Re: [PATCH] Documentation: block: fix the sector 0 error injection example

[Tao Cui <cui.tao@linux.dev>]

在 2026/8/16 03:11, Md Haris Iqbal 写道:
> The first error injection example is introduced as failing one in ten
> reads of sector 0, but the rule it shows does not set nr_sectors, which
> defaults to the remainder of the device.  As written it fails one in ten
> reads of the whole device.
> 
> Add nr_sectors=1 so that the rule does what the text says.  This also
> gives the documentation one example that uses nr_sectors.
> 
> Fixes: e8dcf2d142bd ("block: add configurable error injection")
> Signed-off-by: Md Haris Iqbal <haris.iqbal@linux.dev>
> ---
>  Documentation/block/error-injection.rst | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/Documentation/block/error-injection.rst b/Documentation/block/error-injection.rst
> --- a/Documentation/block/error-injection.rst
> +++ b/Documentation/block/error-injection.rst
> @@ -48,7 +48,7 @@ Example
>  
>  Return BLK_STS_IOERR for one in 10 reads of sector 0 of /dev/nvme0n1:
>  
> -	$ echo 'add,op=READ,start=0,status=IOERR,chance=10' > /sys/kernel/debug/block/nvme0n1/error_injection
> +	$ echo 'add,op=READ,start=0,nr_sectors=1,status=IOERR,chance=10' > /sys/kernel/debug/block/nvme0n1/error_injection
>  
>  Return BLK_STS_MEDIUM for every write to /dev/nvme0n1:
>  
> --
> 2.53.0
> 
> 
Reviewed-by: Tao Cui <cuitao@kylinos.cn>