Re: [RFC PATCH 2/2] mm: introduce budgt control in readahead

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On Wed, May 15, 2024 at 12:09 PM Matthew Wilcox <willy@xxxxxxxxxxxxx> wrote:
>
> On Wed, May 15, 2024 at 09:23:50AM +0800, zhaoyang.huang wrote:
> > +     unsigned long budgt = inode->i_sb->s_bdev ?
> > +                     blk_throttle_budgt(inode->i_sb->s_bdev) : 0;
>
> NAK as previously explained.
ok. But this commit could work by following the configuration of
blk-throttle as long as it works on btrfs with internal RAID on.
Furthermore, this will help the blkcg meet the desired BPS value
perfectly.





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