diff options
author | Andy Grover <agrover@redhat.com> | 2013-05-28 23:55:21 (GMT) |
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committer | Nicholas Bellinger <nab@linux-iscsi.org> | 2013-06-14 07:27:36 (GMT) |
commit | 670caa9f762647802a1b19749f127ac28949ca5a (patch) | |
tree | fb1f2efecba04a83708c70c7e8b3fb96aa084fd2 /drivers | |
parent | db5d1c3ccc37d1f2066f5dc1f1c9c91a2f1f2956 (diff) | |
download | linux-fsl-qoriq-670caa9f762647802a1b19749f127ac28949ca5a.tar.xz |
target: Don't allocate pages for NULLIO devices
Signed-off-by: Andy Grover <agrover@redhat.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/target/target_core_rd.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/target/target_core_rd.c b/drivers/target/target_core_rd.c index 0921a64..51127d1 100644 --- a/drivers/target/target_core_rd.c +++ b/drivers/target/target_core_rd.c @@ -139,6 +139,11 @@ static int rd_build_device_space(struct rd_dev *rd_dev) rd_dev->rd_page_count); return -EINVAL; } + + /* Don't need backing pages for NULLIO */ + if (rd_dev->rd_flags & RDF_NULLIO) + return 0; + total_sg_needed = rd_dev->rd_page_count; sg_tables = (total_sg_needed / max_sg_per_table) + 1; |