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bh=sp/Ume+GBHLoTEpuvlf0XK+PE025ykhly6ak9SBq7zc=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=nTS9dwJzGsrZhhAO/qQVIjlko93ei9TBykrirrxG88FPV5qcJx4rbo4agbRfIJWQU 7gziVN323mxBE/6wANpWwBJTvUYdkQMmZpX/MNLxrjv1cuPNsUuVE+XykJx4Vx9u8T WPT/iPluDmiYsc7s4Ah2Q1NyN8k9pgO6irD5s8mDw4xp9kt/KyVxS5cnhcQy5lZgyP nfvuJHUO4BiZ9crJD1uIQHmS/ICJ46kxXsjLRHrg8dnGGR6KJKHsKyXJtSU1OANj+0 UJYHjSqK8T6cxs8pAAqhC2DPanxRex3cVZxsbYVR/1Mx61NbW/7v3bp9uGO9e/SLnH 8iFk5/cu49fAg== Message-ID: Date: Wed, 24 May 2023 11:01:06 +0800 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Thunderbird/102.10.0 Subject: Re: [PATCH v22 19/31] f2fs: Provide a splice-read wrapper Content-Language: en-US To: David Howells , Jens Axboe , Al Viro , Christoph Hellwig Cc: Matthew Wilcox , Jan Kara , Jeff Layton , David Hildenbrand , Jason Gunthorpe , Logan Gunthorpe , Hillf Danton , Christian Brauner , Linus Torvalds , linux-fsdevel@vger.kernel.org, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, Christoph Hellwig , Jaegeuk Kim , linux-f2fs-devel@lists.sourceforge.net References: <20230522135018.2742245-1-dhowells@redhat.com> <20230522135018.2742245-20-dhowells@redhat.com> From: Chao Yu In-Reply-To: <20230522135018.2742245-20-dhowells@redhat.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: 4F9E240012 X-Rspam-User: X-Stat-Signature: u6wkpnfw8bpbyrb9ho33ydxb4bsxxi8u X-Rspamd-Server: rspam01 X-HE-Tag: 1684897277-103280 X-HE-Meta: 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 PL3E28/q 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 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: On 2023/5/22 21:50, David Howells wrote: > Provide a splice_read wrapper for f2fs. This does some checks and tracing > before calling filemap_splice_read() and will update the iostats > afterwards. Direct I/O is handled by the caller. > > Signed-off-by: David Howells > cc: Christoph Hellwig > cc: Al Viro > cc: Jens Axboe > cc: Jaegeuk Kim > cc: Chao Yu > cc: linux-f2fs-devel@lists.sourceforge.net > cc: linux-fsdevel@vger.kernel.org > cc: linux-block@vger.kernel.org > cc: linux-mm@kvack.org Reviewed-by: Chao Yu Thanks,