[PATCH v2 05/16] fs: Add RWF_ATOMIC and IOCB_ATOMIC flags for atomic write support

John Garry john.g.garry at oracle.com
Mon Jan 22 00:29:27 PST 2024


On 12/12/2023 11:08, John Garry wrote:
> --- 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)0x00000020)
> +

vfs maintainers, due to 
https://lore.kernel.org/linux-fsdevel/20240119191053.GT22081@brightrain.aerifal.cx/T/#t, 
I now plan to change this value to 0x40.

Thanks,
John



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