Re: [PATCH v2] fs: Invalidate the cache for a parent block-device if fsync() is called for a partition

[Jeff Moyer]

Niels de Vos <ndevos@xxxxxxxxxx> writes:

> Executing an fsync() on a file-descriptor of a partition flushes the
> caches for that partition by calling blkdev_issue_flush(). However, it
> seems that reading data through the parent device will still return the
> old cached data.

What problem, exactly, are you trying to fix?  Could you please post a
reproducer?

Cheers,
Jeff
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