diff options
| author | Michael S. Tsirkin <mst@mellanox.co.il> | 2006-07-14 00:23:55 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-07-14 21:53:51 -0700 |
| commit | adfaa888a292e7f38fb43668d8994f246e371f0f (patch) | |
| tree | b84155cedf9a1361ff4f7b0586c9b0be702ca605 | |
| parent | 74f76fbac72c84ac78620698a584d403b655e62a (diff) | |
[PATCH] fmr pool: remove unnecessary pointer dereference
ib_fmr_pool_map_phys gets the virtual address by pointer but never writes
there, and users (e.g. srp) seem to assume this and ignore the value
returned. This patch cleans up the API to get the VA by value, and updates
all users.
Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il>
Acked-by: Roland Dreier <rolandd@cisco.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| -rw-r--r-- | drivers/infiniband/core/fmr_pool.c | 8 | ||||
| -rw-r--r-- | drivers/infiniband/ulp/iser/iser_verbs.c | 2 | ||||
| -rw-r--r-- | drivers/infiniband/ulp/srp/ib_srp.c | 2 | ||||
| -rw-r--r-- | include/rdma/ib_fmr_pool.h | 2 |
4 files changed, 7 insertions, 7 deletions
diff --git a/drivers/infiniband/core/fmr_pool.c b/drivers/infiniband/core/fmr_pool.c index 615fe9cc6c5..86a3b2d401d 100644 --- a/drivers/infiniband/core/fmr_pool.c +++ b/drivers/infiniband/core/fmr_pool.c @@ -426,7 +426,7 @@ EXPORT_SYMBOL(ib_flush_fmr_pool); struct ib_pool_fmr *ib_fmr_pool_map_phys(struct ib_fmr_pool *pool_handle, u64 *page_list, int list_len, - u64 *io_virtual_address) + u64 io_virtual_address) { struct ib_fmr_pool *pool = pool_handle; struct ib_pool_fmr *fmr; @@ -440,7 +440,7 @@ struct ib_pool_fmr *ib_fmr_pool_map_phys(struct ib_fmr_pool *pool_handle, fmr = ib_fmr_cache_lookup(pool, page_list, list_len, - *io_virtual_address); + io_virtual_address); if (fmr) { /* found in cache */ ++fmr->ref_count; @@ -464,7 +464,7 @@ struct ib_pool_fmr *ib_fmr_pool_map_phys(struct ib_fmr_pool *pool_handle, spin_unlock_irqrestore(&pool->pool_lock, flags); result = ib_map_phys_fmr(fmr->fmr, page_list, list_len, - *io_virtual_address); + io_virtual_address); if (result) { spin_lock_irqsave(&pool->pool_lock, flags); @@ -481,7 +481,7 @@ struct ib_pool_fmr *ib_fmr_pool_map_phys(struct ib_fmr_pool *pool_handle, fmr->ref_count = 1; if (pool->cache_bucket) { - fmr->io_virtual_address = *io_virtual_address; + fmr->io_virtual_address = io_virtual_address; fmr->page_list_len = list_len; memcpy(fmr->page_list, page_list, list_len * sizeof(*page_list)); diff --git a/drivers/infiniband/ulp/iser/iser_verbs.c b/drivers/infiniband/ulp/iser/iser_verbs.c index ff117bbf81b..72febf1f8ff 100644 --- a/drivers/infiniband/ulp/iser/iser_verbs.c +++ b/drivers/infiniband/ulp/iser/iser_verbs.c @@ -594,7 +594,7 @@ int iser_reg_page_vec(struct iser_conn *ib_conn, mem = ib_fmr_pool_map_phys(ib_conn->fmr_pool, page_list, page_vec->length, - &io_addr); + io_addr); if (IS_ERR(mem)) { status = (int)PTR_ERR(mem); diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c index 619118080bc..8f472e7113b 100644 --- a/drivers/infiniband/ulp/srp/ib_srp.c +++ b/drivers/infiniband/ulp/srp/ib_srp.c @@ -615,7 +615,7 @@ static int srp_map_fmr(struct srp_device *dev, struct scatterlist *scat, (sg_dma_address(&scat[i]) & dev->fmr_page_mask) + j; req->fmr = ib_fmr_pool_map_phys(dev->fmr_pool, - dma_pages, page_cnt, &io_addr); + dma_pages, page_cnt, io_addr); if (IS_ERR(req->fmr)) { ret = PTR_ERR(req->fmr); req->fmr = NULL; diff --git a/include/rdma/ib_fmr_pool.h b/include/rdma/ib_fmr_pool.h index 4ace54cd0cc..00dadbf94e1 100644 --- a/include/rdma/ib_fmr_pool.h +++ b/include/rdma/ib_fmr_pool.h @@ -88,7 +88,7 @@ int ib_flush_fmr_pool(struct ib_fmr_pool *pool); struct ib_pool_fmr *ib_fmr_pool_map_phys(struct ib_fmr_pool *pool_handle, u64 *page_list, int list_len, - u64 *io_virtual_address); + u64 io_virtual_address); int ib_fmr_pool_unmap(struct ib_pool_fmr *fmr); |