linux-kernel - Re: [PATCH v4 03/11] fs: Initial atomic write support

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Date: Mon, 19 Feb 2024 20:16:34 +0100
From: David Sterba <dsterba@...e.cz>
To: John Garry <john.g.garry@...cle.com>
Cc: axboe@...nel.dk, kbusch@...nel.org, hch@....de, sagi@...mberg.me,
	jejb@...ux.ibm.com, martin.petersen@...cle.com, djwong@...nel.org,
	viro@...iv.linux.org.uk, brauner@...nel.org, dchinner@...hat.com,
	jack@...e.cz, linux-block@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-nvme@...ts.infradead.org,
	linux-fsdevel@...r.kernel.org, tytso@....edu, jbongio@...gle.com,
	linux-scsi@...r.kernel.org, ojaswin@...ux.ibm.com,
	linux-aio@...ck.org, linux-btrfs@...r.kernel.org,
	io-uring@...r.kernel.org, nilay@...ux.ibm.com,
	ritesh.list@...il.com,
	Prasad Singamsetty <prasad.singamsetty@...cle.com>
Subject: Re: [PATCH v4 03/11] fs: Initial atomic write support

On Mon, Feb 19, 2024 at 01:01:01PM +0000, John Garry wrote:
> From: Prasad Singamsetty <prasad.singamsetty@...cle.com>
> --- a/include/uapi/linux/fs.h
> +++ b/include/uapi/linux/fs.h
> @@ -301,9 +301,12 @@ typedef int __bitwise __kernel_rwf_t;
>  /* per-IO O_APPEND */
>  #define RWF_APPEND	((__force __kernel_rwf_t)0x00000010)
>  
> +/* Atomic Write */
> +#define RWF_ATOMIC	((__force __kernel_rwf_t)0x00000040)

Should this be 0x20 so it's the next bit after RWF_APPEND?