This patch added a struct tcmu_dev_pr_info, which can help
store the string buffer we got from a TCMU device record (for
example, for RBD devices, the records should be stored in
their metadata). So that we can decode / encode them.
Signed-off-by: Zhu Lingshan <lszhu@xxxxxxxx>
---
drivers/target/target_core_user.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/drivers/target/target_core_user.c b/drivers/target/target_core_user.c
index 1dea66a851dd..1efc2800ca14 100644
--- a/drivers/target/target_core_user.c
+++ b/drivers/target/target_core_user.c
@@ -110,6 +110,14 @@ struct tcmu_nl_cmd {
int status;
};
+/* This struct help to store the string buffer which contain
+ * Persistent Reservation info record from the device metadata.
+ */
+struct tcmu_dev_pr_info {
+ struct mutex pr_info_lock;
+ char *pr_info_buf;
+ };
+
struct tcmu_dev {
struct list_head node;
struct kref kref;
@@ -165,6 +173,7 @@ struct tcmu_dev {
char dev_config[TCMU_CONFIG_LEN];
int nl_reply_supported;
+ struct tcmu_dev_pr_info pr_info;
};
#define TCMU_DEV(_se_dev) container_of(_se_dev, struct tcmu_dev, se_dev)
--
2.17.1
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