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-rw-r--r--fs/ocfs2/dlm/dlmcommon.h8
-rw-r--r--fs/ocfs2/dlm/dlmdebug.c10
-rw-r--r--fs/ocfs2/dlm/dlmmaster.c79
3 files changed, 53 insertions, 44 deletions
diff --git a/fs/ocfs2/dlm/dlmcommon.h b/fs/ocfs2/dlm/dlmcommon.h
index 261e26501e57..b232aa0b3345 100644
--- a/fs/ocfs2/dlm/dlmcommon.h
+++ b/fs/ocfs2/dlm/dlmcommon.h
@@ -56,8 +56,8 @@ enum dlm_mle_type {
};
struct dlm_lock_name {
- u8 len;
- u8 name[DLM_LOCKID_NAME_MAX];
+ unsigned int len;
+ unsigned char name[DLM_LOCKID_NAME_MAX];
};
struct dlm_master_list_entry {
@@ -79,8 +79,8 @@ struct dlm_master_list_entry {
struct o2hb_callback_func mle_hb_up;
struct o2hb_callback_func mle_hb_down;
union {
- struct dlm_lock_resource *res;
- struct dlm_lock_name name;
+ struct dlm_lock_resource *mleres;
+ struct dlm_lock_name mlename;
} u;
};
diff --git a/fs/ocfs2/dlm/dlmdebug.c b/fs/ocfs2/dlm/dlmdebug.c
index b32f60a5acfb..c82feb7b00b9 100644
--- a/fs/ocfs2/dlm/dlmdebug.c
+++ b/fs/ocfs2/dlm/dlmdebug.c
@@ -288,15 +288,15 @@ static int dump_mle(struct dlm_master_list_entry *mle, char *buf, int len)
{
int out = 0;
unsigned int namelen;
- const char *name;
+ unsigned char *name;
char *mle_type;
if (mle->type != DLM_MLE_MASTER) {
- namelen = mle->u.name.len;
- name = mle->u.name.name;
+ name = mle->u.mlename.name;
+ namelen = mle->u.mlename.len;
} else {
- namelen = mle->u.res->lockname.len;
- name = mle->u.res->lockname.name;
+ name = (unsigned char *)mle->u.mleres->lockname.name;
+ namelen = mle->u.mleres->lockname.len;
}
if (mle->type == DLM_MLE_BLOCK)
diff --git a/fs/ocfs2/dlm/dlmmaster.c b/fs/ocfs2/dlm/dlmmaster.c
index 0aa4b043f4de..040581e1cd04 100644
--- a/fs/ocfs2/dlm/dlmmaster.c
+++ b/fs/ocfs2/dlm/dlmmaster.c
@@ -68,27 +68,38 @@ static int dlm_do_assert_master(struct dlm_ctxt *dlm,
void *nodemap, u32 flags);
static void dlm_deref_lockres_worker(struct dlm_work_item *item, void *data);
+static inline void __dlm_mle_name(struct dlm_master_list_entry *mle,
+ unsigned char **name, unsigned int *namelen)
+{
+ BUG_ON(mle->type != DLM_MLE_BLOCK &&
+ mle->type != DLM_MLE_MASTER &&
+ mle->type != DLM_MLE_MIGRATION);
+
+ if (mle->type != DLM_MLE_MASTER) {
+ *name = mle->u.mlename.name;
+ *namelen = mle->u.mlename.len;
+ } else {
+ *name = (unsigned char *)mle->u.mleres->lockname.name;
+ *namelen = mle->u.mleres->lockname.len;
+ }
+}
+
static inline int dlm_mle_equal(struct dlm_ctxt *dlm,
struct dlm_master_list_entry *mle,
const char *name,
unsigned int namelen)
{
- struct dlm_lock_resource *res;
+ unsigned char *mlename;
+ unsigned int mlelen;
if (dlm != mle->dlm)
return 0;
- if (mle->type == DLM_MLE_BLOCK ||
- mle->type == DLM_MLE_MIGRATION) {
- if (namelen != mle->u.name.len ||
- memcmp(name, mle->u.name.name, namelen)!=0)
- return 0;
- } else {
- res = mle->u.res;
- if (namelen != res->lockname.len ||
- memcmp(res->lockname.name, name, namelen) != 0)
- return 0;
- }
+ __dlm_mle_name(mle, &mlename, &mlelen);
+
+ if (namelen != mlelen || memcmp(name, mlename, namelen) != 0)
+ return 0;
+
return 1;
}
@@ -295,17 +306,17 @@ static void dlm_init_mle(struct dlm_master_list_entry *mle,
mle->new_master = O2NM_MAX_NODES;
mle->inuse = 0;
+ BUG_ON(mle->type != DLM_MLE_BLOCK &&
+ mle->type != DLM_MLE_MASTER &&
+ mle->type != DLM_MLE_MIGRATION);
+
if (mle->type == DLM_MLE_MASTER) {
BUG_ON(!res);
- mle->u.res = res;
- } else if (mle->type == DLM_MLE_BLOCK) {
- BUG_ON(!name);
- memcpy(mle->u.name.name, name, namelen);
- mle->u.name.len = namelen;
- } else /* DLM_MLE_MIGRATION */ {
+ mle->u.mleres = res;
+ } else {
BUG_ON(!name);
- memcpy(mle->u.name.name, name, namelen);
- mle->u.name.len = namelen;
+ memcpy(mle->u.mlename.name, name, namelen);
+ mle->u.mlename.len = namelen;
}
/* copy off the node_map and register hb callbacks on our copy */
@@ -425,11 +436,11 @@ static void dlm_mle_release(struct kref *kref)
if (mle->type != DLM_MLE_MASTER) {
mlog(0, "calling mle_release for %.*s, type %d\n",
- mle->u.name.len, mle->u.name.name, mle->type);
+ mle->u.mlename.len, mle->u.mlename.name, mle->type);
} else {
mlog(0, "calling mle_release for %.*s, type %d\n",
- mle->u.res->lockname.len,
- mle->u.res->lockname.name, mle->type);
+ mle->u.mleres->lockname.len,
+ mle->u.mleres->lockname.name, mle->type);
}
assert_spin_locked(&dlm->spinlock);
assert_spin_locked(&dlm->master_lock);
@@ -1284,7 +1295,7 @@ static int dlm_restart_lock_mastery(struct dlm_ctxt *dlm,
res->lockname.len,
res->lockname.name);
mle->type = DLM_MLE_MASTER;
- mle->u.res = res;
+ mle->u.mleres = res;
}
}
}
@@ -1323,20 +1334,18 @@ static int dlm_do_master_request(struct dlm_lock_resource *res,
struct dlm_ctxt *dlm = mle->dlm;
struct dlm_master_request request;
int ret, response=0, resend;
+ unsigned char *mlename;
+ unsigned int mlenamelen;
memset(&request, 0, sizeof(request));
request.node_idx = dlm->node_num;
BUG_ON(mle->type == DLM_MLE_MIGRATION);
- if (mle->type != DLM_MLE_MASTER) {
- request.namelen = mle->u.name.len;
- memcpy(request.name, mle->u.name.name, request.namelen);
- } else {
- request.namelen = mle->u.res->lockname.len;
- memcpy(request.name, mle->u.res->lockname.name,
- request.namelen);
- }
+ __dlm_mle_name(mle, &mlename, &mlenamelen);
+
+ request.namelen = (u8)mlenamelen;
+ memcpy(request.name, mlename, request.namelen);
again:
ret = o2net_send_message(DLM_MASTER_REQUEST_MSG, dlm->key, &request,
@@ -3286,9 +3295,9 @@ top:
mle->master, mle->new_master);
/* if there is a lockres associated with this
* mle, find it and set its owner to UNKNOWN */
- hash = dlm_lockid_hash(mle->u.name.name, mle->u.name.len);
- res = __dlm_lookup_lockres(dlm, mle->u.name.name,
- mle->u.name.len, hash);
+ hash = dlm_lockid_hash(mle->u.mlename.name, mle->u.mlename.len);
+ res = __dlm_lookup_lockres(dlm, mle->u.mlename.name,
+ mle->u.mlename.len, hash);
if (res) {
/* unfortunately if we hit this rare case, our
* lock ordering is messed. we need to drop
generated by cgit v1.2.3-70-g09d2 (git 2.47.1) at 2024-12-27 10:56:17 +0000