diff options
| author | Anuj Gupta <anuj20.g@samsung.com> | 2024-12-05 11:51:09 +0530 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2025-01-10 17:12:42 -0700 |
| commit | 94d57442e56d2ad2ca20d096040b8ae6f216a921 (patch) | |
| tree | 2871a0d76f926c05d9be24a31c2ba7968d0b77ea | |
| parent | b08e02045002e0412441d5243b0ee1a9bfc3952b (diff) | |
io_uring: expose read/write attribute capability
After commit 9a213d3b80c0, we can pass additional attributes along with
read/write. However, userspace doesn't know that. Add a new feature flag
IORING_FEAT_RW_ATTR, to notify the userspace that the kernel has this
ability.
Signed-off-by: Anuj Gupta <anuj20.g@samsung.com>
Reviewed-by: Li Zetao <lizetao1@huawei.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Tested-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/20241205062109.1788-1-anuj20.g@samsung.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
| -rw-r--r-- | include/uapi/linux/io_uring.h | 1 | ||||
| -rw-r--r-- | io_uring/io_uring.c | 3 |
2 files changed, 3 insertions, 1 deletions
diff --git a/include/uapi/linux/io_uring.h b/include/uapi/linux/io_uring.h index 38f0d6b10eaf..e11c82638527 100644 --- a/include/uapi/linux/io_uring.h +++ b/include/uapi/linux/io_uring.h @@ -577,6 +577,7 @@ struct io_uring_params { #define IORING_FEAT_REG_REG_RING (1U << 13) #define IORING_FEAT_RECVSEND_BUNDLE (1U << 14) #define IORING_FEAT_MIN_TIMEOUT (1U << 15) +#define IORING_FEAT_RW_ATTR (1U << 16) /* * io_uring_register(2) opcodes and arguments diff --git a/io_uring/io_uring.c b/io_uring/io_uring.c index 92ba2fdcd087..af03e9973b58 100644 --- a/io_uring/io_uring.c +++ b/io_uring/io_uring.c @@ -3713,7 +3713,8 @@ static __cold int io_uring_create(unsigned entries, struct io_uring_params *p, IORING_FEAT_EXT_ARG | IORING_FEAT_NATIVE_WORKERS | IORING_FEAT_RSRC_TAGS | IORING_FEAT_CQE_SKIP | IORING_FEAT_LINKED_FILE | IORING_FEAT_REG_REG_RING | - IORING_FEAT_RECVSEND_BUNDLE | IORING_FEAT_MIN_TIMEOUT; + IORING_FEAT_RECVSEND_BUNDLE | IORING_FEAT_MIN_TIMEOUT | + IORING_FEAT_RW_ATTR; if (copy_to_user(params, p, sizeof(*p))) { ret = -EFAULT; |