Re: [PATCH 4/7] brd: make sector size configurable

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On Thu, Jun 15, 2023 at 12:17:12PM +1000, Dave Chinner wrote:
> On Wed, Jun 14, 2023 at 01:46:34PM +0200, Hannes Reinecke wrote:
> > @@ -310,6 +312,10 @@ static int max_part = 1;
> >  module_param(max_part, int, 0444);
> >  MODULE_PARM_DESC(max_part, "Num Minors to reserve between devices");
> >  
> > +static unsigned int rd_blksize = PAGE_SIZE;
> > +module_param(rd_blksize, uint, 0444);
> > +MODULE_PARM_DESC(rd_blksize, "Blocksize of each RAM disk in bytes.");
> 
> This needs CONFIG_BLK_DEV_RAM_BLOCK_SIZE to set the default size
> for those of us who don't use modular kernels....

You can set module parameter on the command line for built-in code
like brd.rd_blksize=8196

While we're at it, why that weird rd_ prefix for the parameter?




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