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Date: Mon, 26 Feb 2024 14:43:21 +0530
Message-Id: <878r371tce.fsf@doe.com>
From: Ritesh Harjani (IBM) <ritesh.list@gmail.com>
To: John Garry <john.g.garry@oracle.com>, axboe@kernel.dk, kbusch@kernel.org, hch@lst.de, sagi@grimberg.me, jejb@linux.ibm.com, martin.petersen@oracle.com, djwong@kernel.org, viro@zeniv.linux.org.uk, brauner@kernel.org, dchinner@redhat.com, jack@suse.cz
Cc: linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, linux-nvme@lists.infradead.org, linux-fsdevel@vger.kernel.org, tytso@mit.edu, jbongio@google.com, linux-scsi@vger.kernel.org, ojaswin@linux.ibm.com, linux-aio@kvack.org, linux-btrfs@vger.kernel.org, io-uring@vger.kernel.org, nilay@linux.ibm.com, Prasad Singamsetty <prasad.singamsetty@oracle.com>
Subject: Re: [PATCH v4 03/11] fs: Initial atomic write support
In-Reply-To: <07537871-ab4e-4629-86ff-5559aa88ad17@oracle.com>
Precedence: bulk

John Garry <john.g.garry@oracle.com> writes:

> On 24/02/2024 18:20, Ritesh Harjani (IBM) wrote:
>>>> Helper function atomic_write_valid() can be used by FSes to verify
>>>> compliant writes.
>> Minor nit.
>> maybe generic_atomic_write_valid()?
>
> Having "generic" in the name implies that there are other ways in which 
> we can check if an atomic write is valid, but really this function 
> should be good to use in scenarios so far considered.

It means individual FS can call in a generic atomic write validation
helper instead of implementing of their own. Hence generic_atomic_write_valid(). 

So for e.g. blkdev_atomic_write_valid() function and maybe iomap (or
ext4 or xfs) can use a generic_atomic_write_valid() helper routine to
validate an atomic write request.

-ritesh