diff options
Diffstat (limited to 'fs/ocfs2/stack_o2cb.c')
-rw-r--r-- | fs/ocfs2/stack_o2cb.c | 41 |
1 files changed, 33 insertions, 8 deletions
diff --git a/fs/ocfs2/stack_o2cb.c b/fs/ocfs2/stack_o2cb.c index c9bc3541a33f..ac1d74c63bf5 100644 --- a/fs/ocfs2/stack_o2cb.c +++ b/fs/ocfs2/stack_o2cb.c | |||
@@ -18,7 +18,7 @@ | |||
18 | */ | 18 | */ |
19 | 19 | ||
20 | #include <linux/crc32.h> | 20 | #include <linux/crc32.h> |
21 | #include <linux/kmod.h> | 21 | #include <linux/module.h> |
22 | 22 | ||
23 | /* Needed for AOP_TRUNCATED_PAGE in mlog_errno() */ | 23 | /* Needed for AOP_TRUNCATED_PAGE in mlog_errno() */ |
24 | #include <linux/fs.h> | 24 | #include <linux/fs.h> |
@@ -33,6 +33,8 @@ struct o2dlm_private { | |||
33 | struct dlm_eviction_cb op_eviction_cb; | 33 | struct dlm_eviction_cb op_eviction_cb; |
34 | }; | 34 | }; |
35 | 35 | ||
36 | static struct ocfs2_stack_plugin o2cb_stack; | ||
37 | |||
36 | /* These should be identical */ | 38 | /* These should be identical */ |
37 | #if (DLM_LOCK_IV != LKM_IVMODE) | 39 | #if (DLM_LOCK_IV != LKM_IVMODE) |
38 | # error Lock modes do not match | 40 | # error Lock modes do not match |
@@ -158,23 +160,23 @@ static int dlm_status_to_errno(enum dlm_status status) | |||
158 | 160 | ||
159 | static void o2dlm_lock_ast_wrapper(void *astarg) | 161 | static void o2dlm_lock_ast_wrapper(void *astarg) |
160 | { | 162 | { |
161 | BUG_ON(stack_glue_lproto == NULL); | 163 | BUG_ON(o2cb_stack.sp_proto == NULL); |
162 | 164 | ||
163 | stack_glue_lproto->lp_lock_ast(astarg); | 165 | o2cb_stack.sp_proto->lp_lock_ast(astarg); |
164 | } | 166 | } |
165 | 167 | ||
166 | static void o2dlm_blocking_ast_wrapper(void *astarg, int level) | 168 | static void o2dlm_blocking_ast_wrapper(void *astarg, int level) |
167 | { | 169 | { |
168 | BUG_ON(stack_glue_lproto == NULL); | 170 | BUG_ON(o2cb_stack.sp_proto == NULL); |
169 | 171 | ||
170 | stack_glue_lproto->lp_blocking_ast(astarg, level); | 172 | o2cb_stack.sp_proto->lp_blocking_ast(astarg, level); |
171 | } | 173 | } |
172 | 174 | ||
173 | static void o2dlm_unlock_ast_wrapper(void *astarg, enum dlm_status status) | 175 | static void o2dlm_unlock_ast_wrapper(void *astarg, enum dlm_status status) |
174 | { | 176 | { |
175 | int error = dlm_status_to_errno(status); | 177 | int error = dlm_status_to_errno(status); |
176 | 178 | ||
177 | BUG_ON(stack_glue_lproto == NULL); | 179 | BUG_ON(o2cb_stack.sp_proto == NULL); |
178 | 180 | ||
179 | /* | 181 | /* |
180 | * In o2dlm, you can get both the lock_ast() for the lock being | 182 | * In o2dlm, you can get both the lock_ast() for the lock being |
@@ -190,7 +192,7 @@ static void o2dlm_unlock_ast_wrapper(void *astarg, enum dlm_status status) | |||
190 | if (status == DLM_CANCELGRANT) | 192 | if (status == DLM_CANCELGRANT) |
191 | return; | 193 | return; |
192 | 194 | ||
193 | stack_glue_lproto->lp_unlock_ast(astarg, error); | 195 | o2cb_stack.sp_proto->lp_unlock_ast(astarg, error); |
194 | } | 196 | } |
195 | 197 | ||
196 | static int o2cb_dlm_lock(struct ocfs2_cluster_connection *conn, | 198 | static int o2cb_dlm_lock(struct ocfs2_cluster_connection *conn, |
@@ -267,6 +269,7 @@ static int o2cb_cluster_connect(struct ocfs2_cluster_connection *conn) | |||
267 | struct dlm_protocol_version dlm_version; | 269 | struct dlm_protocol_version dlm_version; |
268 | 270 | ||
269 | BUG_ON(conn == NULL); | 271 | BUG_ON(conn == NULL); |
272 | BUG_ON(o2cb_stack.sp_proto == NULL); | ||
270 | 273 | ||
271 | /* for now we only have one cluster/node, make sure we see it | 274 | /* for now we only have one cluster/node, make sure we see it |
272 | * in the heartbeat universe */ | 275 | * in the heartbeat universe */ |
@@ -314,7 +317,8 @@ out: | |||
314 | return rc; | 317 | return rc; |
315 | } | 318 | } |
316 | 319 | ||
317 | static int o2cb_cluster_disconnect(struct ocfs2_cluster_connection *conn) | 320 | static int o2cb_cluster_disconnect(struct ocfs2_cluster_connection *conn, |
321 | int hangup_pending) | ||
318 | { | 322 | { |
319 | struct dlm_ctxt *dlm = conn->cc_lockspace; | 323 | struct dlm_ctxt *dlm = conn->cc_lockspace; |
320 | struct o2dlm_private *priv = conn->cc_private; | 324 | struct o2dlm_private *priv = conn->cc_private; |
@@ -393,3 +397,24 @@ struct ocfs2_stack_operations o2cb_stack_ops = { | |||
393 | .dump_lksb = o2cb_dump_lksb, | 397 | .dump_lksb = o2cb_dump_lksb, |
394 | }; | 398 | }; |
395 | 399 | ||
400 | static struct ocfs2_stack_plugin o2cb_stack = { | ||
401 | .sp_name = "o2cb", | ||
402 | .sp_ops = &o2cb_stack_ops, | ||
403 | .sp_owner = THIS_MODULE, | ||
404 | }; | ||
405 | |||
406 | static int __init o2cb_stack_init(void) | ||
407 | { | ||
408 | return ocfs2_stack_glue_register(&o2cb_stack); | ||
409 | } | ||
410 | |||
411 | static void __exit o2cb_stack_exit(void) | ||
412 | { | ||
413 | ocfs2_stack_glue_unregister(&o2cb_stack); | ||
414 | } | ||
415 | |||
416 | MODULE_AUTHOR("Oracle"); | ||
417 | MODULE_DESCRIPTION("ocfs2 driver for the classic o2cb stack"); | ||
418 | MODULE_LICENSE("GPL"); | ||
419 | module_init(o2cb_stack_init); | ||
420 | module_exit(o2cb_stack_exit); | ||