diff options
| author | Jens Axboe <axboe@kernel.dk> | 2024-10-27 16:08:31 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2024-11-02 22:45:30 +0100 |
| commit | b54a14041ee6444692d95ff38c8b3d1af682aa17 (patch) | |
| tree | 658c5839cb2eb6dd19429c5e4911ea9cd727d664 /io_uring/net.c | |
| parent | io_uring/rsrc: unify file and buffer resource tables (diff) | |
| download | linux-b54a14041ee6444692d95ff38c8b3d1af682aa17.tar.xz linux-b54a14041ee6444692d95ff38c8b3d1af682aa17.zip | |
io_uring/rsrc: add io_rsrc_node_lookup() helper
There are lots of spots open-coding this functionality, add a generic
helper that does the node lookup in a speculation safe way.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'io_uring/net.c')
| -rw-r--r-- | io_uring/net.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/io_uring/net.c b/io_uring/net.c index 3e1f31574abb..2f7b334ed708 100644 --- a/io_uring/net.c +++ b/io_uring/net.c @@ -1343,13 +1343,11 @@ static int io_send_zc_import(struct io_kiocb *req, unsigned int issue_flags) if (sr->flags & IORING_RECVSEND_FIXED_BUF) { struct io_ring_ctx *ctx = req->ctx; struct io_rsrc_node *node; - int idx; ret = -EFAULT; io_ring_submit_lock(ctx, issue_flags); - if (sr->buf_index < ctx->buf_table.nr) { - idx = array_index_nospec(sr->buf_index, ctx->buf_table.nr); - node = ctx->buf_table.nodes[idx]; + node = io_rsrc_node_lookup(&ctx->buf_table, sr->buf_index); + if (node) { io_req_assign_rsrc_node(sr->notif, node); ret = 0; } |