diff options
| author |   Andy Grover <agrover@redhat.com> | 2013-05-28 16:55:21 -0700 |
|---|---|---|
| committer |   Nicholas Bellinger <nab@linux-iscsi.org> | 2013-06-14 00:27:36 -0700 |
| commit | 670caa9f762647802a1b19749f127ac28949ca5a (patch) | |
| tree | fb1f2efecba04a83708c70c7e8b3fb96aa084fd2 /drivers/target | |
| parent | target: Make virtual_lun0 a nullio device (diff) | |
| download | linux-dev-670caa9f762647802a1b19749f127ac28949ca5a.tar.xz linux-dev-670caa9f762647802a1b19749f127ac28949ca5a.zip | |
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/target')
| -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 0921a64b5550..51127d15d5c5 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; |