On Thu, Nov 13, 2025 at 08:56:56AM +1100, Dave Chinner wrote:

On Wed, Nov 12, 2025 at 04:36:03PM +0530, Ojaswin Mujoo wrote:

quoted

This patch adds support to perform single block RWF_ATOMIC writes for
iomap xfs buffered IO. This builds upon the inital RFC shared by John
Garry last year [1]. Most of the details are present in the respective 
commit messages but I'd mention some of the design points below:

What is the use case for this functionality? i.e. what is the
reason for adding all this complexity?

Seconded.  The atomic code has a lot of complexity, and further mixing
it with buffered I/O makes this even worse.  We'd need a really important
use case to even consider it.