qualcomm:
- qca8k: add support for bridge port isolation
- Microchip:
- lan9371/2: add 100BaseTX PHY support
- NXP:
- vsc73xx: implement VLAN operations
- Ethernet PHYs:
- aquantia: enable support for aqr115c
- aquantia: add support for PHY LEDs
- realtek: add support for rtl8224 2.5Gbps PHY
- xpcs: add memory-mapped device support
- add BroadR-Reach link mode and support in Broadcom's PHY driver
- CAN:
- add document for ISO 15765-2 protocol support
- mcp251xfd: workaround for erratum DS80000789E, use timestamps to
catch when device returns incorrect FIFO status
- WiFi:
- mac80211/cfg80211:
- parse Transmit Power Envelope (TPE) data in mac80211 instead
of in drivers
- improvements for 6 GHz regulatory flexibility
- multi-link improvements
- support multiple radios per wiphy
- remove DEAUTH_NEED_MGD_TX_PREP flag
- Intel (iwlwifi):
- bump FW API to 91 for BZ/SC devices
- report 64-bit radiotap timestamp
- enable P2P low latency by default
- handle Transmit Power Envelope (TPE) advertised by AP
- remove support for older FW for new devices
- fast resume (keeping the device configured)
- mvm: re-enable Multi-Link Operation (MLO)
- aggregation (A-MSDU) optimizations
- MediaTek (mt76):
- mt7925 Multi-Link Operation (MLO) support
- Qualcomm (ath10k):
- LED support for various chipsets
- Qualcomm (ath12k):
- remove unsupported Tx monitor handling
- support channel 2 in 6 GHz band
- support Spatial Multiplexing Power Save (SMPS) in 6 GHz band
- supprt multiple BSSID (MBSSID) and Enhanced Multi-BSSID
Advertisements (EMA)
- support dynamic VLAN
- add panic handler for resetting the firmware state
- DebugFS support for datapath statistics
- WCN7850: support for Wake on WLAN
- Microchip (wilc1000):
- read MAC address during probe to make it visible to user space
- suspend/resume improvements
- TI (wl18xx):
- support newer firmware versions
- RealTek (rtw89):
- preparation for RTL8852BE-VT support
- Wake on WLAN support for WiFi 6 chips
- 36-bit PCI DMA support
- RealTek (rtlwifi):
- RTL8192DU support
- Broadcom (brcmfmac):
- Management Frame Protection support (to enable WPA3)
- Bluetooth:
- qualcomm: use the power sequencer for QCA6390
- btusb: mediatek: add ISO data transmission functions
- hci_bcm4377: add BCM4388 support
- btintel: add support for BlazarU core
- btintel: add support for Whale Peak2
- btnxpuart: add support for AW693 A1 chipset
- btnxpuart: add support for IW615 chipset
- btusb: add Realtek RTL8852BE support ID 0x13d3:0x3591"
* tag 'net-next-6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1589 commits)
eth: fbnic: Fix spelling mistake "tiggerring" -> "triggering"
tcp: Replace strncpy() with strscpy()
wifi: ath12k: fix build vs old compiler
tcp: Don't access uninit tcp_rsk(req)->ao_keyid in tcp_create_openreq_child().
eth: fbnic: Write the TCAM tables used for RSS control and Rx to host
eth: fbnic: Add L2 address programming
eth: fbnic: Add basic Rx handling
eth: fbnic: Add basic Tx handling
eth: fbnic: Add link detection
eth: fbnic: Add initial messaging to notify FW of our presence
eth: fbnic: Implement Rx queue alloc/start/stop/free
eth: fbnic: Implement Tx queue alloc/start/stop/free
eth: fbnic: Allocate a netdevice and napi vectors with queues
eth: fbnic: Add FW communication mechanism
eth: fbnic: Add message parsing for FW messages
eth: fbnic: Add register init to set PCIe/Ethernet device config
eth: fbnic: Allocate core device specific structures and devlink interface
eth: fbnic: Add scaffolding for Meta's NIC driver
PCI: Add Meta Platforms vendor ID
net/sched: cls_flower: propagate tca[TCA_OPTIONS] to NL_REQ_ATTR_CHECK
...
|
||
|
Linus Torvalds
|
f8a8b94d06 |
sysctl changes for 6.11-rc1
Summary
* Remove "->procname == NULL" check when iterating through sysctl table arrays
Removing sentinels in ctl_table arrays reduces the build time size and
runtime memory consumed by ~64 bytes per array. With all ctl_table
sentinels gone, the additional check for ->procname == NULL that worked in
tandem with the ARRAY_SIZE to calculate the size of the ctl_table arrays is
no longer needed and has been removed. The sysctl register functions now
returns an error if a sentinel is used.
* Preparation patches for sysctl constification
Constifying ctl_table structs prevents the modification of proc_handler
function pointers as they would reside in .rodata. The ctl_table arguments
in sysctl utility functions are const qualified in preparation for a future
treewide proc_handler argument constification commit.
* Misc fixes
Increase robustness of set_ownership by providing sane default ownership
values in case the callee doesn't set them. Bound check proc_dou8vec_minmax
to avoid loading buggy modules and give sysctl testing module a name to
avoid compiler complaints.
Testing
* This got push to linux-next in v6.10-rc2, so it has had more than a month
of testing
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Merge tag 'sysctl-6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/sysctl/sysctl
Pull sysctl updates from Joel Granados:
- Remove "->procname == NULL" check when iterating through sysctl table
arrays
Removing sentinels in ctl_table arrays reduces the build time size
and runtime memory consumed by ~64 bytes per array. With all
ctl_table sentinels gone, the additional check for ->procname == NULL
that worked in tandem with the ARRAY_SIZE to calculate the size of
the ctl_table arrays is no longer needed and has been removed. The
sysctl register functions now returns an error if a sentinel is used.
- Preparation patches for sysctl constification
Constifying ctl_table structs prevents the modification of
proc_handler function pointers as they would reside in .rodata. The
ctl_table arguments in sysctl utility functions are const qualified
in preparation for a future treewide proc_handler argument
constification commit.
- Misc fixes
Increase robustness of set_ownership by providing sane default
ownership values in case the callee doesn't set them. Bound check
proc_dou8vec_minmax to avoid loading buggy modules and give sysctl
testing module a name to avoid compiler complaints.
* tag 'sysctl-6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/sysctl/sysctl:
sysctl: Warn on an empty procname element
sysctl: Remove ctl_table sentinel code comments
sysctl: Remove "child" sysctl code comments
sysctl: Remove superfluous empty allocations from sysctl internals
sysctl: Replace nr_entries with ctl_table_size in new_links
sysctl: Remove check for sentinel element in ctl_table arrays
mm profiling: Remove superfluous sentinel element from ctl_table
locking: Remove superfluous sentinel element from kern_lockdep_table
sysctl: Add module description to sysctl-testing
sysctl: constify ctl_table arguments of utility function
utsname: constify ctl_table arguments of utility function
sysctl: move the extra1/2 boundary check of u8 to sysctl_check_table_array
sysctl: always initialize i_uid/i_gid
|
||
|
Linus Torvalds
|
8050258bd1 |
pstore updates for v6.11-rc1
- Add missing MODULE_DESCRIPTION() macro (Jeff Johnson) - Replace deprecated strncpy() with strscpy() (Justin Stitt) -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEpcP2jyKd1g9yPm4TiXL039xtwCYFAmaVTbMACgkQiXL039xt wCZPyQ//f0ooVUWWXs3+amTVMkYVzlTLY8Y+0Lh/7ZsrMJdXyO0DMIhdow2Zq9F/ u/tNJBpZXSBxxTOdYz46Yww/qLkQZ3/Hc2RuvQLrdgtE4nPH0PK2AdUiRp17zcPI 0glBD+6geBeYlFKrFGgsNcVxhaRl6YMSl6hFxgEtaZx+ifhh2x5faPaoEBwjm1Fr Hq53SJCH5sEwcLId0/Vn+/2YFOsgAj3Cp/BckaRlqK5/8aCbDAt5FOQf1dlJT8Zx jsI7Lujs5tt/7VHtVJgEQ4VqAoLeoe1uvV56+++gQ0kCyYDS2YGByKGYU8UAG/5z 3W+Jg38BkxnJWInPnVvGzu6S7+4RO0nG4+8Yo2KTumXKBsvzbM6ur9T+W0tpicak Pnts45ti4b8Oh2ApE3eqbpB96IIePaLkiX6noIa/j04upvrvrJ0VPDXkNigU3RGv lPgO/gHUeGCnvEgKZNQ8x3r3Y6AKeeBo0OOZPfA2hXMJOPl7NhW11HW0QGSCGgAi vvJfUEF7z7sK8GuC7MqhZDAAG2lXZXGdLyFk+vzweLlxa+YKKO3cSfDQ7PY2Lgk1 enKbR/hbAk/E5jZ3crPuECRTMLBF9XW9sUFso5X96Gb4XUcqZ+dmWR9CldEj7t14 L8zlCniruuuU838OJYfJi+XDy0FxytocQVUHZmrqGQrqLnnlWAE= =08Ea -----END PGP SIGNATURE----- Merge tag 'pstore-v6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux Pull pstore updates from Kees Cook: - Add missing MODULE_DESCRIPTION() macro (Jeff Johnson) - Replace deprecated strncpy() with strscpy() (Justin Stitt) * tag 'pstore-v6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: pstore: platform: add missing MODULE_DESCRIPTION() macro pstore/blk: replace deprecated strncpy with strscpy |
||
|
Linus Torvalds
|
72fda6c8e5 |
execve updates for v6.11-rc1
- Use value of kernel.randomize_va_space once per exec (Alexey Dobriyan) - Honor PT_LOAD alignment for static PIE - Make bprm->argmin only visible under CONFIG_MMU - Add KUnit testing of bprm_stack_limits() -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEpcP2jyKd1g9yPm4TiXL039xtwCYFAmaVTFAACgkQiXL039xt wCYyZw//ZcPV2hu48WqqOImL8LI9HIUaZqKQpixGQRD5VcTRb5MKg8g3Wi4EBHz+ Kg6QvTEOQdg6NbfE9fH8VIIwcp3dAxdWN6g+3A0HHDSRdb8Ye1ucnzB2kgmEkM1l huBRn5tnoS0vn2fxafu1O5tj330kKAvTsemsy316cxmbKNs7ckHdfwuVgZHcuyEt OrOA3ZSTWwjkSiA9tatsi5iAQ34tQYGwDEosf06avlnPkQqsRzn3wNlohAPjQF6V kjRfX/Mxz2EHa0mjXy2OkhNyPSn6wu0OcmF0ympySHzxm726uRggG+olT5ziUc+2 DW6Gz6TJ1P8Gu+uTEoz6AY+l5Bpo9ZLYSBm+Mp88sxAT6+Xcc68XeZsFZHmefJzs 6g6EdmwhDEP/Xd3sIsNphdkS5q1RMgc7tdAtyK8GCaACsHUlU4CfzRYh2mWxpIg6 hA7oM5KF9FuToLtaIS6K/yYQIVsTKAaA7t+5K/a1RUyKzcJ0O7UpMx1oEge2sPEK RnETCYhQs0Cxm11iJ/eqEFzWm0Puxjsjz/P/j5H5U8usx9VUoz0HuS91fNEIY3S9 y7bn09wxuUv4QddKYgltkurxCCB//Nv7jPYo96pKIW3T56XkfsrYLvNH2W95cCNz OMvZImA1J/vQubSODrgeQsfMRsaJodHU3acWyYQ90HmmoWx4JS4= =bO7x -----END PGP SIGNATURE----- Merge tag 'execve-v6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux Pull execve updates from Kees Cook: - Use value of kernel.randomize_va_space once per exec (Alexey Dobriyan) - Honor PT_LOAD alignment for static PIE - Make bprm->argmin only visible under CONFIG_MMU - Add KUnit testing of bprm_stack_limits() * tag 'execve-v6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: exec: Avoid pathological argc, envc, and bprm->p values execve: Keep bprm->argmin behind CONFIG_MMU ELF: fix kernel.randomize_va_space double read exec: Add KUnit test for bprm_stack_limits() binfmt_elf: Honor PT_LOAD alignment for static PIE binfmt_elf: Calculate total_size earlier selftests/exec: Build both static and non-static load_address tests |
||
|
Linus Torvalds
|
408323581b |
- Add support for running the kernel in a SEV-SNP guest, over a Secure
VM Service Module (SVSM).
When running over a SVSM, different services can run at different
protection levels, apart from the guest OS but still within the
secure SNP environment. They can provide services to the guest, like
a vTPM, for example.
This series adds the required facilities to interface with such a SVSM
module.
- The usual fixlets, refactoring and cleanups
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Merge tag 'x86_sev_for_v6.11_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 SEV updates from Borislav Petkov:
- Add support for running the kernel in a SEV-SNP guest, over a Secure
VM Service Module (SVSM).
When running over a SVSM, different services can run at different
protection levels, apart from the guest OS but still within the
secure SNP environment. They can provide services to the guest, like
a vTPM, for example.
This series adds the required facilities to interface with such a
SVSM module.
- The usual fixlets, refactoring and cleanups
[ And as always: "SEV" is AMD's "Secure Encrypted Virtualization".
I can't be the only one who gets all the newer x86 TLA's confused,
can I?
- Linus ]
* tag 'x86_sev_for_v6.11_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
Documentation/ABI/configfs-tsm: Fix an unexpected indentation silly
x86/sev: Do RMP memory coverage check after max_pfn has been set
x86/sev: Move SEV compilation units
virt: sev-guest: Mark driver struct with __refdata to prevent section mismatch
x86/sev: Allow non-VMPL0 execution when an SVSM is present
x86/sev: Extend the config-fs attestation support for an SVSM
x86/sev: Take advantage of configfs visibility support in TSM
fs/configfs: Add a callback to determine attribute visibility
sev-guest: configfs-tsm: Allow the privlevel_floor attribute to be updated
virt: sev-guest: Choose the VMPCK key based on executing VMPL
x86/sev: Provide guest VMPL level to userspace
x86/sev: Provide SVSM discovery support
x86/sev: Use the SVSM to create a vCPU when not in VMPL0
x86/sev: Perform PVALIDATE using the SVSM when not at VMPL0
x86/sev: Use kernel provided SVSM Calling Areas
x86/sev: Check for the presence of an SVSM in the SNP secrets page
x86/irqflags: Provide native versions of the local_irq_save()/restore()
|
||
|
Linus Torvalds
|
3e78198862 |
for-6.11/block-20240710
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Merge tag 'for-6.11/block-20240710' of git://git.kernel.dk/linux
Pull block updates from Jens Axboe:
- NVMe updates via Keith:
- Device initialization memory leak fixes (Keith)
- More constants defined (Weiwen)
- Target debugfs support (Hannes)
- PCIe subsystem reset enhancements (Keith)
- Queue-depth multipath policy (Redhat and PureStorage)
- Implement get_unique_id (Christoph)
- Authentication error fixes (Gaosheng)
- MD updates via Song
- sync_action fix and refactoring (Yu Kuai)
- Various small fixes (Christoph Hellwig, Li Nan, and Ofir Gal, Yu
Kuai, Benjamin Marzinski, Christophe JAILLET, Yang Li)
- Fix loop detach/open race (Gulam)
- Fix lower control limit for blk-throttle (Yu)
- Add module descriptions to various drivers (Jeff)
- Add support for atomic writes for block devices, and statx reporting
for same. Includes SCSI and NVMe (John, Prasad, Alan)
- Add IO priority information to block trace points (Dongliang)
- Various zone improvements and tweaks (Damien)
- mq-deadline tag reservation improvements (Bart)
- Ignore direct reclaim swap writes in writeback throttling (Baokun)
- Block integrity improvements and fixes (Anuj)
- Add basic support for rust based block drivers. Has a dummy null_blk
variant for now (Andreas)
- Series converting driver settings to queue limits, and cleanups and
fixes related to that (Christoph)
- Cleanup for poking too deeply into the bvec internals, in preparation
for DMA mapping API changes (Christoph)
- Various minor tweaks and fixes (Jiapeng, John, Kanchan, Mikulas,
Ming, Zhu, Damien, Christophe, Chaitanya)
* tag 'for-6.11/block-20240710' of git://git.kernel.dk/linux: (206 commits)
floppy: add missing MODULE_DESCRIPTION() macro
loop: add missing MODULE_DESCRIPTION() macro
ublk_drv: add missing MODULE_DESCRIPTION() macro
xen/blkback: add missing MODULE_DESCRIPTION() macro
block/rnbd: Constify struct kobj_type
block: take offset into account in blk_bvec_map_sg again
block: fix get_max_segment_size() warning
loop: Don't bother validating blocksize
virtio_blk: Don't bother validating blocksize
null_blk: Don't bother validating blocksize
block: Validate logical block size in blk_validate_limits()
virtio_blk: Fix default logical block size fallback
nvmet-auth: fix nvmet_auth hash error handling
nvme: implement ->get_unique_id
block: pass a phys_addr_t to get_max_segment_size
block: add a bvec_phys helper
blk-lib: check for kill signal in ioctl BLKZEROOUT
block: limit the Write Zeroes to manually writing zeroes fallback
block: refacto blkdev_issue_zeroout
block: move read-only and supported checks into (__)blkdev_issue_zeroout
...
|
||
|
Linus Torvalds
|
4f5e249ec0 |
vfs-6.11.iomap
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Merge tag 'vfs-6.11.iomap' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull iomap updates from Christian Brauner:
"This contains some minor work for the iomap subsystem:
- Add documentation on the design of iomap and how to port to it
- Optimize iomap_read_folio()
- Bring back the change to iomap_write_end() to no increase i_size.
This is accompanied by a change to xfs to reserve blocks for
truncating large realtime inodes to avoid exposing stale data when
iomap_write_end() stops increasing i_size"
* tag 'vfs-6.11.iomap' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
iomap: don't increase i_size in iomap_write_end()
xfs: reserve blocks for truncating large realtime inode
Documentation: the design of iomap and how to port
iomap: Optimize iomap_read_folio
|
||
|
Linus Torvalds
|
98f3a9a4fd |
vfs-6.11.pidfs
-----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCZpEHIgAKCRCRxhvAZXjc ovTvAQDvxpq1CIJz4arkf6lkI1VX1PcSfyV1+aIsXkrGF01tfwD+PekJH0xJ7RqU ysuMo1uG3i1OO2xIdrdwCXJDng4QggE= =LtRf -----END PGP SIGNATURE----- Merge tag 'vfs-6.11.pidfs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs Pull pidfs updates from Christian Brauner: "This contains work to make it possible to derive namespace file descriptors from pidfd file descriptors. Right now it is already possible to use a pidfd with setns() to atomically change multiple namespaces at the same time. In other words, it is possible to switch to the namespace context of a process using a pidfd. There is no need to first open namespace file descriptors via procfs. The work included here is an extension of these abilities by allowing to open namespace file descriptors using a pidfd. This means it is now possible to interact with namespaces without ever touching procfs. To this end a new set of ioctls() on pidfds is introduced covering all supported namespace types" * tag 'vfs-6.11.pidfs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: pidfs: allow retrieval of namespace file descriptors nsfs: add open_namespace() nsproxy: add helper to go from arbitrary namespace to ns_common nsproxy: add a cleanup helper for nsproxy file: add take_fd() cleanup helper |
||
|
Linus Torvalds
|
1b074abe88 |
vfs-6.11.nsfs
-----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCZpEHFAAKCRCRxhvAZXjc olb9AQDsA6PLSHsRIVGO3E+syvL+lXC21QdsbAkSgADbqbSC5wEA+nfG2adiWKXc 8CKGMrqXb3j75UfIRIHnM6D03wm0ywo= =ybN0 -----END PGP SIGNATURE----- Merge tag 'vfs-6.11.nsfs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs Pull namespace-fs updates from Christian Brauner: "This adds ioctls allowing to translate PIDs between PID namespaces. The motivating use-case comes from LXCFS which is a tiny fuse filesystem used to virtualize various aspects of procfs. LXCFS is run on the host. The files and directories it creates can be bind-mounted by e.g. a container at startup and mounted over the various procfs files the container wishes to have virtualized. When e.g. a read request for uptime is received, LXCFS will receive the pid of the reader. In order to virtualize the corresponding read, LXCFS needs to know the pid of the init process of the reader's pid namespace. In order to do this, LXCFS first needs to fork() two helper processes. The first helper process setns() to the readers pid namespace. The second helper process is needed to create a process that is a proper member of the pid namespace. The second helper process then creates a ucred message with ucred.pid set to 1 and sends it back to LXCFS. The kernel will translate the ucred.pid field to the corresponding pid number in LXCFS's pid namespace. This way LXCFS can learn the init pid number of the reader's pid namespace and can go on to virtualize. Since these two forks() are costly LXCFS maintains an init pid cache that caches a given pid for a fixed amount of time. The cache is pruned during new read requests. However, even with the cache the hit of the two forks() is singificant when a very large number of containers are running. So this adds a simple set of ioctls that let's a caller translate PIDs from and into a given PID namespace. This significantly improves performance with a very simple change. To protect against races pidfds can be used to check whether the process is still valid" * tag 'vfs-6.11.nsfs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: nsfs: add pid translation ioctls |
||
|
Linus Torvalds
|
f608cabaed |
vfs-6.11.mount
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-----END PGP SIGNATURE-----
Merge tag 'vfs-6.11.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull vfs mount query updates from Christian Brauner:
"This contains work to extend the abilities of listmount() and
statmount() and various fixes and cleanups.
Features:
- Allow iterating through mounts via listmount() from newest to
oldest. This makes it possible for mount(8) to keep iterating the
mount table in reverse order so it gets newest mounts first.
- Relax permissions on listmount() and statmount().
It's not necessary to have capabilities in the initial namespace:
it is sufficient to have capabilities in the owning namespace of
the mount namespace we're located in to list unreachable mounts in
that namespace.
- Extend both listmount() and statmount() to list and stat mounts in
foreign mount namespaces.
Currently the only way to iterate over mount entries in mount
namespaces that aren't in the caller's mount namespace is by
crawling through /proc in order to find /proc/<pid>/mountinfo for
the relevant mount namespace.
This is both very clumsy and hugely inefficient. So extend struct
mnt_id_req with a new member that allows to specify the mount
namespace id of the mount namespace we want to look at.
Luckily internally we already have most of the infrastructure for
this so we just need to expose it to userspace. Give userspace a
way to retrieve the id of a mount namespace via statmount() and
through a new nsfs ioctl() on mount namespace file descriptor.
This comes with appropriate selftests.
- Expose mount options through statmount().
Currently if userspace wants to get mount options for a mount and
with statmount(), they still have to open /proc/<pid>/mountinfo to
parse mount options. Simply the information through statmount()
directly.
Afterwards it's possible to only rely on statmount() and
listmount() to retrieve all and more information than
/proc/<pid>/mountinfo provides.
This comes with appropriate selftests.
Fixes:
- Avoid copying to userspace under the namespace semaphore in
listmount.
Cleanups:
- Simplify the error handling in listmount by relying on our newly
added cleanup infrastructure.
- Refuse invalid mount ids early for both listmount and statmount"
* tag 'vfs-6.11.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
fs: reject invalid last mount id early
fs: refuse mnt id requests with invalid ids early
fs: find rootfs mount of the mount namespace
fs: only copy to userspace on success in listmount()
sefltests: extend the statmount test for mount options
fs: use guard for namespace_sem in statmount()
fs: export mount options via statmount()
fs: rename show_mnt_opts -> show_vfsmnt_opts
selftests: add a test for the foreign mnt ns extensions
fs: add an ioctl to get the mnt ns id from nsfs
fs: Allow statmount() in foreign mount namespace
fs: Allow listmount() in foreign mount namespace
fs: export the mount ns id via statmount
fs: keep an index of current mount namespaces
fs: relax permissions for statmount()
listmount: allow listing in reverse order
fs: relax permissions for listmount()
fs: simplify error handling
fs: don't copy to userspace under namespace semaphore
path: add cleanup helper
|
||
|
Linus Torvalds
|
2aae1d67fd |
vfs-6.11.inode
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Merge tag 'vfs-6.11.inode' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull vfs inode / dentry updates from Christian Brauner:
"This contains smaller performance improvements to inodes and dentries:
inode:
- Add rcu based inode lookup variants.
They avoid one inode hash lock acquire in the common case thereby
significantly reducing contention. We already support RCU-based
operations but didn't take advantage of them during inode
insertion.
Callers of iget_locked() get the improvement without any code
changes. Callers that need a custom callback can switch to
iget5_locked_rcu() as e.g., did btrfs.
With 20 threads each walking a dedicated 1000 dirs * 1000 files
directory tree to stat(2) on a 32 core + 24GB ram vm:
before: 3.54s user 892.30s system 1966% cpu 45.549 total
after: 3.28s user 738.66s system 1955% cpu 37.932 total (-16.7%)
Long-term we should pick up the effort to introduce more
fine-grained locking and possibly improve on the currently used
hash implementation.
- Start zeroing i_state in inode_init_always() instead of doing it in
individual filesystems.
This allows us to remove an unneeded lock acquire in new_inode()
and not burden individual filesystems with this.
dcache:
- Move d_lockref out of the area used by RCU lookup to avoid
cacheline ping poing because the embedded name is sharing a
cacheline with d_lockref.
- Fix dentry size on 32bit with CONFIG_SMP=y so it does actually end
up with 128 bytes in total"
* tag 'vfs-6.11.inode' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
fs: fix dentry size
vfs: move d_lockref out of the area used by RCU lookup
bcachefs: remove now spurious i_state initialization
xfs: remove now spurious i_state initialization in xfs_inode_alloc
vfs: partially sanitize i_state zeroing on inode creation
xfs: preserve i_state around inode_init_always in xfs_reinit_inode
btrfs: use iget5_locked_rcu
vfs: add rcu-based find_inode variants for iget ops
|
||
|
Linus Torvalds
|
b8fc1bd73a |
vfs-6.11.mount.api
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Merge tag 'vfs-6.11.mount.api' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull vfs mount API updates from Christian Brauner:
- Add a generic helper to parse uid and gid mount options.
Currently we open-code the same logic in various filesystems which is
error prone, especially since the verification of uid and gid mount
options is a sensitive operation in the face of idmappings.
Add a generic helper and convert all filesystems over to it. Make
sure that filesystems that are mountable in unprivileged containers
verify that the specified uid and gid can be represented in the
owning namespace of the filesystem.
- Convert hostfs to the new mount api.
* tag 'vfs-6.11.mount.api' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
fuse: Convert to new uid/gid option parsing helpers
fuse: verify {g,u}id mount options correctly
fat: Convert to new uid/gid option parsing helpers
fat: Convert to new mount api
fat: move debug into fat_mount_options
vboxsf: Convert to new uid/gid option parsing helpers
tracefs: Convert to new uid/gid option parsing helpers
smb: client: Convert to new uid/gid option parsing helpers
tmpfs: Convert to new uid/gid option parsing helpers
ntfs3: Convert to new uid/gid option parsing helpers
isofs: Convert to new uid/gid option parsing helpers
hugetlbfs: Convert to new uid/gid option parsing helpers
ext4: Convert to new uid/gid option parsing helpers
exfat: Convert to new uid/gid option parsing helpers
efivarfs: Convert to new uid/gid option parsing helpers
debugfs: Convert to new uid/gid option parsing helpers
autofs: Convert to new uid/gid option parsing helpers
fs_parse: add uid & gid option option parsing helpers
hostfs: Add const qualifier to host_root in hostfs_fill_super()
hostfs: convert hostfs to use the new mount API
|
||
|
Linus Torvalds
|
4a051e4c21 |
vfs-6.11.casefold
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Merge tag 'vfs-6.11.casefold' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull vfs casefolding updates from Christian Brauner:
"This contains some work to simplify the handling of casefolded names:
- Simplify the handling of casefolded names in f2fs and ext4 by
keeping the names as a qstr to avoiding unnecessary conversions
- Introduce a new generic_ci_match() libfs case-insensitive lookup
helper and use it in both f2fs and ext4 allowing to remove the
filesystem specific implementations
- Remove a bunch of ifdefs by making the unicode build checks part of
the code flow"
* tag 'vfs-6.11.casefold' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
f2fs: Move CONFIG_UNICODE defguards into the code flow
ext4: Move CONFIG_UNICODE defguards into the code flow
f2fs: Reuse generic_ci_match for ci comparisons
ext4: Reuse generic_ci_match for ci comparisons
libfs: Introduce case-insensitive string comparison helper
f2fs: Simplify the handling of cached casefolded names
ext4: Simplify the handling of cached casefolded names
|
||
|
Linus Torvalds
|
7d156879ff |
vfs-6.11.module.description
-----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCZpEGNgAKCRCRxhvAZXjc oricAP4+iiqgdZvmVmdqJ5TnMDFAyCKHs5FkaLB8OFbZKVrv9wD+JD3sie8kH6uh j6GdB+s1bpDbB1D0CmXfCrsPT4NhPgQ= =PCvo -----END PGP SIGNATURE----- Merge tag 'vfs-6.11.module.description' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs Pull vfs module description updates from Christian Brauner: "This contains patches to add module descriptions to all modules under fs/ currently lacking them" * tag 'vfs-6.11.module.description' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: openpromfs: add missing MODULE_DESCRIPTION() macro fs: nls: add missing MODULE_DESCRIPTION() macros fs: autofs: add MODULE_DESCRIPTION() fs: fat: add missing MODULE_DESCRIPTION() macros fs: binfmt: add missing MODULE_DESCRIPTION() macros fs: cramfs: add MODULE_DESCRIPTION() fs: hfs: add MODULE_DESCRIPTION() fs: hpfs: add MODULE_DESCRIPTION() qnx4: add MODULE_DESCRIPTION() qnx6: add MODULE_DESCRIPTION() fs: sysv: add MODULE_DESCRIPTION() fs: efs: add MODULE_DESCRIPTION() fs: minix: add MODULE_DESCRIPTION() |
||
|
Linus Torvalds
|
aff31330e0 |
vfs-6.11.pg_error
-----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCZpEGSgAKCRCRxhvAZXjc opvwAQCBfq5sxn/P34MNheHAVJOkQlozaflLIRM/CRN60HXV3AEAiph0RJBszvDu VhJ9VZ21zypvpS34enBfPKp1ZmyHPwI= =hNqR -----END PGP SIGNATURE----- Merge tag 'vfs-6.11.pg_error' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs Pull PG_error removal updates from Christian Brauner: "This contains work to remove almost all remaining users of PG_error from filesystems and filesystem helper libraries. An additional patch will be coming in via the jfs tree which tests the PG_error bit. Afterwards nothing will be testing it anymore and it's safe to remove all places which set or clear the PG_error bit. The goal is to fully remove PG_error by the next merge window" * tag 'vfs-6.11.pg_error' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: buffer: Remove calls to set and clear the folio error flag iomap: Remove calls to set and clear folio error flag vboxsf: Convert vboxsf_read_folio() to use a folio ufs: Remove call to set the folio error flag romfs: Convert romfs_read_folio() to use a folio reiserfs: Remove call to folio_set_error() orangefs: Remove calls to set/clear the error flag nfs: Remove calls to folio_set_error jffs2: Remove calls to set/clear the folio error flag hostfs: Convert hostfs_read_folio() to use a folio isofs: Convert rock_ridge_symlink_read_folio to use a folio hpfs: Convert hpfs_symlink_read_folio to use a folio efs: Convert efs_symlink_read_folio to use a folio cramfs: Convert cramfs_read_folio to use a folio coda: Convert coda_symlink_filler() to use folio_end_read() befs: Convert befs_symlink_read_folio() to use folio_end_read() |
||
|
Linus Torvalds
|
b051320d6a |
vfs-6.11.misc
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Merge tag 'vfs-6.11.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull misc vfs updates from Christian Brauner:
"Features:
- Support passing NULL along AT_EMPTY_PATH for statx().
NULL paths with any flag value other than AT_EMPTY_PATH go the
usual route and end up with -EFAULT to retain compatibility (Rust
is abusing calls of the sort to detect availability of statx)
This avoids path lookup code, lockref management, memory allocation
and in case of NULL path userspace memory access (which can be
quite expensive with SMAP on x86_64)
- Don't block i_writecount during exec. Remove the
deny_write_access() mechanism for executables
- Relax open_by_handle_at() permissions in specific cases where we
can prove that the caller had sufficient privileges to open a file
- Switch timespec64 fields in struct inode to discrete integers
freeing up 4 bytes
Fixes:
- Fix false positive circular locking warning in hfsplus
- Initialize hfs_inode_info after hfs_alloc_inode() in hfs
- Avoid accidental overflows in vfs_fallocate()
- Don't interrupt fallocate with EINTR in tmpfs to avoid constantly
restarting shmem_fallocate()
- Add missing quote in comment in fs/readdir
Cleanups:
- Don't assign and test in an if statement in mqueue. Move the
assignment out of the if statement
- Reflow the logic in may_create_in_sticky()
- Remove the usage of the deprecated ida_simple_xx() API from procfs
- Reject FSCONFIG_CMD_CREATE_EXCL requets that depend on the new
mount api early
- Rename variables in copy_tree() to make it easier to understand
- Replace WARN(down_read_trylock, ...) abuse with proper asserts in
various places in the VFS
- Get rid of user_path_at_empty() and drop the empty argument from
getname_flags()
- Check for error while copying and no path in one branch in
getname_flags()
- Avoid redundant smp_mb() for THP handling in do_dentry_open()
- Rename parent_ino to d_parent_ino and make it use RCU
- Remove unused header include in fs/readdir
- Export in_group_capable() helper and switch f2fs and fuse over to
it instead of open-coding the logic in both places"
* tag 'vfs-6.11.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: (27 commits)
ipc: mqueue: remove assignment from IS_ERR argument
vfs: rename parent_ino to d_parent_ino and make it use RCU
vfs: support statx(..., NULL, AT_EMPTY_PATH, ...)
stat: use vfs_empty_path() helper
fs: new helper vfs_empty_path()
fs: reflow may_create_in_sticky()
vfs: remove redundant smp_mb for thp handling in do_dentry_open
fuse: Use in_group_or_capable() helper
f2fs: Use in_group_or_capable() helper
fs: Export in_group_or_capable()
vfs: reorder checks in may_create_in_sticky
hfs: fix to initialize fields of hfs_inode_info after hfs_alloc_inode()
proc: Remove usage of the deprecated ida_simple_xx() API
hfsplus: fix to avoid false alarm of circular locking
Improve readability of copy_tree
vfs: shave a branch in getname_flags
vfs: retire user_path_at_empty and drop empty arg from getname_flags
vfs: stop using user_path_at_empty in do_readlinkat
tmpfs: don't interrupt fallocate with EINTR
fs: don't block i_writecount during exec
...
|
||
|
Linus Torvalds
|
5e04975536 |
Merge branch 'link_path_walk'
This is the last - for now - of the "look, we generated some questionable code for basic pathname lookup operations" set of branches. This is mainly just re-organizing the name hashing code in link_path_walk(), mostly by improving the calling conventions to the inlined helper functions and moving some of the code around to allow for more straightforward code generation. The profiles - and the generated code - look much more palatable to me now. * link_path_walk: vfs: link_path_walk: move more of the name hashing into hash_name() vfs: link_path_walk: improve may_lookup() code generation vfs: link_path_walk: do '.' and '..' detection while hashing vfs: link_path_walk: clarify and improve name hashing interface vfs: link_path_walk: simplify name hash flow |
||
|
Linus Torvalds
|
a5819099f6 |
Merge branch 'runtime-constants'
Merge runtime constants infrastructure with implementations for x86 and
arm64.
This is one of four branches that came out of me looking at profiles of
my kernel build filesystem load on my 128-core Altra arm64 system, where
pathname walking and the user copies (particularly strncpy_from_user()
for fetching the pathname from user space) is very hot.
This is a very specialized "instruction alternatives" model where the
dentry hash pointer and hash count will be constants for the lifetime of
the kernel, but the allocation are not static but done early during the
kernel boot. In order to avoid the pointer load and dynamic shift, we
just rewrite the constants in the instructions in place.
We can't use the "generic" alternative instructions infrastructure,
because different architectures do it very differently, and it's
actually simpler to just have very specific helpers, with a fallback to
the generic ("old") model of just using variables for architectures that
do not implement the runtime constant patching infrastructure.
Link: https://lore.kernel.org/all/CAHk-=widPe38fUNjUOmX11ByDckaeEo9tN4Eiyke9u1SAtu9sA@mail.gmail.com/
* runtime-constants:
arm64: add 'runtime constant' support
runtime constants: add x86 architecture support
runtime constants: add default dummy infrastructure
vfs: dcache: move hashlen_hash() from callers into d_hash()
|
||
Sungjong Seo
|
89fc548767 |
exfat: fix potential deadlock on __exfat_get_dentry_set
When accessing a file with more entries than ES_MAX_ENTRY_NUM, the bh-array
is allocated in __exfat_get_entry_set. The problem is that the bh-array is
allocated with GFP_KERNEL. It does not make sense. In the following cases,
a deadlock for sbi->s_lock between the two processes may occur.
CPU0 CPU1
---- ----
kswapd
balance_pgdat
lock(fs_reclaim)
exfat_iterate
lock(&sbi->s_lock)
exfat_readdir
exfat_get_uniname_from_ext_entry
exfat_get_dentry_set
__exfat_get_dentry_set
kmalloc_array
...
lock(fs_reclaim)
...
evict
exfat_evict_inode
lock(&sbi->s_lock)
To fix this, let's allocate bh-array with GFP_NOFS.
Fixes:
|
||
Michael Jeanson
|
224821766f |
exfat: handle idmapped mounts
Pass the idmapped mount information to the different helper
functions. Adapt the uid/gid checks in exfat_setattr to use the
vfsuid/vfsgid helpers.
Based on the fat implementation in commit
|
||
Kees Cook
|
21f9310830 |
exec: Avoid pathological argc, envc, and bprm->p values
Make sure nothing goes wrong with the string counters or the bprm's belief about the stack pointer. Add checks and matching self-tests. Take special care for !CONFIG_MMU, since argmin is not exposed there. For 32-bit validation, 32-bit UML was used: $ tools/testing/kunit/kunit.py run \ --make_options CROSS_COMPILE=i686-linux-gnu- \ --make_options SUBARCH=i386 \ exec For !MMU validation, m68k was used: $ tools/testing/kunit/kunit.py run \ --arch m68k --make_option CROSS_COMPILE=m68k-linux-gnu- \ exec Link: https://lore.kernel.org/r/20240520021615.741800-2-keescook@chromium.org Link: https://lore.kernel.org/r/20240621205046.4001362-2-kees@kernel.org Signed-off-by: Kees Cook <kees@kernel.org> |
||
|
Kees Cook
|
084ebf7ca8 |
execve: Keep bprm->argmin behind CONFIG_MMU
When argmin was added in commit
|
||
|
Linus Torvalds
|
d0d0cd3800 |
small fix, also for stable
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||
Steve French
|
d2346e2836 |
cifs: fix setting SecurityFlags to true
If you try to set /proc/fs/cifs/SecurityFlags to 1 it will set them to CIFSSEC_MUST_NTLMV2 which no longer is relevant (the less secure ones like lanman have been removed from cifs.ko) and is also missing some flags (like for signing and encryption) and can even cause mount to fail, so change this to set it to Kerberos in this case. Also change the description of the SecurityFlags to remove mention of flags which are no longer supported. Cc: stable@vger.kernel.org Reviewed-by: Shyam Prasad N <sprasad@microsoft.com> Signed-off-by: Steve French <stfrench@microsoft.com> |
||
Jakub Kicinski
|
e5abd12f3d |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR. Conflicts: drivers/net/ethernet/broadcom/bnxt/bnxt.c |
||
Dan Carpenter
|
a3c10bed33 |
erofs: silence uninitialized variable warning in z_erofs_scan_folio()
Smatch complains that:
fs/erofs/zdata.c:1047 z_erofs_scan_folio()
error: uninitialized symbol 'err'.
The issue is if we hit this (!(map->m_flags & EROFS_MAP_MAPPED)) {
condition then "err" isn't set. It's inside a loop so we would have to
hit that condition on every iteration. Initialize "err" to zero to
solve this.
Fixes:
|
||
|
Linus Torvalds
|
975f3b6da1 |
for-6.10-rc7-tag
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Merge tag 'for-6.10-rc7-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs fixes from David Sterba:
"Fix a regression in extent map shrinker behaviour.
In the past weeks we got reports from users that there are huge
latency spikes or freezes. This was bisected to newly added shrinker
of extent maps (it was added to fix a build up of the structures in
memory).
I'm assuming that the freezes would happen to many users after release
so I'd like to get it merged now so it's in 6.10. Although the diff
size is not small the changes are relatively straightforward, the
reporters verified the fixes and we did testing on our side.
The fixes:
- adjust behaviour under memory pressure and check lock or scheduling
conditions, bail out if needed
- synchronize tracking of the scanning progress so inode ranges are
not skipped or work duplicated
- do a delayed iput when scanning a root so evicting an inode does
not slow things down in case of lots of dirty data, also fix
lockdep warning, a deadlock could happen when writing the dirty
data would need to start a transaction"
* tag 'for-6.10-rc7-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
btrfs: avoid races when tracking progress for extent map shrinking
btrfs: stop extent map shrinker if reschedule is needed
btrfs: use delayed iput during extent map shrinking
|
||
Jeff Layton
|
769d20028f |
nfsd: nfsd_file_lease_notifier_call gets a file_lease as an argument
"data" actually refers to a file_lease and not a file_lock. Both structs
have their file_lock_core as the first field though, so this bug should
be harmless without struct randomization in play.
Reported-by: Florian Evers <florian-evers@gmx.de>
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=219008
Fixes:
|
||
|
Linus Torvalds
|
5d4c85134b |
bcachefs fixes for 6.10-rc8, more
- revert the SLAB_ACCOUNT patch, something crazy is going on in memcg and someone forgot to test - minor fixes: missing rcu_read_lock(), scheduling while atomic (in an emergency shutdown path) - two lockdep fixes; these could have gone earlier, but were left to bake awhile -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEKnAFLkS8Qha+jvQrE6szbY3KbnYFAmaRRssACgkQE6szbY3K bnZpVw/+KBili018zGFIZjaYg89tNjyPhfdjtTSnTBm+989Naw4GjdF8nR81sVfC LPW3hbUE/uZ9d9++kmwWXe+c6QrCk8skbc9z/6Bs7LAeidranZWmLNg157TfqOkF utWhXb8oo4X0wivb6V+slnk7G4fU+p+uYfd68BFMGhNMX62ldjkVqKwpaT2bsQ03 5igS8b2ss90Q+XLkpzHNDYl/yq8kFxUbaeDc4IKFV0aN5pq93pBOGDtZCi1dHeN+ O9rHYyXoSd26+C/gjCscD/ZIfmEq7IgWRZP/2157fbVzSx9VzWZtb2FIuVf0cx/F z01+M8fZctJVAIFijvG33P5KwAiwyDzGZMN5S/U4CICvMXu/iwJrAPUOjJoII8Dl 09ex4X0cZZjvFsA+dDMfd2Vc8U6dgpo4+7j3/rZkH/9REJypnhv/o+89Dl+Lx9P6 UdQsqphQjz0ud4Qd5TOT+x/7n8JFlRLnzeIXf8U1qKKlkKCuhxBnDEtVUc/s7gBc 8ekLQSHgpy14fCpq0wgOYx4OFQrY4KQ+Ocpt3i9RdzX1+Nti4v1REgVvBmi4UHra 5itcQFGMEq0xQ0H9eZcwqqoUHuQuzCtaP12CbECHDjWfZDWKDaYHkG2jo0SK6P9e 8ISZakmdWsu0sqP4nuexKvcb4K1ov0JtidMlGOeB3KYrQ7LHQjA= =vpux -----END PGP SIGNATURE----- Merge tag 'bcachefs-2024-07-12' of https://evilpiepirate.org/git/bcachefs Pull more bcachefs fixes from Kent Overstreet: - revert the SLAB_ACCOUNT patch, something crazy is going on in memcg and someone forgot to test - minor fixes: missing rcu_read_lock(), scheduling while atomic (in an emergency shutdown path) - two lockdep fixes; these could have gone earlier, but were left to bake awhile * tag 'bcachefs-2024-07-12' of https://evilpiepirate.org/git/bcachefs: bcachefs: bch2_gc_btree() should not use btree_root_lock bcachefs: Set PF_MEMALLOC_NOFS when trans->locked bcachefs; Use trans_unlock_long() when waiting on allocator Revert "bcachefs: Mark bch_inode_info as SLAB_ACCOUNT" bcachefs: fix scheduling while atomic in break_cycle() bcachefs: Fix RCU splat |
||
Kent Overstreet
|
1841027c7d |
bcachefs: bch2_gc_btree() should not use btree_root_lock
btree_root_lock is for the root keys in btree_root, not the pointers to the nodes themselves; this fixes a lock ordering issue between btree_root_lock and btree node locks. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev> |
||
|
Kent Overstreet
|
f236ea4bca |
bcachefs: Set PF_MEMALLOC_NOFS when trans->locked
proper lock ordering is: fs_reclaim -> btree node locks Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev> |
||
|
Kent Overstreet
|
f0f3e51148 |
bcachefs; Use trans_unlock_long() when waiting on allocator
not using unlock_long() blocks key cache reclaim, and the allocator may take awhile Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev> |
||
|
Kent Overstreet
|
aacd897d4d |
Revert "bcachefs: Mark bch_inode_info as SLAB_ACCOUNT"
This reverts commit
|
||
|
Jakub Kicinski
|
7c8267275d |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR. Conflicts: net/sched/act_ct.c |
||
|
Linus Torvalds
|
83ab4b461e |
vfs-6.10-rc8.fixes
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Merge tag 'vfs-6.10-rc8.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull vfs fixes from Christian Brauner:
"cachefiles:
- Export an existing and add a new cachefile helper to be used in
filesystems to fix reference count bugs
- Use the newly added fscache_ty_get_volume() helper to get a
reference count on an fscache_volume to handle volumes that are
about to be removed cleanly
- After withdrawing a fscache_cache via FSCACHE_CACHE_IS_WITHDRAWN
wait for all ongoing cookie lookups to complete and for the object
count to reach zero
- Propagate errors from vfs_getxattr() to avoid an infinite loop in
cachefiles_check_volume_xattr() because it keeps seeing ESTALE
- Don't send new requests when an object is dropped by raising
CACHEFILES_ONDEMAND_OJBSTATE_DROPPING
- Cancel all requests for an object that is about to be dropped
- Wait for the ondemand_boject_worker to finish before dropping a
cachefiles object to prevent use-after-free
- Use cyclic allocation for message ids to better handle id recycling
- Add missing lock protection when iterating through the xarray when
polling
netfs:
- Use standard logging helpers for debug logging
VFS:
- Fix potential use-after-free in file locks during
trace_posix_lock_inode(). The tracepoint could fire while another
task raced it and freed the lock that was requested to be traced
- Only increment the nr_dentry_negative counter for dentries that are
present on the superblock LRU. Currently, DCACHE_LRU_LIST list is
used to detect this case. However, the flag is also raised in
combination with DCACHE_SHRINK_LIST to indicate that dentry->d_lru
is used. So checking only DCACHE_LRU_LIST will lead to wrong
nr_dentry_negative count. Fix the check to not count dentries that
are on a shrink related list
Misc:
- hfsplus: fix an uninitialized value issue in copy_name
- minix: fix minixfs_rename with HIGHMEM. It still uses kunmap() even
though we switched it to kmap_local_page() a while ago"
* tag 'vfs-6.10-rc8.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
minixfs: Fix minixfs_rename with HIGHMEM
hfsplus: fix uninit-value in copy_name
vfs: don't mod negative dentry count when on shrinker list
filelock: fix potential use-after-free in posix_lock_inode
cachefiles: add missing lock protection when polling
cachefiles: cyclic allocation of msg_id to avoid reuse
cachefiles: wait for ondemand_object_worker to finish when dropping object
cachefiles: cancel all requests for the object that is being dropped
cachefiles: stop sending new request when dropping object
cachefiles: propagate errors from vfs_getxattr() to avoid infinite loop
cachefiles: fix slab-use-after-free in cachefiles_withdraw_cookie()
cachefiles: fix slab-use-after-free in fscache_withdraw_volume()
netfs, fscache: export fscache_put_volume() and add fscache_try_get_volume()
netfs: Switch debug logging to pr_debug()
|
||
Filipe Manana
|
4484940514 |
btrfs: avoid races when tracking progress for extent map shrinking
We store the progress (root and inode numbers) of the extent map shrinker in fs_info without any synchronization but we can have multiple tasks calling into the shrinker during memory allocations when there's enough memory pressure for example. This can result in a task A reading fs_info->extent_map_shrinker_last_ino after another task B updates it, and task A reading fs_info->extent_map_shrinker_last_root before task B updates it, making task A see an odd state that isn't necessarily harmful but may make it skip certain inode ranges or do more work than necessary by going over the same inodes again. These unprotected accesses would also trigger warnings from tools like KCSAN. So add a lock to protect access to these progress fields. Reviewed-by: Josef Bacik <josef@toxicpanda.com> Signed-off-by: Filipe Manana <fdmanana@suse.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com> |
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Filipe Manana
|
b3ebb9b7e9 |
btrfs: stop extent map shrinker if reschedule is needed
The extent map shrinker can be called in a variety of contexts where we are under memory pressure, and of them is when a task is trying to allocate memory. For this reason the shrinker is typically called with a value of struct shrink_control::nr_to_scan that is much smaller than what we return in the nr_cached_objects callback of struct super_operations (fs/btrfs/super.c:btrfs_nr_cached_objects()), so that the shrinker does not take a long time and cause high latencies. However we can still take a lot of time in the shrinker even for a limited amount of nr_to_scan: 1) When traversing the red black tree that tracks open inodes in a root, as for example with millions of open inodes we get a deep tree which takes time searching for an inode; 2) Iterating over the extent map tree, which is a red black tree, of an inode when doing the rb_next() calls and when removing an extent map from the tree, since often that requires rebalancing the red black tree; 3) When trying to write lock an inode's extent map tree we may wait for a significant amount of time, because there's either another task about to do IO and searching for an extent map in the tree or inserting an extent map in the tree, and we can have thousands or even millions of extent maps for an inode. Furthermore, there can be concurrent calls to the shrinker so the lock might be busy simply because there is already another task shrinking extent maps for the same inode; 4) We often reschedule if we need to, which further increases latency. So improve on this by stopping the extent map shrinking code whenever we need to reschedule and make it skip an inode if we can't immediately lock its extent map tree. Reported-by: Mikhail Gavrilov <mikhail.v.gavrilov@gmail.com> Reported-by: Andrea Gelmini <andrea.gelmini@gmail.com> Link: https://lore.kernel.org/linux-btrfs/CABXGCsMmmb36ym8hVNGTiU8yfUS_cGvoUmGCcBrGWq9OxTrs+A@mail.gmail.com/ Reviewed-by: Josef Bacik <josef@toxicpanda.com> Signed-off-by: Filipe Manana <fdmanana@suse.com> Signed-off-by: David Sterba <dsterba@suse.com> |
||
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Filipe Manana
|
68a3ebd18b |
btrfs: use delayed iput during extent map shrinking
When putting an inode during extent map shrinking we're doing a standard
iput() but that may take a long time in case the inode is dirty and we are
doing the final iput that triggers eviction - the VFS will have to wait
for writeback before calling the btrfs evict callback (see
fs/inode.c:evict()).
This slows down the task running the shrinker which may have been
triggered while updating some tree for example, meaning locks are held
as well as an open transaction handle.
Also if the iput() ends up triggering eviction and the inode has no links
anymore, then we trigger item truncation which requires flushing delayed
items, space reservation to start a transaction and that may trigger the
space reclaim task and wait for it, resulting in deadlocks in case the
reclaim task needs for example to commit a transaction and the shrinker
is being triggered from a path holding a transaction handle.
Syzbot reported such a case with the following stack traces:
======================================================
WARNING: possible circular locking dependency detected
6.10.0-rc2-syzkaller-00010-g2ab795141095 #0 Not tainted
------------------------------------------------------
kswapd0/111 is trying to acquire lock:
ffff88801eae4610 (sb_internal#3){.+.+}-{0:0}, at: btrfs_commit_inode_delayed_inode+0x110/0x330 fs/btrfs/delayed-inode.c:1275
but task is already holding lock:
ffffffff8dd3a9a0 (fs_reclaim){+.+.}-{0:0}, at: balance_pgdat+0xa88/0x1970 mm/vmscan.c:6924
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #3 (fs_reclaim){+.+.}-{0:0}:
__fs_reclaim_acquire mm/page_alloc.c:3783 [inline]
fs_reclaim_acquire+0x102/0x160 mm/page_alloc.c:3797
might_alloc include/linux/sched/mm.h:334 [inline]
slab_pre_alloc_hook mm/slub.c:3890 [inline]
slab_alloc_node mm/slub.c:3980 [inline]
kmem_cache_alloc_lru_noprof+0x58/0x2f0 mm/slub.c:4019
btrfs_alloc_inode+0x118/0xb20 fs/btrfs/inode.c:8411
alloc_inode+0x5d/0x230 fs/inode.c:261
iget5_locked fs/inode.c:1235 [inline]
iget5_locked+0x1c9/0x2c0 fs/inode.c:1228
btrfs_iget_locked fs/btrfs/inode.c:5590 [inline]
btrfs_iget_path fs/btrfs/inode.c:5607 [inline]
btrfs_iget+0xfb/0x230 fs/btrfs/inode.c:5636
create_reloc_inode+0x403/0x820 fs/btrfs/relocation.c:3911
btrfs_relocate_block_group+0x471/0xe60 fs/btrfs/relocation.c:4114
btrfs_relocate_chunk+0x143/0x450 fs/btrfs/volumes.c:3373
__btrfs_balance fs/btrfs/volumes.c:4157 [inline]
btrfs_balance+0x211a/0x3f00 fs/btrfs/volumes.c:4534
btrfs_ioctl_balance fs/btrfs/ioctl.c:3675 [inline]
btrfs_ioctl+0x12ed/0x8290 fs/btrfs/ioctl.c:4742
__do_compat_sys_ioctl+0x2c3/0x330 fs/ioctl.c:1007
do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline]
__do_fast_syscall_32+0x73/0x120 arch/x86/entry/common.c:386
do_fast_syscall_32+0x32/0x80 arch/x86/entry/common.c:411
entry_SYSENTER_compat_after_hwframe+0x84/0x8e
-> #2 (btrfs_trans_num_extwriters){++++}-{0:0}:
join_transaction+0x164/0xf40 fs/btrfs/transaction.c:315
start_transaction+0x427/0x1a70 fs/btrfs/transaction.c:700
btrfs_rebuild_free_space_tree+0xaa/0x480 fs/btrfs/free-space-tree.c:1323
btrfs_start_pre_rw_mount+0x218/0xf60 fs/btrfs/disk-io.c:2999
open_ctree+0x41ab/0x52e0 fs/btrfs/disk-io.c:3554
btrfs_fill_super fs/btrfs/super.c:946 [inline]
btrfs_get_tree_super fs/btrfs/super.c:1863 [inline]
btrfs_get_tree+0x11e9/0x1b90 fs/btrfs/super.c:2089
vfs_get_tree+0x8f/0x380 fs/super.c:1780
fc_mount+0x16/0xc0 fs/namespace.c:1125
btrfs_get_tree_subvol fs/btrfs/super.c:2052 [inline]
btrfs_get_tree+0xa53/0x1b90 fs/btrfs/super.c:2090
vfs_get_tree+0x8f/0x380 fs/super.c:1780
do_new_mount fs/namespace.c:3352 [inline]
path_mount+0x6e1/0x1f10 fs/namespace.c:3679
do_mount fs/namespace.c:3692 [inline]
__do_sys_mount fs/namespace.c:3898 [inline]
__se_sys_mount fs/namespace.c:3875 [inline]
__ia32_sys_mount+0x295/0x320 fs/namespace.c:3875
do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline]
__do_fast_syscall_32+0x73/0x120 arch/x86/entry/common.c:386
do_fast_syscall_32+0x32/0x80 arch/x86/entry/common.c:411
entry_SYSENTER_compat_after_hwframe+0x84/0x8e
-> #1 (btrfs_trans_num_writers){++++}-{0:0}:
join_transaction+0x148/0xf40 fs/btrfs/transaction.c:314
start_transaction+0x427/0x1a70 fs/btrfs/transaction.c:700
btrfs_rebuild_free_space_tree+0xaa/0x480 fs/btrfs/free-space-tree.c:1323
btrfs_start_pre_rw_mount+0x218/0xf60 fs/btrfs/disk-io.c:2999
open_ctree+0x41ab/0x52e0 fs/btrfs/disk-io.c:3554
btrfs_fill_super fs/btrfs/super.c:946 [inline]
btrfs_get_tree_super fs/btrfs/super.c:1863 [inline]
btrfs_get_tree+0x11e9/0x1b90 fs/btrfs/super.c:2089
vfs_get_tree+0x8f/0x380 fs/super.c:1780
fc_mount+0x16/0xc0 fs/namespace.c:1125
btrfs_get_tree_subvol fs/btrfs/super.c:2052 [inline]
btrfs_get_tree+0xa53/0x1b90 fs/btrfs/super.c:2090
vfs_get_tree+0x8f/0x380 fs/super.c:1780
do_new_mount fs/namespace.c:3352 [inline]
path_mount+0x6e1/0x1f10 fs/namespace.c:3679
do_mount fs/namespace.c:3692 [inline]
__do_sys_mount fs/namespace.c:3898 [inline]
__se_sys_mount fs/namespace.c:3875 [inline]
__ia32_sys_mount+0x295/0x320 fs/namespace.c:3875
do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline]
__do_fast_syscall_32+0x73/0x120 arch/x86/entry/common.c:386
do_fast_syscall_32+0x32/0x80 arch/x86/entry/common.c:411
entry_SYSENTER_compat_after_hwframe+0x84/0x8e
-> #0 (sb_internal#3){.+.+}-{0:0}:
check_prev_add kernel/locking/lockdep.c:3134 [inline]
check_prevs_add kernel/locking/lockdep.c:3253 [inline]
validate_chain kernel/locking/lockdep.c:3869 [inline]
__lock_acquire+0x2478/0x3b30 kernel/locking/lockdep.c:5137
lock_acquire kernel/locking/lockdep.c:5754 [inline]
lock_acquire+0x1b1/0x560 kernel/locking/lockdep.c:5719
percpu_down_read include/linux/percpu-rwsem.h:51 [inline]
__sb_start_write include/linux/fs.h:1655 [inline]
sb_start_intwrite include/linux/fs.h:1838 [inline]
start_transaction+0xbc1/0x1a70 fs/btrfs/transaction.c:694
btrfs_commit_inode_delayed_inode+0x110/0x330 fs/btrfs/delayed-inode.c:1275
btrfs_evict_inode+0x960/0xe80 fs/btrfs/inode.c:5291
evict+0x2ed/0x6c0 fs/inode.c:667
iput_final fs/inode.c:1741 [inline]
iput.part.0+0x5a8/0x7f0 fs/inode.c:1767
iput+0x5c/0x80 fs/inode.c:1757
btrfs_scan_root fs/btrfs/extent_map.c:1118 [inline]
btrfs_free_extent_maps+0xbd3/0x1320 fs/btrfs/extent_map.c:1189
super_cache_scan+0x409/0x550 fs/super.c:227
do_shrink_slab+0x44f/0x11c0 mm/shrinker.c:435
shrink_slab+0x18a/0x1310 mm/shrinker.c:662
shrink_one+0x493/0x7c0 mm/vmscan.c:4790
shrink_many mm/vmscan.c:4851 [inline]
lru_gen_shrink_node+0x89f/0x1750 mm/vmscan.c:4951
shrink_node mm/vmscan.c:5910 [inline]
kswapd_shrink_node mm/vmscan.c:6720 [inline]
balance_pgdat+0x1105/0x1970 mm/vmscan.c:6911
kswapd+0x5ea/0xbf0 mm/vmscan.c:7180
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
other info that might help us debug this:
Chain exists of:
sb_internal#3 --> btrfs_trans_num_extwriters --> fs_reclaim
Possible unsafe locking scenario:
CPU0 CPU1
---- ----
lock(fs_reclaim);
lock(btrfs_trans_num_extwriters);
lock(fs_reclaim);
rlock(sb_internal#3);
*** DEADLOCK ***
2 locks held by kswapd0/111:
#0: ffffffff8dd3a9a0 (fs_reclaim){+.+.}-{0:0}, at: balance_pgdat+0xa88/0x1970 mm/vmscan.c:6924
#1: ffff88801eae40e0 (&type->s_umount_key#62){++++}-{3:3}, at: super_trylock_shared fs/super.c:562 [inline]
#1: ffff88801eae40e0 (&type->s_umount_key#62){++++}-{3:3}, at: super_cache_scan+0x96/0x550 fs/super.c:196
stack backtrace:
CPU: 0 PID: 111 Comm: kswapd0 Not tainted 6.10.0-rc2-syzkaller-00010-g2ab795141095 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:114
check_noncircular+0x31a/0x400 kernel/locking/lockdep.c:2187
check_prev_add kernel/locking/lockdep.c:3134 [inline]
check_prevs_add kernel/locking/lockdep.c:3253 [inline]
validate_chain kernel/locking/lockdep.c:3869 [inline]
__lock_acquire+0x2478/0x3b30 kernel/locking/lockdep.c:5137
lock_acquire kernel/locking/lockdep.c:5754 [inline]
lock_acquire+0x1b1/0x560 kernel/locking/lockdep.c:5719
percpu_down_read include/linux/percpu-rwsem.h:51 [inline]
__sb_start_write include/linux/fs.h:1655 [inline]
sb_start_intwrite include/linux/fs.h:1838 [inline]
start_transaction+0xbc1/0x1a70 fs/btrfs/transaction.c:694
btrfs_commit_inode_delayed_inode+0x110/0x330 fs/btrfs/delayed-inode.c:1275
btrfs_evict_inode+0x960/0xe80 fs/btrfs/inode.c:5291
evict+0x2ed/0x6c0 fs/inode.c:667
iput_final fs/inode.c:1741 [inline]
iput.part.0+0x5a8/0x7f0 fs/inode.c:1767
iput+0x5c/0x80 fs/inode.c:1757
btrfs_scan_root fs/btrfs/extent_map.c:1118 [inline]
btrfs_free_extent_maps+0xbd3/0x1320 fs/btrfs/extent_map.c:1189
super_cache_scan+0x409/0x550 fs/super.c:227
do_shrink_slab+0x44f/0x11c0 mm/shrinker.c:435
shrink_slab+0x18a/0x1310 mm/shrinker.c:662
shrink_one+0x493/0x7c0 mm/vmscan.c:4790
shrink_many mm/vmscan.c:4851 [inline]
lru_gen_shrink_node+0x89f/0x1750 mm/vmscan.c:4951
shrink_node mm/vmscan.c:5910 [inline]
kswapd_shrink_node mm/vmscan.c:6720 [inline]
balance_pgdat+0x1105/0x1970 mm/vmscan.c:6911
kswapd+0x5ea/0xbf0 mm/vmscan.c:7180
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
</TASK>
So fix this by using btrfs_add_delayed_iput() so that the final iput is
delegated to the cleaner kthread.
Link: https://lore.kernel.org/linux-btrfs/000000000000892280061a344581@google.com/
Reported-by: syzbot+3dad89b3993a4b275e72@syzkaller.appspotmail.com
Fixes:
|
||
|
Filipe Manana
|
8e7860543a |
btrfs: fix extent map use-after-free when adding pages to compressed bio
At add_ra_bio_pages() we are accessing the extent map to calculate
'add_size' after we dropped our reference on the extent map, resulting
in a use-after-free. Fix this by computing 'add_size' before dropping our
extent map reference.
Reported-by: syzbot+853d80cba98ce1157ae6@syzkaller.appspotmail.com
Link: https://lore.kernel.org/linux-btrfs/000000000000038144061c6d18f2@google.com/
Fixes:
|
||
|
Kees Cook
|
0aef1d41c6 |
affs: struct slink_front: Replace 1-element array with flexible array
Replace the deprecated[1] use of a 1-element array in struct slink_front with a modern flexible array. No binary differences are present after this conversion. Link: https://github.com/KSPP/linux/issues/79 [1] Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org> Signed-off-by: Kees Cook <kees@kernel.org> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com> |
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Kees Cook
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e5f5ee827c |
affs: struct affs_data_head: Replace 1-element array with flexible array
Replace the deprecated[1] use of a 1-element array in struct affs_data_head with a modern flexible array. No binary differences are present after this conversion. Link: https://github.com/KSPP/linux/issues/79 [1] Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org> Signed-off-by: Kees Cook <kees@kernel.org> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com> |
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Kees Cook
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38a381a0bc |
affs: struct affs_head: Replace 1-element array with flexible array
AFFS uses struct affs_head's "table" array as a flexible array. Switch this to a proper flexible array[1]. There are no sizeof() uses; struct affs_head is only ever uses via direct casts. No binary output differences were found after this change. Link: https://github.com/KSPP/linux/issues/79 [1] Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org> Signed-off-by: Kees Cook <kees@kernel.org> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com> |