Miklos Szeredi f4975c67dd fuse: allow kernel to access "direct_io" files ...

Allow the kernel read and write on "direct_io" files.  This is
necessary for nfs export and execute support.

The implementation is simple: if an access from the kernel is
detected, don't perform get_user_pages(), just use the kernel address
provided by the requester to copy from/to the userspace filesystem.

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>

2009-04-02 14:25:34 +02:00

39 KiB

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