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Liang Chen authored
The use of the union reduces the size of closure struct by taking advantage of the current size of its members. The offset of func in work_struct equals the size of the first three members, so that work.work_func will just reference the forth member - fn. This is smart but dangerous. It can be broken if work_struct or the other structs get changed, and can be a bit difficult to debug. Signed-off-by: Liang Chen <liangchen.linux@gmail.com> Reviewed-by: Michael Lyle <mlyle@lyle.org> Signed-off-by: Jens Axboe <axboe@kernel.dk>
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