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RB: use the same mechanism in reclaim as read/peek to detect end-of-ring

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Signed-off-by: Angus Salkeld <asalkeld@redhat.com>
This commit is contained in:
Angus Salkeld 2012-06-07 12:02:32 +10:00
parent cec82e0117
commit 3369581066
1 changed files with 6 additions and 2 deletions
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8
lib/ringbuffer.c
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@ -513,9 +513,13 @@ static void
_rb_chunk_reclaim(struct qb_ringbuffer_s * rb)
{
uint32_t old_read_pt;
uint32_t chunk_magic;
old_read_pt = rb->shared_hdr->read_pt;
QB_MAGIC_ASSERT(old_read_pt);
chunk_magic = QB_RB_CHUNK_MAGIC_GET(rb, old_read_pt);
if (chunk_magic != QB_RB_CHUNK_MAGIC) {
return;
}
rb->shared_hdr->read_pt = qb_rb_chunk_step(rb, old_read_pt);
@ -533,7 +537,7 @@ _rb_chunk_reclaim(struct qb_ringbuffer_s * rb)
void
qb_rb_chunk_reclaim(struct qb_ringbuffer_s * rb)
{
if (rb == NULL || qb_rb_space_used(rb) == 0) {
if (rb == NULL) {
return;
}
_rb_chunk_reclaim(rb);