• Jens Axboe's avatar
    io-wq: shrink io_wq_work a bit · 6206f0e1
    Jens Axboe authored
    Currently we're using 40 bytes for the io_wq_work structure, and 16 of
    those is the doubly link list node. We don't need doubly linked lists,
    we always add to tail to keep things ordered, and any other use case
    is list traversal with deletion. For the deletion case, we can easily
    support any node deletion by keeping track of the previous entry.
    
    This shrinks io_wq_work to 32 bytes, and subsequently io_kiock from
    io_uring to 216 to 208 bytes.
    Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
    6206f0e1
io-wq.c 26 KB