Re: [PATCH v7 0/5] vfs: Non-blockling buffered fs read (page cache only)
- From
- Christoph Hellwig <hch@infradead.org>
- Date
- 2015-03-27 08:48:33
- Also in
- linux-arch, linux-fsdevel, lkml
- Reply to
- Andrew Morton, 2015-03-27
On Fri, Mar 27, 2015 at 01:35:16AM -0700, Andrew Morton wrote:
fincore() doesn't have to be ugly. Please address the design issues I raised. How is pread2() useful to the class of applications which cannot proceed until all data is available?
It actually makes them work correctly? preadv2( ..., DONTWAIT) will
return -EGAIN, which causes them to bounce to the threadpool where
they call preadv(...).