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yaml
---
r: 229281
b: refs/heads/master
c: 4db62d4
h: refs/heads/master
i:
  229279: 38c68a7
v: v3
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Mike Marciniszyn authored and Roland Dreier committed Jan 11, 2011
1 parent fe4b71c commit 0d0d275
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Showing 2 changed files with 15 additions and 17 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: f2d255a0787119f7f4dc0e6093a0bd2700a49402
refs/heads/master: 4db62d4786e946e6fc8c2bb1f9201508f7f46c41
30 changes: 14 additions & 16 deletions trunk/drivers/infiniband/hw/qib/qib_keys.c
Original file line number Diff line number Diff line change
Expand Up @@ -136,7 +136,6 @@ int qib_lkey_ok(struct qib_lkey_table *rkt, struct qib_pd *pd,
struct qib_mregion *mr;
unsigned n, m;
size_t off;
int ret = 0;
unsigned long flags;

/*
Expand All @@ -152,27 +151,28 @@ int qib_lkey_ok(struct qib_lkey_table *rkt, struct qib_pd *pd,
if (!dev->dma_mr)
goto bail;
atomic_inc(&dev->dma_mr->refcount);
spin_unlock_irqrestore(&rkt->lock, flags);

isge->mr = dev->dma_mr;
isge->vaddr = (void *) sge->addr;
isge->length = sge->length;
isge->sge_length = sge->length;
isge->m = 0;
isge->n = 0;
spin_unlock_irqrestore(&rkt->lock, flags);
goto ok;
}
mr = rkt->table[(sge->lkey >> (32 - ib_qib_lkey_table_size))];
if (unlikely(mr == NULL || mr->lkey != sge->lkey ||
mr->pd != &pd->ibpd))
goto bail;
atomic_inc(&mr->refcount);
spin_unlock_irqrestore(&rkt->lock, flags);

off = sge->addr - mr->user_base;
if (unlikely(sge->addr < mr->user_base ||
off + sge->length > mr->length ||
(mr->access_flags & acc) != acc))
return ret;
goto bail;
atomic_inc(&mr->refcount);
spin_unlock_irqrestore(&rkt->lock, flags);

off += mr->offset;
if (mr->page_shift) {
Expand Down Expand Up @@ -206,11 +206,10 @@ int qib_lkey_ok(struct qib_lkey_table *rkt, struct qib_pd *pd,
isge->m = m;
isge->n = n;
ok:
ret = 1;
return ret;
return 1;
bail:
spin_unlock_irqrestore(&rkt->lock, flags);
return ret;
return 0;
}

/**
Expand All @@ -231,7 +230,6 @@ int qib_rkey_ok(struct qib_qp *qp, struct qib_sge *sge,
struct qib_mregion *mr;
unsigned n, m;
size_t off;
int ret = 0;
unsigned long flags;

/*
Expand All @@ -248,26 +246,27 @@ int qib_rkey_ok(struct qib_qp *qp, struct qib_sge *sge,
if (!dev->dma_mr)
goto bail;
atomic_inc(&dev->dma_mr->refcount);
spin_unlock_irqrestore(&rkt->lock, flags);

sge->mr = dev->dma_mr;
sge->vaddr = (void *) vaddr;
sge->length = len;
sge->sge_length = len;
sge->m = 0;
sge->n = 0;
spin_unlock_irqrestore(&rkt->lock, flags);
goto ok;
}

mr = rkt->table[(rkey >> (32 - ib_qib_lkey_table_size))];
if (unlikely(mr == NULL || mr->lkey != rkey || qp->ibqp.pd != mr->pd))
goto bail;
atomic_inc(&mr->refcount);
spin_unlock_irqrestore(&rkt->lock, flags);

off = vaddr - mr->iova;
if (unlikely(vaddr < mr->iova || off + len > mr->length ||
(mr->access_flags & acc) == 0))
return ret;
goto bail;
atomic_inc(&mr->refcount);
spin_unlock_irqrestore(&rkt->lock, flags);

off += mr->offset;
if (mr->page_shift) {
Expand Down Expand Up @@ -301,11 +300,10 @@ int qib_rkey_ok(struct qib_qp *qp, struct qib_sge *sge,
sge->m = m;
sge->n = n;
ok:
ret = 1;
return ret;
return 1;
bail:
spin_unlock_irqrestore(&rkt->lock, flags);
return ret;
return 0;
}

/*
Expand Down

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