Re: [PATCH v2 01/11] ntfsplus: in-memory, on-disk structures and headers

[Matthew Wilcox]

On Sun, Nov 30, 2025 at 11:14:24PM -0800, Christoph Hellwig wrote:
> > + * ntfs_read_mapping_folio - map a folio into accessible memory, reading it if necessary
> 
> The very long comment for something that is just a trivial wrapper
> around read_mapping_folio is odd.  Also why does ntrfs need the special
> EINTR handling that other file systems don't?

I would presume that this is because NTFS is using the page cache for
metadata and they don't want the metadata read to be interrupted by a
fatal signal.  Of course, this turns into a spinning instead of sleeping
wait, so very bad for CPU usage.