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| author | Linus Walleij <linusw@kernel.org> | 2026-06-30 18:05:56 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@armlinux.org.uk> | 2026-08-05 16:48:11 +0100 |
| commit | bb3b2cfeb206f5b10b859e134651b54120e3f530 (patch) | |
| tree | 6717fcea088ba5c5f15002a48101fa2537135bf2 /io_uring/opdef.h | |
| download | linux-stable-bb3b2cfeb206f5b10b859e134651b54120e3f530.tar.gz linux-stable-bb3b2cfeb206f5b10b859e134651b54120e3f530.zip | |
ARM: 9480/1: entry: expand comment in __switch_tografted
As per discussion between the developers in the mail thread
linked, expand the comment in __switch_to so that readers
of the code understand what is going on.
Suggested-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Linus Walleij <linusw@kernel.org>>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Diffstat (limited to 'io_uring/opdef.h')
| -rw-r--r-- | io_uring/opdef.h | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/io_uring/opdef.h b/io_uring/opdef.h new file mode 100644 index 000000000..667f981e6 --- /dev/null +++ b/io_uring/opdef.h @@ -0,0 +1,58 @@ +// SPDX-License-Identifier: GPL-2.0 +#ifndef IOU_OP_DEF_H +#define IOU_OP_DEF_H + +struct io_uring_bpf_ctx; + +struct io_issue_def { + /* needs req->file assigned */ + unsigned needs_file : 1; + /* should block plug */ + unsigned plug : 1; + /* supports ioprio */ + unsigned ioprio : 1; + /* supports iopoll */ + unsigned iopoll : 1; + /* op supports buffer selection */ + unsigned buffer_select : 1; + /* hash wq insertion if file is a regular file */ + unsigned hash_reg_file : 1; + /* unbound wq insertion if file is a non-regular file */ + unsigned unbound_nonreg_file : 1; + /* set if opcode supports polled "wait" */ + unsigned pollin : 1; + unsigned pollout : 1; + unsigned poll_exclusive : 1; + /* skip auditing */ + unsigned audit_skip : 1; + /* vectored opcode, set if 1) vectored, and 2) handler needs to know */ + unsigned vectored : 1; + /* set to 1 if this opcode uses 128b sqes in a mixed sq */ + unsigned is_128 : 1; + + /* size of async data needed, if any */ + unsigned short async_size; + + /* bpf filter pdu size, if any */ + unsigned short filter_pdu_size; + + int (*issue)(struct io_kiocb *, unsigned int); + int (*prep)(struct io_kiocb *, const struct io_uring_sqe *); + void (*filter_populate)(struct io_uring_bpf_ctx *, struct io_kiocb *); +}; + +struct io_cold_def { + const char *name; + + void (*sqe_copy)(struct io_kiocb *); + void (*cleanup)(struct io_kiocb *); + void (*fail)(struct io_kiocb *); +}; + +extern const struct io_issue_def io_issue_defs[]; +extern const struct io_cold_def io_cold_defs[]; + +bool io_uring_op_supported(u8 opcode); + +void io_uring_optable_init(void); +#endif |