linux-2.6-block.git
3 years agoio_uring: clean up io_try_cancel
Pavel Begunkov [Thu, 16 Jun 2022 09:22:04 +0000 (10:22 +0100)]
io_uring: clean up io_try_cancel

Get rid of an unnecessary extra goto in io_try_cancel() and simplify the
function.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/48cf5417b43a8386c6c364dba1ad9b4c7382d158.1655371007.git.asml.silence@gmail.com
Reviewed-by: Hao Xu <howeyxu@tencent.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: pass poll_find lock back
Pavel Begunkov [Thu, 16 Jun 2022 09:22:03 +0000 (10:22 +0100)]
io_uring: pass poll_find lock back

Instead of using implicit knowledge of what is locked or not after
io_poll_find() and co returns, pass back a pointer to the locked
bucket if any. If set the user must to unlock the spinlock.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/dae1dc5749aa34367812ecf62f82fd3f053aae44.1655371007.git.asml.silence@gmail.com
Reviewed-by: Hao Xu <howeyxu@tencent.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: switch cancel_hash to use per entry spinlock
Hao Xu [Thu, 16 Jun 2022 09:22:02 +0000 (10:22 +0100)]
io_uring: switch cancel_hash to use per entry spinlock

Add a new io_hash_bucket structure so that each bucket in cancel_hash
has separate spinlock. Use per entry lock for cancel_hash, this removes
some completion lock invocation and remove contension between different
cancel_hash entries.

Signed-off-by: Hao Xu <howeyxu@tencent.com>
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/05d1e135b0c8bce9d1441e6346776589e5783e26.1655371007.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: poll: remove unnecessary req->ref set
Hao Xu [Thu, 16 Jun 2022 09:22:01 +0000 (10:22 +0100)]
io_uring: poll: remove unnecessary req->ref set

We now don't need to set req->refcount for poll requests since the
reworked poll code ensures no request release race.

Signed-off-by: Hao Xu <howeyxu@tencent.com>
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/ec6fee45705890bdb968b0c175519242753c0215.1655371007.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: don't inline io_put_kbuf
Pavel Begunkov [Thu, 16 Jun 2022 09:22:00 +0000 (10:22 +0100)]
io_uring: don't inline io_put_kbuf

io_put_kbuf() is huge, don't bloat the kernel with inlining.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/2e21ccf0be471ffa654032914b9430813cae53f8.1655371007.git.asml.silence@gmail.com
Reviewed-by: Hao Xu <howeyxu@tencent.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: refactor io_req_task_complete()
Pavel Begunkov [Thu, 16 Jun 2022 09:21:59 +0000 (10:21 +0100)]
io_uring: refactor io_req_task_complete()

Clean up io_req_task_complete() and deduplicate io_put_kbuf() calls.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/ae3148ac7eb5cce3e06895cde306e9e959d6f6ae.1655371007.git.asml.silence@gmail.com
Reviewed-by: Hao Xu <howeyxu@tencent.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: kill REQ_F_COMPLETE_INLINE
Pavel Begunkov [Thu, 16 Jun 2022 09:21:58 +0000 (10:21 +0100)]
io_uring: kill REQ_F_COMPLETE_INLINE

REQ_F_COMPLETE_INLINE is only needed to delay queueing into the
completion list to io_queue_sqe() as __io_req_complete() is inlined and
we don't want to bloat the kernel.

As now we complete in a more centralised fashion in io_issue_sqe() we
can get rid of the flag and queue to the list directly.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/600ba20a9338b8a39b249b23d3d177803613dde4.1655371007.git.asml.silence@gmail.com
Reviewed-by: Hao Xu <howeyxu@tencent.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: rw: delegate sync completions to core io_uring
Pavel Begunkov [Thu, 16 Jun 2022 09:21:57 +0000 (10:21 +0100)]
io_uring: rw: delegate sync completions to core io_uring

io_issue_sqe() from the io_uring core knows how to complete requests
based on the returned error code, we can delegate io_read()/io_write()
completion to it. Make kiocb_done() to return the right completion
code and propagate it.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/32ef005b45d23bf6b5e6837740dc0331bb051bd4.1655371007.git.asml.silence@gmail.com
Reviewed-by: Hao Xu <howeyxu@tencent.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: remove unused IO_REQ_CACHE_SIZE defined
Jens Axboe [Wed, 15 Jun 2022 22:28:17 +0000 (16:28 -0600)]
io_uring: remove unused IO_REQ_CACHE_SIZE defined

Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: don't set REQ_F_COMPLETE_INLINE in tw
Pavel Begunkov [Wed, 15 Jun 2022 16:33:56 +0000 (17:33 +0100)]
io_uring: don't set REQ_F_COMPLETE_INLINE in tw

io_req_task_complete() enqueues requests for state completion itself, no
need for REQ_F_COMPLETE_INLINE, which is only serve the purpose of not
bloating the kernel.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/aca80f71464ad02c06f1311d998a2d6ee0b31573.1655310733.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: remove check_cq checking from hot paths
Pavel Begunkov [Wed, 15 Jun 2022 16:33:55 +0000 (17:33 +0100)]
io_uring: remove check_cq checking from hot paths

All ctx->check_cq events are slow path, don't test every single flag one
by one in the hot path, but add a common guarding if.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/dff026585cea7ff3a172a7c83894a3b0111bbf6a.1655310733.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: never defer-complete multi-apoll
Pavel Begunkov [Wed, 15 Jun 2022 16:33:54 +0000 (17:33 +0100)]
io_uring: never defer-complete multi-apoll

Luckily, nnobody completes multi-apoll requests outside the polling
functions, but don't set IO_URING_F_COMPLETE_DEFER in any case as
there is nobody who is catching REQ_F_COMPLETE_INLINE, and so will leak
requests if used.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/a65ed3f5effd9321ee06e6edea294a03be3e15a0.1655310733.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: inline ->registered_rings
Pavel Begunkov [Wed, 15 Jun 2022 16:33:53 +0000 (17:33 +0100)]
io_uring: inline ->registered_rings

There can be only 16 registered rings, no need to allocate an array for
them separately but store it in tctx.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/495f0b953c87994dd9e13de2134019054fa5830d.1655310733.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: explain io_wq_work::cancel_seq placement
Pavel Begunkov [Wed, 15 Jun 2022 16:33:52 +0000 (17:33 +0100)]
io_uring: explain io_wq_work::cancel_seq placement

Add a comment on why we keep ->cancel_seq in struct io_wq_work instead
of struct io_kiocb despite it needed only by io_uring but not io-wq.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/988e87eec9dc700b5dae933df3aefef303502f6c.1655310733.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: move small helpers to headers
Pavel Begunkov [Wed, 15 Jun 2022 16:33:51 +0000 (17:33 +0100)]
io_uring: move small helpers to headers

There is a bunch of inline helpers that will be useful not only to the
core of io_uring, move them to headers.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/22df99c83723e44cba7e945e8519e64e3642c064.1655310733.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: refactor ctx slow data placement
Pavel Begunkov [Wed, 15 Jun 2022 16:33:50 +0000 (17:33 +0100)]
io_uring: refactor ctx slow data placement

Shove all slow path data at the end of ctx and get rid of extra
indention.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/bcaf200298dd469af20787650550efc66d89bef2.1655310733.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: better caching for ctx timeout fields
Pavel Begunkov [Wed, 15 Jun 2022 16:33:49 +0000 (17:33 +0100)]
io_uring: better caching for ctx timeout fields

Following timeout fields access patterns, move all of them into a
separate cache line inside ctx, so they don't intervene with normal
completion caching, especially since timeout removals and completion
are separated and the later is done via tw.

It also sheds some bytes from io_ring_ctx, 1216B -> 1152B

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/4b163793072840de53b3cb66e0c2995e7226ff78.1655310733.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: move defer_list to slow data
Pavel Begunkov [Wed, 15 Jun 2022 16:33:48 +0000 (17:33 +0100)]
io_uring: move defer_list to slow data

draining is slow path, move defer_list to the end where slow data lives
inside the context.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/e16379391ca72b490afdd24e8944baab849b4a7b.1655310733.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: make reg buf init consistent
Pavel Begunkov [Wed, 15 Jun 2022 16:33:47 +0000 (17:33 +0100)]
io_uring: make reg buf init consistent

The default (i.e. empty) state of register buffer is dummy_ubuf, so set
it to dummy on init instead of NULL.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/c5456aecf03d9627fbd6e65e100e2b5293a6151e.1655310733.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: deprecate epoll_ctl support
Jens Axboe [Wed, 1 Jun 2022 18:36:42 +0000 (12:36 -0600)]
io_uring: deprecate epoll_ctl support

As far as we know, nobody ever adopted the epoll_ctl management via
io_uring. Deprecate it now with a warning, and plan on removing it in
a later kernel version. When we do remove it, we can revert the following
commits as well:

39220e8d4a2a ("eventpoll: support non-blocking do_epoll_ctl() calls")
58e41a44c488 ("eventpoll: abstract out epoll_ctl() handler")

Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Link: https://lore.kernel.org/io-uring/CAHk-=wiTyisXBgKnVHAGYCNvkmjk=50agS2Uk6nr+n3ssLZg2w@mail.gmail.com/
Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: add support for level triggered poll
Jens Axboe [Fri, 27 May 2022 16:55:07 +0000 (10:55 -0600)]
io_uring: add support for level triggered poll

By default, the POLL_ADD command does edge triggered poll - if we get
a non-zero mask on the initial poll attempt, we complete the request
successfully.

Support level triggered by always waiting for a notification, regardless
of whether or not the initial mask matches the file state.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: move opcode table to opdef.c
Jens Axboe [Wed, 15 Jun 2022 22:27:42 +0000 (16:27 -0600)]
io_uring: move opcode table to opdef.c

We already have the declarations in opdef.h, move the rest into its own
file rather than in the main io_uring.c file.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: move read/write related opcodes to its own file
Jens Axboe [Mon, 13 Jun 2022 13:27:03 +0000 (07:27 -0600)]
io_uring: move read/write related opcodes to its own file

Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: move remaining file table manipulation to filetable.c
Jens Axboe [Thu, 26 May 2022 15:44:31 +0000 (09:44 -0600)]
io_uring: move remaining file table manipulation to filetable.c

Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: move rsrc related data, core, and commands
Jens Axboe [Mon, 13 Jun 2022 13:12:45 +0000 (07:12 -0600)]
io_uring: move rsrc related data, core, and commands

Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: split provided buffers handling into its own file
Jens Axboe [Mon, 13 Jun 2022 13:07:23 +0000 (07:07 -0600)]
io_uring: split provided buffers handling into its own file

Move both the opcodes related to it, and the internals code dealing with
it.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: move cancelation into its own file
Jens Axboe [Thu, 26 May 2022 02:36:47 +0000 (20:36 -0600)]
io_uring: move cancelation into its own file

This also helps cleanup the io_uring.h cancel parts, as we can make
things static in the cancel.c file, mostly.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: move poll handling into its own file
Jens Axboe [Thu, 26 May 2022 02:31:09 +0000 (20:31 -0600)]
io_uring: move poll handling into its own file

Add a io_poll_issue() rather than export the general task_work locking
and io_issue_sqe(), and put the io_op_defs definition and structure into
a separate header file so that poll can use it.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: add opcode name to io_op_defs
Jens Axboe [Wed, 25 May 2022 17:57:03 +0000 (11:57 -0600)]
io_uring: add opcode name to io_op_defs

This kills the last per-op switch.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: include and forward-declaration sanitation
Jens Axboe [Wed, 25 May 2022 17:48:35 +0000 (11:48 -0600)]
io_uring: include and forward-declaration sanitation

Remove some dead headers we no longer need, and get rid of the
io_ring_ctx and io_uring_fops forward declarations.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: move io_uring_task (tctx) helpers into its own file
Jens Axboe [Wed, 25 May 2022 17:01:04 +0000 (11:01 -0600)]
io_uring: move io_uring_task (tctx) helpers into its own file

Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: move fdinfo helpers to its own file
Jens Axboe [Wed, 25 May 2022 16:40:19 +0000 (10:40 -0600)]
io_uring: move fdinfo helpers to its own file

This also means moving a bit more of the fixed file handling to the
filetable side, which makes sense separately too.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: use io_is_uring_fops() consistently
Jens Axboe [Wed, 25 May 2022 16:28:04 +0000 (10:28 -0600)]
io_uring: use io_is_uring_fops() consistently

Convert the last spots that check for io_uring_fops to use the provided
helper instead.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: move SQPOLL related handling into its own file
Jens Axboe [Wed, 25 May 2022 15:13:39 +0000 (09:13 -0600)]
io_uring: move SQPOLL related handling into its own file

Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: move timeout opcodes and handling into its own file
Jens Axboe [Wed, 25 May 2022 14:57:27 +0000 (08:57 -0600)]
io_uring: move timeout opcodes and handling into its own file

Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: move our reference counting into a header
Jens Axboe [Wed, 25 May 2022 14:56:52 +0000 (08:56 -0600)]
io_uring: move our reference counting into a header

Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: move msg_ring into its own file
Jens Axboe [Wed, 25 May 2022 12:42:08 +0000 (06:42 -0600)]
io_uring: move msg_ring into its own file

Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: split network related opcodes into its own file
Jens Axboe [Wed, 25 May 2022 12:25:13 +0000 (06:25 -0600)]
io_uring: split network related opcodes into its own file

While at it, convert the handlers to just use io_eopnotsupp_prep()
if CONFIG_NET isn't set.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: move statx handling to its own file
Jens Axboe [Wed, 25 May 2022 12:12:18 +0000 (06:12 -0600)]
io_uring: move statx handling to its own file

Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: move epoll handler to its own file
Jens Axboe [Wed, 25 May 2022 12:09:18 +0000 (06:09 -0600)]
io_uring: move epoll handler to its own file

Would be nice to sort out Kconfig for this and don't even compile
epoll.c if we don't have epoll configured.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: add a dummy -EOPNOTSUPP prep handler
Jens Axboe [Wed, 25 May 2022 12:04:14 +0000 (06:04 -0600)]
io_uring: add a dummy -EOPNOTSUPP prep handler

Add it and use it for the epoll handling, if epoll isn't configured.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: move uring_cmd handling to its own file
Jens Axboe [Wed, 25 May 2022 11:59:19 +0000 (05:59 -0600)]
io_uring: move uring_cmd handling to its own file

Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: split out open/close operations
Jens Axboe [Wed, 25 May 2022 03:54:43 +0000 (21:54 -0600)]
io_uring: split out open/close operations

Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: separate out file table handling code
Jens Axboe [Wed, 25 May 2022 03:43:10 +0000 (21:43 -0600)]
io_uring: separate out file table handling code

Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: split out fadvise/madvise operations
Jens Axboe [Wed, 25 May 2022 03:28:33 +0000 (21:28 -0600)]
io_uring: split out fadvise/madvise operations

Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: split out fs related sync/fallocate functions
Jens Axboe [Wed, 25 May 2022 03:25:19 +0000 (21:25 -0600)]
io_uring: split out fs related sync/fallocate functions

This splits out sync_file_range, fsync, and fallocate.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: split out splice related operations
Jens Axboe [Wed, 25 May 2022 03:19:47 +0000 (21:19 -0600)]
io_uring: split out splice related operations

This splits out splice and tee support.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: split out filesystem related operations
Jens Axboe [Wed, 25 May 2022 03:13:00 +0000 (21:13 -0600)]
io_uring: split out filesystem related operations

This splits out renameat, unlinkat, mkdirat, symlinkat, and linkat.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: move nop into its own file
Jens Axboe [Tue, 24 May 2022 17:56:42 +0000 (11:56 -0600)]
io_uring: move nop into its own file

Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: move xattr related opcodes to its own file
Jens Axboe [Tue, 24 May 2022 17:46:43 +0000 (11:46 -0600)]
io_uring: move xattr related opcodes to its own file

Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: handle completions in the core
Jens Axboe [Tue, 24 May 2022 21:21:00 +0000 (15:21 -0600)]
io_uring: handle completions in the core

Normally request handlers complete requests themselves, if they don't
return an error. For the latter case, the core will complete it for
them.

This is unhandy for pushing opcode handlers further out, as we don't
want a bunch of inline completion code and we don't want to make the
completion path slower than it is now.

Let the core handle any completion, unless the handler explicitly
asks us not to.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: set completion results upfront
Jens Axboe [Tue, 24 May 2022 18:45:38 +0000 (12:45 -0600)]
io_uring: set completion results upfront

Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: add io_uring_types.h
Jens Axboe [Tue, 24 May 2022 16:56:14 +0000 (10:56 -0600)]
io_uring: add io_uring_types.h

This adds definitions of structs that both the core and the various
opcode handlers need to know about.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: define a request type cleanup handler
Jens Axboe [Tue, 24 May 2022 16:26:28 +0000 (10:26 -0600)]
io_uring: define a request type cleanup handler

This can move request type specific cleanup into a private handler,
removing the need for the core io_uring parts to know what types
they are dealing with.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: unify struct io_symlink and io_hardlink
Jens Axboe [Tue, 24 May 2022 16:19:47 +0000 (10:19 -0600)]
io_uring: unify struct io_symlink and io_hardlink

They are really just a subset of each other, just use the one type.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: convert iouring_cmd to io_cmd_type
Jens Axboe [Tue, 24 May 2022 16:09:32 +0000 (10:09 -0600)]
io_uring: convert iouring_cmd to io_cmd_type

Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: convert xattr to use io_cmd_type
Jens Axboe [Tue, 24 May 2022 16:06:46 +0000 (10:06 -0600)]
io_uring: convert xattr to use io_cmd_type

Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: convert rsrc_update to io_cmd_type
Jens Axboe [Tue, 24 May 2022 16:05:49 +0000 (10:05 -0600)]
io_uring: convert rsrc_update to io_cmd_type

Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: convert msg and nop to io_cmd_type
Jens Axboe [Tue, 24 May 2022 16:03:49 +0000 (10:03 -0600)]
io_uring: convert msg and nop to io_cmd_type

Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: convert splice to use io_cmd_type
Jens Axboe [Tue, 24 May 2022 16:01:47 +0000 (10:01 -0600)]
io_uring: convert splice to use io_cmd_type

Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: convert epoll to io_cmd_type
Jens Axboe [Tue, 24 May 2022 16:01:09 +0000 (10:01 -0600)]
io_uring: convert epoll to io_cmd_type

Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: convert file system request types to use io_cmd_type
Jens Axboe [Tue, 24 May 2022 15:59:28 +0000 (09:59 -0600)]
io_uring: convert file system request types to use io_cmd_type

This converts statx, rename, unlink, mkdir, symlink, and hardlink to
use io_cmd_type.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: convert madvise/fadvise to use io_cmd_type
Jens Axboe [Tue, 24 May 2022 15:51:05 +0000 (09:51 -0600)]
io_uring: convert madvise/fadvise to use io_cmd_type

Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: convert open/close path to use io_cmd_type
Jens Axboe [Tue, 24 May 2022 15:49:25 +0000 (09:49 -0600)]
io_uring: convert open/close path to use io_cmd_type

Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: convert timeout path to use io_cmd_type
Jens Axboe [Tue, 24 May 2022 15:45:22 +0000 (09:45 -0600)]
io_uring: convert timeout path to use io_cmd_type

Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: convert cancel path to use io_cmd_type
Jens Axboe [Tue, 24 May 2022 15:33:01 +0000 (09:33 -0600)]
io_uring: convert cancel path to use io_cmd_type

Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: convert the sync and fallocate paths to use io_cmd_type
Jens Axboe [Tue, 24 May 2022 15:30:45 +0000 (09:30 -0600)]
io_uring: convert the sync and fallocate paths to use io_cmd_type

They all share the same struct io_sync, convert them to use the
io_cmd_type approach instead.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: convert net related opcodes to use io_cmd_type
Jens Axboe [Tue, 24 May 2022 15:27:38 +0000 (09:27 -0600)]
io_uring: convert net related opcodes to use io_cmd_type

This converts accept, connect, send/recv, sendmsg/recvmsg, shutdown, and
socket to use io_cmd_type.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: remove recvmsg knowledge from io_arm_poll_handler()
Jens Axboe [Tue, 24 May 2022 15:24:42 +0000 (09:24 -0600)]
io_uring: remove recvmsg knowledge from io_arm_poll_handler()

There's a special case for recvmsg with MSG_ERRQUEUE set. This is
problematic as it means the core needs to know about this special
request type.

For now, just add a generic flag for it.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: convert poll_update path to use io_cmd_type
Jens Axboe [Tue, 24 May 2022 15:16:40 +0000 (09:16 -0600)]
io_uring: convert poll_update path to use io_cmd_type

Remove struct io_poll_update from io_kiocb, and convert the poll path to
use the io_cmd_type approach instead.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: convert poll path to use io_cmd_type
Jens Axboe [Tue, 24 May 2022 15:13:46 +0000 (09:13 -0600)]
io_uring: convert poll path to use io_cmd_type

Remove struct io_poll_iocb from io_kiocb, and convert the poll path to
use the io_cmd_type approach instead.

While at it, rename io_poll_iocb to io_poll which is consistent with the
other request type private structures.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: convert read/write path to use io_cmd_type
Jens Axboe [Mon, 13 Jun 2022 12:57:44 +0000 (06:57 -0600)]
io_uring: convert read/write path to use io_cmd_type

Remove struct io_rw from io_kiocb, and convert the read/write path to
use the io_cmd_type approach instead.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: add generic command payload type to struct io_kiocb
Jens Axboe [Tue, 24 May 2022 14:32:05 +0000 (08:32 -0600)]
io_uring: add generic command payload type to struct io_kiocb

Each opcode generally has a command structure in io_kiocb which it can
use to store data associated with that request.

In preparation for having the core layer not know about what's inside
these fields, add a generic io_cmd_data type and put in the union as
well.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: move req async preparation into opcode handler
Jens Axboe [Mon, 23 May 2022 23:30:37 +0000 (17:30 -0600)]
io_uring: move req async preparation into opcode handler

Define an io_op_def->prep_async() handler and push the async preparation
to there. Since we now have that, we can drop ->needs_async_setup, as
they mean the same thing.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: move to separate directory
Jens Axboe [Mon, 23 May 2022 23:05:03 +0000 (17:05 -0600)]
io_uring: move to separate directory

In preparation for splitting io_uring up a bit, move it into its own
top level directory. It didn't really belong in fs/ anyway, as it's
not a file system only API.

This adds io_uring/ and moves the core files in there, and updates the
MAINTAINERS file for the new location.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: define a 'prep' and 'issue' handler for each opcode
Jens Axboe [Mon, 23 May 2022 22:56:21 +0000 (16:56 -0600)]
io_uring: define a 'prep' and 'issue' handler for each opcode

Rather than have two giant switches for doing request preparation and
then for doing request issue, add a prep and issue handler for each
of them in the io_op_defs[] request definition.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoMerge branch 'io_uring-5.19' into for-5.20/io_uring
Jens Axboe [Thu, 21 Jul 2022 14:33:52 +0000 (08:33 -0600)]
Merge branch 'io_uring-5.19' into for-5.20/io_uring

* io_uring-5.19:
  io_uring: do not recycle buffer in READV
  io_uring: fix free of unallocated buffer list

3 years agoio_uring: do not recycle buffer in READV io_uring-5.19 io_uring-5.19-2022-07-21
Dylan Yudaken [Thu, 21 Jul 2022 13:13:25 +0000 (06:13 -0700)]
io_uring: do not recycle buffer in READV

READV cannot recycle buffers as it would lose some of the data required to
reimport that buffer.

Reported-by: Ammar Faizi <ammarfaizi2@gnuweeb.org>
Fixes: b66e65f41426 ("io_uring: never call io_buffer_select() for a buffer re-select")
Signed-off-by: Dylan Yudaken <dylany@fb.com>
Link: https://lore.kernel.org/r/20220721131325.624788-1-dylany@fb.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: fix free of unallocated buffer list
Dylan Yudaken [Thu, 21 Jul 2022 11:01:15 +0000 (04:01 -0700)]
io_uring: fix free of unallocated buffer list

in the error path of io_register_pbuf_ring, only free bl if it was
allocated.

Reported-by: Dipanjan Das <mail.dipanjan.das@gmail.com>
Fixes: c7fb19428d67 ("io_uring: add support for ring mapped supplied buffers")
Signed-off-by: Dylan Yudaken <dylany@fb.com>
Reviewed-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/all/CANX2M5bXKw1NaHdHNVqssUUaBCs8aBpmzRNVEYEvV0n44P7ioA@mail.gmail.com/
Link: https://lore.kernel.org/all/CANX2M5YiZBXU3L6iwnaLs-HHJXRvrxM8mhPDiMDF9Y9sAvOHUA@mail.gmail.com/
Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoLinux 5.19-rc7 v5.19-rc7
Linus Torvalds [Sun, 17 Jul 2022 20:30:22 +0000 (13:30 -0700)]
Linux 5.19-rc7

3 years agoMerge tag 'drm-intel-fixes-2022-07-17' of git://anongit.freedesktop.org/drm/drm-intel
Linus Torvalds [Sun, 17 Jul 2022 20:08:03 +0000 (13:08 -0700)]
Merge tag 'drm-intel-fixes-2022-07-17' of git://anongit.freedesktop.org/drm/drm-intel

Pull intel drm build fix from Rodrigo Vivi:
 "Our 'dim' flow has a problem with fixes of fixes getting missed. We
  need to take a look on that later.

  Meanwhile, please allow me to quickly propagate this fix for the
  32-bit build issue here upstream"

* tag 'drm-intel-fixes-2022-07-17' of git://anongit.freedesktop.org/drm/drm-intel:
  drm/i915/ttm: fix 32b build

3 years agoMerge tag 'perf-tools-fixes-for-v5.19-2022-07-17' of git://git.kernel.org/pub/scm...
Linus Torvalds [Sun, 17 Jul 2022 19:42:57 +0000 (12:42 -0700)]
Merge tag 'perf-tools-fixes-for-v5.19-2022-07-17' of git://git./linux/kernel/git/acme/linux

Pull perf tools fixes from Arnaldo Carvalho de Melo:

 - Fix SIGSEGV when processing syscall args in perf.data files in 'perf
   trace'

 - Sync kvm, msr-index and cpufeatures headers with the kernel sources

 - Fix 'convert perf time to TSC' 'perf test':
     - No need to open events twice
     - Fix finding correct event on hybrid systems

* tag 'perf-tools-fixes-for-v5.19-2022-07-17' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux:
  perf trace: Fix SIGSEGV when processing syscall args
  perf tests: Fix Convert perf time to TSC test for hybrid
  perf tests: Stop Convert perf time to TSC test opening events twice
  tools arch x86: Sync the msr-index.h copy with the kernel sources
  tools headers cpufeatures: Sync with the kernel sources
  tools headers UAPI: Sync linux/kvm.h with the kernel sources

3 years agodrm/i915/ttm: fix 32b build
Matthew Auld [Tue, 12 Jul 2022 17:40:50 +0000 (18:40 +0100)]
drm/i915/ttm: fix 32b build

Since segment_pages is no longer a compile time constant, it looks the
DIV_ROUND_UP(node->size, segment_pages) breaks the 32b build. Simplest
is just to use the ULL variant, but really we should need not need more
than u32 for the page alignment (also we are limited by that due to the
sg->length type), so also make it all u32.

Reported-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Fixes: aff1e0b09b54 ("drm/i915/ttm: fix sg_table construction")
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Nirmoy Das <nirmoy.das@linux.intel.com>
Reviewed-by: Nirmoy Das <nirmoy.das@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220712174050.592550-1-matthew.auld@intel.com
(cherry picked from commit 9306b2b2dfce6931241ef804783692cee526599c)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
3 years agoMerge tag 'perf_urgent_for_v5.19_rc7' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 17 Jul 2022 15:34:02 +0000 (08:34 -0700)]
Merge tag 'perf_urgent_for_v5.19_rc7' of git://git./linux/kernel/git/tip/tip

Pull perf fix from Borislav Petkov:

 - A single data race fix on the perf event cleanup path to avoid
   endless loops due to insufficient locking

* tag 'perf_urgent_for_v5.19_rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/core: Fix data race between perf_event_set_output() and perf_mmap_close()

3 years agoMerge tag 'x86_urgent_for_v5.19_rc7' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 17 Jul 2022 15:27:30 +0000 (08:27 -0700)]
Merge tag 'x86_urgent_for_v5.19_rc7' of git://git./linux/kernel/git/tip/tip

Pull x86 fixes from Borislav Petkov:

 - Improve the check whether the kernel supports WP mappings so that it
   can accomodate a XenPV guest due to how the latter is setting up the
   PAT machinery

  - Now that the retbleed nightmare is public, here's the first round of
    fallout fixes:

      * Fix a build failure on 32-bit due to missing include

      * Remove an untraining point in espfix64 return path

      * other small cleanups

* tag 'x86_urgent_for_v5.19_rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/bugs: Remove apostrophe typo
  um: Add missing apply_returns()
  x86/entry: Remove UNTRAIN_RET from native_irq_return_ldt
  x86/bugs: Mark retbleed_strings static
  x86/pat: Fix x86_has_pat_wp()
  x86/asm/32: Fix ANNOTATE_UNRET_SAFE use on 32-bit

3 years agoMerge tag 'gpio-fixes-for-v5.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 17 Jul 2022 14:58:19 +0000 (07:58 -0700)]
Merge tag 'gpio-fixes-for-v5.19-rc7' of git://git./linux/kernel/git/brgl/linux

Pull gpio fix from Bartosz Golaszewski:

 - fix a configfs attribute of the gpio-sim module

* tag 'gpio-fixes-for-v5.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
  gpio: sim: fix the chip_name configfs item

3 years agoMerge tag 'input-for-v5.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sun, 17 Jul 2022 14:52:46 +0000 (07:52 -0700)]
Merge tag 'input-for-v5.19-rc6' of git://git./linux/kernel/git/dtor/input

Pull input fixes from Dmitry Torokhov:

 - fix Goodix driver to properly behave on the Aya Neo Next

 - some more sanity checks in usbtouchscreen driver

 - a tweak in wm97xx driver in preparation for remove() to return void

 - a clarification in input core regarding units of measurement for
   resolution on touch events.

* tag 'input-for-v5.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: document the units for resolution of size axes
  Input: goodix - call acpi_device_fix_up_power() in some cases
  Input: wm97xx - make .remove() obviously always return 0
  Input: usbtouchscreen - add driver_info sanity check

3 years agoMerge tag 'for-v5.19-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux...
Linus Torvalds [Sun, 17 Jul 2022 14:45:51 +0000 (07:45 -0700)]
Merge tag 'for-v5.19-rc' of git://git./linux/kernel/git/sre/linux-power-supply

Pull power supply fixes from Sebastian Reichel:

 - power-supply core temperature interpolation regression fix for
   incorrect boundaries

 - ab8500 needs to destroy its work queues in error paths

 - Fix old DT refcount leak in arm-versatile

* tag 'for-v5.19-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply:
  power: supply: core: Fix boundary conditions in interpolation
  power/reset: arm-versatile: Fix refcount leak in versatile_reboot_probe
  power: supply: ab8500_fg: add missing destroy_workqueue in ab8500_fg_probe

3 years agoperf trace: Fix SIGSEGV when processing syscall args
Naveen N. Rao [Thu, 7 Jul 2022 09:09:00 +0000 (14:39 +0530)]
perf trace: Fix SIGSEGV when processing syscall args

On powerpc, 'perf trace' is crashing with a SIGSEGV when trying to
process a perf.data file created with 'perf trace record -p':

  #0  0x00000001225b8988 in syscall_arg__scnprintf_augmented_string <snip> at builtin-trace.c:1492
  #1  syscall_arg__scnprintf_filename <snip> at builtin-trace.c:1492
  #2  syscall_arg__scnprintf_filename <snip> at builtin-trace.c:1486
  #3  0x00000001225bdd9c in syscall_arg_fmt__scnprintf_val <snip> at builtin-trace.c:1973
  #4  syscall__scnprintf_args <snip> at builtin-trace.c:2041
  #5  0x00000001225bff04 in trace__sys_enter <snip> at builtin-trace.c:2319

That points to the below code in tools/perf/builtin-trace.c:
/*
 * If this is raw_syscalls.sys_enter, then it always comes with the 6 possible
 * arguments, even if the syscall being handled, say "openat", uses only 4 arguments
 * this breaks syscall__augmented_args() check for augmented args, as we calculate
 * syscall->args_size using each syscalls:sys_enter_NAME tracefs format file,
 * so when handling, say the openat syscall, we end up getting 6 args for the
 * raw_syscalls:sys_enter event, when we expected just 4, we end up mistakenly
 * thinking that the extra 2 u64 args are the augmented filename, so just check
 * here and avoid using augmented syscalls when the evsel is the raw_syscalls one.
 */
if (evsel != trace->syscalls.events.sys_enter)
augmented_args = syscall__augmented_args(sc, sample, &augmented_args_size, trace->raw_augmented_syscalls_args_size);

As the comment points out, we should not be trying to augment the args
for raw_syscalls. However, when processing a perf.data file, we are not
initializing those properly. Fix the same.

Reported-by: Claudio Carvalho <cclaudio@linux.ibm.com>
Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lore.kernel.org/lkml/20220707090900.572584-1-naveen.n.rao@linux.vnet.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
3 years agoperf tests: Fix Convert perf time to TSC test for hybrid
Adrian Hunter [Wed, 13 Jul 2022 12:34:59 +0000 (15:34 +0300)]
perf tests: Fix Convert perf time to TSC test for hybrid

The test does not always correctly determine the number of events for
hybrids, nor allow for more than 1 evsel when parsing.

Fix by iterating the events actually created and getting the correct
evsel for the events processed.

Fixes: d9da6f70eb235110 ("perf tests: Support 'Convert perf time to TSC' test for hybrid")
Reviewed-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Link: https://lore.kernel.org/r/20220713123459.24145-3-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
3 years agoperf tests: Stop Convert perf time to TSC test opening events twice
Adrian Hunter [Wed, 13 Jul 2022 12:34:58 +0000 (15:34 +0300)]
perf tests: Stop Convert perf time to TSC test opening events twice

Do not call evlist__open() twice.

Fixes: 5bb017d4b97a0f13 ("perf test: Fix error message for test case 71 on s390, where it is not supported")
Reviewed-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Link: https://lore.kernel.org/r/20220713123459.24145-2-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
3 years agotools arch x86: Sync the msr-index.h copy with the kernel sources
Arnaldo Carvalho de Melo [Thu, 1 Jul 2021 16:32:18 +0000 (13:32 -0300)]
tools arch x86: Sync the msr-index.h copy with the kernel sources

To pick up the changes from these csets:

  4ad3278df6fe2b08 ("x86/speculation: Disable RRSBA behavior")
  d7caac991feeef1b ("x86/cpu/amd: Add Spectral Chicken")

That cause no changes to tooling:

  $ tools/perf/trace/beauty/tracepoints/x86_msr.sh > before
  $ cp arch/x86/include/asm/msr-index.h tools/arch/x86/include/asm/msr-index.h
  $ tools/perf/trace/beauty/tracepoints/x86_msr.sh > after
  $ diff -u before after
  $

Just silences this perf build warning:

  Warning: Kernel ABI header at 'tools/arch/x86/include/asm/msr-index.h' differs from latest version at 'arch/x86/include/asm/msr-index.h'
  diff -u tools/arch/x86/include/asm/msr-index.h arch/x86/include/asm/msr-index.h

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Pawan Gupta <pawan.kumar.gupta@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/lkml/YtQTm9wsB3hxQWvy@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
3 years agotools headers cpufeatures: Sync with the kernel sources
Arnaldo Carvalho de Melo [Thu, 1 Jul 2021 16:39:15 +0000 (13:39 -0300)]
tools headers cpufeatures: Sync with the kernel sources

To pick the changes from:

  f43b9876e857c739 ("x86/retbleed: Add fine grained Kconfig knobs")
  a149180fbcf336e9 ("x86: Add magic AMD return-thunk")
  15e67227c49a5783 ("x86: Undo return-thunk damage")
  369ae6ffc41a3c11 ("x86/retpoline: Cleanup some #ifdefery")
  4ad3278df6fe2b08 x86/speculation: Disable RRSBA behavior
  26aae8ccbc197223 x86/cpu/amd: Enumerate BTC_NO
  9756bba28470722d x86/speculation: Fill RSB on vmexit for IBRS
  3ebc170068885b6f x86/bugs: Add retbleed=ibpb
  2dbb887e875b1de3 x86/entry: Add kernel IBRS implementation
  6b80b59b35557065 x86/bugs: Report AMD retbleed vulnerability
  a149180fbcf336e9 x86: Add magic AMD return-thunk
  15e67227c49a5783 x86: Undo return-thunk damage
  a883d624aed463c8 x86/cpufeatures: Move RETPOLINE flags to word 11
  51802186158c74a0 x86/speculation/mmio: Enumerate Processor MMIO Stale Data bug

This only causes these perf files to be rebuilt:

  CC       /tmp/build/perf/bench/mem-memcpy-x86-64-asm.o
  CC       /tmp/build/perf/bench/mem-memset-x86-64-asm.o

And addresses this perf build warning:

  Warning: Kernel ABI header at 'tools/arch/x86/include/asm/cpufeatures.h' differs from latest version at 'arch/x86/include/asm/cpufeatures.h'
  diff -u tools/arch/x86/include/asm/cpufeatures.h arch/x86/include/asm/cpufeatures.h
  Warning: Kernel ABI header at 'tools/arch/x86/include/asm/disabled-features.h' differs from latest version at 'arch/x86/include/asm/disabled-features.h'
  diff -u tools/arch/x86/include/asm/disabled-features.h arch/x86/include/asm/disabled-features.h

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org
Link: https://lore.kernel.org/lkml/YtQM40VmiLTkPND2@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
3 years agotools headers UAPI: Sync linux/kvm.h with the kernel sources
Arnaldo Carvalho de Melo [Sun, 9 May 2021 12:39:02 +0000 (09:39 -0300)]
tools headers UAPI: Sync linux/kvm.h with the kernel sources

To pick the changes in:

  1b870fa5573e260b ("kvm: stats: tell userspace which values are boolean")

That just rebuilds perf, as these patches don't add any new KVM ioctl to
be harvested for the the 'perf trace' ioctl syscall argument
beautifiers.

This is also by now used by tools/testing/selftests/kvm/, a simple test
build succeeded.

This silences this perf build warning:

  Warning: Kernel ABI header at 'tools/include/uapi/linux/kvm.h' differs from latest version at 'include/uapi/linux/kvm.h'
  diff -u tools/include/uapi/linux/kvm.h include/uapi/linux/kvm.h

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Link: http://lore.kernel.org/lkml/YtQLDvQrBhJNl3n5@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
3 years agoMerge tag 'for-5.19-rc7-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave...
Linus Torvalds [Sat, 16 Jul 2022 20:48:55 +0000 (13:48 -0700)]
Merge tag 'for-5.19-rc7-tag' of git://git./linux/kernel/git/kdave/linux

Pull btrfs reverts from David Sterba:
 "Due to a recent report [1] we need to revert the radix tree to xarray
  conversion patches.

  There's a problem with sleeping under spinlock, when xa_insert could
  allocate memory under pressure. We use GFP_NOFS so this is a real
  problem that we unfortunately did not discover during review.

  I'm sorry to do such change at rc6 time but the revert is IMO the
  safer option, there are patches to use mutex instead of the spin locks
  but that would need more testing. The revert branch has been tested on
  a few setups, all seem ok.

  The conversion to xarray will be revisited in the future"

Link: https://lore.kernel.org/linux-btrfs/cover.1657097693.git.fdmanana@suse.com/
* tag 'for-5.19-rc7-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
  Revert "btrfs: turn delayed_nodes_tree into an XArray"
  Revert "btrfs: turn name_cache radix tree into XArray in send_ctx"
  Revert "btrfs: turn fs_info member buffer_radix into XArray"
  Revert "btrfs: turn fs_roots_radix in btrfs_fs_info into an XArray"

3 years agoMerge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Linus Torvalds [Sat, 16 Jul 2022 18:45:40 +0000 (11:45 -0700)]
Merge tag 'scsi-fixes' of git://git./linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "Six small and reasonably obvious fixes, all in drivers"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: pm80xx: Set stopped phy's linkrate to Disabled
  scsi: pm80xx: Fix 'Unknown' max/min linkrate
  scsi: ufs: core: Fix missing clk change notification on host reset
  scsi: ufs: core: Drop loglevel of WriteBoost message
  scsi: megaraid: Clear READ queue map's nr_queues
  scsi: target: Fix WRITE_SAME No Data Buffer crash

3 years agoMerge tag 'block-5.19-2022-07-15' of git://git.kernel.dk/linux-block
Linus Torvalds [Sat, 16 Jul 2022 18:40:10 +0000 (11:40 -0700)]
Merge tag 'block-5.19-2022-07-15' of git://git.kernel.dk/linux-block

Pull block fixes from Jens Axboe:
 "Two NVMe fixes, and a regression fix for the core block layer from
  this merge window"

* tag 'block-5.19-2022-07-15' of git://git.kernel.dk/linux-block:
  block: fix missing blkcg_bio_issue_init
  nvme: fix block device naming collision
  nvme-pci: fix freeze accounting for error handling

3 years agoMerge tag 'usb-5.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Linus Torvalds [Sat, 16 Jul 2022 18:21:15 +0000 (11:21 -0700)]
Merge tag 'usb-5.19-rc7' of git://git./linux/kernel/git/gregkh/usb

Pull USB driver fixes from Greg KH:
 "Here are some small USB driver fixes and new device ids for 5.19-rc7.
  They include:

   - new usb-serial driver ids

   - typec uevent fix

   - uvc gadget driver fix

   - dwc3 driver fixes

   - ehci-fsl driver fix

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'usb-5.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  USB: serial: ftdi_sio: add Belimo device ids
  drivers/usb/host/ehci-fsl: Fix interrupt setup in host mode.
  usb: gadget: uvc: fix changing interface name via configfs
  usb: typec: add missing uevent when partner support PD
  usb: dwc3-am62: remove unnecesary clk_put()
  usb: dwc3: gadget: Fix event pending check

3 years agoMerge tag 'tty-5.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Linus Torvalds [Sat, 16 Jul 2022 18:11:56 +0000 (11:11 -0700)]
Merge tag 'tty-5.19-rc7' of git://git./linux/kernel/git/gregkh/tty

Pull tty and serial driver fixes from Greg KH:
 "Here are some TTY and Serial driver fixes for 5.19-rc7. They resolve a
  number of reported problems including:

   - longtime bug in pty_write() that has been reported in the past.

   - 8250 driver fixes

   - new serial device ids

   - vt overlapping data copy bugfix

   - other tiny serial driver bugfixes

  All of these have been in linux-next for a while with no reported
  problems"

* tag 'tty-5.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
  tty: use new tty_insert_flip_string_and_push_buffer() in pty_write()
  tty: extract tty_flip_buffer_commit() from tty_flip_buffer_push()
  serial: 8250: dw: Fix the macro RZN1_UART_xDMACR_8_WORD_BURST
  vt: fix memory overlapping when deleting chars in the buffer
  serial: mvebu-uart: correctly report configured baudrate value
  serial: 8250: Fix PM usage_count for console handover
  serial: 8250: fix return error code in serial8250_request_std_resource()
  serial: stm32: Clear prev values before setting RTS delays
  tty: Add N_CAN327 line discipline ID for ELM327 based CAN driver
  serial: 8250: Fix __stop_tx() & DMA Tx restart races
  serial: pl011: UPSTAT_AUTORTS requires .throttle/unthrottle
  tty: serial: samsung_tty: set dma burst_size to 1
  serial: 8250: dw: enable using pdata with ACPI

3 years agoMerge tag 's390-5.19-6' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Linus Torvalds [Sat, 16 Jul 2022 18:00:40 +0000 (11:00 -0700)]
Merge tag 's390-5.19-6' of git://git./linux/kernel/git/s390/linux

Pull s390 fixes from Alexander Gordeev:

 - Fix building of out-of-tree kernel modules without a pre-built kernel
   in case CONFIG_EXPOLINE_EXTERN=y.

 - Fix a reference counting error that could prevent unloading of zcrypt
   modules.

* tag 's390-5.19-6' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390/ap: fix error handling in __verify_queue_reservations()
  s390/nospec: remove unneeded header includes
  s390/nospec: build expoline.o for modules_prepare target