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Code Issues Releases Activity

Remove an unused var.

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Sponsored by:	EMC / Isilon storage division
MFC after:	3 days
This commit is contained in:
Attilio Rao 2012-12-27 12:53:46 +00:00
parent 30c7dd147c
commit ad9505aae7
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=244733
1 changed files with 1 additions and 5 deletions
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6
sys/sys/buf_ring.h
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@ -77,7 +77,6 @@ buf_ring_enqueue(struct buf_ring *br, void *buf)
{
uint32_t prod_head, prod_next;
uint32_t cons_tail;
int success;
#ifdef DEBUG_BUFRING
int i;
for (i = br->br_cons_head; i != br->br_prod_head;
@ -98,10 +97,7 @@ buf_ring_enqueue(struct buf_ring *br, void *buf)
critical_exit();
return (ENOBUFS);
}
success = atomic_cmpset_int(&br->br_prod_head, prod_head,
prod_next);
} while (success == 0);
} while (!atomic_cmpset_int(&br->br_prod_head, prod_head, prod_next));
#ifdef DEBUG_BUFRING
if (br->br_ring[prod_head] != NULL)
panic("dangling value in enqueue");