1KFIFO_PEEK(9)                     FIFO Buffer                    KFIFO_PEEK(9)
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NAME

6       kfifo_peek - get data from the fifo without removing
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SYNOPSIS

9       kfifo_peek(fifo, val);
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ARGUMENTS

12       fifo
13           address of the fifo to be used
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15       val
16           the var where to store the data to be added
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DESCRIPTION

19       This reads the data from the fifo without removing it from the fifo. It
20       returns 0 if the fifo was empty. Otherwise it returns the number
21       processed elements.
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23       Note that with only one concurrent reader and one concurrent writer,
24       you don't need extra locking to use these macro.
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27Kernel Hackers Manual 3.10         June 2019                     KFIFO_PEEK(9)
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