Pavel Begunkov
581711c466
io_uring/net: save address for sendzc async execution
...
We usually copy all bits that a request needs from the userspace for
async execution, so the userspace can keep them on the stack. However,
send zerocopy violates this pattern for addresses and may reloads it
e.g. from io-wq. Save the address if any in ->async_data as usual.
Reported-by: Stefan Metzmacher <metze@samba.org >
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com >
Link: https://lore.kernel.org/r/d7512d7aa9abcd36e9afe1a4d292a24cb2d157e5.1661342812.git.asml.silence@gmail.com
[axboe: fold in incremental fix]
Signed-off-by: Jens Axboe <axboe@kernel.dk >
2022-08-25 07:52:30 -06:00
Pavel Begunkov
4379d5f15b
io_uring: rename IORING_OP_FILES_UPDATE
...
IORING_OP_FILES_UPDATE will be a more generic opcode serving different
resource types, rename it into IORING_OP_RSRC_UPDATE and add subtype
handling.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com >
Link: https://lore.kernel.org/r/0a907133907d9af3415a8a7aa1802c6aa97c03c6.1657643355.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk >
2022-07-24 18:41:07 -06:00
Pavel Begunkov
06a5464be8
io_uring: wire send zc request type
...
Add a new io_uring opcode IORING_OP_SENDZC. The main distinction from
IORING_OP_SEND is that the user should specify a notification slot
index in sqe::notification_idx and the buffers are safe to reuse only
when the used notification is flushed and completes.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com >
Link: https://lore.kernel.org/r/a80387c6a68ce9cf99b3b6ef6f71068468761fb7.1657643355.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk >
2022-07-24 18:41:07 -06:00
Pavel Begunkov
27a9d66fec
io_uring: kill extra io_uring_types.h includes
...
io_uring/io_uring.h already includes io_uring_types.h, no need to
include it every time. Kill it in a bunch of places, it prepares us for
following patches.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com >
Link: https://lore.kernel.org/r/94d8c943fbe0ef949981c508ddcee7fc1c18850f.1655384063.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk >
2022-07-24 18:39:14 -06:00
Jens Axboe
d9b57aa3cf
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 >
2022-07-24 18:39:12 -06:00
