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Commit e92d57df authored by Mark Fasheh's avatar Mark Fasheh
Browse files

ocfs2: combine inode and generic AST functions 



There is extremely little difference between the two now. We can remove the
callback from ocfs2_lock_res_ops as well.

Signed-off-by: default avatarMark Fasheh <mark.fasheh@oracle.com>
parent f625c979

fs/ocfs2/dlmglue.c

+10 −110
Original line number Diff line number Diff line
@@ -67,16 +67,12 @@ struct ocfs2_mask_waiter { 
	unsigned long		mw_goal;

};



static void ocfs2_inode_ast_func(void *opaque);

static void ocfs2_inode_bast_func(void *opaque,

				  int level);

static void ocfs2_dentry_ast_func(void *opaque);

static void ocfs2_dentry_bast_func(void *opaque,

				  int level);

static void ocfs2_super_ast_func(void *opaque);

static void ocfs2_super_bast_func(void *opaque,

				  int level);

static void ocfs2_rename_ast_func(void *opaque);

static void ocfs2_rename_bast_func(void *opaque,

				   int level);
@@ -123,7 +119,6 @@ static void ocfs2_dentry_post_unlock(struct ocfs2_super *osb, 
 * These fine tune the behavior of the generic dlmglue locking infrastructure.

 */

struct ocfs2_lock_res_ops {

	void (*ast)(void *);

	void (*bast)(void *, int);

	void (*unlock_ast)(void *, enum dlm_status);

	int  (*unblock)(struct ocfs2_lock_res *, struct ocfs2_unblock_ctl *);
@@ -153,7 +148,6 @@ static int ocfs2_generic_unblock_lock(struct ocfs2_super *osb, 
				      ocfs2_convert_worker_t *worker);



static struct ocfs2_lock_res_ops ocfs2_inode_rw_lops = {

	.ast		= ocfs2_inode_ast_func,

	.bast		= ocfs2_inode_bast_func,

	.unlock_ast	= ocfs2_unlock_ast_func,

	.unblock	= ocfs2_unblock_inode_lock,
@@ -161,7 +155,6 @@ static struct ocfs2_lock_res_ops ocfs2_inode_rw_lops = { 
};



static struct ocfs2_lock_res_ops ocfs2_inode_meta_lops = {

	.ast		= ocfs2_inode_ast_func,

	.bast		= ocfs2_inode_bast_func,

	.unlock_ast	= ocfs2_unlock_ast_func,

	.unblock	= ocfs2_unblock_meta,
@@ -169,7 +162,6 @@ static struct ocfs2_lock_res_ops ocfs2_inode_meta_lops = { 
};



static struct ocfs2_lock_res_ops ocfs2_inode_data_lops = {

	.ast		= ocfs2_inode_ast_func,

	.bast		= ocfs2_inode_bast_func,

	.unlock_ast	= ocfs2_unlock_ast_func,

	.unblock	= ocfs2_unblock_data,
@@ -177,7 +169,6 @@ static struct ocfs2_lock_res_ops ocfs2_inode_data_lops = { 
};



static struct ocfs2_lock_res_ops ocfs2_super_lops = {

	.ast		= ocfs2_super_ast_func,

	.bast		= ocfs2_super_bast_func,

	.unlock_ast	= ocfs2_unlock_ast_func,

	.unblock	= ocfs2_unblock_osb_lock,
@@ -185,7 +176,6 @@ static struct ocfs2_lock_res_ops ocfs2_super_lops = { 
};



static struct ocfs2_lock_res_ops ocfs2_rename_lops = {

	.ast		= ocfs2_rename_ast_func,

	.bast		= ocfs2_rename_bast_func,

	.unlock_ast	= ocfs2_unlock_ast_func,

	.unblock	= ocfs2_unblock_osb_lock,
@@ -193,7 +183,6 @@ static struct ocfs2_lock_res_ops ocfs2_rename_lops = { 
};



static struct ocfs2_lock_res_ops ocfs2_dentry_lops = {

	.ast		= ocfs2_dentry_ast_func,

	.bast		= ocfs2_dentry_bast_func,

	.unlock_ast	= ocfs2_unlock_ast_func,

	.unblock	= ocfs2_unblock_dentry_lock,
@@ -625,64 +614,6 @@ static inline void ocfs2_generic_handle_attach_action(struct ocfs2_lock_res *loc 
	mlog_exit_void();

}



static void ocfs2_inode_ast_func(void *opaque)

{

	struct ocfs2_lock_res *lockres = opaque;

	struct inode *inode;

	struct dlm_lockstatus *lksb;

	unsigned long flags;



	mlog_entry_void();



	inode = ocfs2_lock_res_inode(lockres);



	mlog(0, "AST fired for inode %llu, l_action = %u, type = %s\n",

	     (unsigned long long)OCFS2_I(inode)->ip_blkno, lockres->l_action,

	     ocfs2_lock_type_string(lockres->l_type));



	BUG_ON(!ocfs2_is_inode_lock(lockres));



	spin_lock_irqsave(&lockres->l_lock, flags);



	lksb = &(lockres->l_lksb);

	if (lksb->status != DLM_NORMAL) {

		mlog(ML_ERROR, "ocfs2_inode_ast_func: lksb status value of %u "

		     "on inode %llu\n", lksb->status,

		     (unsigned long long)OCFS2_I(inode)->ip_blkno);

		spin_unlock_irqrestore(&lockres->l_lock, flags);

		mlog_exit_void();

		return;

	}



	switch(lockres->l_action) {

	case OCFS2_AST_ATTACH:

		ocfs2_generic_handle_attach_action(lockres);

		lockres_clear_flags(lockres, OCFS2_LOCK_LOCAL);

		break;

	case OCFS2_AST_CONVERT:

		ocfs2_generic_handle_convert_action(lockres);

		break;

	case OCFS2_AST_DOWNCONVERT:

		ocfs2_generic_handle_downconvert_action(lockres);

		break;

	default:

		mlog(ML_ERROR, "lockres %s: ast fired with invalid action: %u "

		     "lockres flags = 0x%lx, unlock action: %u\n",

		     lockres->l_name, lockres->l_action, lockres->l_flags,

		     lockres->l_unlock_action);



		BUG();

	}



	/* set it to something invalid so if we get called again we

	 * can catch it. */

	lockres->l_action = OCFS2_AST_INVALID;

	spin_unlock_irqrestore(&lockres->l_lock, flags);

	wake_up(&lockres->l_event);



	mlog_exit_void();

}



static int ocfs2_generic_handle_bast(struct ocfs2_lock_res *lockres,

				     int level)

{
@@ -755,8 +686,9 @@ static void ocfs2_inode_bast_func(void *opaque, int level) 
	mlog_exit_void();

}



static void ocfs2_generic_ast_func(struct ocfs2_lock_res *lockres)

static void ocfs2_locking_ast(void *opaque)

{

	struct ocfs2_lock_res *lockres = opaque;

	struct dlm_lockstatus *lksb = &lockres->l_lksb;

	unsigned long flags;
@@ -772,6 +704,7 @@ static void ocfs2_generic_ast_func(struct ocfs2_lock_res *lockres) 
	switch(lockres->l_action) {

	case OCFS2_AST_ATTACH:

		ocfs2_generic_handle_attach_action(lockres);

		lockres_clear_flags(lockres, OCFS2_LOCK_LOCAL);

		break;

	case OCFS2_AST_CONVERT:

		ocfs2_generic_handle_convert_action(lockres);
@@ -780,6 +713,10 @@ static void ocfs2_generic_ast_func(struct ocfs2_lock_res *lockres) 
		ocfs2_generic_handle_downconvert_action(lockres);

		break;

	default:

		mlog(ML_ERROR, "lockres %s: ast fired with invalid action: %u "

		     "lockres flags = 0x%lx, unlock action: %u\n",

		     lockres->l_name, lockres->l_action, lockres->l_flags,

		     lockres->l_unlock_action);

		BUG();

	}
@@ -791,19 +728,6 @@ static void ocfs2_generic_ast_func(struct ocfs2_lock_res *lockres) 
	spin_unlock_irqrestore(&lockres->l_lock, flags);

}



static void ocfs2_super_ast_func(void *opaque)

{

	struct ocfs2_lock_res *lockres = opaque;



	mlog_entry_void();

	mlog(0, "Superblock AST fired\n");



	BUG_ON(!ocfs2_is_super_lock(lockres));

	ocfs2_generic_ast_func(lockres);



	mlog_exit_void();

}



static void ocfs2_super_bast_func(void *opaque,

				  int level)

{
@@ -820,21 +744,6 @@ static void ocfs2_super_bast_func(void *opaque, 
	mlog_exit_void();

}



static void ocfs2_rename_ast_func(void *opaque)

{

	struct ocfs2_lock_res *lockres = opaque;



	mlog_entry_void();



	mlog(0, "Rename AST fired\n");



	BUG_ON(!ocfs2_is_rename_lock(lockres));



	ocfs2_generic_ast_func(lockres);



	mlog_exit_void();

}



static void ocfs2_rename_bast_func(void *opaque,

				   int level)

{
@@ -853,15 +762,6 @@ static void ocfs2_rename_bast_func(void *opaque, 
	mlog_exit_void();

}



static void ocfs2_dentry_ast_func(void *opaque)

{

	struct ocfs2_lock_res *lockres = opaque;



	BUG_ON(!lockres);



	ocfs2_generic_ast_func(lockres);

}



static void ocfs2_dentry_bast_func(void *opaque, int level)

{

	struct ocfs2_lock_res *lockres = opaque;
@@ -928,7 +828,7 @@ static int ocfs2_lock_create(struct ocfs2_super *osb, 
			 dlm_flags,

			 lockres->l_name,

			 OCFS2_LOCK_ID_MAX_LEN - 1,

			 lockres->l_ops->ast,

			 ocfs2_locking_ast,

			 lockres,

			 lockres->l_ops->bast);

	if (status != DLM_NORMAL) {
@@ -1118,7 +1018,7 @@ static int ocfs2_cluster_lock(struct ocfs2_super *osb, 
				 lkm_flags|LKM_CONVERT|LKM_VALBLK,

				 lockres->l_name,

				 OCFS2_LOCK_ID_MAX_LEN - 1,

				 lockres->l_ops->ast,

				 ocfs2_locking_ast,

				 lockres,

				 lockres->l_ops->bast);

		if (status != DLM_NORMAL) {
@@ -2599,7 +2499,7 @@ static int ocfs2_downconvert_lock(struct ocfs2_super *osb, 
			 dlm_flags,

			 lockres->l_name,

			 OCFS2_LOCK_ID_MAX_LEN - 1,

			 lockres->l_ops->ast,

			 ocfs2_locking_ast,

			 lockres,

			 lockres->l_ops->bast);

	if (status != DLM_NORMAL) {