fs: dlm: remove deprecated code parts

This patch removes code parts which was declared deprecated by
commit 6b0afc0cc3e9 ("fs: dlm: don't use deprecated timeout features by
default"). This contains the following dlm functionality:

- start a cancel of a dlm request did not complete after certain timeout:
  The current way how dlm cancellation works and interfering with other
  dlm requests triggered by the user can end in an overlapping and
  returning in -EBUSY. The most user don't handle this case and are
  unaware that DLM can return such errno in such situation. Due the
  timeout the user are mostly unaware when this happens.
- start a netlink warning messages for user space if dlm requests did
  not complete after certain timeout:
  This feature was never being built in the only known dlm user space side.
  As we are to remove the timeout cancellation feature we can directly
  remove this feature as well.

There might be the possibility to bring the timeout cancellation feature
back. However the current way of handling the -EBUSY case which is only
a software limitation and not a hardware limitation should be changed.
We minimize the current code base in DLM cancellation feature to not have
to deal with those existing features while solving the DLM cancellation
feature in general.

UAPI define DLM_LSFL_TIMEWARN is commented as deprecated and reserved
value. We should avoid at first to give it a new meaning but let
possible users still compile by keeping this define. In far future we
can give this flag a new meaning. The same for the DLM_LKF_TIMEOUT lock
request flag.

Signed-off-by: Alexander Aring <aahringo@redhat.com>
Signed-off-by: David Teigland <teigland@redhat.com>

1 files changed, 0 insertions, 21 deletions

diff --git a/fs/dlm/config.c b/fs/dlm/config.c
index 20b60709eccf..d31319d08581 100644
--- a/fs/dlm/config.c
+++ b/fs/dlm/config.c
@@ -75,9 +75,6 @@ struct dlm_cluster {
 	unsigned int cl_log_info;
 	unsigned int cl_protocol;
 	unsigned int cl_mark;
-#ifdef CONFIG_DLM_DEPRECATED_API
-	unsigned int cl_timewarn_cs;
-#endif
 	unsigned int cl_new_rsb_count;
 	unsigned int cl_recover_callbacks;
 	char cl_cluster_name[DLM_LOCKSPACE_LEN];
@@ -103,9 +100,6 @@ enum {
 	CLUSTER_ATTR_LOG_INFO,
 	CLUSTER_ATTR_PROTOCOL,
 	CLUSTER_ATTR_MARK,
-#ifdef CONFIG_DLM_DEPRECATED_API
-	CLUSTER_ATTR_TIMEWARN_CS,
-#endif
 	CLUSTER_ATTR_NEW_RSB_COUNT,
 	CLUSTER_ATTR_RECOVER_CALLBACKS,
 	CLUSTER_ATTR_CLUSTER_NAME,
@@ -226,9 +220,6 @@ CLUSTER_ATTR(log_debug, NULL);
 CLUSTER_ATTR(log_info, NULL);
 CLUSTER_ATTR(protocol, dlm_check_protocol_and_dlm_running);
 CLUSTER_ATTR(mark, NULL);
-#ifdef CONFIG_DLM_DEPRECATED_API
-CLUSTER_ATTR(timewarn_cs, dlm_check_zero);
-#endif
 CLUSTER_ATTR(new_rsb_count, NULL);
 CLUSTER_ATTR(recover_callbacks, NULL);
 
@@ -243,9 +234,6 @@ static struct configfs_attribute *cluster_attrs[] = {
 	[CLUSTER_ATTR_LOG_INFO] = &cluster_attr_log_info,
 	[CLUSTER_ATTR_PROTOCOL] = &cluster_attr_protocol,
 	[CLUSTER_ATTR_MARK] = &cluster_attr_mark,
-#ifdef CONFIG_DLM_DEPRECATED_API
-	[CLUSTER_ATTR_TIMEWARN_CS] = &cluster_attr_timewarn_cs,
-#endif
 	[CLUSTER_ATTR_NEW_RSB_COUNT] = &cluster_attr_new_rsb_count,
 	[CLUSTER_ATTR_RECOVER_CALLBACKS] = &cluster_attr_recover_callbacks,
 	[CLUSTER_ATTR_CLUSTER_NAME] = &cluster_attr_cluster_name,
@@ -436,9 +424,6 @@ static struct config_group *make_cluster(struct config_group *g,
 	cl->cl_log_debug = dlm_config.ci_log_debug;
 	cl->cl_log_info = dlm_config.ci_log_info;
 	cl->cl_protocol = dlm_config.ci_protocol;
-#ifdef CONFIG_DLM_DEPRECATED_API
-	cl->cl_timewarn_cs = dlm_config.ci_timewarn_cs;
-#endif
 	cl->cl_new_rsb_count = dlm_config.ci_new_rsb_count;
 	cl->cl_recover_callbacks = dlm_config.ci_recover_callbacks;
 	memcpy(cl->cl_cluster_name, dlm_config.ci_cluster_name,
@@ -959,9 +944,6 @@ int dlm_our_addr(struct sockaddr_storage *addr, int num)
 #define DEFAULT_LOG_INFO           1
 #define DEFAULT_PROTOCOL           DLM_PROTO_TCP
 #define DEFAULT_MARK               0
-#ifdef CONFIG_DLM_DEPRECATED_API
-#define DEFAULT_TIMEWARN_CS      500 /* 5 sec = 500 centiseconds */
-#endif
 #define DEFAULT_NEW_RSB_COUNT    128
 #define DEFAULT_RECOVER_CALLBACKS  0
 #define DEFAULT_CLUSTER_NAME      ""
@@ -977,9 +959,6 @@ struct dlm_config_info dlm_config = {
 	.ci_log_info = DEFAULT_LOG_INFO,
 	.ci_protocol = DEFAULT_PROTOCOL,
 	.ci_mark = DEFAULT_MARK,
-#ifdef CONFIG_DLM_DEPRECATED_API
-	.ci_timewarn_cs = DEFAULT_TIMEWARN_CS,
-#endif
 	.ci_new_rsb_count = DEFAULT_NEW_RSB_COUNT,
 	.ci_recover_callbacks = DEFAULT_RECOVER_CALLBACKS,
 	.ci_cluster_name = DEFAULT_CLUSTER_NAME