This patch added netlink support for passthrough Persistent Reservation information.
Signed-off-by: Zhu Lingshan <[email protected]> --- drivers/target/target_core_user.c | 35 +++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) diff --git a/drivers/target/target_core_user.c b/drivers/target/target_core_user.c index a89c866a755d..09a341e935a9 100644 --- a/drivers/target/target_core_user.c +++ b/drivers/target/target_core_user.c @@ -348,6 +348,7 @@ static struct nla_policy tcmu_attr_policy[TCMU_ATTR_MAX+1] = { [TCMU_ATTR_CMD_STATUS] = { .type = NLA_S32 }, [TCMU_ATTR_DEVICE_ID] = { .type = NLA_U32 }, [TCMU_ATTR_SUPP_KERN_CMD_REPLY] = { .type = NLA_U8 }, + [TCMU_ATTR_PR_INFO] = { .type = NLA_STRING }, }; static int tcmu_genl_cmd_done(struct genl_info *info, int completed_cmd) @@ -389,6 +390,16 @@ static int tcmu_genl_cmd_done(struct genl_info *info, int completed_cmd) nl_cmd->status = rc; } + if (completed_cmd == TCMU_CMD_GET_PR_INFO) { + if (!info->attrs[TCMU_ATTR_PR_INFO]) { + ret = -EINVAL; + } else { + nla_strlcpy(udev->pr_info.pr_info_buf, + info->attrs[TCMU_ATTR_PR_INFO], + TCMU_PR_INFO_XATTR_MAX_SIZE); + } + } + spin_unlock(&udev->nl_cmd_lock); if (!is_removed) target_undepend_item(&dev->dev_group.cg_item); @@ -413,6 +424,18 @@ static int tcmu_genl_reconfig_dev_done(struct sk_buff *skb, return tcmu_genl_cmd_done(info, TCMU_CMD_RECONFIG_DEVICE); } +static int tcmu_genl_get_pr_info_done(struct sk_buff *skb, + struct genl_info *info) +{ + return tcmu_genl_cmd_done(info, TCMU_CMD_GET_PR_INFO); +} + +static int tcmu_genl_set_pr_info_done(struct sk_buff *skb, + struct genl_info *info) +{ + return tcmu_genl_cmd_done(info, TCMU_CMD_SET_PR_INFO); +} + static int tcmu_genl_set_features(struct sk_buff *skb, struct genl_info *info) { if (info->attrs[TCMU_ATTR_SUPP_KERN_CMD_REPLY]) { @@ -450,6 +473,18 @@ static const struct genl_ops tcmu_genl_ops[] = { .policy = tcmu_attr_policy, .doit = tcmu_genl_reconfig_dev_done, }, + { + .cmd = TCMU_CMD_GET_PR_INFO_DONE, + .flags = GENL_ADMIN_PERM, + .policy = tcmu_attr_policy, + .doit = tcmu_genl_get_pr_info_done, + }, + { + .cmd = TCMU_CMD_SET_PR_INFO_DONE, + .flags = GENL_ADMIN_PERM, + .policy = tcmu_attr_policy, + .doit = tcmu_genl_set_pr_info_done, + }, }; /* Our generic netlink family */ -- 2.17.1
