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Fix atomic ops in <sys/buf_ring.h>

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This commit is contained in:
Sebastian Huber 2016-10-24 12:00:55 +02:00
parent c40e45b75e
commit 2956924a34
1 changed files with 4 additions and 4 deletions
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8
freebsd/sys/sys/buf_ring.h
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@ -89,7 +89,7 @@ buf_ring_enqueue(struct buf_ring *br, void *buf)
}
continue;
}
} while (!atomic_cmpset_acq_int(&br->br_prod_head, prod_head, prod_next));
} while (!atomic_cmpset_acq_32(&br->br_prod_head, prod_head, prod_next));
#ifdef DEBUG_BUFRING
if (br->br_ring[prod_head] != NULL)
panic("dangling value in enqueue");
@ -103,7 +103,7 @@ buf_ring_enqueue(struct buf_ring *br, void *buf)
*/
while (br->br_prod_tail != prod_head)
cpu_spinwait();
atomic_store_rel_int(&br->br_prod_tail, prod_next);
atomic_store_rel_32(&br->br_prod_tail, prod_next);
critical_exit();
return (0);
}
@ -127,7 +127,7 @@ buf_ring_dequeue_mc(struct buf_ring *br)
critical_exit();
return (NULL);
}
} while (!atomic_cmpset_acq_int(&br->br_cons_head, cons_head, cons_next));
} while (!atomic_cmpset_acq_32(&br->br_cons_head, cons_head, cons_next));
buf = br->br_ring[cons_head];
#ifdef DEBUG_BUFRING
@ -141,7 +141,7 @@ buf_ring_dequeue_mc(struct buf_ring *br)
while (br->br_cons_tail != cons_head)
cpu_spinwait();
atomic_store_rel_int(&br->br_cons_tail, cons_next);
atomic_store_rel_32(&br->br_cons_tail, cons_next);
critical_exit();
return (buf);