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authorErez Zilber <erezz@voltaire.com>2006-09-11 12:19:17 +0300
committerRoland Dreier <rolandd@cisco.com>2006-09-22 15:22:49 -0700
commit777a71dd4d901f055967ddbd038d2a74ffce0eb8 (patch)
tree88c05b9d52619a4881c12c752b55ed124f782fc0 /drivers
parent61a73c708f37295892176bc911b178278df6a091 (diff)
downloadop-kernel-dev-777a71dd4d901f055967ddbd038d2a74ffce0eb8.zip
op-kernel-dev-777a71dd4d901f055967ddbd038d2a74ffce0eb8.tar.gz
IB/iser: fix a check of SG alignment for RDMA
dma mapping may include a "compaction" of the sg associated with scsi command. Hence, the size of the maximal prefix of the SG which is aligned for rdma must be compared against the length of the dma mapped sg (mem->dma_nents) and not against the size of it before it was mapped (mem->size). Signed-off-by: Erez Zilber <erezz@voltaire.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/infiniband/ulp/iser/iser_memory.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/infiniband/ulp/iser/iser_memory.c b/drivers/infiniband/ulp/iser/iser_memory.c
index 31950a5..53af956 100644
--- a/drivers/infiniband/ulp/iser/iser_memory.c
+++ b/drivers/infiniband/ulp/iser/iser_memory.c
@@ -378,7 +378,7 @@ int iser_reg_rdma_mem(struct iscsi_iser_cmd_task *iser_ctask,
regd_buf = &iser_ctask->rdma_regd[cmd_dir];
aligned_len = iser_data_buf_aligned_len(mem);
- if (aligned_len != mem->size) {
+ if (aligned_len != mem->dma_nents) {
iser_err("rdma alignment violation %d/%d aligned\n",
aligned_len, mem->size);
iser_data_buf_dump(mem);
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