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ocfs2: Attach the connection to the lksb

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We're going to want it in the ast functions, so we convert union
ocfs2_dlm_lksb to struct ocfs2_dlm_lksb and let it carry the connection.

Signed-off-by: Joel Becker <joel.becker@oracle.com>
This commit is contained in:
Joel Becker 2010-01-29 14:46:44 -08:00
parent a796d2862a
commit c0e4133851
6 changed files with 56 additions and 47 deletions
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8
fs/ocfs2/dlmglue.c
View File

@ -297,7 +297,7 @@ static inline int ocfs2_is_inode_lock(struct ocfs2_lock_res *lockres)
lockres->l_type == OCFS2_LOCK_TYPE_OPEN;
}
static inline struct ocfs2_lock_res *ocfs2_lksb_to_lock_res(union ocfs2_dlm_lksb *lksb)
static inline struct ocfs2_lock_res *ocfs2_lksb_to_lock_res(struct ocfs2_dlm_lksb *lksb)
{
return container_of(lksb, struct ocfs2_lock_res, l_lksb);
}
@ -1046,7 +1046,7 @@ static unsigned int lockres_set_pending(struct ocfs2_lock_res *lockres)
}
static void ocfs2_blocking_ast(union ocfs2_dlm_lksb *lksb, int level)
static void ocfs2_blocking_ast(struct ocfs2_dlm_lksb *lksb, int level)
{
struct ocfs2_lock_res *lockres = ocfs2_lksb_to_lock_res(lksb);
struct ocfs2_super *osb = ocfs2_get_lockres_osb(lockres);
@ -1077,7 +1077,7 @@ static void ocfs2_blocking_ast(union ocfs2_dlm_lksb *lksb, int level)
ocfs2_wake_downconvert_thread(osb);
}
static void ocfs2_locking_ast(union ocfs2_dlm_lksb *lksb)
static void ocfs2_locking_ast(struct ocfs2_dlm_lksb *lksb)
{
struct ocfs2_lock_res *lockres = ocfs2_lksb_to_lock_res(lksb);
struct ocfs2_super *osb = ocfs2_get_lockres_osb(lockres);
@ -3058,7 +3058,7 @@ void ocfs2_dlm_shutdown(struct ocfs2_super *osb,
mlog_exit_void();
}
static void ocfs2_unlock_ast(union ocfs2_dlm_lksb *lksb, int error)
static void ocfs2_unlock_ast(struct ocfs2_dlm_lksb *lksb, int error)
{
struct ocfs2_lock_res *lockres = ocfs2_lksb_to_lock_res(lksb);
unsigned long flags;

2
fs/ocfs2/ocfs2.h
View File

@ -159,7 +159,7 @@ struct ocfs2_lock_res {
int l_level;
unsigned int l_ro_holders;
unsigned int l_ex_holders;
union ocfs2_dlm_lksb l_lksb;
struct ocfs2_dlm_lksb l_lksb;
/* used from AST/BAST funcs. */
enum ocfs2_ast_action l_action;

18
fs/ocfs2/stack_o2cb.c
View File

@ -161,7 +161,7 @@ static int dlm_status_to_errno(enum dlm_status status)
static void o2dlm_lock_ast_wrapper(void *astarg)
{
union ocfs2_dlm_lksb *lksb = astarg;
struct ocfs2_dlm_lksb *lksb = astarg;
BUG_ON(o2cb_stack.sp_proto == NULL);
@ -170,7 +170,7 @@ static void o2dlm_lock_ast_wrapper(void *astarg)
static void o2dlm_blocking_ast_wrapper(void *astarg, int level)
{
union ocfs2_dlm_lksb *lksb = astarg;
struct ocfs2_dlm_lksb *lksb = astarg;
BUG_ON(o2cb_stack.sp_proto == NULL);
@ -179,7 +179,7 @@ static void o2dlm_blocking_ast_wrapper(void *astarg, int level)
static void o2dlm_unlock_ast_wrapper(void *astarg, enum dlm_status status)
{
union ocfs2_dlm_lksb *lksb = astarg;
struct ocfs2_dlm_lksb *lksb = astarg;
int error = dlm_status_to_errno(status);
@ -204,7 +204,7 @@ static void o2dlm_unlock_ast_wrapper(void *astarg, enum dlm_status status)
static int o2cb_dlm_lock(struct ocfs2_cluster_connection *conn,
int mode,
union ocfs2_dlm_lksb *lksb,
struct ocfs2_dlm_lksb *lksb,
u32 flags,
void *name,
unsigned int namelen)
@ -223,7 +223,7 @@ static int o2cb_dlm_lock(struct ocfs2_cluster_connection *conn,
}
static int o2cb_dlm_unlock(struct ocfs2_cluster_connection *conn,
union ocfs2_dlm_lksb *lksb,
struct ocfs2_dlm_lksb *lksb,
u32 flags)
{
enum dlm_status status;
@ -236,7 +236,7 @@ static int o2cb_dlm_unlock(struct ocfs2_cluster_connection *conn,
return ret;
}
static int o2cb_dlm_lock_status(union ocfs2_dlm_lksb *lksb)
static int o2cb_dlm_lock_status(struct ocfs2_dlm_lksb *lksb)
{
return dlm_status_to_errno(lksb->lksb_o2dlm.status);
}
@ -246,17 +246,17 @@ static int o2cb_dlm_lock_status(union ocfs2_dlm_lksb *lksb)
* contents, it will zero out the LVB. Thus the caller can always trust
* the contents.
*/
static int o2cb_dlm_lvb_valid(union ocfs2_dlm_lksb *lksb)
static int o2cb_dlm_lvb_valid(struct ocfs2_dlm_lksb *lksb)
{
return 1;
}
static void *o2cb_dlm_lvb(union ocfs2_dlm_lksb *lksb)
static void *o2cb_dlm_lvb(struct ocfs2_dlm_lksb *lksb)
{
return (void *)(lksb->lksb_o2dlm.lvb);
}
static void o2cb_dump_lksb(union ocfs2_dlm_lksb *lksb)
static void o2cb_dump_lksb(struct ocfs2_dlm_lksb *lksb)
{
dlm_print_one_lock(lksb->lksb_o2dlm.lockid);
}

16
fs/ocfs2/stack_user.c
View File

@ -665,7 +665,7 @@ static void ocfs2_control_exit(void)
static void fsdlm_lock_ast_wrapper(void *astarg)
{
union ocfs2_dlm_lksb *lksb = astarg;
struct ocfs2_dlm_lksb *lksb = astarg;
int status = lksb->lksb_fsdlm.sb_status;
BUG_ON(ocfs2_user_plugin.sp_proto == NULL);
@ -688,7 +688,7 @@ static void fsdlm_lock_ast_wrapper(void *astarg)
static void fsdlm_blocking_ast_wrapper(void *astarg, int level)
{
union ocfs2_dlm_lksb *lksb = astarg;
struct ocfs2_dlm_lksb *lksb = astarg;
BUG_ON(ocfs2_user_plugin.sp_proto == NULL);
@ -697,7 +697,7 @@ static void fsdlm_blocking_ast_wrapper(void *astarg, int level)
static int user_dlm_lock(struct ocfs2_cluster_connection *conn,
int mode,
union ocfs2_dlm_lksb *lksb,
struct ocfs2_dlm_lksb *lksb,
u32 flags,
void *name,
unsigned int namelen)
@ -716,7 +716,7 @@ static int user_dlm_lock(struct ocfs2_cluster_connection *conn,
}
static int user_dlm_unlock(struct ocfs2_cluster_connection *conn,
union ocfs2_dlm_lksb *lksb,
struct ocfs2_dlm_lksb *lksb,
u32 flags)
{
int ret;
@ -726,19 +726,19 @@ static int user_dlm_unlock(struct ocfs2_cluster_connection *conn,
return ret;
}
static int user_dlm_lock_status(union ocfs2_dlm_lksb *lksb)
static int user_dlm_lock_status(struct ocfs2_dlm_lksb *lksb)
{
return lksb->lksb_fsdlm.sb_status;
}
static int user_dlm_lvb_valid(union ocfs2_dlm_lksb *lksb)
static int user_dlm_lvb_valid(struct ocfs2_dlm_lksb *lksb)
{
int invalid = lksb->lksb_fsdlm.sb_flags & DLM_SBF_VALNOTVALID;
return !invalid;
}
static void *user_dlm_lvb(union ocfs2_dlm_lksb *lksb)
static void *user_dlm_lvb(struct ocfs2_dlm_lksb *lksb)
{
if (!lksb->lksb_fsdlm.sb_lvbptr)
lksb->lksb_fsdlm.sb_lvbptr = (char *)lksb +
@ -746,7 +746,7 @@ static void *user_dlm_lvb(union ocfs2_dlm_lksb *lksb)
return (void *)(lksb->lksb_fsdlm.sb_lvbptr);
}
static void user_dlm_dump_lksb(union ocfs2_dlm_lksb *lksb)
static void user_dlm_dump_lksb(struct ocfs2_dlm_lksb *lksb)
{
}

17
fs/ocfs2/stackglue.c
View File

@ -240,47 +240,52 @@ EXPORT_SYMBOL_GPL(ocfs2_stack_glue_set_locking_protocol);
*/
int ocfs2_dlm_lock(struct ocfs2_cluster_connection *conn,
int mode,
union ocfs2_dlm_lksb *lksb,
struct ocfs2_dlm_lksb *lksb,
u32 flags,
void *name,
unsigned int namelen)
{
BUG_ON(lproto == NULL);
if (!lksb->lksb_conn)
lksb->lksb_conn = conn;
else
BUG_ON(lksb->lksb_conn != conn);
return active_stack->sp_ops->dlm_lock(conn, mode, lksb, flags,
name, namelen);
}
EXPORT_SYMBOL_GPL(ocfs2_dlm_lock);
int ocfs2_dlm_unlock(struct ocfs2_cluster_connection *conn,
union ocfs2_dlm_lksb *lksb,
struct ocfs2_dlm_lksb *lksb,
u32 flags)
{
BUG_ON(lproto == NULL);
BUG_ON(lksb->lksb_conn == NULL);
return active_stack->sp_ops->dlm_unlock(conn, lksb, flags);
}
EXPORT_SYMBOL_GPL(ocfs2_dlm_unlock);
int ocfs2_dlm_lock_status(union ocfs2_dlm_lksb *lksb)
int ocfs2_dlm_lock_status(struct ocfs2_dlm_lksb *lksb)
{
return active_stack->sp_ops->lock_status(lksb);
}
EXPORT_SYMBOL_GPL(ocfs2_dlm_lock_status);
int ocfs2_dlm_lvb_valid(union ocfs2_dlm_lksb *lksb)
int ocfs2_dlm_lvb_valid(struct ocfs2_dlm_lksb *lksb)
{
return active_stack->sp_ops->lvb_valid(lksb);
}
EXPORT_SYMBOL_GPL(ocfs2_dlm_lvb_valid);
void *ocfs2_dlm_lvb(union ocfs2_dlm_lksb *lksb)
void *ocfs2_dlm_lvb(struct ocfs2_dlm_lksb *lksb)
{
return active_stack->sp_ops->lock_lvb(lksb);
}
EXPORT_SYMBOL_GPL(ocfs2_dlm_lvb);
void ocfs2_dlm_dump_lksb(union ocfs2_dlm_lksb *lksb)
void ocfs2_dlm_dump_lksb(struct ocfs2_dlm_lksb *lksb)
{
active_stack->sp_ops->dump_lksb(lksb);
}

36
fs/ocfs2/stackglue.h
View File

@ -70,20 +70,24 @@ struct fsdlm_lksb_plus_lvb {
* size of the union is known. Lock status structures are embedded in
* ocfs2 inodes.
*/
union ocfs2_dlm_lksb {
struct ocfs2_cluster_connection;
struct ocfs2_dlm_lksb {
union {
struct dlm_lockstatus lksb_o2dlm;
struct dlm_lksb lksb_fsdlm;
struct fsdlm_lksb_plus_lvb padding;
};
struct ocfs2_cluster_connection *lksb_conn;
};
/*
* The ocfs2_locking_protocol defines the handlers called on ocfs2's behalf.
*/
struct ocfs2_locking_protocol {
struct ocfs2_protocol_version lp_max_version;
void (*lp_lock_ast)(union ocfs2_dlm_lksb *lksb);
void (*lp_blocking_ast)(union ocfs2_dlm_lksb *lksb, int level);
void (*lp_unlock_ast)(union ocfs2_dlm_lksb *lksb, int error);
void (*lp_lock_ast)(struct ocfs2_dlm_lksb *lksb);
void (*lp_blocking_ast)(struct ocfs2_dlm_lksb *lksb, int level);
void (*lp_unlock_ast)(struct ocfs2_dlm_lksb *lksb, int error);
};
@ -161,7 +165,7 @@ struct ocfs2_stack_operations {
*/
int (*dlm_lock)(struct ocfs2_cluster_connection *conn,
int mode,
union ocfs2_dlm_lksb *lksb,
struct ocfs2_dlm_lksb *lksb,
u32 flags,
void *name,
unsigned int namelen);
@ -176,7 +180,7 @@ struct ocfs2_stack_operations {
* function. The caller can use this to find their object.
*/
int (*dlm_unlock)(struct ocfs2_cluster_connection *conn,
union ocfs2_dlm_lksb *lksb,
struct ocfs2_dlm_lksb *lksb,
u32 flags);
/*
@ -185,17 +189,17 @@ struct ocfs2_stack_operations {
* callback pulls out the stack-specific lksb, converts the status
* to a proper errno, and returns it.
*/
int (*lock_status)(union ocfs2_dlm_lksb *lksb);
int (*lock_status)(struct ocfs2_dlm_lksb *lksb);
/*
* Return non-zero if the LVB is valid.
*/
int (*lvb_valid)(union ocfs2_dlm_lksb *lksb);
int (*lvb_valid)(struct ocfs2_dlm_lksb *lksb);
/*
* Pull the lvb pointer off of the stack-specific lksb.
*/
void *(*lock_lvb)(union ocfs2_dlm_lksb *lksb);
void *(*lock_lvb)(struct ocfs2_dlm_lksb *lksb);
/*
* Cluster-aware posix locks
@ -212,7 +216,7 @@ struct ocfs2_stack_operations {
* This is an optoinal debugging hook. If provided, the
* stack can dump debugging information about this lock.
*/
void (*dump_lksb)(union ocfs2_dlm_lksb *lksb);
void (*dump_lksb)(struct ocfs2_dlm_lksb *lksb);
};
/*
@ -248,18 +252,18 @@ int ocfs2_cluster_this_node(unsigned int *node);
struct ocfs2_lock_res;
int ocfs2_dlm_lock(struct ocfs2_cluster_connection *conn,
int mode,
union ocfs2_dlm_lksb *lksb,
struct ocfs2_dlm_lksb *lksb,
u32 flags,
void *name,
unsigned int namelen);
int ocfs2_dlm_unlock(struct ocfs2_cluster_connection *conn,
union ocfs2_dlm_lksb *lksb,
struct ocfs2_dlm_lksb *lksb,
u32 flags);
int ocfs2_dlm_lock_status(union ocfs2_dlm_lksb *lksb);
int ocfs2_dlm_lvb_valid(union ocfs2_dlm_lksb *lksb);
void *ocfs2_dlm_lvb(union ocfs2_dlm_lksb *lksb);
void ocfs2_dlm_dump_lksb(union ocfs2_dlm_lksb *lksb);
int ocfs2_dlm_lock_status(struct ocfs2_dlm_lksb *lksb);
int ocfs2_dlm_lvb_valid(struct ocfs2_dlm_lksb *lksb);
void *ocfs2_dlm_lvb(struct ocfs2_dlm_lksb *lksb);
void ocfs2_dlm_dump_lksb(struct ocfs2_dlm_lksb *lksb);
int ocfs2_stack_supports_plocks(void);
int ocfs2_plock(struct ocfs2_cluster_connection *conn, u64 ino,