linux-kernel - Re: [PATCH 3/4] btrfs/ioctl: store btrfs_uring_encoded_data in io_btrfs

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Message-ID: <c83a2cb6-3486-4977-9e1e-abda015a4dad@kernel.dk>
Date: Tue, 1 Jul 2025 13:05:57 -0600
From: Jens Axboe <axboe@...nel.dk>
To: Caleb Sander Mateos <csander@...estorage.com>, Chris Mason <clm@...com>,
 Josef Bacik <josef@...icpanda.com>, David Sterba <dsterba@...e.com>
Cc: Mark Harmstone <maharmstone@...com>, linux-btrfs@...r.kernel.org,
 io-uring@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/4] btrfs/ioctl: store btrfs_uring_encoded_data in
 io_btrfs_cmd

> @@ -4811,11 +4813,15 @@ static int btrfs_uring_encoded_read(struct io_uring_cmd *cmd, unsigned int issue
>  	loff_t pos;
>  	struct kiocb kiocb;
>  	struct extent_state *cached_state = NULL;
>  	u64 start, lockend;
>  	void __user *sqe_addr;
> -	struct btrfs_uring_encoded_data *data = io_uring_cmd_get_async_data(cmd)->op_data;
> +	struct io_btrfs_cmd *bc = io_uring_cmd_to_pdu(cmd, struct io_btrfs_cmd);
> +	struct btrfs_uring_encoded_data *data = NULL;
> +
> +	if (cmd->flags & IORING_URING_CMD_REISSUE)
> +		data = bc->data;

Can this be a btrfs io_btrfs_cmd specific flag? Doesn't seem like it
would need to be io_uring wide.

-- 
Jens Axboe