[patch 0/3] fuse: implement missing functionality on "direct_io" files

From: Miklos Szeredi
Date: Mon Mar 30 2009 - 16:01:21 EST


Fuse allows filesystems to bypass the page cache using the "direct_io"
flag. This is not the same as O_DIRECT, it's dictated by the
filesystem not the application.

Some functionality didn't work in this mode, however. This short
patchset improves that:

1. fuse: allow kernel to access "direct_io" files
2. fuse: allow private mappings of "direct_io" files
3. splice: implement default splice_read method

The third patch is not fuse specific, it implements ->splice_read()
for any filesystem which doesn't provide one.

Comments are welcome.

Thanks,
Miklos
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