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Pull io_uring updates from Jens Axboe:
- Cleanup of the io-wq per-node mapping, notably getting rid of it so
we just have a single io_wq entry per ring (Breno)
- Followup to the above, move accounting to io_wq as well and
completely drop struct io_wqe (Gabriel)
- Enable KASAN for the internal io_uring caches (Breno)
- Add support for multishot timeouts. Some applications use timeouts to
wake someone waiting on completion entries, and this makes it a bit
easier to just have a recurring timer rather than needing to rearm it
every time (David)
- Support archs that have shared cache coloring between userspace and
the kernel, and hence have strict address requirements for mmap'ing
the ring into userspace. This should only be parisc/hppa. (Helge, me)
- XFS has supported O_DIRECT writes without needing to lock the inode
exclusively for a long time, and ext4 now supports it as well. This
is true for the common cases of not extending the file size. Flag the
fs as having that feature, and utilize that to avoid serializing
those writes in io_uring (me)
- Enable completion batching for uring commands (me)
- Revert patch adding io_uring restriction to what can be GUP mapped or
not. This does not belong in io_uring, as io_uring isn't really
special in this regard. Since this is also getting in the way of
cleanups and improvements to the GUP code, get rid of if (me)
- A few series greatly reducing the complexity of registered resources,
like buffers or files. Not only does this clean up the code a lot,
the simplified code is also a LOT more efficient (Pavel)
- Series optimizing how we wait for events and run task_work related to
it (Pavel)
- Fixes for file/buffer unregistration with DEFER_TASKRUN (Pavel)
- Misc cleanups and improvements (Pavel, me)
* tag 'for-6.4/io_uring-2023-04-21' of git://git.kernel.dk/linux: (71 commits)
Revert "io_uring/rsrc: disallow multi-source reg buffers"
io_uring: add support for multishot timeouts
io_uring/rsrc: disassociate nodes and rsrc_data
io_uring/rsrc: devirtualise rsrc put callbacks
io_uring/rsrc: pass node to io_rsrc_put_work()
io_uring/rsrc: inline io_rsrc_put_work()
io_uring/rsrc: add empty flag in rsrc_node
io_uring/rsrc: merge nodes and io_rsrc_put
io_uring/rsrc: infer node from ctx on io_queue_rsrc_removal
io_uring/rsrc: remove unused io_rsrc_node::llist
io_uring/rsrc: refactor io_queue_rsrc_removal
io_uring/rsrc: simplify single file node switching
io_uring/rsrc: clean up __io_sqe_buffers_update()
io_uring/rsrc: inline switch_start fast path
io_uring/rsrc: remove rsrc_data refs
io_uring/rsrc: fix DEFER_TASKRUN rsrc quiesce
io_uring/rsrc: use wq for quiescing
io_uring/rsrc: refactor io_rsrc_ref_quiesce
io_uring/rsrc: remove io_rsrc_node::done
io_uring/rsrc: use nospec'ed indexes
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git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs
Pull f2fs update from Jaegeuk Kim:
"In this round, we've mainly modified to support non-power-of-two zone
size, which is not required for f2fs by design. In order to avoid arch
dependency, we refactored the messy rb_entry structure shared across
different extent_cache. In addition to the improvement, we've also
fixed several subtle bugs and error cases.
Enhancements:
- support non-power-of-two zone size for zoned device
- remove sharing the rb_entry structure in extent cache
- refactor f2fs_gc to call checkpoint in urgent condition
- support iopoll
Bug fixes:
- fix potential corruption when moving a directory
- fix to avoid use-after-free for cached IPU bio
- fix the folio private usage
- avoid kernel warnings or panics in the cp_error case
- fix to recover quota data correctly
- fix some bugs in atomic operations
- fix system crash due to lack of free space in LFS
- fix null pointer panic in tracepoint in __replace_atomic_write_block
- fix iostat lock protection
- fix scheduling while atomic in decompression path
- preserve direct write semantics when buffering is forced
- fix to call f2fs_wait_on_page_writeback() in f2fs_write_raw_pages()"
* tag 'f2fs-for-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (52 commits)
f2fs: remove unnessary comment in __may_age_extent_tree
f2fs: allocate node blocks for atomic write block replacement
f2fs: use cow inode data when updating atomic write
f2fs: remove power-of-two limitation of zoned device
f2fs: allocate trace path buffer from names_cache
f2fs: add has_enough_free_secs()
f2fs: relax sanity check if checkpoint is corrupted
f2fs: refactor f2fs_gc to call checkpoint in urgent condition
f2fs: remove folio_detach_private() in .invalidate_folio and .release_folio
f2fs: remove bulk remove_proc_entry() and unnecessary kobject_del()
f2fs: support iopoll method
f2fs: remove batched_trim_sections node description
f2fs: fix to check return value of inc_valid_block_count()
f2fs: fix to check return value of f2fs_do_truncate_blocks()
f2fs: fix passing relative address when discard zones
f2fs: fix potential corruption when moving a directory
f2fs: add radix_tree_preload_end in error case
f2fs: fix to recover quota data correctly
f2fs: fix to check readonly condition correctly
docs: f2fs: Correct instruction to disable checkpoint
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git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm
Pull dlm updates from David Teigland:
- Remove some unused features (related to lock timeouts) that have been
previously scheduled for removal
- Fix a bug where the pending callback flag would be incorrectly
cleared, which could potentially result in missing a completion
callback
- Use an unbound workqueue for dlm socket handling so that socket
operations can be processed with less delay
- Fix possible lockspace join connection errors with large clusters
(e.g. over 16 nodes) caused by a small socket backlog setting
- Use atomic bit ops for internal flags to help avoid mistakes copying
flag values from messages
- Fix recently introduced bug where memory for lvb data could be
unnecessarily allocated for a lock
* tag 'dlm-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm:
fs: dlm: stop unnecessarily filling zero ms_extra bytes
fs: dlm: switch lkb_sbflags to atomic ops
fs: dlm: rsb hash table flag value to atomic ops
fs: dlm: move internal flags to atomic ops
fs: dlm: change dflags to use atomic bits
fs: dlm: store lkb distributed flags into own value
fs: dlm: remove DLM_IFL_LOCAL_MS flag
fs: dlm: rename stub to local message flag
fs: dlm: remove deprecated code parts
DLM: increase socket backlog to avoid hangs with 16 nodes
fs: dlm: add unbound flag to dlm_io workqueue
fs: dlm: fix DLM_IFL_CB_PENDING gets overwritten
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git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2
Pull gfs2 updates from Andreas Gruenbacher:
- Fix revoke processing at unmount and on read-only remount
- Refuse reading in inodes with an impossible indirect block height
- Various minor cleanups
* tag 'gfs2-v6.3-rc3-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2:
gfs2: gfs2_ail_empty_gl no log flush on error
gfs2: Issue message when revokes cannot be written
gfs2: Perform second log flush in gfs2_make_fs_ro
gfs2: return errors from gfs2_ail_empty_gl
gfs2: Move variable assignment behind a null pointer check in inode_go_dump
gfs2: Use gfs2_holder_initialized for jindex
gfs2: Eliminate gfs2_trim_blocks
gfs2: Fix inode height consistency check
gfs2: Remove ghs[] from gfs2_unlink
gfs2: Remove ghs[] from gfs2_link
gfs2: Remove duplicate i_nlink check from gfs2_link()
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git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs updates from David Sterba:
"Mostly core changes and cleanups, some notable fixes and two
performance improvements in directory logging.
The IO path cleanups are removing or refactoring old code, scrub main
loop has been completely rewritten also refactoring old code.
There are some changes to non-btrfs code, mostly trivial, the cgroup
punt bio logic is only moved from generic code.
Performance improvements:
- improve logging changes in a directory during one transaction,
avoid iterating over items and reduce lock contention (fsync time
4x lower)
- when logging directory entries during one transaction, reduce
locking of subvolume trees by checking tree-log instead
(improvement in throughput and latency for concurrent access to a
subvolume)
Notable fixes:
- dev-replace:
- properly honor read mode when requested to avoid reading from
source device
- target device won't be used for eventual read repair, this is
unreliable for NODATASUM files
- when there are unpaired (and unrepairable) metadata during
replace, exit early with error and don't try to finish whole
operation
- scrub ioctl properly rejects unknown flags
- fix global block reserve calculations
- fix partial direct io write when there's a page fault in the
middle, iomap will try to continue with partial request but the
btrfs part did not match that, this can lead to zeros written
instead of data
Core changes:
- io path:
- continued cleanups and refactoring around bio handling
- extent io submit path simplifications and cleanups
- flush write path simplifications and cleanups
- rework logic of passing sync mode of bio, with further cleanups
- rewrite scrub code flow, restructure how the stripes are enumerated
and verified in a more unified way
- allow to set lower threshold for block group reclaim in debug mode
to aid zoned mode testing
- remove obsolete time-based delayed ref throttling logic when
truncating items
- DREW locks are not using percpu variables anymore
- more warning fixes (-Wmaybe-uninitialized)
- u64 division simplifications
- error handling improvements
Non-btrfs code changes:
- push cgroup punt bio logic to btrfs code (there was no other user
of that), the functionality can be now selected separately by
BLK_CGROUP_PUNT_BIO
- crc32c_impl removed after removing last uses in btrfs code
- add btrfs_assertfail() to objtool table"
* tag 'for-6.4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: (147 commits)
btrfs: mark btrfs_assertfail() __noreturn
btrfs: fix uninitialized variable warnings
btrfs: use log root when iterating over index keys when logging directory
btrfs: avoid iterating over all indexes when logging directory
btrfs: dev-replace: error out if we have unrepaired metadata error during
btrfs: remove pointless loop at btrfs_get_next_valid_item()
btrfs: scrub: reject unsupported scrub flags
btrfs: reinterpret async discard iops_limit=0 as no delay
btrfs: set default discard iops_limit to 1000
btrfs: remove unused raid56 functions which were dedicated for scrub
btrfs: scrub: remove scrub_bio structure
btrfs: scrub: remove scrub_block and scrub_sector structures
btrfs: scrub: remove the old scrub recheck code
btrfs: scrub: remove the old writeback infrastructure
btrfs: scrub: remove scrub_parity structure
btrfs: scrub: use scrub_stripe to implement RAID56 P/Q scrub
btrfs: scrub: switch scrub_simple_mirror() to scrub_stripe infrastructure
btrfs: scrub: introduce helper to queue a stripe for scrub
btrfs: scrub: introduce error reporting functionality for scrub_stripe
btrfs: scrub: introduce a writeback helper for scrub_stripe
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git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
Pull ext2, reiserfs, udf, and quota updates from Jan Kara:
"A couple of small fixes and cleanups for ext2, udf, reiserfs, and
quota.
The biggest change is making CONFIG_PRINT_QUOTA_WARNING depend on
BROKEN with an outlook for removing it completely in an year or so"
* tag 'fs_for_v6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
quota: mark PRINT_QUOTA_WARNING as BROKEN
quota: update Kconfig comment
reiserfs: remove unused iter variable
quota: Use register_sysctl_init() for registering fs_dqstats_table
reiserfs: remove unused sched_count variable
ext2: remove redundant assignment to pointer end
quota: make dquot_set_dqinfo return errors from ->write_info
quota: fixup *_write_file_info() to return proper error code
quota: simplify two-level sysctl registration for fs_dqstats_table
udf: use wrapper i_blocksize() in udf_discard_prealloc()
udf: Use folios in udf_adinicb_writepage()
ext2: Check block size validity during mount
ext2: Correct maximum ext2 filesystem block size
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The EFI zboot code is not built as part of the kernel proper, like the
ordinary EFI stub, but still needs access to symbols that are defined
only internally in the kernel, and are left unexposed deliberately to
avoid creating ABI inadvertently that we're stuck with later.
So capture the kernel code size of the kernel image, and inject it as an
ELF symbol into the object that contains the compressed payload, where
it will be accessible to zboot code that needs it.
Signed-off-by: Ard Biesheuvel <[email protected]>
Acked-by: Mark Rutland <[email protected]>
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id_bitsmash is unsigned. We need to explicitly check for -1, rather
than use > 0.
Fixes: aa5af0aa90ba ("RISC-V: Add hwprobe vDSO function and data")
Signed-off-by: Andrew Jones <[email protected]>
Reviewed-by: Conor Dooley <[email protected]>
Reviewed-by: Evan Green <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Palmer Dabbelt <[email protected]>
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Only capture the first cpu_id in order for the comparison
below to be of any use.
Fixes: ea3de9ce8aa2 ("RISC-V: Add a syscall for HW probing")
Signed-off-by: Andrew Jones <[email protected]>
Reviewed-by: Conor Dooley <[email protected]>
Reviewed-by: Evan Green <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Palmer Dabbelt <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Pull ext4 updates from Ted Ts'o:
"There are a number of major cleanups in ext4 this cycle:
- The data=journal writepath has been significantly cleaned up and
simplified, and reduces a large number of data=journal special
cases by Jan Kara.
- Ojaswin Muhoo has replaced linked list used to track extents that
have been used for inode preallocation with a red-black tree in the
multi-block allocator. This improves performance for workloads
which do a large number of random allocating writes.
- Thanks to Kemeng Shi for a lot of cleanup and bug fixes in the
multi-block allocator.
- Matthew wilcox has converted the code paths for reading and writing
ext4 pages to use folios.
- Jason Yan has continued to factor out ext4_fill_super() into
smaller functions for improve ease of maintenance and
comprehension.
- Josh Triplett has created an uapi header for ext4 userspace API's"
* tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (105 commits)
ext4: Add a uapi header for ext4 userspace APIs
ext4: remove useless conditional branch code
ext4: remove unneeded check of nr_to_submit
ext4: move dax and encrypt checking into ext4_check_feature_compatibility()
ext4: factor out ext4_block_group_meta_init()
ext4: move s_reserved_gdt_blocks and addressable checking into ext4_check_geometry()
ext4: rename two functions with 'check'
ext4: factor out ext4_flex_groups_free()
ext4: use ext4_group_desc_free() in ext4_put_super() to save some duplicated code
ext4: factor out ext4_percpu_param_init() and ext4_percpu_param_destroy()
ext4: factor out ext4_hash_info_init()
Revert "ext4: Fix warnings when freezing filesystem with journaled data"
ext4: Update comment in mpage_prepare_extent_to_map()
ext4: Simplify handling of journalled data in ext4_bmap()
ext4: Drop special handling of journalled data from ext4_quota_on()
ext4: Drop special handling of journalled data from ext4_evict_inode()
ext4: Fix special handling of journalled data from extent zeroing
ext4: Drop special handling of journalled data from extent shifting operations
ext4: Drop special handling of journalled data from ext4_sync_file()
ext4: Commit transaction before writing back pages in data=journal mode
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Pull fsverity updates from Eric Biggers:
"Several cleanups and fixes for fs/verity/, including a couple minor
fixes to the changes in 6.3 that added support for Merkle tree block
sizes less than the page size"
* tag 'fsverity-for-linus' of git://git.kernel.org/pub/scm/fs/fsverity/linux:
fsverity: reject FS_IOC_ENABLE_VERITY on mode 3 fds
fsverity: explicitly check for buffer overflow in build_merkle_tree()
fsverity: use WARN_ON_ONCE instead of WARN_ON
fs-verity: simplify sysctls with register_sysctl()
fs/buffer.c: use b_folio for fsverity work
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Pull fscrypt updates from Eric Biggers:
"A few cleanups for fs/crypto/, and another patch to prepare for the
upcoming CephFS encryption support"
* tag 'fscrypt-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/linux:
fscrypt: optimize fscrypt_initialize()
fscrypt: use WARN_ON_ONCE instead of WARN_ON
fscrypt: new helper function - fscrypt_prepare_lookup_partial()
fs/buffer.c: use b_folio for fscrypt work
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git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto updates from Herbert Xu:
"API:
- Total usage stats now include all that returned errors (instead of
just some)
- Remove maximum hash statesize limit
- Add cloning support for hmac and unkeyed hashes
- Demote BUG_ON in crypto_unregister_alg to a WARN_ON
Algorithms:
- Use RIP-relative addressing on x86 to prepare for PIE build
- Add accelerated AES/GCM stitched implementation on powerpc P10
- Add some test vectors for cmac(camellia)
- Remove failure case where jent is unavailable outside of FIPS mode
in drbg
- Add permanent and intermittent health error checks in jitter RNG
Drivers:
- Add support for 402xx devices in qat
- Add support for HiSTB TRNG
- Fix hash concurrency issues in stm32
- Add OP-TEE firmware support in caam"
* tag 'v6.4-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (139 commits)
i2c: designware: Add doorbell support for Mendocino
i2c: designware: Use PCI PSP driver for communication
powerpc: Move Power10 feature PPC_MODULE_FEATURE_P10
crypto: p10-aes-gcm - Remove POWER10_CPU dependency
crypto: testmgr - Add some test vectors for cmac(camellia)
crypto: cryptd - Add support for cloning hashes
crypto: cryptd - Convert hash to use modern init_tfm/exit_tfm
crypto: hmac - Add support for cloning
crypto: hash - Add crypto_clone_ahash/shash
crypto: api - Add crypto_clone_tfm
crypto: api - Add crypto_tfm_get
crypto: x86/sha - Use local .L symbols for code
crypto: x86/crc32 - Use local .L symbols for code
crypto: x86/aesni - Use local .L symbols for code
crypto: x86/sha256 - Use RIP-relative addressing
crypto: x86/ghash - Use RIP-relative addressing
crypto: x86/des3 - Use RIP-relative addressing
crypto: x86/crc32c - Use RIP-relative addressing
crypto: x86/cast6 - Use RIP-relative addressing
crypto: x86/cast5 - Use RIP-relative addressing
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git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux
Pull flexible-array updates from Gustavo Silva:
"Transform more zero-length and one-element arrays into C99
flexible-array members"
* tag 'flex-array-transformations-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux:
uapi: net: ipv6: Replace fake flex-array with flex-array member
drm/vmwgfx: Replace one-element array with flexible-array member
ASoC: uapi: Replace zero-length arrays with __DECLARE_FLEX_ARRAY() helper
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Add 2 early command line parameters that allow to downgrade satp mode
(using the same naming as x86):
- "no5lvl": use a 4-level page table (down from sv57 to sv48)
- "no4lvl": use a 3-level page table (down from sv57/sv48 to sv39)
Note that going through the device tree to get the kernel command line
works with ACPI too since the efi stub creates a device tree anyway with
the command line.
In KASAN kernels, we can't use the libfdt that early in the boot process
since we are not ready to execute instrumented functions. So instead of
using the "generic" libfdt, we compile our own versions of those functions
that are not instrumented and that are prefixed so that they do not
conflict with the generic ones. We also need the non-instrumented versions
of the string functions and the prefixed versions of memcpy/memmove.
This is largely inspired by commit aacd149b6238 ("arm64: head: avoid
relocating the kernel twice for KASLR") from which I removed compilation
flags that were not relevant to RISC-V at the moment (LTO, SCS). Also
note that we have to link with -z norelro to avoid ld.lld to throw a
warning with the new .got sections, like in commit 311bea3cb9ee ("arm64:
link with -z norelro for LLD or aarch64-elf").
Signed-off-by: Alexandre Ghiti <[email protected]>
Tested-by: Björn Töpel <[email protected]>
Reviewed-by: Björn Töpel <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Palmer Dabbelt <[email protected]>
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Dumping the dtb from new versions of QEMU warns that sv57 is an
undocumented mmu-type. The kernel has supported sv57 for about a year,
so bring it into the fold.
Signed-off-by: Conor Dooley <[email protected]>
Acked-by: Rob Herring <[email protected]>
Link: https://lore.kernel.org/r/20230424-rival-habitual-478567c516f0@spud
Signed-off-by: Palmer Dabbelt <[email protected]>
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If the buffer length is larger than 16 and concatenate is set to false,
there would be missing spaces every 16 bytes.
Example:
Before: c5 11 10 50 05 4d 31 40 00 40 00 40 00 4d 31 4000 40 00
After: c5 11 10 50 05 4d 31 40 00 40 00 40 00 4d 31 40 00 40 00
Link: https://lore.kernel.org/linux-trace-kernel/[email protected]
Signed-off-by: Ken Lin <[email protected]>
Signed-off-by: Steven Rostedt (Google) <[email protected]>
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ring_buffer_reset_online_cpus
In ring_buffer_reset_online_cpus, the buffer_size_kb write operation
may permanently fail if the cpu_online_mask changes between two
for_each_online_buffer_cpu loops. The number of increases and decreases
on both cpu_buffer->resize_disabled and cpu_buffer->record_disabled may be
inconsistent, causing some CPUs to have non-zero values for these atomic
variables after the function returns.
This issue can be reproduced by "echo 0 > trace" while hotplugging cpu.
After reproducing success, we can find out buffer_size_kb will not be
functional anymore.
To prevent leaving 'resize_disabled' and 'record_disabled' non-zero after
ring_buffer_reset_online_cpus returns, we ensure that each atomic variable
has been set up before atomic_sub() to it.
Link: https://lore.kernel.org/linux-trace-kernel/[email protected]
Cc: [email protected]
Cc: <[email protected]>
Cc: [email protected]
Fixes: b23d7a5f4a07 ("ring-buffer: speed up buffer resets by avoiding synchronize_rcu for each CPU")
Reviewed-by: Cheng-Jui Wang <[email protected]>
Signed-off-by: Tze-nan Wu <[email protected]>
Signed-off-by: Steven Rostedt (Google) <[email protected]>
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Instead of invoking put_page() one-at-a-time, pass the "response"
portion of rq_pages directly to release_pages() to reduce the number
of times each nfsd thread invokes a page allocator API.
Since svc_xprt_release() is not invoked while a client is waiting
for an RPC Reply, this is not expected to directly impact mean
request latencies on a lightly or moderately loaded server. However
as workload intensity increases, I expect somewhat better
scalability: the same number of server threads should be able to
handle more work.
Reviewed-by: Calum Mackay <[email protected]>
Signed-off-by: Chuck Lever <[email protected]>
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Clean-up: There doesn't seem to be a reason why this function is
stuck in a header. One thing it prevents is the convenient addition
of tracing. Moving it to a source file also makes the rq_respages
clean-up logic easier to find.
Reviewed-by: Calum Mackay <[email protected]>
Signed-off-by: Chuck Lever <[email protected]>
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When queueing a dispose list to the appropriate "freeme" lists, it
pointlessly queues the objects one at a time to an intermediate list.
Remove a few helpers and just open code a list_move to make it more
clear and efficient. Better document the resulting functions with
kerneldoc comments.
Signed-off-by: Jeff Layton <[email protected]>
Signed-off-by: Chuck Lever <[email protected]>
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Clean up: All callers of svc_process() ignore its return value, so
svc_process() can safely be converted to return void. Ditto for
svc_send().
The return value of ->xpo_sendto() is now used only as part of a
trace event.
Signed-off-by: Chuck Lever <[email protected]>
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The TLS handshake upcall mechanism requires a non-NULL sock->file on
the socket it hands to user space. svc_sock_free() already releases
sock->file properly if one exists.
Signed-off-by: Chuck Lever <[email protected]>
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There have been several bugs over the years where the NFSD splice
actor has attempted to write outside the rq_pages array.
This is a "should never happen" condition, but if for some reason
the pipe splice actor should attempt to walk past the end of
rq_pages, it needs to terminate the READ operation to prevent
corruption of the pointer addresses in the fields just beyond the
array.
A server crash is thus prevented. Since the code is not behaving,
the READ operation returns -EIO to the client. None of the READ
payload data can be trusted if the splice actor isn't operating as
expected.
Suggested-by: Jeff Layton <[email protected]>
Signed-off-by: Chuck Lever <[email protected]>
Reviewed-by: Jeff Layton <[email protected]>
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There is no need to declare two tables to just create directories,
this can be easily be done with a prefix path with register_sysctl().
Simplify this registration.
Signed-off-by: Luis Chamberlain <[email protected]>
Reviewed-by: Jeff Layton <[email protected]>
Signed-off-by: Chuck Lever <[email protected]>
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The get_expiry() function currently returns a timestamp, and uses the
special return value of 0 to indicate an error.
Unfortunately this causes a problem when 0 is the correct return value.
On a system with no RTC it is possible that the boot time will be seen
to be "3". When exportfs probes to see if a particular filesystem
supports NFS export it tries to cache information with an expiry time of
"3". The intention is for this to be "long in the past". Even with no
RTC it will not be far in the future (at most a second or two) so this
is harmless.
But if the boot time happens to have been calculated to be "3", then
get_expiry will fail incorrectly as it converts the number to "seconds
since bootime" - 0.
To avoid this problem we change get_expiry() to report the error quite
separately from the expiry time. The error is now the return value.
The expiry time is reported through a by-reference parameter.
Reported-by: Jerry Zhang <[email protected]>
Tested-by: Jerry Zhang <[email protected]>
Signed-off-by: NeilBrown <[email protected]>
Reviewed-by: Jeff Layton <[email protected]>
Signed-off-by: Chuck Lever <[email protected]>
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Signed-off-by: Jeff Layton <[email protected]>
Signed-off-by: Chuck Lever <[email protected]>
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lockd needs to be able to hash filehandles for tracepoints. Move the
nfs_fhandle_hash() helper to a common nfs include file.
Signed-off-by: Jeff Layton <[email protected]>
Signed-off-by: Chuck Lever <[email protected]>
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Currently lockd just dequeues the block and ignores it if the client
sends a GRANT_RES with a status of nlm_lck_denied. That status is an
indicator that the client has rejected the lock, so the right thing to
do is to unlock the lock we were trying to grant.
Reported-by: Yongcheng Yang <[email protected]>
Link: https://bugzilla.redhat.com/show_bug.cgi?id=2063818
Signed-off-by: Jeff Layton <[email protected]>
Signed-off-by: Chuck Lever <[email protected]>
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After the wait for a grant is done (for whatever reason), nlmclnt_block
updates the status of the nlm_rqst with the status of the block. At the
point it does this, however, the block is still queued its status could
change at any time.
This is particularly a problem when the waiting task is signaled during
the wait. We can end up giving up on the lock just before the GRANTED_MSG
callback comes in, and accept it even though the lock request gets back
an error, leaving a dangling lock on the server.
Since the nlm_wait never lives beyond the end of nlmclnt_lock, put it on
the stack and add functions to allow us to enqueue and dequeue the
block. Enqueue it just before the lock/wait loop, and dequeue it
just after we exit the loop instead of waiting until the end of
the function. Also, scrape the status at the time that we dequeue it to
ensure that it's final.
Reported-by: Yongcheng Yang <[email protected]>
Link: https://bugzilla.redhat.com/show_bug.cgi?id=2063818
Signed-off-by: Jeff Layton <[email protected]>
Signed-off-by: Chuck Lever <[email protected]>
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The next patch needs struct nlm_wait in fs/lockd/clntproc.c, so move
the definition to a shared header file. As an added clean-up, drop
the unused b_reclaim field.
Signed-off-by: Jeff Layton <[email protected]>
Signed-off-by: Chuck Lever <[email protected]>
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Signed-off-by: Jeff Layton <[email protected]>
Signed-off-by: Chuck Lever <[email protected]>
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It's easily possible for the server to have an outstanding lock when we
go to shut down. When that happens, we often get a warning like this in
the kernel log:
lockd: couldn't shutdown host module for net f0000000!
This is because the shutdown procedures skip removing any hosts that
still have outstanding resources (locks). Eventually, things seem to get
cleaned up anyway, but the log message is unsettling, and server
shutdown doesn't seem to be working the way it was intended.
Ensure that we tear down any resources held on behalf of a client when
tearing one down for server shutdown.
Reported-by: Yongcheng Yang <[email protected]>
Link: https://bugzilla.redhat.com/show_bug.cgi?id=2063818
Signed-off-by: Jeff Layton <[email protected]>
Signed-off-by: Chuck Lever <[email protected]>
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While we were converting the nfs4_file hashtable to use the kernel's
resizable hashtable data structure, Neil Brown observed that the
list variant (rhltable) would be better for managing nfsd_file items
as well. The nfsd_file hash table will contain multiple entries for
the same inode -- these should be kept together on a list. And, it
could be possible for exotic or malicious client behavior to cause
the hash table to resize itself on every insertion.
A nice simplification is that rhltable_lookup() can return a list
that contains only nfsd_file items that match a given inode, which
enables us to eliminate specialized hash table helper functions and
use the default functions provided by the rhashtable implementation).
Since we are now storing nfsd_file items for the same inode on a
single list, that effectively reduces the number of hash entries
that have to be tracked in the hash table. The mininum bucket count
is therefore lowered.
Light testing with fstests generic/531 show no regressions.
Suggested-by: Neil Brown <[email protected]>
Signed-off-by: Chuck Lever <[email protected]>
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On most filesystems, there is no reason to delay reaping an nfsd_file
just because its underlying inode is still under writeback. nfsd just
relies on client activity or the local flusher threads to do writeback.
The main exception is NFS, which flushes all of its dirty data on last
close. Add a new EXPORT_OP_FLUSH_ON_CLOSE flag to allow filesystems to
signal that they do this, and only skip closing files under writeback on
such filesystems.
Also, remove a redundant NULL file pointer check in
nfsd_file_check_writeback, and clean up nfs's export op flag
definitions.
Signed-off-by: Jeff Layton <[email protected]>
Acked-by: Anna Schumaker <[email protected]>
Signed-off-by: Chuck Lever <[email protected]>
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Signed-off-by: Jeff Layton <[email protected]>
Signed-off-by: Chuck Lever <[email protected]>
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The last thing that filp_close does is an fput, so don't bother taking
and putting the extra reference.
Signed-off-by: Jeff Layton <[email protected]>
Signed-off-by: Chuck Lever <[email protected]>
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David Howells mentioned that he found this bit of code confusing, so
sprinkle in some comments to clarify.
Reported-by: David Howells <[email protected]>
Signed-off-by: Jeff Layton <[email protected]>
Signed-off-by: Chuck Lever <[email protected]>
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An error from break_lease is non-fatal, so we needn't destroy the
nfsd_file in that case. Just put the reference like we normally would
and return the error.
Signed-off-by: Jeff Layton <[email protected]>
Signed-off-by: Chuck Lever <[email protected]>
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test_bit returns bool, so we can just compare the result of that to the
key->gc value without the "!!".
Signed-off-by: Jeff Layton <[email protected]>
Signed-off-by: Chuck Lever <[email protected]>
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Since v4 files are expected to be long-lived, there's little value in
closing them out of the cache when there is conflicting access.
Change the comparator to also match the gc value in the key. Change both
of the current users of that key to set the gc value in the key to
"true".
Signed-off-by: Jeff Layton <[email protected]>
Signed-off-by: Chuck Lever <[email protected]>
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Signed-off-by: Jeff Layton <[email protected]>
Signed-off-by: Chuck Lever <[email protected]>
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commit 4bb7aac70b5d ("net: phy: fix circular LEDS_CLASS dependencies")
solved a build failure, but introduces a new config knob with a default
'y' value: PHYLIB_LEDS.
The latter is against the current new config policy. The exception
was raised to allow the user to catch bad configurations without led
support.
Anyway the current definition of PHYLIB_LEDS does not fit the above
goal: if LEDS_CLASS is disabled, the new config will be available
only with PHYLIB disabled, too.
Hide the mentioned config, to preserve the randconfig testing done so
far, while respecting the mentioned policy.
Suggested-by: Andrew Lunn <[email protected]>
Suggested-by: Arnd Bergmann <[email protected]>
Signed-off-by: Paolo Abeni <[email protected]>
Link: https://lore.kernel.org/r/d82489be8ed911c383c3447e9abf469995ccf39a.1682496488.git.pabeni@redhat.com
Signed-off-by: Paolo Abeni <[email protected]>
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https://git.linaro.org/people/daniel.lezcano/linux into timers/core
Pull clocksource and clockevent updates from Daniel Lezcano:
- Fix error returned for shared timers on Exynos MCT timers (Krzysztof Kozlowski)
- Code reorg by splitting the CPUXGPT timer code (AngeloGioacchino Del Regno)
- Remove the unused mxc_timer_init() function on i.MX (Fabio Estevam)
- Replace of_get_address() and of_translate_address() calls with
single call to of_address_to_resource() on TI timer (Rob Herring)
- Mark driver as non-removable and remove useless remove() callback on
SH MTU2 and STM32 LP timers. Improve the error message in the remove
callback of the TI DM timer (Uwe Kleine-König)
- Convert to platform remove callback returning void on Tegra186, TI
DM timers (Uwe Kleine-König)
- Drop pointless of_match_ptr for ID table in the STM32 LP timer
(Krzysztof Kozlowski)
- Fix memory leak in davinci_timer_register when init fails on DaVinci
(Qinrun Dai)
- Fix finding alwon timer regression on Timer TI DM (Tony Lindgren)
- Use of_property_read_bool() for boolean properties on TI timer (Rob
Herring)
- Drop superfluous rk3288 compatible and add rk3588 compatible DT
bindings (Cristian Ciocaltea)
Link: htttps://lore.kernel.org/lkml/[email protected]
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No conflicts.
Signed-off-by: Paolo Abeni <[email protected]>
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Clang has a bug that casues the pcrel code model not to be used when any of
-msoft-float, -mno-altivec, or -mno-vsx are set. Leaving these off causes
FP/vector instructions to be generated, causing crashes. So disable pcrel
for clang for now.
Fixes: 7e3a68be42e10 ("powerpc/64: vmlinux support building with PCREL addresing")
Signed-off-by: Nicholas Piggin <[email protected]>
Signed-off-by: Michael Ellerman <[email protected]>
Link: https://msgid.link/[email protected]
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Fix a conflict between commit 4e991e3c16a35 ("powerpc: add CFUNC
assembly label annotation") and commit b504b6aade040 ("powerpc:
differentiate kthread from user kernel thread start").
Fixes: 4e991e3c16a35 ("powerpc: add CFUNC assembly label annotation")
Fixes: b504b6aade040 ("powerpc: differentiate kthread from user kernel thread start")
Signed-off-by: Nicholas Piggin <[email protected]>
Signed-off-by: Michael Ellerman <[email protected]>
Link: https://msgid.link/[email protected]
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probe_vendor_features() is now called from smp_callin(), which is not
__init code and runs during cpu hotplug events. Remove the
__init_or_module decoration from it and the functions it calls to avoid
walking into outer space.
Fixes: 62a31d6e38bd ("RISC-V: hwprobe: Support probing of misaligned access performance")
Signed-off-by: Evan Green <[email protected]>
Reviewed-by: Conor Dooley <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Palmer Dabbelt <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management updates from Rafael Wysocki:
"These update several cpufreq drivers and the cpufreq core, add sysfs
interface for exposing the time really spent in the platform low-power
state during suspend-to-idle, update devfreq (core and drivers) and
the pm-graph suite of tools and clean up code.
Specifics:
- Fix the frequency unit in cpufreq_verify_current_freq checks()
Sanjay Chandrashekara)
- Make mode_state_machine in amd-pstate static (Tom Rix)
- Make the cpufreq core require drivers with target_index() to set
freq_table (Viresh Kumar)
- Fix typo in the ARM_BRCMSTB_AVS_CPUFREQ Kconfig entry (Jingyu Wang)
- Use of_property_read_bool() for boolean properties in the pmac32
cpufreq driver (Rob Herring)
- Make the cpufreq sysfs interface return proper error codes on
obviously invalid input (qinyu)
- Add guided autonomous mode support to the AMD P-state driver (Wyes
Karny)
- Make the Intel P-state driver enable HWP IO boost on all server
platforms (Srinivas Pandruvada)
- Add opp and bandwidth support to tegra194 cpufreq driver (Sumit
Gupta)
- Use of_property_present() for testing DT property presence (Rob
Herring)
- Remove MODULE_LICENSE in non-modules (Nick Alcock)
- Add SM7225 to cpufreq-dt-platdev blocklist (Luca Weiss)
- Optimizations and fixes for qcom-cpufreq-hw driver (Krzysztof
Kozlowski, Konrad Dybcio, and Bjorn Andersson)
- DT binding updates for qcom-cpufreq-hw driver (Konrad Dybcio and
Bartosz Golaszewski)
- Updates and fixes for mediatek driver (Jia-Wei Chang and
AngeloGioacchino Del Regno)
- Use of_property_present() for testing DT property presence in the
cpuidle code (Rob Herring)
- Drop unnecessary (void *) conversions from the PM core (Li zeming)
- Add sysfs files to represent time spent in a platform sleep state
during suspend-to-idle and make AMD and Intel PMC drivers use them
Mario Limonciello)
- Use of_property_present() for testing DT property presence (Rob
Herring)
- Add set_required_opps() callback to the 'struct opp_table', to make
the code paths cleaner (Viresh Kumar)
- Update the pm-graph siute of utilities to v5.11 with the following
changes:
* New script which allows users to install the latest pm-graph
from the upstream github repo.
* Update all the dmesg suspend/resume PM print formats to be able
to process recent timelines using dmesg only.
* Add ethtool output to the log for the system's ethernet device
if ethtool exists.
* Make the tool more robustly handle events where mangled dmesg
or ftrace outputs do not include all the requisite data.
- Make the sleepgraph utility recognize "CPU killed" messages (Xueqin
Luo)
- Remove unneeded SRCU selection in Kconfig because it's always set
from devfreq core (Paul E. McKenney)
- Drop of_match_ptr() macro from exynos-bus.c because this driver is
always using the DT table for driver probe (Krzysztof Kozlowski)
- Use the preferred of_property_present() instead of the low-level
of_get_property() on exynos-bus.c (Rob Herring)
- Use devm_platform_get_and_ioream_resource() in exyno-ppmu.c (Yang
Li)"
* tag 'pm-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (44 commits)
platform/x86/intel/pmc: core: Report duration of time in HW sleep state
platform/x86/intel/pmc: core: Always capture counters on suspend
platform/x86/amd: pmc: Report duration of time in hw sleep state
PM: Add sysfs files to represent time spent in hardware sleep state
cpufreq: use correct unit when verify cur freq
cpufreq: tegra194: add OPP support and set bandwidth
cpufreq: amd-pstate: Make varaiable mode_state_machine static
PM: core: Remove unnecessary (void *) conversions
cpufreq: drivers with target_index() must set freq_table
PM / devfreq: exynos-ppmu: Use devm_platform_get_and_ioremap_resource()
OPP: Move required opps configuration to specialized callback
OPP: Handle all genpd cases together in _set_required_opps()
cpufreq: qcom-cpufreq-hw: Revert adding cpufreq qos
dt-bindings: cpufreq: cpufreq-qcom-hw: Add QCM2290
dt-bindings: cpufreq: cpufreq-qcom-hw: Sanitize data per compatible
dt-bindings: cpufreq: cpufreq-qcom-hw: Allow just 1 frequency domain
cpufreq: Add SM7225 to cpufreq-dt-platdev blocklist
cpufreq: qcom-cpufreq-hw: fix double IO unmap and resource release on exit
cpufreq: mediatek: Raise proc and sram max voltage for MT7622/7623
cpufreq: mediatek: raise proc/sram max voltage for MT8516
...
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI updates from Rafael Wysocki:
"These update the ACPICA code in the kernel to upstream revision
20230331, fix the ACPI SBS driver and the evaluation of the _PDC
method on Xen dom0 in the ACPI processor driver, update the ACPI
driver for Intel SoCs and clean up code in multiple places.
Specifics:
- Update the ACPICA code in the kernel to upstream revision 20230331
including the following changes:
* Delete bogus node_array array of pointers from AEST table
(Jessica Clarke)
* Add support for trace buffer extension in GICC to the ACPI MADT
parser (Xiongfeng Wang)
* Add missing macro ACPI_FUNCTION_TRACE() for
acpi_ns_repair_HID() (Xiongfeng Wang)
* Add missing tables to astable (Pedro Falcato)
* Add support for 64 bit loong_arch compilation to ACPICA (Huacai
Chen)
* Add support for ASPT table in disassembler to ACPICA (Jeremi
Piotrowski)
* Add support for Arm's MPAM ACPI table version 2 (Hesham
Almatary)
* Update all copyrights/signons in ACPICA to 2023 (Bob Moore)
* Add support for ClockInput resource (v6.5) (Niyas Sait)
* Add RISC-V INTC interrupt controller definition to the list of
supported interrupt controllers for MADT (Sunil V L)
* Add structure definitions for the RISC-V RHCT ACPI table (Sunil
V L)
* Address several cases in which the ACPICA code might lead to
undefined behavior (Tamir Duberstein)
* Make ACPICA code support flexible arrays properly (Kees Cook)
* Check null return of ACPI_ALLOCATE_ZEROED in
acpi_db_display_objects() (void0red)
* Add os specific support for Zephyr RTOS to ACPICA (Najumon)
* Update version to 20230331 (Bob Moore)
- Fix evaluating the _PDC ACPI control method when running as Xen
dom0 (Roger Pau Monne)
- Use platform devices to load ACPI PPC and PCC drivers (Petr Pavlu)
- Check for null return of devm_kzalloc() in fch_misc_setup() (Kang
Chen)
- Log a message if enable_irq_wake() fails for the ACPI SCI (Simon
Gaiser)
- Initialize the correct IOMMU fwspec while parsing ACPI VIOT
(Jean-Philippe Brucker)
- Amend indentation and prefix error messages with FW_BUG in the ACPI
SPCR parsing code (Andy Shevchenko)
- Enable ACPI sysfs support for CCEL records (Kuppuswamy
Sathyanarayanan)
- Make the APEI error injection code warn on invalid arguments when
explicitly indicated by platform (Shuai Xue)
- Add CXL error types to the error injection code in APEI (Tony Luck)
- Refactor acpi_data_prop_read_single() (Andy Shevchenko)
- Fix two issues in the ACPI SBS driver (Armin Wolf)
- Replace ternary operator with min_t() in the generic ACPI thermal
zone driver (Jiangshan Yi)
- Ensure that ACPI notify handlers are not running after removal and
clean up code in acpi_sb_notify() (Rafael Wysocki)
- Remove register_backlight_delay module option and code and remove
quirks for false-positive backlight control support advertised on
desktop boards (Hans de Goede)
- Replace irqdomain.h include with struct declarations in ACPI
headers and update several pieces of code previously including of.h
implicitly through those headers (Rob Herring)
- Fix acpi_evaluate_dsm_typed() redefinition error (Kiran K)
- Update the pm_profile sysfs attribute documentation (Rafael
Wysocki)
- Add 80862289 ACPI _HID for second PWM controller on Cherry Trail to
the ACPI driver for Intel SoCs (Hans de Goede)"
* tag 'acpi-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (64 commits)
ACPI: LPSS: Add 80862289 ACPI _HID for second PWM controller on Cherry Trail
ACPI: bus: Ensure that notify handlers are not running after removal
ACPI: bus: Add missing braces to acpi_sb_notify()
ACPI: video: Remove desktops without backlight DMI quirks
ACPI: video: Remove register_backlight_delay module option and code
ACPI: Replace irqdomain.h include with struct declarations
fpga: lattice-sysconfig-spi: Add explicit include for of.h
tpm: atmel: Add explicit include for of.h
virtio-mmio: Add explicit include for of.h
pata: ixp4xx: Add explicit include for of.h
ata: pata_macio: Add explicit include of irqdomain.h
serial: 8250_tegra: Add explicit include for of.h
net: rfkill-gpio: Add explicit include for of.h
staging: iio: resolver: ad2s1210: Add explicit include for of.h
iio: adc: ad7292: Add explicit include for of.h
ACPICA: Update version to 20230331
ACPICA: add os specific support for Zephyr RTOS
ACPICA: ACPICA: check null return of ACPI_ALLOCATE_ZEROED in acpi_db_display_objects
ACPICA: acpi_resource_irq: Replace 1-element arrays with flexible array
ACPICA: acpi_madt_oem_data: Fix flexible array member definition
...
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