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635de956a7
2710 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Linus Torvalds
|
635de956a7 |
The x86 MM changes in this cycle were:
- Implement concurrent TLB flushes, which overlaps the local TLB flush with the
remote TLB flush. In testing this improved sysbench performance measurably by
a couple of percentage points, especially if TLB-heavy security mitigations
are active.
- Further micro-optimizations to improve the performance of TLB flushes.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-mm-2021-04-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 tlb updates from Ingo Molnar:
"The x86 MM changes in this cycle were:
- Implement concurrent TLB flushes, which overlaps the local TLB
flush with the remote TLB flush.
In testing this improved sysbench performance measurably by a
couple of percentage points, especially if TLB-heavy security
mitigations are active.
- Further micro-optimizations to improve the performance of TLB
flushes"
* tag 'x86-mm-2021-04-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
smp: Micro-optimize smp_call_function_many_cond()
smp: Inline on_each_cpu_cond() and on_each_cpu()
x86/mm/tlb: Remove unnecessary uses of the inline keyword
cpumask: Mark functions as pure
x86/mm/tlb: Do not make is_lazy dirty for no reason
x86/mm/tlb: Privatize cpu_tlbstate
x86/mm/tlb: Flush remote and local TLBs concurrently
x86/mm/tlb: Open-code on_each_cpu_cond_mask() for tlb_is_not_lazy()
x86/mm/tlb: Unify flush_tlb_func_local() and flush_tlb_func_remote()
smp: Run functions concurrently in smp_call_function_many_cond()
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Linus Torvalds
|
d72cd4ad41 |
SCSI misc on 20210428
This series consists of the usual driver updates (ufs, target, tcmu, smartpqi, lpfc, zfcp, qla2xxx, mpt3sas, pm80xx). The major core change is using a sbitmap instead of an atomic for queue tracking. Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com> -----BEGIN PGP SIGNATURE----- iJwEABMIAEQWIQTnYEDbdso9F2cI+arnQslM7pishQUCYInvqCYcamFtZXMuYm90 dG9tbGV5QGhhbnNlbnBhcnRuZXJzaGlwLmNvbQAKCRDnQslM7pishYh2AP0SgqqL WYZRT2oiyBOKD28v+ceOSiXvgjPlqABwVMC0BAEAn29/wNCxyvzZ1k/b0iPJ4M+S klkSxLzXKQLzJBgdK5w= =p5B/ -----END PGP SIGNATURE----- Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi Pull SCSI updates from James Bottomley: "This consists of the usual driver updates (ufs, target, tcmu, smartpqi, lpfc, zfcp, qla2xxx, mpt3sas, pm80xx). The major core change is using a sbitmap instead of an atomic for queue tracking" * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (412 commits) scsi: target: tcm_fc: Fix a kernel-doc header scsi: target: Shorten ALUA error messages scsi: target: Fix two format specifiers scsi: target: Compare explicitly with SAM_STAT_GOOD scsi: sd: Introduce a new local variable in sd_check_events() scsi: dc395x: Open-code status_byte(u8) calls scsi: 53c700: Open-code status_byte(u8) calls scsi: smartpqi: Remove unused functions scsi: qla4xxx: Remove an unused function scsi: myrs: Remove unused functions scsi: myrb: Remove unused functions scsi: mpt3sas: Fix two kernel-doc headers scsi: fcoe: Suppress a compiler warning scsi: libfc: Fix a format specifier scsi: aacraid: Remove an unused function scsi: core: Introduce enum scsi_disposition scsi: core: Modify the scsi_send_eh_cmnd() return value for the SDEV_BLOCK case scsi: core: Rename scsi_softirq_done() into scsi_complete() scsi: core: Remove an incorrect comment scsi: core: Make the scsi_alloc_sgtables() documentation more accurate ... |
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Linus Torvalds
|
625434dafd |
for-5.13/io_uring-2021-04-27
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Linus Torvalds
|
6c00292113 |
for-5.13/block-2021-04-27
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Merge tag 'for-5.13/block-2021-04-27' of git://git.kernel.dk/linux-block
Pull block updates from Jens Axboe:
"Pretty quiet round this time, which is nice. In detail:
- Series revamping bounce buffer support (Christoph)
- Dead code removal (Christoph, Bart)
- Partition iteration revamp, now using xarray (Christoph)
- Passthrough request scheduler improvements (Lin)
- Series of BFQ improvements (Paolo)
- Fix ioprio task iteration (Peter)
- Various little tweaks and fixes (Tejun, Saravanan, Bhaskar, Max,
Nikolay)"
* tag 'for-5.13/block-2021-04-27' of git://git.kernel.dk/linux-block: (41 commits)
blk-iocost: don't ignore vrate_min on QD contention
blk-mq: Fix spurious debugfs directory creation during initialization
bfq/mq-deadline: remove redundant check for passthrough request
blk-mq: bypass IO scheduler's limit_depth for passthrough request
block: Remove an obsolete comment from sg_io()
block: move bio_list_copy_data to pktcdvd
block: remove zero_fill_bio_iter
block: add queue_to_disk() to get gendisk from request_queue
block: remove an incorrect check from blk_rq_append_bio
block: initialize ret in bdev_disk_changed
block: Fix sys_ioprio_set(.which=IOPRIO_WHO_PGRP) task iteration
block: remove disk_part_iter
block: simplify diskstats_show
block: simplify show_partition
block: simplify printk_all_partitions
block: simplify partition_overlaps
block: simplify partition removal
block: take bd_mutex around delete_partitions in del_gendisk
block: refactor blk_drop_partitions
block: move more syncing and invalidation to delete_partition
...
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Linus Torvalds
|
9a45da9270 |
RCU changes for this cycle were:
- Bitmap support for "N" as alias for last bit - kvfree_rcu updates - mm_dump_obj() updates. (One of these is to mm, but was suggested by Andrew Morton.) - RCU callback offloading update - Polling RCU grace-period interfaces - Realtime-related RCU updates - Tasks-RCU updates - Torture-test updates - Torture-test scripting updates - Miscellaneous fixes Signed-off-by: Ingo Molnar <mingo@kernel.org> -----BEGIN PGP SIGNATURE----- iQJFBAABCgAvFiEEBpT5eoXrXCwVQwEKEnMQ0APhK1gFAmCJCZERHG1pbmdvQGtl cm5lbC5vcmcACgkQEnMQ0APhK1hRjw/+Jkb9KvR9odPt/zqN/KPtIlburCUWgsFb 2zAlWN4uMocPAiXT2Xq58/8gqMkpyn7ZVZtL1tD8fZSvlwEr0U8Z74+/NdoQvYE+ kMXIYIuhIAGRyAupmzkriqN33iY+BSZPacX3u6ziPj57/0OZzbWVN/DAhbuvyLqG J/oL4PHCa7XAqXbf95rd5Zjs680QJ3CbTRh4nA8uHArzJmKZOaaHJ05Pxd1LpULe SJ+5p1GQnnwxd1HqmlHMDu/dW+2hE35BGykF8zi78je9OJXualDoM/6JpIYGhMNY 5qlhU55QYP1jzjuNGVZZUS4L77eS2/W7SpPAaTmMEy/SsVB59G8Kf22oNDpVaEqQ m+2ErqwaHvlkMjqnsx+JQbsOP0yCi2NZBoEPFdfk1H23E2deVlSDbxPso4Zb1oUD E12769kN+SWDytuLSOAe1PY/KXqmNUKjPZl1GDCGXL7HlCnWyggUDschTsKJa19O XXl+yCTGMUH4XAPSqavAKQbBjurqpT6i4zfooSH4TBtOHm1ExgZOUS8gglZ1JuJd q+uJdZIgS8BcGkGw/k1bYDWY5TA4Rjv3sAOKQL1PgYBl1t/yLK441mE7LI9gWOwz Crz7vlSxD6Jc2cYQeUVW0KPGt5aVd63Gd9HjpXxGkqYQSDRqYMCebHEAGagz+jj7 Nv/nOnf34Uc= =mpNt -----END PGP SIGNATURE----- Merge tag 'core-rcu-2021-04-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull RCU updates from Ingo Molnar: - Support for "N" as alias for last bit in bitmap parsing library (eg using syntax like "nohz_full=2-N") - kvfree_rcu updates - mm_dump_obj() updates. (One of these is to mm, but was suggested by Andrew Morton.) - RCU callback offloading update - Polling RCU grace-period interfaces - Realtime-related RCU updates - Tasks-RCU updates - Torture-test updates - Torture-test scripting updates - Miscellaneous fixes * tag 'core-rcu-2021-04-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (77 commits) rcutorture: Test start_poll_synchronize_rcu() and poll_state_synchronize_rcu() rcu: Provide polling interfaces for Tiny RCU grace periods torture: Fix kvm.sh --datestamp regex check torture: Consolidate qemu-cmd duration editing into kvm-transform.sh torture: Print proper vmlinux path for kvm-again.sh runs torture: Make TORTURE_TRUST_MAKE available in kvm-again.sh environment torture: Make kvm-transform.sh update jitter commands torture: Add --duration argument to kvm-again.sh torture: Add kvm-again.sh to rerun a previous torture-test torture: Create a "batches" file for build reuse torture: De-capitalize TORTURE_SUITE torture: Make upper-case-only no-dot no-slash scenario names official torture: Rename SRCU-t and SRCU-u to avoid lowercase characters torture: Remove no-mpstat error message torture: Record kvm-test-1-run.sh and kvm-test-1-run-qemu.sh PIDs torture: Record jitter start/stop commands torture: Extract kvm-test-1-run-qemu.sh from kvm-test-1-run.sh torture: Record TORTURE_KCONFIG_GDB_ARG in qemu-cmd torture: Abstract jitter.sh start/stop into scripts rcu: Provide polling interfaces for Tree RCU grace periods ... |
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Linus Torvalds
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fafe1e39ed |
AFS: Use the new netfs lib
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Merge tag 'afs-netfs-lib-20210426' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs
Pull AFS updates from David Howells:
"Use the new netfs lib.
Begin the process of overhauling the use of the fscache API by AFS and
the introduction of support for features such as Transparent Huge
Pages (THPs).
- Add some support for THPs, including using core VM helper functions
to find details of pages.
- Use the ITER_XARRAY I/O iterator to mediate access to the pagecache
as this handles THPs and doesn't require allocation of large bvec
arrays.
- Delegate address_space read/pre-write I/O methods for AFS to the
netfs helper library. A method is provided to the library that
allows it to issue a read against the server.
This includes a change in use for PG_fscache (it now indicates a
DIO write in progress from the marked page), so a number of waits
need to be deployed for it.
- Split the core AFS writeback function to make it easier to modify
in future patches to handle writing to the cache. [This might
feasibly make more sense moved out into my fscache-iter branch].
I've tested these with "xfstests -g quick" against an AFS volume
(xfstests needs patching to make it work). With this, AFS without a
cache passes all expected xfstests; with a cache, there's an extra
failure, but that's also there before these patches. Fixing that
probably requires a greater overhaul (as can be found on my
fscache-iter branch, but that's for a later time).
Thanks should go to Marc Dionne and Jeff Altman of AuriStor for
exercising the patches in their test farm also"
Link: https://lore.kernel.org/lkml/3785063.1619482429@warthog.procyon.org.uk/
* tag 'afs-netfs-lib-20210426' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs:
afs: Use the netfs_write_begin() helper
afs: Use new netfs lib read helper API
afs: Use the fs operation ops to handle FetchData completion
afs: Prepare for use of THPs
afs: Extract writeback extension into its own function
afs: Wait on PG_fscache before modifying/releasing a page
afs: Use ITER_XARRAY for writing
afs: Set up the iov_iter before calling afs_extract_data()
afs: Log remote unmarshalling errors
afs: Don't truncate iter during data fetch
afs: Move key to afs_read struct
afs: Print the operation debug_id when logging an unexpected data version
afs: Pass page into dirty region helpers to provide THP size
afs: Disable use of the fscache I/O routines
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Linus Torvalds
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820c4bae40 |
Network filesystem helper library
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Merge tag 'netfs-lib-20210426' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs
Pull network filesystem helper library updates from David Howells:
"Here's a set of patches for 5.13 to begin the process of overhauling
the local caching API for network filesystems. This set consists of
two parts:
(1) Add a helper library to handle the new VM readahead interface.
This is intended to be used unconditionally by the filesystem
(whether or not caching is enabled) and provides a common
framework for doing caching, transparent huge pages and, in the
future, possibly fscrypt and read bandwidth maximisation. It also
allows the netfs and the cache to align, expand and slice up a
read request from the VM in various ways; the netfs need only
provide a function to read a stretch of data to the pagecache and
the helper takes care of the rest.
(2) Add an alternative fscache/cachfiles I/O API that uses the kiocb
facility to do async DIO to transfer data to/from the netfs's
pages, rather than using readpage with wait queue snooping on one
side and vfs_write() on the other. It also uses less memory, since
it doesn't do buffered I/O on the backing file.
Note that this uses SEEK_HOLE/SEEK_DATA to locate the data
available to be read from the cache. Whilst this is an improvement
from the bmap interface, it still has a problem with regard to a
modern extent-based filesystem inserting or removing bridging
blocks of zeros. Fixing that requires a much greater overhaul.
This is a step towards overhauling the fscache API. The change is
opt-in on the part of the network filesystem. A netfs should not try
to mix the old and the new API because of conflicting ways of handling
pages and the PG_fscache page flag and because it would be mixing DIO
with buffered I/O. Further, the helper library can't be used with the
old API.
This does not change any of the fscache cookie handling APIs or the
way invalidation is done at this time.
In the near term, I intend to deprecate and remove the old I/O API
(fscache_allocate_page{,s}(), fscache_read_or_alloc_page{,s}(),
fscache_write_page() and fscache_uncache_page()) and eventually
replace most of fscache/cachefiles with something simpler and easier
to follow.
This patchset contains the following parts:
- Some helper patches, including provision of an ITER_XARRAY iov
iterator and a function to do readahead expansion.
- Patches to add the netfs helper library.
- A patch to add the fscache/cachefiles kiocb API.
- A pair of patches to fix some review issues in the ITER_XARRAY and
read helpers as spotted by Al and Willy.
Jeff Layton has patches to add support in Ceph for this that he
intends for this merge window. I have a set of patches to support AFS
that I will post a separate pull request for.
With this, AFS without a cache passes all expected xfstests; with a
cache, there's an extra failure, but that's also there before these
patches. Fixing that probably requires a greater overhaul. Ceph also
passes the expected tests.
I also have patches in a separate branch to tidy up the handling of
PG_fscache/PG_private_2 and their contribution to page refcounting in
the core kernel here, but I haven't included them in this set and will
route them separately"
Link: https://lore.kernel.org/lkml/3779937.1619478404@warthog.procyon.org.uk/
* tag 'netfs-lib-20210426' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs:
netfs: Miscellaneous fixes
iov_iter: Four fixes for ITER_XARRAY
fscache, cachefiles: Add alternate API to use kiocb for read/write to cache
netfs: Add a tracepoint to log failures that would be otherwise unseen
netfs: Define an interface to talk to a cache
netfs: Add write_begin helper
netfs: Gather stats
netfs: Add tracepoints
netfs: Provide readahead and readpage netfs helpers
netfs, mm: Add set/end/wait_on_page_fscache() aliases
netfs, mm: Move PG_fscache helper funcs to linux/netfs.h
netfs: Documentation for helper library
netfs: Make a netfs helper module
mm: Implement readahead_control pageset expansion
mm/readahead: Handle ractl nr_pages being modified
fs: Document file_ra_state
mm/filemap: Pass the file_ra_state in the ractl
mm: Add set/end/wait functions for PG_private_2
iov_iter: Add ITER_XARRAY
|
||
|
Linus Torvalds
|
55ba0fe059 |
for-5.13-tag
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Merge tag 'for-5.13-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs updates from David Sterba:
"The updates this time are mostly stabilization, preparation and minor
improvements.
User visible improvements:
- readahead for send, improving run time of full send by 10% and for
incremental by 25%
- make reflinks respect O_SYNC, O_DSYNC and S_SYNC flags
- export supported sectorsize values in sysfs (currently only page
size, more once full subpage support lands)
- more graceful errors and warnings on 32bit systems when logical
addresses for metadata reach the limit posed by unsigned long in
page::index
- error: fail mount if there's a metadata block beyond the limit
- error: new metadata block would be at unreachable address
- warn when 5/8th of the limit is reached, for 4K page systems
it's 10T, for 64K page it's 160T
- zoned mode
- relocated zones get reset at the end instead of discard
- automatic background reclaim of zones that have 75%+ of unusable
space, the threshold is tunable in sysfs
Fixes:
- fsync and tree mod log fixes
- fix inefficient preemptive reclaim calculations
- fix exhaustion of the system chunk array due to concurrent
allocations
- fix fallback to no compression when racing with remount
- preemptive fix for dm-crypt on zoned device that does not properly
advertise zoned support
Core changes:
- add inode lock to synchronize mmap and other block updates (eg.
deduplication, fallocate, fsync)
- kmap conversions to new kmap_local API
- subpage support (continued)
- new helpers for page state/extent buffer tracking
- metadata changes now support read and write
- error handling through out relocation call paths
- many other cleanups and code simplifications"
* tag 'for-5.13-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: (112 commits)
btrfs: zoned: automatically reclaim zones
btrfs: rename delete_unused_bgs_mutex to reclaim_bgs_lock
btrfs: zoned: reset zones of relocated block groups
btrfs: more graceful errors/warnings on 32bit systems when reaching limits
btrfs: zoned: fix unpaired block group unfreeze during device replace
btrfs: fix race when picking most recent mod log operation for an old root
btrfs: fix metadata extent leak after failure to create subvolume
btrfs: handle remount to no compress during compression
btrfs: zoned: fail mount if the device does not support zone append
btrfs: fix race between transaction aborts and fsyncs leading to use-after-free
btrfs: introduce submit_eb_subpage() to submit a subpage metadata page
btrfs: make lock_extent_buffer_for_io() to be subpage compatible
btrfs: introduce write_one_subpage_eb() function
btrfs: introduce end_bio_subpage_eb_writepage() function
btrfs: check return value of btrfs_commit_transaction in relocation
btrfs: do proper error handling in merge_reloc_roots
btrfs: handle extent corruption with select_one_root properly
btrfs: cleanup error handling in prepare_to_merge
btrfs: do not panic in __add_reloc_root
btrfs: handle __add_reloc_root failures in btrfs_recover_relocation
...
|
||
|
Linus Torvalds
|
c065c42966 |
Highlights:
- Update NFSv2 and NFSv3 XDR encoding functions - Add batch Receive posting to the server's RPC/RDMA transport (take 2) - Reduce page allocator traffic in svcrdma -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEKLLlsBKG3yQ88j7+M2qzM29mf5cFAmBzLCIACgkQM2qzM29m f5evWA//fE2WlZDoTP8Iq1BGreGrGyzqOIkJakDGoZs4VOaUJN9WxWEcmBHI4t22 yom7aZ7S7VtMF6SoGMnohYoNwkloPJ1kfYBVZuUxDUCIHGVrLaAGZwjtojQftUS0 19ZdiSx8D8xWEqI/cpbHsj+CNCH1F5IDGjJzNhlz+rIFLrRPBMeHwbY8qf/zusm/ uZ4tGJtKWmFXvdT9duGkoNXRd0gBdcfDeFN//JYrLPS9sX4zs4/2KnDh25YJR8Jf EQryc19l4ztlVT8PXJfI4I/fG0Sfv5AWuYYzaFIncp1PkmiunqGL1yai6eeW4LEN 8v3QEUNy9J7J20FrsL1ge1icbEyObfNFvkgYqNhmGIBdbEDdLWPppL6fQKUYl/zi HSnAoJsJYyzYKbE7BMLy3wwZ775GsTrkU/7tfiu/M9KgvXJtDy0m7vsxt3/qULXn Bg4KAKnmYIcuigdG6BATJ23jISRK7cHH/YYlORj3lsB/KQi+c2U/5zQFaROOwbtc Ny+y92zQZVu9ZMkUfs2+b5qdg8Z/J0p8n9MfS7GcpCIyGZTnvfs8SfM8BXuHH2Yn BdL3xDoPlbYQnAzp16oVfdoYm8RWzFBv+xHc360ielMOQbP4ntdC0oexIApsXzyz Yv4OK9itsLagwcuAxPWnfnIgGxj9hPsp/peUsChsglhx+4NSGWA= =BOO0 -----END PGP SIGNATURE----- Merge tag 'nfsd-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux Pull nfsd updates from Chuck Lever: "Highlights: - Update NFSv2 and NFSv3 XDR encoding functions - Add batch Receive posting to the server's RPC/RDMA transport (take 2) - Reduce page allocator traffic in svcrdma" * tag 'nfsd-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux: (70 commits) NFSD: Use DEFINE_SPINLOCK() for spinlock sunrpc: Remove unused function ip_map_lookup NFSv4.2: fix copy stateid copying for the async copy UAPI: nfsfh.h: Replace one-element array with flexible-array member svcrdma: Clean up dto_q critical section in svc_rdma_recvfrom() svcrdma: Remove svc_rdma_recv_ctxt::rc_pages and ::rc_arg svcrdma: Remove sc_read_complete_q svcrdma: Single-stage RDMA Read SUNRPC: Move svc_xprt_received() call sites SUNRPC: Export svc_xprt_received() svcrdma: Retain the page backing rq_res.head[0].iov_base svcrdma: Remove unused sc_pages field svcrdma: Normalize Send page handling svcrdma: Add a "deferred close" helper svcrdma: Maintain a Receive water mark svcrdma: Use svc_rdma_refresh_recvs() in wc_receive svcrdma: Add a batch Receive posting mechanism svcrdma: Remove stale comment for svc_rdma_wc_receive() svcrdma: Provide an explanatory comment in CMA event handler svcrdma: RPCDBG_FACILITY is no longer used ... |
||
|
Linus Torvalds
|
a4a78bc8ea |
Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto updates from Herbert Xu: "API: - crypto_destroy_tfm now ignores errors as well as NULL pointers Algorithms: - Add explicit curve IDs in ECDH algorithm names - Add NIST P384 curve parameters - Add ECDSA Drivers: - Add support for Green Sardine in ccp - Add ecdh/curve25519 to hisilicon/hpre - Add support for AM64 in sa2ul" * 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (184 commits) fsverity: relax build time dependency on CRYPTO_SHA256 fscrypt: relax Kconfig dependencies for crypto API algorithms crypto: camellia - drop duplicate "depends on CRYPTO" crypto: s5p-sss - consistently use local 'dev' variable in probe() crypto: s5p-sss - remove unneeded local variable initialization crypto: s5p-sss - simplify getting of_device_id match data ccp: ccp - add support for Green Sardine crypto: ccp - Make ccp_dev_suspend and ccp_dev_resume void functions crypto: octeontx2 - add support for OcteonTX2 98xx CPT block. crypto: chelsio/chcr - Remove useless MODULE_VERSION crypto: ux500/cryp - Remove duplicate argument crypto: chelsio - remove unused function crypto: sa2ul - Add support for AM64 crypto: sa2ul - Support for per channel coherency dt-bindings: crypto: ti,sa2ul: Add new compatible for AM64 crypto: hisilicon - enable new error types for QM crypto: hisilicon - add new error type for SEC crypto: hisilicon - support new error types for ZIP crypto: hisilicon - dynamic configuration 'err_info' crypto: doc - fix kernel-doc notation in chacha.c and af_alg.c ... |
||
David Howells
|
bd80d8a80e |
afs: Use ITER_XARRAY for writing
Use a single ITER_XARRAY iterator to describe the portion of a file to be transmitted to the server rather than generating a series of small ITER_BVEC iterators on the fly. This will make it easier to implement AIO in afs. In theory we could maybe use one giant ITER_BVEC, but that means potentially allocating a huge array of bio_vec structs (max 256 per page) when in fact the pagecache already has a structure listing all the relevant pages (radix_tree/xarray) that can be walked over. Signed-off-by: David Howells <dhowells@redhat.com> Tested-By: Marc Dionne <marc.dionne@auristor.com> cc: linux-afs@lists.infradead.org cc: linux-cachefs@redhat.com cc: linux-fsdevel@vger.kernel.org Link: https://lore.kernel.org/r/153685395197.14766.16289516750731233933.stgit@warthog.procyon.org.uk/ Link: https://lore.kernel.org/r/158861251312.340223.17924900795425422532.stgit@warthog.procyon.org.uk/ # rfc Link: https://lore.kernel.org/r/159465828607.1377938.6903132788463419368.stgit@warthog.procyon.org.uk/ Link: https://lore.kernel.org/r/160588535018.3465195.14509994354240338307.stgit@warthog.procyon.org.uk/ # rfc Link: https://lore.kernel.org/r/161118152415.1232039.6452879415814850025.stgit@warthog.procyon.org.uk/ # rfc Link: https://lore.kernel.org/r/161161048194.2537118.13763612220937637316.stgit@warthog.procyon.org.uk/ # v2 Link: https://lore.kernel.org/r/161340411602.1303470.4661108879482218408.stgit@warthog.procyon.org.uk/ # v3 Link: https://lore.kernel.org/r/161539555629.286939.5241869986617154517.stgit@warthog.procyon.org.uk/ # v4 Link: https://lore.kernel.org/r/161653811456.2770958.7017388543246759245.stgit@warthog.procyon.org.uk/ # v5 Link: https://lore.kernel.org/r/161789095005.6155.6789055030327407928.stgit@warthog.procyon.org.uk/ # v6 |
||
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David Howells
|
67d78a6f6e |
afs: Pass page into dirty region helpers to provide THP size
Pass a pointer to the page being accessed into the dirty region helpers so that the size of the page can be determined in case it's a transparent huge page. This also required the page to be passed into the afs_page_dirty trace point - so there's no need to specifically pass in the index or private data as these can be retrieved directly from the page struct. Signed-off-by: David Howells <dhowells@redhat.com> Tested-By: Marc Dionne <marc.dionne@auristor.com> cc: linux-afs@lists.infradead.org cc: linux-cachefs@redhat.com cc: linux-fsdevel@vger.kernel.org Link: https://lore.kernel.org/r/160588527183.3465195.16107942526481976308.stgit@warthog.procyon.org.uk/ # rfc Link: https://lore.kernel.org/r/161118144921.1232039.11377711180492625929.stgit@warthog.procyon.org.uk/ # rfc Link: https://lore.kernel.org/r/161161040747.2537118.11435394902674511430.stgit@warthog.procyon.org.uk/ # v2 Link: https://lore.kernel.org/r/161340404553.1303470.11414163641767769882.stgit@warthog.procyon.org.uk/ # v3 Link: https://lore.kernel.org/r/161539548385.286939.8864598314493255313.stgit@warthog.procyon.org.uk/ # v4 Link: https://lore.kernel.org/r/161653804285.2770958.3497360004849598038.stgit@warthog.procyon.org.uk/ # v5 Link: https://lore.kernel.org/r/161789087043.6155.16922142208140170528.stgit@warthog.procyon.org.uk/ # v6 |
||
|
David Howells
|
0246f3e573 |
netfs: Add a tracepoint to log failures that would be otherwise unseen
Add a tracepoint to log internal failures (such as cache errors) that we don't otherwise want to pass back to the netfs. Signed-off-by: David Howells <dhowells@redhat.com> Tested-by: Jeff Layton <jlayton@kernel.org> Tested-by: Dave Wysochanski <dwysocha@redhat.com> Tested-By: Marc Dionne <marc.dionne@auristor.com> cc: Matthew Wilcox <willy@infradead.org> cc: linux-mm@kvack.org cc: linux-cachefs@redhat.com cc: linux-afs@lists.infradead.org cc: linux-nfs@vger.kernel.org cc: linux-cifs@vger.kernel.org cc: ceph-devel@vger.kernel.org cc: v9fs-developer@lists.sourceforge.net cc: linux-fsdevel@vger.kernel.org Link: https://lore.kernel.org/r/161781048813.463527.1557000804674707986.stgit@warthog.procyon.org.uk/ Link: https://lore.kernel.org/r/161789082749.6155.15498680577213140870.stgit@warthog.procyon.org.uk/ # v6 |
||
|
David Howells
|
726218fdc2 |
netfs: Define an interface to talk to a cache
Add an interface to the netfs helper library for reading data from the cache instead of downloading it from the server and support for writing data just downloaded or cleared to the cache. The API passes an iov_iter to the cache read/write routines to indicate the data/buffer to be used. This is done using the ITER_XARRAY type to provide direct access to the netfs inode's pagecache. When the netfs's ->begin_cache_operation() method is called, this must fill in the cache_resources in the netfs_read_request struct, including the netfs_cache_ops used by the helper lib to talk to the cache. The helper lib does not directly access the cache. Changes: v6: - Call trace_netfs_read() after beginning the cache op so that the cookie debug ID can be logged[3]. - Don't record the error from writing to the cache. We don't want to pass it back to the netfs[4]. - Fix copy-to-cache subreq amalgamation to not round up as it goes along otherwise it overcalculates the length of the write[5]. v5: - Use end_page_fscache() rather than unlock_page_fscache()[2]. v4: - Added flag to netfs_subreq_terminated() to indicate that the caller may have been running async and stuff that might sleep needs punting to a workqueue (can't use in_softirq()[1]). - Add missing inc of netfs_n_rh_read stat. - Move initial definition of fscache_begin_read_operation() elsewhere. - Need to call op->begin_cache_operation() from netfs_write_begin(). Signed-off-by: David Howells <dhowells@redhat.com> Reviewed-and-tested-by: Jeff Layton <jlayton@kernel.org> Tested-by: Dave Wysochanski <dwysocha@redhat.com> Tested-By: Marc Dionne <marc.dionne@auristor.com> cc: Matthew Wilcox <willy@infradead.org> cc: linux-mm@kvack.org cc: linux-cachefs@redhat.com cc: linux-afs@lists.infradead.org cc: linux-nfs@vger.kernel.org cc: linux-cifs@vger.kernel.org cc: ceph-devel@vger.kernel.org cc: v9fs-developer@lists.sourceforge.net cc: linux-fsdevel@vger.kernel.org Link: https://lore.kernel.org/r/20210216084230.GA23669@lst.de/ [1] Link: https://lore.kernel.org/r/2499407.1616505440@warthog.procyon.org.uk/ [2] Link: https://lore.kernel.org/r/161781045123.463527.14533348855710902201.stgit@warthog.procyon.org.uk/ [3] Link: https://lore.kernel.org/r/161781046256.463527.18158681600085556192.stgit@warthog.procyon.org.uk/ [4] Link: https://lore.kernel.org/r/161781047695.463527.7463536103593997492.stgit@warthog.procyon.org.uk/ [5] Link: https://lore.kernel.org/r/161118141321.1232039.8296910406755622458.stgit@warthog.procyon.org.uk/ # rfc Link: https://lore.kernel.org/r/161161036700.2537118.11170748455436854978.stgit@warthog.procyon.org.uk/ # v2 Link: https://lore.kernel.org/r/161340399569.1303470.1138884774643385730.stgit@warthog.procyon.org.uk/ # v3 Link: https://lore.kernel.org/r/161539542874.286939.13337898213448136687.stgit@warthog.procyon.org.uk/ # v4 Link: https://lore.kernel.org/r/161653799826.2770958.9015430297426331950.stgit@warthog.procyon.org.uk/ # v5 Link: https://lore.kernel.org/r/161789081462.6155.3853904866933313256.stgit@warthog.procyon.org.uk/ # v6 |
||
|
David Howells
|
e1b1240c1f |
netfs: Add write_begin helper
Add a helper to do the pre-reading work for the netfs write_begin address space op. Changes v6: - Fixed a missing rreq put in netfs_write_begin()[3]. - Use DEFINE_READAHEAD()[4]. v5: - Made the wait for PG_fscache in netfs_write_begin() killable[2]. v4: - Added flag to netfs_subreq_terminated() to indicate that the caller may have been running async and stuff that might sleep needs punting to a workqueue (can't use in_softirq()[1]). Signed-off-by: David Howells <dhowells@redhat.com> Reviewed-and-tested-by: Jeff Layton <jlayton@kernel.org> Tested-by: Dave Wysochanski <dwysocha@redhat.com> Tested-By: Marc Dionne <marc.dionne@auristor.com> cc: Matthew Wilcox <willy@infradead.org> cc: linux-mm@kvack.org cc: linux-cachefs@redhat.com cc: linux-afs@lists.infradead.org cc: linux-nfs@vger.kernel.org cc: linux-cifs@vger.kernel.org cc: ceph-devel@vger.kernel.org cc: v9fs-developer@lists.sourceforge.net cc: linux-fsdevel@vger.kernel.org Link: https://lore.kernel.org/r/20210216084230.GA23669@lst.de/ [1] Link: https://lore.kernel.org/r/2499407.1616505440@warthog.procyon.org.uk/ [2] Link: https://lore.kernel.org/r/161781042127.463527.9154479794406046987.stgit@warthog.procyon.org.uk/ [3] Link: https://lore.kernel.org/r/1234933.1617886271@warthog.procyon.org.uk/ [4] Link: https://lore.kernel.org/r/160588543960.3465195.2792938973035886168.stgit@warthog.procyon.org.uk/ # rfc Link: https://lore.kernel.org/r/161118140165.1232039.16418853874312234477.stgit@warthog.procyon.org.uk/ # rfc Link: https://lore.kernel.org/r/161161035539.2537118.15674887534950908530.stgit@warthog.procyon.org.uk/ # v2 Link: https://lore.kernel.org/r/161340398368.1303470.11242918276563276090.stgit@warthog.procyon.org.uk/ # v3 Link: https://lore.kernel.org/r/161539541541.286939.1889738674057013729.stgit@warthog.procyon.org.uk/ # v4 Link: https://lore.kernel.org/r/161653798616.2770958.17213315845968485563.stgit@warthog.procyon.org.uk/ # v5 Link: https://lore.kernel.org/r/161789080530.6155.1011847312392330491.stgit@warthog.procyon.org.uk/ # v6 |
||
|
David Howells
|
77b4d2c631 |
netfs: Add tracepoints
Add three tracepoints to track the activity of the read helpers:
(1) netfs/netfs_read
This logs entry to the read helpers and also expansion of the range in
a readahead request.
(2) netfs/netfs_rreq
This logs the progress of netfs_read_request objects which track
read requests. A read request may be a compound of multiple
subrequests.
(3) netfs/netfs_sreq
This logs the progress of netfs_read_subrequest objects, which track
the contributions from various sources to a read request.
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-and-tested-by: Jeff Layton <jlayton@kernel.org>
Tested-by: Dave Wysochanski <dwysocha@redhat.com>
Tested-By: Marc Dionne <marc.dionne@auristor.com>
cc: Matthew Wilcox <willy@infradead.org>
cc: linux-mm@kvack.org
cc: linux-cachefs@redhat.com
cc: linux-afs@lists.infradead.org
cc: linux-nfs@vger.kernel.org
cc: linux-cifs@vger.kernel.org
cc: ceph-devel@vger.kernel.org
cc: v9fs-developer@lists.sourceforge.net
cc: linux-fsdevel@vger.kernel.org
Link: https://lore.kernel.org/r/161118138060.1232039.5353374588021776217.stgit@warthog.procyon.org.uk/ # rfc
Link: https://lore.kernel.org/r/161161033468.2537118.14021843889844001905.stgit@warthog.procyon.org.uk/ # v2
Link: https://lore.kernel.org/r/161340395843.1303470.7355519662919639648.stgit@warthog.procyon.org.uk/ # v3
Link: https://lore.kernel.org/r/161539538693.286939.10171713520419106334.stgit@warthog.procyon.org.uk/ # v4
Link: https://lore.kernel.org/r/161653796447.2770958.1870655382450862155.stgit@warthog.procyon.org.uk/ # v5
Link: https://lore.kernel.org/r/161789078003.6155.17814844411672989942.stgit@warthog.procyon.org.uk/ # v6
|
||
Johannes Thumshirn
|
18bb8bbf13 |
btrfs: zoned: automatically reclaim zones
When a file gets deleted on a zoned file system, the space freed is not returned back into the block group's free space, but is migrated to zone_unusable. As this zone_unusable space is behind the current write pointer it is not possible to use it for new allocations. In the current implementation a zone is reset once all of the block group's space is accounted as zone unusable. This behaviour can lead to premature ENOSPC errors on a busy file system. Instead of only reclaiming the zone once it is completely unusable, kick off a reclaim job once the amount of unusable bytes exceeds a user configurable threshold between 51% and 100%. It can be set per mounted filesystem via the sysfs tunable bg_reclaim_threshold which is set to 75% by default. Similar to reclaiming unused block groups, these dirty block groups are added to a to_reclaim list and then on a transaction commit, the reclaim process is triggered but after we deleted unused block groups, which will free space for the relocation process. Reviewed-by: Filipe Manana <fdmanana@suse.com> Signed-off-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com> |
||
Jeffle Xu
|
907d523100 |
block: add queue_to_disk() to get gendisk from request_queue
Sometimes we need to get the corresponding gendisk from request_queue.
It is preferred that block drivers store private data in
gendisk->private_data rather than request_queue->queuedata, e.g. see:
commit
|
||
Jens Axboe
|
7471e1afab |
io_uring: include cflags in completion trace event
We should be including the completion flags for better introspection on exactly what completion event was logged. Signed-off-by: Jens Axboe <axboe@kernel.dk> |
||
Ingo Molnar
|
120b566d1d |
Merge branch 'for-mingo-rcu' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcu
Pull RCU changes from Paul E. McKenney: - Bitmap support for "N" as alias for last bit - kvfree_rcu updates - mm_dump_obj() updates. (One of these is to mm, but was suggested by Andrew Morton.) - RCU callback offloading update - Polling RCU grace-period interfaces - Realtime-related RCU updates - Tasks-RCU updates - Torture-test updates - Torture-test scripting updates - Miscellaneous fixes Signed-off-by: Ingo Molnar <mingo@kernel.org> |
||
Eric Biggers
|
118a4417e1 |
random: remove dead code left over from blocking pool
Remove some dead code that was left over following commit
|
||
Chuck Lever
|
7dcfbd86ad |
SUNRPC: Export svc_xprt_received()
Prepare svc_xprt_received() to be called from transport code instead of from generic RPC server code. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> |
||
Steven Rostedt (VMware)
|
83b62687a0 |
workqueue/tracing: Copy workqueue name to buffer in trace event
The trace event "workqueue_queue_work" references an unsafe string in
dereferencing the name of the workqueue. As the name is allocated, it
could later be freed, and the pointer to that string could stay on the
tracing buffer. If the trace buffer is read after the string is freed, it
will reference an unsafe pointer.
I added a new verifier to make sure that all strings referenced in the
output of the trace buffer is safe to read and this triggered on the
workqueue_queue_work trace event:
workqueue_queue_work: work struct=00000000b2b235c7 function=gc_worker workqueue=(0xffff888100051160:events_power_efficient)[UNSAFE-MEMORY] req_cpu=256 cpu=1
workqueue_queue_work: work struct=00000000c344caec function=flush_to_ldisc workqueue=(0xffff888100054d60:events_unbound)[UNSAFE-MEMORY] req_cpu=256 cpu=4294967295
workqueue_queue_work: work struct=00000000b2b235c7 function=gc_worker workqueue=(0xffff888100051160:events_power_efficient)[UNSAFE-MEMORY] req_cpu=256 cpu=1
workqueue_queue_work: work struct=000000000b238b3f function=vmstat_update workqueue=(0xffff8881000c3760:mm_percpu_wq)[UNSAFE-MEMORY] req_cpu=1 cpu=1
Also, if this event is read via a user space application like perf or
trace-cmd, the name would only be an address and useless information:
workqueue_queue_work: work struct=0xffff953f80b4b918 function=disk_events_workfn workqueue=ffff953f8005d378 req_cpu=8192 cpu=5
Cc: Zqiang <qiang.zhang@windriver.com>
Cc: Tejun Heo <tj@kernel.org>
Fixes:
|
||
Sangmoon Kim
|
565cfb9e64 |
rcu/tree: Add a trace event for RCU CPU stall warnings
This commit adds a trace event which allows tracing the beginnings of RCU CPU stall warnings on systems where sysctl_panic_on_rcu_stall is disabled. The first parameter is the name of RCU flavor like other trace events. The second parameter indicates whether this is a stall of an expedited grace period, a self-detected stall of a normal grace period, or a stall of a normal grace period detected by some CPU other than the one that is stalled. RCU CPU stall warnings are often caused by external-to-RCU issues, for example, in interrupt handling or task scheduling. Therefore, this event uses TRACE_EVENT, not TRACE_EVENT_RCU, to avoid requiring those interested in tracing RCU CPU stalls to rebuild their kernels with CONFIG_RCU_TRACE=y. Reviewed-by: Uladzislau Rezki (Sony) <urezki@gmail.com> Reviewed-by: Neeraj Upadhyay <neeraju@codeaurora.org> Signed-off-by: Sangmoon Kim <sangmoon.kim@samsung.com> Signed-off-by: Paul E. McKenney <paulmck@kernel.org> |
||
Nadav Amit
|
4ce94eabac |
x86/mm/tlb: Flush remote and local TLBs concurrently
To improve TLB shootdown performance, flush the remote and local TLBs concurrently. Introduce flush_tlb_multi() that does so. Introduce paravirtual versions of flush_tlb_multi() for KVM, Xen and hyper-v (Xen and hyper-v are only compile-tested). While the updated smp infrastructure is capable of running a function on a single local core, it is not optimized for this case. The multiple function calls and the indirect branch introduce some overhead, and might make local TLB flushes slower than they were before the recent changes. Before calling the SMP infrastructure, check if only a local TLB flush is needed to restore the lost performance in this common case. This requires to check mm_cpumask() one more time, but unless this mask is updated very frequently, this should impact performance negatively. Signed-off-by: Nadav Amit <namit@vmware.com> Signed-off-by: Ingo Molnar <mingo@kernel.org> Reviewed-by: Michael Kelley <mikelley@microsoft.com> # Hyper-v parts Reviewed-by: Juergen Gross <jgross@suse.com> # Xen and paravirt parts Reviewed-by: Dave Hansen <dave.hansen@linux.intel.com> Link: https://lore.kernel.org/r/20210220231712.2475218-5-namit@vmware.com |
||
Adrian Hunter
|
f7733625ec |
scsi: ufs: Add exception event tracepoint
Currently, exception event status can be read from wExceptionEventStatus
attribute (sysfs file attributes/exception_event_status under the UFS host
controller device directory). Polling that attribute to track UFS exception
events is impractical, so add a tracepoint to track exception events for
testing and debugging purposes.
Note, by the time the exception event status is read, the exception event
may have cleared, so the value can be zero - see example below.
Note also, only enabled exception events can be reported. A subsequent
patch adds the ability for users to enable selected exception events via
debugfs.
Example with driver instrumented to enable all exception events:
# echo 1 > /sys/kernel/debug/tracing/events/ufs/ufshcd_exception_event/enable
... do some I/O ...
# cat /sys/kernel/debug/tracing/trace
# tracer: nop
#
# entries-in-buffer/entries-written: 3/3 #P:5
#
# _-----=> irqs-off
# / _----=> need-resched
# | / _---=> hardirq/softirq
# || / _--=> preempt-depth
# ||| / delay
# TASK-PID CPU# |||| TIMESTAMP FUNCTION
# | | | |||| | |
kworker/2:2-173 [002] .... 731.486419: ufshcd_exception_event: 0000:00:12.5: status 0x0
kworker/2:2-173 [002] .... 732.608918: ufshcd_exception_event: 0000:00:12.5: status 0x4
kworker/2:2-173 [002] .... 732.609312: ufshcd_exception_event: 0000:00:12.5: status 0x4
Link: https://lore.kernel.org/r/20210209062437.6954-2-adrian.hunter@intel.com
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
|
||
|
Linus Torvalds
|
3ab6608e66 |
block-5.12-2021-02-27
-----BEGIN PGP SIGNATURE----- iQJEBAABCAAuFiEEwPw5LcreJtl1+l5K99NY+ylx4KYFAmA6njIQHGF4Ym9lQGtl cm5lbC5kawAKCRD301j7KXHgprolD/9zWti9LsZvA7yE+PhVwrwF3CsNzLfQlClw 99HaA7HxtAc/VLJrnD/SubhCAPdBC5B2xPv6faajdwF2iUR3Rr1Uc93CQ3uP2KKq kvm6ALTpzPTMI6YSABhY74sg9BkkoDbMo54JQYVQPleiE+5eDLbuFZck6ObfUHyY a4aaImlndWp/t14GzrClL4hucF+5KJy846P+QCVclkh0yl8xSsqZ5LIFU7tu3iQb HpZ5HKLT/2ma/EOr3wknnsIe97AUZQU0q5aMparhYlm+qR511eop3QXx850FL/oC tEGceKLij6qazmkiocKVzML8Fs+Y9/a4vCMjLCScWJmzDlmKdlH2uudeahN6b9Hm 15qRQHOjl1Hc2bdr5ZVn87nq9RWhSm18C+SRMwOKHCOnEhwxqM3RjRfAgj4BJ6QB PFbFqdY+8Y1YLPFmn9hph72ePaEcN4L2IXW6TI/WX8mot8ODAnkq9Hr38dKwzO+i 0mon6DVyJKKho6XwvVu5IYurkR2beQprjeVUxwZjjT6DxUgsc+J6itK5LDHFSkeZ qZlXn5Di8MkiXg0DFJYDQiFXnO0Z5GlRWOGPVfBaOr3x+1dqzDdHGw4oz1oGqvnr GNNYCsYIpDGm7eauX5lqL5MUFpjqRCceXy5JSHPhnWWw617nYkr4H9jdsV9HiTX1 tQFx05QW3w== =ccMs -----END PGP SIGNATURE----- Merge tag 'block-5.12-2021-02-27' of git://git.kernel.dk/linux-block Pull more block updates from Jens Axboe: "A few stragglers (and one due to me missing it originally), and fixes for changes in this merge window mostly. In particular: - blktrace cleanups (Chaitanya, Greg) - Kill dead blk_pm_* functions (Bart) - Fixes for the bio alloc changes (Christoph) - Fix for the partition changes (Christoph, Ming) - Fix for turning off iopoll with polled IO inflight (Jeffle) - nbd disconnect fix (Josef) - loop fsync error fix (Mauricio) - kyber update depth fix (Yang) - max_sectors alignment fix (Mikulas) - Add bio_max_segs helper (Matthew)" * tag 'block-5.12-2021-02-27' of git://git.kernel.dk/linux-block: (21 commits) block: Add bio_max_segs blktrace: fix documentation for blk_fill_rw() block: memory allocations in bounce_clone_bio must not fail block: remove the gfp_mask argument to bounce_clone_bio block: fix bounce_clone_bio for passthrough bios block-crypto-fallback: use a bio_set for splitting bios block: fix logging on capacity change blk-settings: align max_sectors on "logical_block_size" boundary block: reopen the device in blkdev_reread_part block: don't skip empty device in in disk_uevent blktrace: remove debugfs file dentries from struct blk_trace nbd: handle device refs for DESTROY_ON_DISCONNECT properly kyber: introduce kyber_depth_updated() loop: fix I/O error on fsync() in detached loop devices block: fix potential IO hang when turning off io_poll block: get rid of the trace rq insert wrapper blktrace: fix blk_rq_merge documentation blktrace: fix blk_rq_issue documentation blktrace: add blk_fill_rwbs documentation comment block: remove superfluous param in blk_fill_rwbs() ... |
||
|
Linus Torvalds
|
8b1e2c50bc |
Tracing: Fixes for 5.12
Two fixes: - Fix an unsafe printf string usage in a kmem trace event - Fix spelling in output from the latency-collector tool -----BEGIN PGP SIGNATURE----- iIoEABYIADIWIQRRSw7ePDh/lE+zeZMp5XQQmuv6qgUCYDhhwBQccm9zdGVkdEBn b29kbWlzLm9yZwAKCRAp5XQQmuv6qtclAQCztNe2l9UrmkADtaJNHOcmujRvxi+9 j0ppoSe7uKI4zAD+JVG40IyxvprfxengjmwIdvihL+uuWL50ULmvozRdzQM= =8nVm -----END PGP SIGNATURE----- Merge tag 'trace-v5.12-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace Pull tracing fixes from Steven Rostedt: "Two fixes: - Fix an unsafe printf string usage in a kmem trace event - Fix spelling in output from the latency-collector tool" * tag 'trace-v5.12-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: tracing/tools: fix a couple of spelling mistakes mm, tracing: Fix kmem_cache_free trace event to not print stale pointers |
||
|
Linus Torvalds
|
245137cdf0 |
Merge branch 'akpm' (patches from Andrew)
Merge more updates from Andrew Morton:
"118 patches:
- The rest of MM.
Includes kfence - another runtime memory validator. Not as thorough
as KASAN, but it has unmeasurable overhead and is intended to be
usable in production builds.
- Everything else
Subsystems affected by this patch series: alpha, procfs, sysctl,
misc, core-kernel, MAINTAINERS, lib, bitops, checkpatch, init,
coredump, seq_file, gdb, ubsan, initramfs, and mm (thp, cma,
vmstat, memory-hotplug, mlock, rmap, zswap, zsmalloc, cleanups,
kfence, kasan2, and pagemap2)"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (118 commits)
MIPS: make userspace mapping young by default
initramfs: panic with memory information
ubsan: remove overflow checks
kgdb: fix to kill breakpoints on initmem after boot
scripts/gdb: fix list_for_each
x86: fix seq_file iteration for pat/memtype.c
seq_file: document how per-entry resources are managed.
fs/coredump: use kmap_local_page()
init/Kconfig: fix a typo in CC_VERSION_TEXT help text
init: clean up early_param_on_off() macro
init/version.c: remove Version_<LINUX_VERSION_CODE> symbol
checkpatch: do not apply "initialise globals to 0" check to BPF progs
checkpatch: don't warn about colon termination in linker scripts
checkpatch: add kmalloc_array_node to unnecessary OOM message check
checkpatch: add warning for avoiding .L prefix symbols in assembly files
checkpatch: improve TYPECAST_INT_CONSTANT test message
checkpatch: prefer ftrace over function entry/exit printks
checkpatch: trivial style fixes
checkpatch: ignore warning designated initializers using NR_CPUS
checkpatch: improve blank line after declaration test
...
|
||
Alexander Potapenko
|
9c0dee54eb |
tracing: add error_report_end trace point
Patch series "Add error_report_end tracepoint to KFENCE and KASAN", v3. This patchset adds a tracepoint, error_repor_end, that is to be used by KFENCE, KASAN, and potentially other bug detection tools, when they print an error report. One of the possible use cases is userspace collection of kernel error reports: interested parties can subscribe to the tracing event via tracefs, and get notified when an error report occurs. This patch (of 3): Introduce error_report_end tracepoint. It can be used in debugging tools like KASAN, KFENCE, etc. to provide extensions to the error reporting mechanisms (e.g. allow tests hook into error reporting, ease error report collection from production kernels). Another benefit would be making use of ftrace for debugging or benchmarking the tools themselves. Should we need it, the tracepoint name leaves us with the possibility to introduce a complementary error_report_start tracepoint in the future. Link: https://lkml.kernel.org/r/20210121131915.1331302-1-glider@google.com Link: https://lkml.kernel.org/r/20210121131915.1331302-2-glider@google.com Signed-off-by: Alexander Potapenko <glider@google.com> Suggested-by: Marco Elver <elver@google.com> Cc: Andrey Konovalov <andreyknvl@google.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Petr Mladek <pmladek@suse.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Vlastimil Babka <vbabka@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
|
Linus Torvalds
|
1c9077cdec |
NFS Client Updates for Linux 5.12
- New Features:
- Support for eager writes, and the write=eager and write=wait mount options
- Other Bugfixes and Cleanups:
- Fix typos in some comments
- Fix up fall-through warnings for Clang
- Cleanups to the NFS readpage codepath
- Remove FMR support in rpcrdma_convert_iovs()
- Various other cleanups to xprtrdma
- Fix xprtrdma pad optimization for servers that don't support RFC 8797
- Improvements to rpcrdma tracepoints
- Fix up nfs4_bitmask_adjust()
- Optimize sparse writes past the end of files
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Merge tag 'nfs-for-5.12-1' of git://git.linux-nfs.org/projects/anna/linux-nfs
Pull NFS Client Updates from Anna Schumaker:
"New Features:
- Support for eager writes, and the write=eager and write=wait mount
options
- Other Bugfixes and Cleanups:
- Fix typos in some comments
- Fix up fall-through warnings for Clang
- Cleanups to the NFS readpage codepath
- Remove FMR support in rpcrdma_convert_iovs()
- Various other cleanups to xprtrdma
- Fix xprtrdma pad optimization for servers that don't support
RFC 8797
- Improvements to rpcrdma tracepoints
- Fix up nfs4_bitmask_adjust()
- Optimize sparse writes past the end of files"
* tag 'nfs-for-5.12-1' of git://git.linux-nfs.org/projects/anna/linux-nfs: (27 commits)
NFS: Support the '-owrite=' option in /proc/self/mounts and mountinfo
NFS: Set the stable writes flag when initialising the super block
NFS: Add mount options supporting eager writes
NFS: Add support for eager writes
NFS: 'flags' field should be unsigned in struct nfs_server
NFS: Don't set NFS_INO_INVALID_XATTR if there is no xattr cache
NFS: Always clear an invalid mapping when attempting a buffered write
NFS: Optimise sparse writes past the end of file
NFS: Fix documenting comment for nfs_revalidate_file_size()
NFSv4: Fixes for nfs4_bitmask_adjust()
xprtrdma: Clean up rpcrdma_prepare_readch()
rpcrdma: Capture bytes received in Receive completion tracepoints
xprtrdma: Pad optimization, revisited
rpcrdma: Fix comments about reverse-direction operation
xprtrdma: Refactor invocations of offset_in_page()
xprtrdma: Simplify rpcrdma_convert_kvec() and frwr_map()
xprtrdma: Remove FMR support in rpcrdma_convert_iovs()
NFS: Add nfs_pageio_complete_read() and remove nfs_readpage_async()
NFS: Call readpage_async_filler() from nfs_readpage_async()
NFS: Refactor nfs_readpage() and nfs_readpage_async() to use nfs_readdesc
...
|
||
|
Steven Rostedt (VMware)
|
d814567942 |
mm, tracing: Fix kmem_cache_free trace event to not print stale pointers
The update to kmem_cache_free trace event added printing of the slab name in
the trace event. But it only stores the pointer of the name which will be
printed as a string when the event is read some time in the future. This is
dangerous because the name could be freed in the mean time and when reading
the trace event it would try to dereference the string name by the pointer
to the name that has been freed.
Instead, use the trace event helper macros __string(), __assign_str(), and
__get_str() that are for this very case.
Cc: Jacob Wen <jian.w.wen@oracle.com>
Fixes:
|
||
Yu Zhao
|
861404536a |
mm/swap.c: don't pass "enum lru_list" to trace_mm_lru_insertion()
The parameter is redundant in the sense that it can be extracted from the "struct page" parameter by page_lru() correctly. Link: https://lore.kernel.org/linux-mm/20201207220949.830352-5-yuzhao@google.com/ Link: https://lkml.kernel.org/r/20210122220600.906146-5-yuzhao@google.com Signed-off-by: Yu Zhao <yuzhao@google.com> Reviewed-by: Alex Shi <alex.shi@linux.alibaba.com> Cc: Hugh Dickins <hughd@google.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Matthew Wilcox <willy@infradead.org> Cc: Michal Hocko <mhocko@kernel.org> Cc: Roman Gushchin <guro@fb.com> Cc: Vladimir Davydov <vdavydov.dev@gmail.com> Cc: Vlastimil Babka <vbabka@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
Jacob Wen
|
3544de8ee6 |
mm, tracing: record slab name for kmem_cache_free()
Currently, a trace record generated by the RCU core is as below. ... kmem_cache_free: call_site=rcu_core+0x1fd/0x610 ptr=00000000f3b49a66 It doesn't tell us what the RCU core has freed. This patch adds the slab name to trace_kmem_cache_free(). The new format is as follows. ... kmem_cache_free: call_site=rcu_core+0x1fd/0x610 ptr=0000000037f79c8d name=dentry ... kmem_cache_free: call_site=rcu_core+0x1fd/0x610 ptr=00000000f78cb7b5 name=sock_inode_cache ... kmem_cache_free: call_site=rcu_core+0x1fd/0x610 ptr=0000000018768985 name=pool_workqueue ... kmem_cache_free: call_site=rcu_core+0x1fd/0x610 ptr=000000006a6cb484 name=radix_tree_node We can use it to understand what the RCU core is going to free. For example, some users maybe interested in when the RCU core starts freeing reclaimable slabs like dentry to reduce memory pressure. Link: https://lkml.kernel.org/r/20201216072804.8838-1-jian.w.wen@oracle.com Signed-off-by: Jacob Wen <jian.w.wen@oracle.com> Cc: Christoph Lameter <cl@linux.com> Cc: Pekka Enberg <penberg@kernel.org> Cc: David Rientjes <rientjes@google.com> Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
|
Linus Torvalds
|
ac9e806c9c |
Merge branch 'for-5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq
Pull qorkqueue updates from Tejun Heo: "Tracepoint and comment updates only" * 'for-5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq: workqueue: Use %s instead of function name workqueue: tracing the name of the workqueue instead of it's address workqueue: fix annotation for WQ_SYSFS |
||
|
Linus Torvalds
|
c958423470 |
Tracing updates for 5.12
- Update to the way irqs and preemption is tracked via the trace event PC field
- Fix handling of unregistering event failing due to allocate memory.
This is only triggered by failure injection, as it is pretty much guaranteed
to have less than a page allocation succeed.
- Do not show the useless "filter" or "enable" files for the "ftrace" trace
system, as they have no effect on doing anything.
- Add a warning if kprobes are registered more than once.
- Synthetic events now have their fields parsed by semicolons.
Old formats without semicolons will still work, but new features will
require them.
- New option to allow trace events to show %p without hashing in trace file.
The trace file can only be read by root, and reading the raw event buffer
did not have any pointers hashed, so this does not expose anything new.
- New directory in tools called tools/tracing, where a new tool that reads
sequential latency reports from the ftrace latency tracers.
- Other minor fixes and cleanups.
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Merge tag 'trace-v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing updates from Steven Rostedt:
- Update to the way irqs and preemption is tracked via the trace event
PC field
- Fix handling of unregistering event failing due to allocate memory.
This is only triggered by failure injection, as it is pretty much
guaranteed to have less than a page allocation succeed.
- Do not show the useless "filter" or "enable" files for the "ftrace"
trace system, as they have no effect on doing anything.
- Add a warning if kprobes are registered more than once.
- Synthetic events now have their fields parsed by semicolons. Old
formats without semicolons will still work, but new features will
require them.
- New option to allow trace events to show %p without hashing in trace
file. The trace file can only be read by root, and reading the raw
event buffer did not have any pointers hashed, so this does not
expose anything new.
- New directory in tools called tools/tracing, where a new tool that
reads sequential latency reports from the ftrace latency tracers.
- Other minor fixes and cleanups.
* tag 'trace-v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (33 commits)
kprobes: Fix to delay the kprobes jump optimization
tracing/tools: Add the latency-collector to tools directory
tracing: Make hash-ptr option default
tracing: Add ptr-hash option to show the hashed pointer value
tracing: Update the stage 3 of trace event macro comment
tracing: Show real address for trace event arguments
selftests/ftrace: Add '!event' synthetic event syntax check
selftests/ftrace: Update synthetic event syntax errors
tracing: Add a backward-compatibility check for synthetic event creation
tracing: Update synth command errors
tracing: Rework synthetic event command parsing
tracing/dynevent: Delegate parsing to create function
kprobes: Warn if the kprobe is reregistered
ftrace: Remove unused ftrace_force_update()
tracepoints: Code clean up
tracepoints: Do not punish non static call users
tracepoints: Remove unnecessary "data_args" macro parameter
tracing: Do not create "enable" or "filter" files for ftrace event subsystem
kernel: trace: preemptirq_delay_test: add cpu affinity
tracepoint: Do not fail unregistering a probe due to memory failure
...
|
||
|
Linus Torvalds
|
d652ea30ba |
IOMMU Updates for Linux v5.12
Including:
- ARM SMMU and Mediatek updates from Will Deacon:
- Support for MT8192 IOMMU from Mediatek
- Arm v7s io-pgtable extensions for MT8192
- Removal of TLBI_ON_MAP quirk
- New Qualcomm compatible strings
- Allow SVA without hardware broadcast TLB maintenance
on SMMUv3
- Virtualization Host Extension support for SMMUv3 (SVA)
- Allow SMMUv3 PMU (perf) driver to be built
independently from IOMMU
- Some tidy-up in IOVA and core code
- Conversion of the AMD IOMMU code to use the generic
IO-page-table framework
- Intel VT-d updates from Lu Baolu:
- Audit capability consistency among different IOMMUs
- Add SATC reporting structure support
- Add iotlb_sync_map callback support
- SDHI Support for Renesas IOMMU driver
- Misc Cleanups and other small improvments
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Merge tag 'iommu-updates-v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
Pull iommu updates from Joerg Roedel:
- ARM SMMU and Mediatek updates from Will Deacon:
- Support for MT8192 IOMMU from Mediatek
- Arm v7s io-pgtable extensions for MT8192
- Removal of TLBI_ON_MAP quirk
- New Qualcomm compatible strings
- Allow SVA without hardware broadcast TLB maintenance on SMMUv3
- Virtualization Host Extension support for SMMUv3 (SVA)
- Allow SMMUv3 PMU perf driver to be built independently from IOMMU
- Some tidy-up in IOVA and core code
- Conversion of the AMD IOMMU code to use the generic IO-page-table
framework
- Intel VT-d updates from Lu Baolu:
- Audit capability consistency among different IOMMUs
- Add SATC reporting structure support
- Add iotlb_sync_map callback support
- SDHI support for Renesas IOMMU driver
- Misc cleanups and other small improvments
* tag 'iommu-updates-v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (94 commits)
iommu/amd: Fix performance counter initialization
MAINTAINERS: repair file pattern in MEDIATEK IOMMU DRIVER
iommu/mediatek: Fix error code in probe()
iommu/mediatek: Fix unsigned domid comparison with less than zero
iommu/vt-d: Parse SATC reporting structure
iommu/vt-d: Add new enum value and structure for SATC
iommu/vt-d: Add iotlb_sync_map callback
iommu/vt-d: Move capability check code to cap_audit files
iommu/vt-d: Audit IOMMU Capabilities and add helper functions
iommu/vt-d: Fix 'physical' typos
iommu: Properly pass gfp_t in _iommu_map() to avoid atomic sleeping
iommu/vt-d: Fix compile error [-Werror=implicit-function-declaration]
driver/perf: Remove ARM_SMMU_V3_PMU dependency on ARM_SMMU_V3
MAINTAINERS: Add entry for MediaTek IOMMU
iommu/mediatek: Add mt8192 support
iommu/mediatek: Remove unnecessary check in attach_device
iommu/mediatek: Support master use iova over 32bit
iommu/mediatek: Add iova reserved function
iommu/mediatek: Support for multi domains
iommu/mediatek: Add get_domain_id from dev->dma_range_map
...
|
||
|
Linus Torvalds
|
bdb39c9509 |
SCSI misc on 20210219
This series consists of the usual driver updates (ufs, ibmvfc, qla2xxx, hisi_sas, pm80xx) plus the removal of the gdth driver (which is bound to cause conflicts with a trivial change somewhere). The only big major rework of note is the one from Hannes trying to clean up our result handling code in the drivers to make it consistent. Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com> -----BEGIN PGP SIGNATURE----- iJwEABMIAEQWIQTnYEDbdso9F2cI+arnQslM7pishQUCYDAdliYcamFtZXMuYm90 dG9tbGV5QGhhbnNlbnBhcnRuZXJzaGlwLmNvbQAKCRDnQslM7pishTblAQCk6wD8 fcb4TItSRp0DpRzs37zhppEbrBgveuAFHhr5swEA0gL2mHcq0vnyNBinCLnERrE7 TPYJqUKJNktnjVG7ZWc= =wW6p -----END PGP SIGNATURE----- Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi Pull SCSI updates from James Bottomley: "This series consists of the usual driver updates (ufs, ibmvfc, qla2xxx, hisi_sas, pm80xx) plus the removal of the gdth driver (which is bound to cause conflicts with a trivial change somewhere). The only big major rework of note is the one from Hannes trying to clean up our result handling code in the drivers to make it consistent" * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (194 commits) scsi: MAINTAINERS: Adjust to reflect gdth scsi driver removal scsi: ufs: Give clk scaling min gear a value scsi: lpfc: Fix 'physical' typos scsi: megaraid_mbox: Fix spelling of 'allocated' scsi: qla2xxx: Simplify the calculation of variables scsi: message: fusion: Fix 'physical' typos scsi: target: core: Change ASCQ for residual write scsi: target: core: Signal WRITE residuals scsi: target: core: Set residuals for 4Kn devices scsi: hisi_sas: Add trace FIFO debugfs support scsi: hisi_sas: Flush workqueue in hisi_sas_v3_remove() scsi: hisi_sas: Enable debugfs support by default scsi: hisi_sas: Don't check .nr_hw_queues in hisi_sas_task_prep() scsi: hisi_sas: Remove deferred probe check in hisi_sas_v2_probe() scsi: lpfc: Add auto select on IRQ_POLL scsi: ncr53c8xx: Fix typos scsi: lpfc: Fix ancient double free scsi: qla2xxx: Fix some memory corruption scsi: qla2xxx: Remove redundant NULL check scsi: megaraid: Fix ifnullfree.cocci warnings ... |
||
Chaitanya Kulkarni
|
b071924509 |
blktrace: fix blk_rq_merge documentation
The commit |
||
|
Chaitanya Kulkarni
|
c7ff651960 |
blktrace: fix blk_rq_issue documentation
The commit |
||
|
Chaitanya Kulkarni
|
179d160072 |
block: remove superfluous param in blk_fill_rwbs()
The last parameter for the function blk_fill_rwbs() was added in
5782138e47 ("tracing/events: convert block trace points to
TRACE_EVENT()") in order to signal read request and use of that parameter
was replaced with using switch case REQ_OP_READ with
|
||
|
Linus Torvalds
|
d089f48fba |
These are the latest RCU updates for v5.12:
- Documentation updates.
- Miscellaneous fixes.
- kfree_rcu() updates: Addition of mem_dump_obj() to provide allocator return
addresses to more easily locate bugs. This has a couple of RCU-related commits,
but is mostly MM. Was pulled in with akpm's agreement.
- Per-callback-batch tracking of numbers of callbacks,
which enables better debugging information and smarter
reactions to large numbers of callbacks.
- The first round of changes to allow CPUs to be runtime switched from and to
callback-offloaded state.
- CONFIG_PREEMPT_RT-related changes.
- RCU CPU stall warning updates.
- Addition of polling grace-period APIs for SRCU.
- Torture-test and torture-test scripting updates, including a "torture everything"
script that runs rcutorture, locktorture, scftorture, rcuscale, and refscale.
Plus does an allmodconfig build.
- nolibc fixes for the torture tests
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'core-rcu-2021-02-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull RCU updates from Ingo Molnar:
"These are the latest RCU updates for v5.12:
- Documentation updates.
- Miscellaneous fixes.
- kfree_rcu() updates: Addition of mem_dump_obj() to provide
allocator return addresses to more easily locate bugs. This has a
couple of RCU-related commits, but is mostly MM. Was pulled in with
akpm's agreement.
- Per-callback-batch tracking of numbers of callbacks, which enables
better debugging information and smarter reactions to large numbers
of callbacks.
- The first round of changes to allow CPUs to be runtime switched
from and to callback-offloaded state.
- CONFIG_PREEMPT_RT-related changes.
- RCU CPU stall warning updates.
- Addition of polling grace-period APIs for SRCU.
- Torture-test and torture-test scripting updates, including a
"torture everything" script that runs rcutorture, locktorture,
scftorture, rcuscale, and refscale. Plus does an allmodconfig
build.
- nolibc fixes for the torture tests"
* tag 'core-rcu-2021-02-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (130 commits)
percpu_ref: Dump mem_dump_obj() info upon reference-count underflow
rcu: Make call_rcu() print mem_dump_obj() info for double-freed callback
mm: Make mem_obj_dump() vmalloc() dumps include start and length
mm: Make mem_dump_obj() handle vmalloc() memory
mm: Make mem_dump_obj() handle NULL and zero-sized pointers
mm: Add mem_dump_obj() to print source of memory block
tools/rcutorture: Fix position of -lgcc in mkinitrd.sh
tools/nolibc: Fix position of -lgcc in the documented example
tools/nolibc: Emit detailed error for missing alternate syscall number definitions
tools/nolibc: Remove incorrect definitions of __ARCH_WANT_*
tools/nolibc: Get timeval, timespec and timezone from linux/time.h
tools/nolibc: Implement poll() based on ppoll()
tools/nolibc: Implement fork() based on clone()
tools/nolibc: Make getpgrp() fall back to getpgid(0)
tools/nolibc: Make dup2() rely on dup3() when available
tools/nolibc: Add the definition for dup()
rcutorture: Add rcutree.use_softirq=0 to RUDE01 and TASKS01
torture: Maintain torture-specific set of CPUs-online books
torture: Clean up after torture-test CPU hotplugging
rcutorture: Make object_debug also double call_rcu() heap object
...
|
||
|
Linus Torvalds
|
99f1a5872b |
Highlights:
- Update NFSv2 and NFSv3 XDR decoding functions - Further improve support for re-exporting NFS mounts - Convert NFSD stats to per-CPU counters - Add batch Receive posting to the server's RPC/RDMA transport -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEKLLlsBKG3yQ88j7+M2qzM29mf5cFAmAYVsAACgkQM2qzM29m f5f1Lg/+IBC7Bhnnc8jNr4nv4IntCwwKdx2VzSzQszbN/kkhLZK89u36nZyqp0RB Vg3olyS5DseEisMMx0rI0KkHBz7pz+kXVdOGvve8fHBZvewnJ/FpxNZPChG4aMDc mfjHLvDHO0/GoUqSftrBrjSEJ2jHoNdDcmvzgdAlugTuLOjGX3HhmKa3ZYVTNgFn kDmFMaEHjS3pb3LqNDHNIYYpNnvtIukxHUh9weDvr+AH8Rmt/WVfjDc26xBS0FQu jDJUk9AP06VYgZx0dLKp4In8GJYwz9DNjNrWm91+RyJml9AWrFswdBHHcfi0W/Yy GipkBZGYE6ZblyMlITZCB4etyHQsq7qLuqicTlcXjL/Fdkd7xlT8DwFlZ8LjpyCU LeHTI2cGzRSJ/JjL2hvhPvT3gR5hln/qk17jSP7V4S6psZAqAEvw/Xa/+MDJhB/b vnzltFPvEgZc59Q/SJLbaWZLHy1q0enbrOBLMZDmUlk911/tgAuflHJM60N8o732 vkfy05pvZlrV0cFY546pQd7zTKZcAOYPVHHoP25wPa2ibKBu6eQ6kZEi5zu+tVK3 CkvqIhePFspBMQ6GOPKixTiFV4KFoO1HBtk+JEeMkiHXHk1xATCWbg1m7wkaagsq NNS/qFkLRnftGYpFViBaxTFBGxiBOSbsTIS/zfj5L7JOpW4FRD4= =02xw -----END PGP SIGNATURE----- Merge tag 'nfsd-5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux Pull nfsd updates from Chuck Lever: - Update NFSv2 and NFSv3 XDR decoding functions - Further improve support for re-exporting NFS mounts - Convert NFSD stats to per-CPU counters - Add batch Receive posting to the server's RPC/RDMA transport * tag 'nfsd-5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux: (65 commits) nfsd: skip some unnecessary stats in the v4 case nfs: use change attribute for NFS re-exports NFSv4_2: SSC helper should use its own config. nfsd: cstate->session->se_client -> cstate->clp nfsd: simplify nfsd4_check_open_reclaim nfsd: remove unused set_client argument nfsd: find_cpntf_state cleanup nfsd: refactor set_client nfsd: rename lookup_clientid->set_client nfsd: simplify nfsd_renew nfsd: simplify process_lock nfsd4: simplify process_lookup1 SUNRPC: Correct a comment svcrdma: DMA-sync the receive buffer in svc_rdma_recvfrom() svcrdma: Reduce Receive doorbell rate svcrdma: Deprecate stat variables that are no longer used svcrdma: Restore read and write stats svcrdma: Convert rdma_stat_sq_starve to a per-CPU counter svcrdma: Convert rdma_stat_recv to a per-CPU counter svcrdma: Refactor svc_rdma_init() and svc_rdma_clean_up() ... |
||
|
Linus Torvalds
|
6f3952cbe0 |
for-5.12-tag
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Merge tag 'for-5.12-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs updates from David Sterba:
"This brings updates of space handling, performance improvements or bug
fixes. The subpage block size and zoned mode features have reached
state where they're usable but with limitations.
Performance or related:
- do not block on deleted block group mutex in the cleaner, avoids
some long stalls
- improved flushing: make it work better with ticket space
reservations and avoid excessive transaction commits in some
scenarios, slightly improves throughput for random write load
- preemptive background flushing: separate the logic from ticket
reservations, improve the accounting and decisions when to flush in
low space conditions
- less lock contention related to running delayed refs, let just one
thread do the flushing when there are many inside transaction
commit
- dbench workload improvements: avoid unnecessary work when logging
inodes, fewer fallbacks to transaction commit and thus less waiting
for it (+7% throughput, -20% latency)
Core:
- subpage block size
- currently read-only support
- refactor and generalize code where sectorsize is assumed to be
page size, add the subpage handling everywhere
- the read-write support is on the way, page sizes are still
limited to 4K or 64K
- zoned mode, first working version but with limitations
- SMR/ZBC/ZNS friendly allocation mode, utilizing the "no fixed
location for structures" and chunked allocation
- superblock as the only fixed data structure needs special
handling, uses 2 consecutive zones as a ring buffer
- tree-log support with a dedicated block group to avoid unordered
writes
- emulated zones on non-zoned devices
- not yet working
- all non-single block group profiles, requires more zone write
pointer synchronization between the multiple block groups
- fitrim due to dependency on space cache, can be implemented
Fixes:
- ref-verify: proper tree owner and node level tracking
- fix pinned byte accounting, causing some early ENOSPC now more
likely due to other changes in delayed refs
Other:
- error handling fixes and improvements
- more error injection points
- more function documentation
- more and updated tracepoints
- subset of W=1 checked by default
- update comments to allow more automatic kdoc parameter checks"
* tag 'for-5.12-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: (144 commits)
btrfs: zoned: enable to mount ZONED incompat flag
btrfs: zoned: deal with holes writing out tree-log pages
btrfs: zoned: reorder log node allocation on zoned filesystem
btrfs: zoned: serialize log transaction on zoned filesystems
btrfs: zoned: extend zoned allocator to use dedicated tree-log block group
btrfs: split alloc_log_tree()
btrfs: zoned: relocate block group to repair IO failure in zoned filesystems
btrfs: zoned: enable relocation on a zoned filesystem
btrfs: zoned: support dev-replace in zoned filesystems
btrfs: zoned: implement copying for zoned device-replace
btrfs: zoned: implement cloning for zoned device-replace
btrfs: zoned: mark block groups to copy for device-replace
btrfs: zoned: do not use async metadata checksum on zoned filesystems
btrfs: zoned: wait for existing extents before truncating
btrfs: zoned: serialize metadata IO
btrfs: zoned: introduce dedicated data write path for zoned filesystems
btrfs: zoned: enable zone append writing for direct IO
btrfs: zoned: use ZONE_APPEND write for zoned mode
btrfs: save irq flags when looking up an ordered extent
btrfs: zoned: cache if block group is on a sequential zone
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David S. Miller
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b8af417e4d |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Daniel Borkmann says: ==================== pull-request: bpf-next 2021-02-16 The following pull-request contains BPF updates for your *net-next* tree. There's a small merge conflict between |
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Ingo Molnar
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85e853c5ec |
Merge branch 'for-mingo-rcu' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcu
Pull RCU updates from Paul E. McKenney: - Documentation updates. - Miscellaneous fixes. - kfree_rcu() updates: Addition of mem_dump_obj() to provide allocator return addresses to more easily locate bugs. This has a couple of RCU-related commits, but is mostly MM. Was pulled in with akpm's agreement. - Per-callback-batch tracking of numbers of callbacks, which enables better debugging information and smarter reactions to large numbers of callbacks. - The first round of changes to allow CPUs to be runtime switched from and to callback-offloaded state. - CONFIG_PREEMPT_RT-related changes. - RCU CPU stall warning updates. - Addition of polling grace-period APIs for SRCU. - Torture-test and torture-test scripting updates, including a "torture everything" script that runs rcutorture, locktorture, scftorture, rcuscale, and refscale. Plus does an allmodconfig build. Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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Masami Hiramatsu
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1600cbcf69 |
tracing: Update the stage 3 of trace event macro comment
Update the comment of the 3rd stage of trace event macro expansion code. Now there are 2 macros makes different trace_raw_output_<call>() functions. Link: https://lkml.kernel.org/r/160277371605.29307.8586817119278606720.stgit@devnote2 Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org> |
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Masami Hiramatsu
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efbbdaa22b |
tracing: Show real address for trace event arguments
To help debugging kernel, show real address for trace event arguments
in tracefs/trace{,pipe} instead of hashed pointer value.
Since ftrace human-readable format uses vsprintf(), all %p are
translated to hash values instead of pointer address.
However, when debugging the kernel, raw address value gives a
hint when comparing with the memory mapping in the kernel.
(Those are sometimes used with crash log, which is not hashed too)
So converting %p with %px when calling trace_seq_printf().
Moreover, this is not improving the security because the tracefs
can be used only by root user and the raw address values are readable
from tracefs/percpu/cpu*/trace_pipe_raw file.
Link: https://lkml.kernel.org/r/160277370703.29307.5134475491761971203.stgit@devnote2
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
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Josef Bacik
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e5ad49e215 |
btrfs: add a trace class for dumping the current ENOSPC state
Often when I'm debugging ENOSPC related issues I have to resort to printing the entire ENOSPC state with trace_printk() in different spots. This gets pretty annoying, so add a trace state that does this for us. Then add a trace point at the end of preemptive flushing so you can see the state of the space_info when we decide to exit preemptive flushing. This helped me figure out we weren't kicking in the preemptive flushing soon enough. Reviewed-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: Josef Bacik <josef@toxicpanda.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com> |
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Josef Bacik
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4b02b00fe5 |
btrfs: adjust the flush trace point to include the source
Since we have normal ticketed flushing and preemptive flushing, adjust the tracepoint so that we know the source of the flushing action to make it easier to debug problems. Reviewed-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: Josef Bacik <josef@toxicpanda.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com> |