io_uring/poll: cleanup apoll freeing

No point having REQ_F_POLLED in both IO_REQ_CLEAN_FLAGS and in
IO_REQ_CLEAN_SLOW_FLAGS, and having both io_free_batch_list() and then
io_clean_op() check for it and clean it.

Move REQ_F_POLLED to IO_REQ_CLEAN_SLOW_FLAGS and drop it from
IO_REQ_CLEAN_FLAGS, and have only io_free_batch_list() do the check and
freeing.

Link: https://lore.kernel.org/io-uring/[email protected]
Signed-off-by: Jens Axboe <[email protected]>

Author: axboe

io_uring/io_uring.c

@@ -114,11 +114,11 @@
 #define IO_REQ_LINK_FLAGS (REQ_F_LINK | REQ_F_HARDLINK)
 
 #define IO_REQ_CLEAN_FLAGS (REQ_F_BUFFER_SELECTED | REQ_F_NEED_CLEANUP | \
-				REQ_F_POLLED | REQ_F_INFLIGHT | REQ_F_CREDS | \
-				REQ_F_ASYNC_DATA)
+				REQ_F_INFLIGHT | REQ_F_CREDS | REQ_F_ASYNC_DATA)
 
 #define IO_REQ_CLEAN_SLOW_FLAGS (REQ_F_REFCOUNT | IO_REQ_LINK_FLAGS | \
-				 REQ_F_REISSUE | IO_REQ_CLEAN_FLAGS)
+				 REQ_F_REISSUE | REQ_F_POLLED | \
+				 IO_REQ_CLEAN_FLAGS)
 
 #define IO_TCTX_REFS_CACHE_NR	(1U << 10)
 
@@ -392,11 +392,6 @@ static void io_clean_op(struct io_kiocb *req)
 		if (def->cleanup)
 			def->cleanup(req);
 	}
-	if ((req->flags & REQ_F_POLLED) && req->apoll) {
-		kfree(req->apoll->double_poll);
-		kfree(req->apoll);
-		req->apoll = NULL;
-	}
 	if (req->flags & REQ_F_INFLIGHT)
 		atomic_dec(&req->tctx->inflight_tracked);
 	if (req->flags & REQ_F_CREDS)