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git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
io_uring/cmd: give inline space in request to cmds
Some io_uring commands can use some inline space in io_kiocb. We have 32
bytes in struct io_uring_cmd, expose it.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/7ca779a61ee5e166e535d70df9c7f07b15d8a0ce.1726072086.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
authored by
Pavel Begunkov
and committed by
Jens Axboe
a6ccb48e
6746ee4c
+9
+9
include/linux/io_uring/cmd.h
+9
include/linux/io_uring/cmd.h
···
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return sqe->cmd;
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}
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static inline void io_uring_cmd_private_sz_check(size_t cmd_sz)
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{
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BUILD_BUG_ON(cmd_sz > sizeof_field(struct io_uring_cmd, pdu));
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}
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#define io_uring_cmd_to_pdu(cmd, pdu_type) ( \
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io_uring_cmd_private_sz_check(sizeof(pdu_type)), \
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((pdu_type *)&(cmd)->pdu) \
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)
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#if defined(CONFIG_IO_URING)
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int io_uring_cmd_import_fixed(u64 ubuf, unsigned long len, int rw,
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struct iov_iter *iter, void *ioucmd);