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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
enough in order for the LBR MSR access to not #GP
-----BEGIN PGP SIGNATURE-----
iQIzBAABCgAdFiEEzv7L6UO9uDPlPSfHEsHwGGHeVUoFAmLdD5sACgkQEsHwGGHe
VUoaDA//Yiir+zrTjbCOSnma/pgn3wbWQVe2Y1E1+Tj+av3hBuzTdoAqgDDrFTQ7
zKwJBjGRb+yQduFbLpLCD9BittX2yk2WGIP3gvLB0ffCLMKU/NOCSKPDZ+HDtvPE
MkJ1usBLhAYbExgoQVI0Cu9dBL5AR1hKy+ZAw/W7uUhRdR7g9B2gLd1Hg261jmLS
+imOAQiUgbCAl8d7kMk9lB5gCl3j5DZ+FgpCTYWV4n87cvGBIjAESyjhfAKXRwmg
Y7acUtOWB935LleA9su2HCtejeIhRoLlV5qUrc0oMUiM6GSymkd6PBRykQ16kajL
MzKb56daTiK8q4sEhmte0grNNNdyY0nVp2YmvzQ1Cf16Au0XvHIjhLg9WWI+WYmd
rSP1OXrGoUQ9C2Vex008ajIPQFVDCgRV4euzE8CveiBnNzVp6JCScjNlvVpOgaxM
04Yesok4nAhJYSYLg1IWXuF5caOyNODJYRNj18ypt2FCEJdDxuDwqVL8DW/oqFz5
JxTRAuyvojhir/0ztDdMiQ9IkMTjdSboIp1gbjkj0C1J0gJq8Bh9tqNK/uChw58J
UY9rojGnAa2JEXxQ3P5Dj/zSfw5FoCe7VgACrw+lXw0sJ3CKh08ojRjofP4ET+s1
77ru8deYJ4sy0IyGLml6WpA3hWwUvkjxWVx1cdnyeBHW9oc7fGQ=
=nYW6
-----END PGP SIGNATURE-----
Merge tag 'perf_urgent_for_v5.19_rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fix from Borislav Petkov:
- Reorganize the perf LBR init code so that a TSX quirk is applied
early enough in order for the LBR MSR access to not #GP
* tag 'perf_urgent_for_v5.19_rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf/x86/intel/lbr: Fix unchecked MSR access error on HSW
-----BEGIN PGP SIGNATURE-----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=jolV
-----END PGP SIGNATURE-----
Merge tag 'sched_urgent_for_v5.19_rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fix from Borislav Petkov:
"A single fix to correct a wrong BUG_ON() condition for deboosted
tasks"
* tag 'sched_urgent_for_v5.19_rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/deadline: Fix BUG_ON condition for deboosted tasks
work if even needed, at all).
- Prevent return thunks patching of the LKDTM modules as it is not needed there
- Avoid writing the SPEC_CTRL MSR on every kernel entry on eIBRS parts
- Enhance error output of apply_returns() when it fails to patch a return thunk
- A sparse fix to the sev-guest module
- Protect EFI fw calls by issuing an IBPB on AMD
-----BEGIN PGP SIGNATURE-----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=aSDG
-----END PGP SIGNATURE-----
Merge tag 'x86_urgent_for_v5.19_rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Borislav Petkov:
"A couple more retbleed fallout fixes.
It looks like their urgency is decreasing so it seems like we've
managed to catch whatever snafus the limited -rc testing has exposed.
Maybe we're getting ready... :)
- Make retbleed mitigations 64-bit only (32-bit will need a bit more
work if even needed, at all).
- Prevent return thunks patching of the LKDTM modules as it is not
needed there
- Avoid writing the SPEC_CTRL MSR on every kernel entry on eIBRS
parts
- Enhance error output of apply_returns() when it fails to patch a
return thunk
- A sparse fix to the sev-guest module
- Protect EFI fw calls by issuing an IBPB on AMD"
* tag 'x86_urgent_for_v5.19_rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/speculation: Make all RETbleed mitigations 64-bit only
lkdtm: Disable return thunks in rodata.c
x86/bugs: Warn when "ibrs" mitigation is selected on Enhanced IBRS parts
x86/alternative: Report missing return thunk details
virt: sev-guest: Pass the appropriate argument type to iounmap()
x86/amd: Use IBPB for firmware calls
