[PATCH 08/11] fs: add support for non-blocking timestamp updates

[Chaitanya Kulkarni]

On 12/22/25 16:37, Christoph Hellwig wrote:
> Currently file_update_time_flags unconditionally returns -EAGAIN if any
> timestamp needs to be updated and IOCB_NOWAIT is passed.  This makes
> non-blocking direct writes impossible on file systems with granular
> enough timestamps.
>
> Add a S_NOWAIT to ask for timestamps to not block, and return -EAGAIN in
> all methods for now.
>
> Signed-off-by: Christoph Hellwig<hch at lst.de>
> Reviewed-by: Jeff Layton<jlayton at kernel.org>

Looks good.

Reviewed-by: Chaitanya Kulkarni <kch at nvidia.com>

-ck