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Message-ID: <b09e799e-9d9f-ae22-1f09-babd6521b11d@kernel.dk> Date: Tue, 18 Apr 2023 19:28:26 -0600 From: Jens Axboe <axboe@...nel.dk> To: Dave Chinner <david@...morbit.com>, Bernd Schubert <bschubert@....com> Cc: Miklos Szeredi <miklos@...redi.hu>, "Darrick J. Wong" <djwong@...nel.org>, Christoph Hellwig <hch@...radead.org>, "io-uring@...r.kernel.org" <io-uring@...r.kernel.org>, "linux-ext4@...r.kernel.org" <linux-ext4@...r.kernel.org>, "linux-fsdevel@...r.kernel.org" <linux-fsdevel@...r.kernel.org>, "linux-xfs@...r.kernel.org" <linux-xfs@...r.kernel.org>, Dharmendra Singh <dsingh@....com> Subject: Re: [PATCH 1/2] fs: add FMODE_DIO_PARALLEL_WRITE flag On 4/18/23 4:13?PM, Dave Chinner wrote: >>> Without first attempting to answer those questions, I'd be reluctant >>> to add FMODE_DIO_PARALLEL_WRITE to fuse. > > I'd tag it with this anyway - for the majority of apps that are > doing concurrent DIO within EOF, shared locking is big win. If > there's a corner case that apps trigger that is slow, deal with them > when they are reported.... Agree, the common/fast case will be fine, which is really the most important part. -- Jens Axboe
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