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authorChristoph Hellwig <hch@infradead.org>2011-10-14 07:30:17 -0400
committerNicholas Bellinger <nab@linux-iscsi.org>2011-10-24 03:21:31 +0000
commitf55918fa3202a646dad2404f7de008108edc5048 (patch)
tree6b39361985ad31ce9511763e504dfdf89e92412b /drivers/target/target_core_device.c
parentdf5fa691ce61aedd3e4dbcf960ee44f05b797d8b (diff)
target: clean up the backend interface to caching parameters
Remove the dpo_emulated, fua_write_emulated, fua_read_emulated and write_cache_emulated methods, and replace them with a simple bitfields in se_subsystem_api in those cases where they ever returned one. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'drivers/target/target_core_device.c')
-rw-r--r--drivers/target/target_core_device.c55
1 files changed, 15 insertions, 40 deletions
diff --git a/drivers/target/target_core_device.c b/drivers/target/target_core_device.c
index ca6e4a4df13..81352b7f913 100644
--- a/drivers/target/target_core_device.c
+++ b/drivers/target/target_core_device.c
@@ -972,36 +972,24 @@ int se_dev_set_unmap_granularity_alignment(
int se_dev_set_emulate_dpo(struct se_device *dev, int flag)
{
- if ((flag != 0) && (flag != 1)) {
+ if (flag != 0 && flag != 1) {
pr_err("Illegal value %d\n", flag);
return -EINVAL;
}
- if (dev->transport->dpo_emulated == NULL) {
- pr_err("dev->transport->dpo_emulated is NULL\n");
- return -EINVAL;
- }
- if (dev->transport->dpo_emulated(dev) == 0) {
- pr_err("dev->transport->dpo_emulated not supported\n");
- return -EINVAL;
- }
- dev->se_sub_dev->se_dev_attrib.emulate_dpo = flag;
- pr_debug("dev[%p]: SE Device Page Out (DPO) Emulation"
- " bit: %d\n", dev, dev->se_sub_dev->se_dev_attrib.emulate_dpo);
- return 0;
+
+ pr_err("dpo_emulated not supported\n");
+ return -EINVAL;
}
int se_dev_set_emulate_fua_write(struct se_device *dev, int flag)
{
- if ((flag != 0) && (flag != 1)) {
+ if (flag != 0 && flag != 1) {
pr_err("Illegal value %d\n", flag);
return -EINVAL;
}
- if (dev->transport->fua_write_emulated == NULL) {
- pr_err("dev->transport->fua_write_emulated is NULL\n");
- return -EINVAL;
- }
- if (dev->transport->fua_write_emulated(dev) == 0) {
- pr_err("dev->transport->fua_write_emulated not supported\n");
+
+ if (dev->transport->fua_write_emulated == 0) {
+ pr_err("fua_write_emulated not supported\n");
return -EINVAL;
}
dev->se_sub_dev->se_dev_attrib.emulate_fua_write = flag;
@@ -1012,36 +1000,23 @@ int se_dev_set_emulate_fua_write(struct se_device *dev, int flag)
int se_dev_set_emulate_fua_read(struct se_device *dev, int flag)
{
- if ((flag != 0) && (flag != 1)) {
+ if (flag != 0 && flag != 1) {
pr_err("Illegal value %d\n", flag);
return -EINVAL;
}
- if (dev->transport->fua_read_emulated == NULL) {
- pr_err("dev->transport->fua_read_emulated is NULL\n");
- return -EINVAL;
- }
- if (dev->transport->fua_read_emulated(dev) == 0) {
- pr_err("dev->transport->fua_read_emulated not supported\n");
- return -EINVAL;
- }
- dev->se_sub_dev->se_dev_attrib.emulate_fua_read = flag;
- pr_debug("dev[%p]: SE Device Forced Unit Access READs: %d\n",
- dev, dev->se_sub_dev->se_dev_attrib.emulate_fua_read);
- return 0;
+
+ pr_err("ua read emulated not supported\n");
+ return -EINVAL;
}
int se_dev_set_emulate_write_cache(struct se_device *dev, int flag)
{
- if ((flag != 0) && (flag != 1)) {
+ if (flag != 0 && flag != 1) {
pr_err("Illegal value %d\n", flag);
return -EINVAL;
}
- if (dev->transport->write_cache_emulated == NULL) {
- pr_err("dev->transport->write_cache_emulated is NULL\n");
- return -EINVAL;
- }
- if (dev->transport->write_cache_emulated(dev) == 0) {
- pr_err("dev->transport->write_cache_emulated not supported\n");
+ if (dev->transport->write_cache_emulated == 0) {
+ pr_err("write_cache_emulated not supported\n");
return -EINVAL;
}
dev->se_sub_dev->se_dev_attrib.emulate_write_cache = flag;