From c0e4133851ed94c73ee3d34a2f2a245fcd0a60a1 Mon Sep 17 00:00:00 2001 From: Joel Becker Date: Fri, 29 Jan 2010 14:46:44 -0800 Subject: ocfs2: Attach the connection to the lksb 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 --- fs/ocfs2/dlmglue.c | 8 ++++---- fs/ocfs2/ocfs2.h | 2 +- fs/ocfs2/stack_o2cb.c | 18 +++++++++--------- fs/ocfs2/stack_user.c | 16 ++++++++-------- fs/ocfs2/stackglue.c | 17 +++++++++++------ fs/ocfs2/stackglue.h | 42 +++++++++++++++++++++++------------------- 6 files changed, 56 insertions(+), 47 deletions(-) (limited to 'fs') diff --git a/fs/ocfs2/dlmglue.c b/fs/ocfs2/dlmglue.c index 1ba67df00924..2bb868b7b44f 100644 --- a/fs/ocfs2/dlmglue.c +++ b/fs/ocfs2/dlmglue.c @@ -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; diff --git a/fs/ocfs2/ocfs2.h b/fs/ocfs2/ocfs2.h index 8857dd724f90..b27fe2489e0c 100644 --- a/fs/ocfs2/ocfs2.h +++ b/fs/ocfs2/ocfs2.h @@ -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; diff --git a/fs/ocfs2/stack_o2cb.c b/fs/ocfs2/stack_o2cb.c index c4cedff365df..fa9dd79c3615 100644 --- a/fs/ocfs2/stack_o2cb.c +++ b/fs/ocfs2/stack_o2cb.c @@ -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); } diff --git a/fs/ocfs2/stack_user.c b/fs/ocfs2/stack_user.c index 129b93159cca..31276bac78f5 100644 --- a/fs/ocfs2/stack_user.c +++ b/fs/ocfs2/stack_user.c @@ -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) { } diff --git a/fs/ocfs2/stackglue.c b/fs/ocfs2/stackglue.c index 3500d9839d76..8ef9a574315e 100644 --- a/fs/ocfs2/stackglue.c +++ b/fs/ocfs2/stackglue.c @@ -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); } diff --git a/fs/ocfs2/stackglue.h b/fs/ocfs2/stackglue.h index d699117fb851..bb32926912ba 100644 --- a/fs/ocfs2/stackglue.h +++ b/fs/ocfs2/stackglue.h @@ -70,10 +70,14 @@ struct fsdlm_lksb_plus_lvb { * size of the union is known. Lock status structures are embedded in * ocfs2 inodes. */ -union ocfs2_dlm_lksb { - struct dlm_lockstatus lksb_o2dlm; - struct dlm_lksb lksb_fsdlm; - struct fsdlm_lksb_plus_lvb padding; +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; }; /* @@ -81,9 +85,9 @@ union ocfs2_dlm_lksb { */ 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, -- cgit v1.2.1