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Miklos Szeredi authored
Allow userspace filesystem implementation to use splice() to read from the fuse device. The userspace filesystem can now transfer data coming from a WRITE request to an arbitrary file descriptor (regular file, block device or socket) without having to go through a userspace buffer. The semantics of using splice() to read messages are: 1) with a single splice() call move the whole message from the fuse device to a temporary pipe 2) read the header from the pipe and determine the message type 3a) if message is a WRITE then splice data from pipe to destination 3b) else read rest of message to userspace buffer Signed-off-by:
Miklos Szeredi <mszeredi@suse.cz>
c3021629