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Received: from willy by casper.infradead.org with local (Exim 4.97.1 #2 (Red Hat Linux)) id 1s75xG-00000009uEl-10EI; Wed, 15 May 2024 04:09:26 +0000 Date: Wed, 15 May 2024 05:09:26 +0100 From: Matthew Wilcox To: "zhaoyang.huang" Cc: Andrew Morton , Jens Axboe , Tejun Heo , Josef Bacik , Baolin Wang , linux-mm@kvack.org, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, cgroups@vger.kernel.org, Zhaoyang Huang , steve.kang@unisoc.com Subject: Re: [RFC PATCH 2/2] mm: introduce budgt control in readahead Message-ID: References: <20240515012350.1166350-1-zhaoyang.huang@unisoc.com> <20240515012350.1166350-3-zhaoyang.huang@unisoc.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20240515012350.1166350-3-zhaoyang.huang@unisoc.com> X-Rspamd-Queue-Id: 2CA17100005 X-Rspam-User: X-Rspamd-Server: rspam12 X-Stat-Signature: y7outy1tr957aikjyspcw1qkjo4egyo9 X-HE-Tag: 1715746176-44501 X-HE-Meta: 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 CxCTgv5L WeaLYstOn3EptoyzEwWPJTgmZGu0m4XHktu+1rckVr+L5eCMdGfr5IGgXDbmW79mzoQhY3cbzimQFxQYX8GxPPt5HkYFGX2ee3AxvuDJYQA+4ZLo/+6fXZhTET8qA/R7a2sfA6risUOUA7J4= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: 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.