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fuse: allow kernel to access "direct_io" files
authorMiklos Szeredi <mszeredi@suse.cz>
Thu, 2 Apr 2009 12:25:34 +0000 (14:25 +0200)
committerMiklos Szeredi <mszeredi@suse.cz>
Thu, 2 Apr 2009 12:25:34 +0000 (14:25 +0200)
commitf4975c67dd9ad8eb47a4c77af0521a2b16ee0197
tree4d4642e04e40f4835df9a18192da53b98b206bf8tree
parent833bb3046b6cb320e775ea2160ddca87d53260d5commit | diff
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>
fs/fuse/dir.c diff | blob | history
fs/fuse/file.c diff | blob | history
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