io_uring: split alloc_fixed_file_ref_node

Split alloc_fixed_file_ref_node into resource generic/specific parts,
to be leveraged for fixed buffers.

Signed-off-by: Bijan Mottahedeh <bijan.mottahedeh@oracle.com>
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Reviewed-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

diff --git a/fs/io_uring.c b/fs/io_uring.c
index a129192..ab5bf1b 100644 (file)
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -7799,7 +7799,7 @@ static void io_rsrc_data_ref_zero(struct percpu_ref *ref)
                queue_delayed_work(system_wq, &ctx->rsrc_put_work, delay);
 }
 
-static struct fixed_rsrc_ref_node *alloc_fixed_file_ref_node(
+static struct fixed_rsrc_ref_node *alloc_fixed_rsrc_ref_node(
                        struct io_ring_ctx *ctx)
 {
        struct fixed_rsrc_ref_node *ref_node;
@@ -7815,9 +7815,21 @@ static struct fixed_rsrc_ref_node *alloc_fixed_file_ref_node(
        }
        INIT_LIST_HEAD(&ref_node->node);
        INIT_LIST_HEAD(&ref_node->rsrc_list);
+       ref_node->done = false;
+       return ref_node;
+}
+
+static struct fixed_rsrc_ref_node *alloc_fixed_file_ref_node(
+                       struct io_ring_ctx *ctx)
+{
+       struct fixed_rsrc_ref_node *ref_node;
+
+       ref_node = alloc_fixed_rsrc_ref_node(ctx);
+       if (!ref_node)
+               return NULL;
+
        ref_node->rsrc_data = ctx->file_data;
        ref_node->rsrc_put = io_ring_file_put;
-       ref_node->done = false;
        return ref_node;
 }