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t=1684575517; bh=UITJqkbSRLqe3fEc/QtOwUE1guoZf/bbfzKL1AjylCo=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=Od+Lz2YNHLKcVu5WN/P/qKOOjTtun4t+C1+WmsiHvDKiyi/1YD4kjk8JDMk8rRSQx pdzF6X4a3RaH7ynOSdzubf/a1Xc6ke7xyG2nZLvFD1dHmy9N99YZ05G4Ja6y4rSt0Z 5DMiQSN5Z/CTXeog+M63zW2PSvdYJo4WPsaFRqfdlS4ret+Hph34fjQF9Wup2qVtJe UPwZC2A52ZJrU06wIZCHJIEBzpdW1cD/I8UMb+qCLjd5Lk5YLyjJfIWJ+MgCXvZv5V 3LNN8QZa7HJ+92sBouqJiE/Dh1+rRWZKw05yYnv/nV+m/PESmveuYRRJCQSBav0lRM XDtMHCv4eXGqg== Date: Sat, 20 May 2023 11:38:30 +0200 From: Christian Brauner To: David Howells Cc: Jens Axboe , Al Viro , Christoph Hellwig , Matthew Wilcox , Jan Kara , Jeff Layton , David Hildenbrand , Jason Gunthorpe , Logan Gunthorpe , Hillf Danton , Linus Torvalds , linux-fsdevel@vger.kernel.org, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, Christoph Hellwig Subject: Re: [PATCH v21 06/30] splice: Check for zero count in vfs_splice_read() Message-ID: <20230520-zweieinhalb-erfragen-f9cce7c16e0c@brauner> References: <20230520000049.2226926-1-dhowells@redhat.com> <20230520000049.2226926-7-dhowells@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20230520000049.2226926-7-dhowells@redhat.com> X-Rspamd-Queue-Id: 729EC1A000F X-Rspam-User: X-Stat-Signature: a6rh7nd8b5hnq6roqgytqo3x36fowqjb X-Rspamd-Server: rspam01 X-HE-Tag: 1684575518-338043 X-HE-Meta: U2FsdGVkX19n+wqFzwqRQ55pctAHRoWbW5cP+gU6SUuHtMRerr528hV9fmirsq/B1qe9GPSv7xoUgvRjgz/jMdy5tld1ZeLBVKQ/c9eapacDj0VsZVTKdTtN49o6MByf43sP4ajskLuAXQVA6eRbeatHHmg18rkk52HWZnFyLMnqWKFKTRHjqXFl4vMTXX2z6A9v7bYNuzTGSVjjfB90Pp8M0xiSgl+jD8/1OWB6TZw+8mFtca6w+iCTvsZDan3Y1UZ+DBodP14w75K29MXjzT5roW2LXY4rhwY1VSpaV9tdtrbGoBCIjh6lTNVZVgdhdsrS6vOFfNjp4JCwS2JpouaRhLEac6QZ7sMPtuKylF/AG7MtqPJwJsFCR4tV0cT/DVcp9fSo/9j3otEGmxFSUSNoYNd5E2ZFjboYP5OC8dfbaWtTH7fouSMMfeRO5na0pQhRPAf8FmTTrvQ4R/ud+kgWPvfMZeCOjrYUVMRatPwwvGF8MR3Do4EuvmPKSI16CSw87aiMPALv3dOZ0tMDEMvYXRvS4IlXZklt9wjqa6dzu6bg3Ul6VKzX7eqitj2xQRMe5hsdLVDIdjcHTNB0hVky3kWz5MrjFCNWFPqrb8sCo/OcxuHPKs0HasGS+yrXnuRW7t3qcrRX7hVttIlV12hKj6e/nTwxpJlHMyAZndImXE17kwJt2EsRld/r2T5XDVtUc8Lbj2K35dy+p+Aupb2f+SLfklzmAe7m352HRZy9DHz9uHhbfY4gC0+MXQ2s4ZFqcpdP2jTWxtHuntVpVHD2MJQhwrQaOiQwyJGz5A3M7uSgAWzynpWegcBt+ink37RKmGY8Q0ZTB3Rns/Txe6DUGqz94czL5qRnignbCpeBHrpXdR8211HXLX0ARMDDdvrHqdpCR8U6JsY/SDNUFUDWB3HfkcrTpQ4LmG5MgD4O2F9ajrqaydVwy4Gb135NTOR8xTtnbeaUOiJLpEi m9fRixse 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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 Sat, May 20, 2023 at 01:00:25AM +0100, David Howells wrote: > Make vfs_splice_read() return immediately if the length is 0. > > Signed-off-by: David Howells > cc: Christoph Hellwig > cc: Jens Axboe > cc: Al Viro > cc: linux-block@vger.kernel.org > cc: linux-fsdevel@vger.kernel.org > cc: linux-mm@kvack.org > --- Reviewed-by: Christian Brauner