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由 Miklos Szeredi 提交于
If f_op->splice_write() is not implemented, fall back to a plain write. Use vfs_writev() to write from the pipe buffers. This will allow splice on all filesystems and file types. This includes "direct_io" files in fuse which bypass the page cache. Signed-off-by: NMiklos Szeredi <mszeredi@suse.cz> Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
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