diff options
| author | Ming Lei <ming.lei@redhat.com> | 2024-11-11 18:13:18 +0800 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2024-11-11 08:11:37 -0700 |
| commit | a43e236fb9aef4528f2bd24095d1f348030f5d9d (patch) | |
| tree | ebae170671ba3a9407d0ac3fa88dcab98ffe9b6d /io_uring | |
| parent | 039c878db7add23c1c9ea18424c442cce76670f9 (diff) | |
io_uring/uring_cmd: fix buffer index retrieval
Add back buffer index retrieval for IORING_URING_CMD_FIXED.
Reported-by: Guangwu Zhang <guazhang@redhat.com>
Cc: Jeff Moyer <jmoyer@redhat.com>
Fixes: b54a14041ee6 ("io_uring/rsrc: add io_rsrc_node_lookup() helper")
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Kanchan Joshi <joshi.k@samsung.com>
Reviewed-by: Anuj Gupta <anuj20.g@samsung.com>
Tested-by: Guangwu Zhang <guazhang@redhat.com>
Link: https://lore.kernel.org/r/20241111101318.1387557-1-ming.lei@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'io_uring')
| -rw-r--r-- | io_uring/uring_cmd.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/io_uring/uring_cmd.c b/io_uring/uring_cmd.c index b62965f58f30..e9d99d3ecc34 100644 --- a/io_uring/uring_cmd.c +++ b/io_uring/uring_cmd.c @@ -210,8 +210,9 @@ int io_uring_cmd_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe) if (ioucmd->flags & IORING_URING_CMD_FIXED) { struct io_ring_ctx *ctx = req->ctx; struct io_rsrc_node *node; + u16 index = READ_ONCE(sqe->buf_index); - node = io_rsrc_node_lookup(&ctx->buf_table, req->buf_index); + node = io_rsrc_node_lookup(&ctx->buf_table, index); if (unlikely(!node)) return -EFAULT; /* |