Pass io_uring_ctx-id to uring_cmd driver, and prepare for supporting
io_uring ctx or task exit notifier.
Signed-off-by: Ming Lei <ming.lei@xxxxxxxxxx>
---
include/linux/io_uring.h | 6 +++++-
io_uring/uring_cmd.c | 1 +
2 files changed, 6 insertions(+), 1 deletion(-)
diff --git a/include/linux/io_uring.h b/include/linux/io_uring.h
index ec9714e36477..c395807bd7cf 100644
--- a/include/linux/io_uring.h
+++ b/include/linux/io_uring.h
@@ -33,7 +33,11 @@ struct io_uring_cmd {
};
u32 cmd_op;
u32 flags;
- u8 pdu[32]; /* available inline for free use */
+ union {
+ /* driver needs to save ctx_id */
+ u32 ctx_id;
+ u8 pdu[32]; /* available inline for free use */
+ };
};
static inline const void *io_uring_sqe_cmd(const struct io_uring_sqe *sqe)
diff --git a/io_uring/uring_cmd.c b/io_uring/uring_cmd.c
index 537795fddc87..c54c627fb6b9 100644
--- a/io_uring/uring_cmd.c
+++ b/io_uring/uring_cmd.c
@@ -105,6 +105,7 @@ int io_uring_cmd_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
req->imu = ctx->user_bufs[index];
io_req_set_rsrc_node(req, ctx, 0);
}
+ ioucmd->ctx_id = req->ctx->id;
ioucmd->sqe = sqe;
ioucmd->cmd_op = READ_ONCE(sqe->cmd_op);
return 0;
--
2.40.1
