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| author | Nicholas Bellinger <nab@linux-iscsi.org> | 2014-10-04 01:06:08 +0000 |
|---|---|---|
| committer | Nicholas Bellinger <nab@linux-iscsi.org> | 2014-10-04 05:41:20 +0000 |
| commit | 92404e609a2dffc55a9a22540ed48b6f0edc9c59 (patch) | |
| tree | f815d53d2611a9b0cab864fc70bcffc26c8f043b /drivers/target/target_core_internal.h | |
| parent | e24805637d2d270d7975502e9024d473de86afdb (diff) | |
| download | linux-92404e609a2dffc55a9a22540ed48b6f0edc9c59.tar.bz2 | |
target: Add force_pr_aptpl device attribute
This patch adds a force_pr_aptpl device attribute used to force SPC-3 PR
Activate Persistence across Target Power Loss (APTPL) operation. This
makes PR metadata write-out occur during state change regardless if new
PERSISTENT_RESERVE_OUT CDBs have their APTPL feature bit set.
This is useful during H/A failover in active/passive setups where all PR
state is being re-created on a different node, driven by configfs backend
device + export layout and pre-loaded $DEV/pr/res_aptpl_metadata.
Cc: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'drivers/target/target_core_internal.h')
| -rw-r--r-- | drivers/target/target_core_internal.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/target/target_core_internal.h b/drivers/target/target_core_internal.h index 42ef4ab70585..e31f42f369ff 100644 --- a/drivers/target/target_core_internal.h +++ b/drivers/target/target_core_internal.h @@ -38,6 +38,7 @@ int se_dev_set_emulate_3pc(struct se_device *, int); int se_dev_set_pi_prot_type(struct se_device *, int); int se_dev_set_pi_prot_format(struct se_device *, int); int se_dev_set_enforce_pr_isids(struct se_device *, int); +int se_dev_set_force_pr_aptpl(struct se_device *, int); int se_dev_set_is_nonrot(struct se_device *, int); int se_dev_set_emulate_rest_reord(struct se_device *dev, int); int se_dev_set_queue_depth(struct se_device *, u32); |