[PATCH 6/9] io_uring/net: Allocate msghdr async data through helper

[Gabriel Krisman Bertazi <krisman@suse.de>]

This abstracts away the cache details.

Signed-off-by: Gabriel Krisman Bertazi <krisman@suse.de>
---
 io_uring/net.c | 28 ++++++++++------------------
 1 file changed, 10 insertions(+), 18 deletions(-)

diff --git a/io_uring/net.c b/io_uring/net.c
index df1f7dc6f1c8..104863101980 100644
--- a/io_uring/net.c
+++ b/io_uring/net.c
@@ -160,25 +160,17 @@ static struct io_async_msghdr *io_msg_alloc_async(struct io_kiocb *req)
 	struct io_ring_ctx *ctx = req->ctx;
 	struct io_async_msghdr *hdr;
 
-	hdr = io_alloc_cache_get(&ctx->netmsg_cache);
-	if (hdr) {
-		if (hdr->free_iov) {
-			kasan_mempool_unpoison_object(hdr->free_iov,
-				hdr->free_iov_nr * sizeof(struct iovec));
-			req->flags |= REQ_F_NEED_CLEANUP;
-		}
-		req->flags |= REQ_F_ASYNC_DATA;
-		req->async_data = hdr;
-		return hdr;
-	}
-
-	if (!io_alloc_async_data(req)) {
-		hdr = req->async_data;
-		hdr->free_iov_nr = 0;
-		hdr->free_iov = NULL;
-		return hdr;
+	hdr = io_uring_alloc_async_data(&ctx->netmsg_cache, req);
+	if (!hdr)
+		return NULL;
+
+	/* If the async data was cached, we might have an iov cached inside. */
+	if (hdr->free_iov) {
+		kasan_mempool_unpoison_object(hdr->free_iov,
+					      hdr->free_iov_nr * sizeof(struct iovec));
+		req->flags |= REQ_F_NEED_CLEANUP;
 	}
-	return NULL;
+	return hdr;
 }
 
 /* assign new iovec to kmsg, if we need to */
-- 
2.47.0