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io_uring/rsrc: rename and export IO_IMU_DEST / IO_IMU_SOURCE

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Rename IO_IMU_DEST and IO_IMU_SOURCE to IO_BUF_DEST and IO_BUF_SOURCE
and export it so subsystems may use it.

This is needed by the io_buffer_register_bvec() path for callers who may
need the buffer to be both readable and writable.

Signed-off-by: Joanne Koong <joannelkoong@gmail.com>
Link: https://patch.msgid.link/20260612184840.4058966-5-joannelkoong@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
This commit is contained in:
Joanne Koong
2026-06-12 11:48:40 -07:00
committed by Miklos Szeredi
parent bd62a2cfff
commit 95961b72c5
4 changed files with 7 additions and 7 deletions
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5
include/linux/io_uring_types.h
View File

@@ -44,6 +44,11 @@ enum io_uring_cmd_flags {
IO_URING_F_COMPAT = (1 << 12),
};
enum {
IO_BUF_DEST = 1 << ITER_DEST,
IO_BUF_SOURCE = 1 << ITER_SOURCE,
};
struct iou_loop_params;
struct io_wq_work_node {

2
io_uring/io_uring.c
View File

@@ -3245,7 +3245,7 @@ static int __init io_uring_init(void)
io_uring_optable_init();
/* imu->dir is u8 */
BUILD_BUG_ON((IO_IMU_DEST | IO_IMU_SOURCE) > U8_MAX);
BUILD_BUG_ON((IO_BUF_DEST | IO_BUF_SOURCE) > U8_MAX);
/*
* Allow user copy in the per-command field, which starts after the

2
io_uring/rsrc.c
View File

@@ -912,7 +912,7 @@ static struct io_rsrc_node *io_sqe_buffer_register(struct io_ring_ctx *ctx,
imu->release = io_release_ubuf;
imu->priv = imu;
imu->flags = 0;
imu->dir = IO_IMU_DEST | IO_IMU_SOURCE;
imu->dir = IO_BUF_DEST | IO_BUF_SOURCE;
if (coalesced)
imu->folio_shift = data.folio_shift;
refcount_set(&imu->refs, 1);

5
io_uring/rsrc.h
View File

@@ -23,11 +23,6 @@ struct io_rsrc_node {
};
};
enum {
IO_IMU_DEST = 1 << ITER_DEST,
IO_IMU_SOURCE = 1 << ITER_SOURCE,
};
enum {
IO_REGBUF_F_KBUF = 1,
};