diff options
| -rw-r--r-- | include/linux/kfifo.h | 2 | ||||
| -rw-r--r-- | kernel/kfifo.c | 9 |
2 files changed, 11 insertions, 0 deletions
diff --git a/include/linux/kfifo.h b/include/linux/kfifo.h index 311f8753d71..4aa95f203f3 100644 --- a/include/linux/kfifo.h +++ b/include/linux/kfifo.h @@ -836,6 +836,8 @@ extern void __kfifo_dma_out_finish_r(struct __kfifo *fifo, size_t recsize); extern unsigned int __kfifo_len_r(struct __kfifo *fifo, size_t recsize); +extern void __kfifo_skip_r(struct __kfifo *fifo, size_t recsize); + extern unsigned int __kfifo_out_peek_r(struct __kfifo *fifo, void *buf, unsigned int len, size_t recsize); diff --git a/kernel/kfifo.c b/kernel/kfifo.c index 4502604ecad..6b5580c5764 100644 --- a/kernel/kfifo.c +++ b/kernel/kfifo.c @@ -503,6 +503,15 @@ unsigned int __kfifo_out_r(struct __kfifo *fifo, void *buf, } EXPORT_SYMBOL(__kfifo_out_r); +void __kfifo_skip_r(struct __kfifo *fifo, size_t recsize) +{ + unsigned int n; + + n = __kfifo_peek_n(fifo, recsize); + fifo->out += n + recsize; +} +EXPORT_SYMBOL(__kfifo_skip_r); + int __kfifo_from_user_r(struct __kfifo *fifo, const void __user *from, unsigned long len, unsigned int *copied, size_t recsize) { |