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libbpf: Add ring__size

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Add ring__size to get the total size of a given ringbuffer.

Signed-off-by: Martin Kelly <martin.kelly@crowdstrike.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20230925215045.2375758-10-martin.kelly@crowdstrike.com
This commit is contained in:
Martin Kelly
2023-09-25 14:50:40 -07:00
committed by Andrii Nakryiko
parent 3e675ed6ab
commit cd3fe56c75
3 changed files with 16 additions and 0 deletions
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5
src/ringbuf.c
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@@ -361,6 +361,11 @@ size_t ring__avail_data_size(const struct ring *r)
return prod_pos - cons_pos;
}
size_t ring__size(const struct ring *r)
{
return r->mask + 1;
}
static void user_ringbuf_unmap_ring(struct user_ring_buffer *rb)
{
if (rb->consumer_pos) {