1KFIFO_OUT_REC(9)                  FIFO Buffer                 KFIFO_OUT_REC(9)
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NAME

6       kfifo_out_rec - gets some record data from the FIFO
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SYNOPSIS

9       __must_check unsigned int kfifo_out_rec(struct kfifo * fifo, void * to,
10                                               unsigned int n,
11                                               unsigned int recsize,
12                                               unsigned int * total);
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ARGUMENTS

15       fifo
16           the fifo to be used.
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18       to
19           where the data must be copied.
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21       n
22           the size of the destination buffer.
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24       recsize
25           size of record field
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27       total
28           pointer where the total number of to copied bytes should stored
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DESCRIPTION

31       This function copies at most n bytes from the FIFO to to and returns
32       the number of bytes which cannot be copied. A returned value greater
33       than the n value means that the record doesn't fit into the to buffer.
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35       Note that with only one concurrent reader and one concurrent writer,
36       you don't need extra locking to use these functions.
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39Kernel Hackers Manual 2.6.       November 2011                KFIFO_OUT_REC(9)
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