tree 4d4642e04e40f4835df9a18192da53b98b206bf8
parent 833bb3046b6cb320e775ea2160ddca87d53260d5
author Miklos Szeredi <mszeredi@suse.cz> 1238675134 +0200
committer Miklos Szeredi <mszeredi@suse.cz> 1238675134 +0200

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>