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ocfs2: Remove ->unblock lockres operation

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Have ocfs2_process_blocked_lock() call ocfs2_generic_unblock_lock(), which
gets to be ocfs2_unblock_lock() now that it's the only possible unblock
function.

Remove the ->unblock() callback from the structure, and all lock type
specific unblock functions.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
This commit is contained in:
Mark Fasheh 2006-09-13 22:01:16 -07:00
parent cc567d89b3
commit b5e500e23e
1 changed files with 6 additions and 146 deletions
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152
fs/ocfs2/dlmglue.c
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@ -73,7 +73,7 @@ static struct ocfs2_super *ocfs2_get_inode_osb(struct ocfs2_lock_res *lockres);
/*
* Return value from ->downconvert_worker functions.
*
* These control the precise actions of ocfs2_generic_unblock_lock()
* These control the precise actions of ocfs2_unblock_lock()
* and ocfs2_process_blocked_lock()
*
*/
@ -90,31 +90,19 @@ struct ocfs2_unblock_ctl {
enum ocfs2_unblock_action unblock_action;
};
static int ocfs2_unblock_meta(struct ocfs2_lock_res *lockres,
struct ocfs2_unblock_ctl *ctl);
static int ocfs2_check_meta_downconvert(struct ocfs2_lock_res *lockres,
int new_level);
static void ocfs2_set_meta_lvb(struct ocfs2_lock_res *lockres);
static int ocfs2_unblock_data(struct ocfs2_lock_res *lockres,
struct ocfs2_unblock_ctl *ctl);
static int ocfs2_data_convert_worker(struct ocfs2_lock_res *lockres,
int blocking);
static int ocfs2_unblock_inode_lock(struct ocfs2_lock_res *lockres,
struct ocfs2_unblock_ctl *ctl);
static int ocfs2_unblock_dentry_lock(struct ocfs2_lock_res *lockres,
struct ocfs2_unblock_ctl *ctl);
static int ocfs2_dentry_convert_worker(struct ocfs2_lock_res *lockres,
int blocking);
static void ocfs2_dentry_post_unlock(struct ocfs2_super *osb,
struct ocfs2_lock_res *lockres);
static int ocfs2_unblock_osb_lock(struct ocfs2_lock_res *lockres,
struct ocfs2_unblock_ctl *ctl);
/*
* OCFS2 Lock Resource Operations
*
@ -126,7 +114,7 @@ struct ocfs2_lock_res_ops {
* this callback if ->l_priv is not an ocfs2_super pointer
*/
struct ocfs2_super * (*get_osb)(struct ocfs2_lock_res *);
int (*unblock)(struct ocfs2_lock_res *, struct ocfs2_unblock_ctl *);
void (*post_unlock)(struct ocfs2_super *, struct ocfs2_lock_res *);
/*
@ -186,19 +174,13 @@ struct ocfs2_lock_res_ops {
*/
#define LOCK_TYPE_USES_LVB 0x2
static int ocfs2_generic_unblock_lock(struct ocfs2_super *osb,
struct ocfs2_lock_res *lockres,
struct ocfs2_unblock_ctl *ctl);
static struct ocfs2_lock_res_ops ocfs2_inode_rw_lops = {
.get_osb = ocfs2_get_inode_osb,
.unblock = ocfs2_unblock_inode_lock,
.flags = 0,
};
static struct ocfs2_lock_res_ops ocfs2_inode_meta_lops = {
.get_osb = ocfs2_get_inode_osb,
.unblock = ocfs2_unblock_meta,
.check_downconvert = ocfs2_check_meta_downconvert,
.set_lvb = ocfs2_set_meta_lvb,
.flags = LOCK_TYPE_REQUIRES_REFRESH|LOCK_TYPE_USES_LVB,
@ -206,24 +188,20 @@ static struct ocfs2_lock_res_ops ocfs2_inode_meta_lops = {
static struct ocfs2_lock_res_ops ocfs2_inode_data_lops = {
.get_osb = ocfs2_get_inode_osb,
.unblock = ocfs2_unblock_data,
.downconvert_worker = ocfs2_data_convert_worker,
.flags = 0,
};
static struct ocfs2_lock_res_ops ocfs2_super_lops = {
.unblock = ocfs2_unblock_osb_lock,
.flags = LOCK_TYPE_REQUIRES_REFRESH,
};
static struct ocfs2_lock_res_ops ocfs2_rename_lops = {
.unblock = ocfs2_unblock_osb_lock,
.flags = 0,
};
static struct ocfs2_lock_res_ops ocfs2_dentry_lops = {
.get_osb = ocfs2_get_dentry_osb,
.unblock = ocfs2_unblock_dentry_lock,
.post_unlock = ocfs2_dentry_post_unlock,
.downconvert_worker = ocfs2_dentry_convert_worker,
.flags = 0,
@ -2553,9 +2531,9 @@ static int ocfs2_cancel_convert(struct ocfs2_super *osb,
return ret;
}
static int ocfs2_generic_unblock_lock(struct ocfs2_super *osb,
struct ocfs2_lock_res *lockres,
struct ocfs2_unblock_ctl *ctl)
static int ocfs2_unblock_lock(struct ocfs2_super *osb,
struct ocfs2_lock_res *lockres,
struct ocfs2_unblock_ctl *ctl)
{
unsigned long flags;
int blocking;
@ -2694,53 +2672,6 @@ static int ocfs2_data_convert_worker(struct ocfs2_lock_res *lockres,
return UNBLOCK_CONTINUE;
}
int ocfs2_unblock_data(struct ocfs2_lock_res *lockres,
struct ocfs2_unblock_ctl *ctl)
{
int status;
struct inode *inode;
struct ocfs2_super *osb;
mlog_entry_void();
inode = ocfs2_lock_res_inode(lockres);
osb = OCFS2_SB(inode->i_sb);
mlog(0, "unblock inode %llu\n",
(unsigned long long)OCFS2_I(inode)->ip_blkno);
status = ocfs2_generic_unblock_lock(osb, lockres, ctl);
if (status < 0)
mlog_errno(status);
mlog(0, "inode %llu, requeue = %d\n",
(unsigned long long)OCFS2_I(inode)->ip_blkno, ctl->requeue);
mlog_exit(status);
return status;
}
static int ocfs2_unblock_inode_lock(struct ocfs2_lock_res *lockres,
struct ocfs2_unblock_ctl *ctl)
{
int status;
struct inode *inode;
mlog_entry_void();
mlog(0, "Unblock lockres %s\n", lockres->l_name);
inode = ocfs2_lock_res_inode(lockres);
status = ocfs2_generic_unblock_lock(OCFS2_SB(inode->i_sb),
lockres, ctl);
if (status < 0)
mlog_errno(status);
mlog_exit(status);
return status;
}
static int ocfs2_check_meta_downconvert(struct ocfs2_lock_res *lockres,
int new_level)
{
@ -2764,31 +2695,6 @@ static void ocfs2_set_meta_lvb(struct ocfs2_lock_res *lockres)
__ocfs2_stuff_meta_lvb(inode);
}
static int ocfs2_unblock_meta(struct ocfs2_lock_res *lockres,
struct ocfs2_unblock_ctl *ctl)
{
int status;
struct inode *inode;
mlog_entry_void();
inode = ocfs2_lock_res_inode(lockres);
mlog(0, "unblock inode %llu\n",
(unsigned long long)OCFS2_I(inode)->ip_blkno);
status = ocfs2_generic_unblock_lock(OCFS2_SB(inode->i_sb),
lockres, ctl);
if (status < 0)
mlog_errno(status);
mlog(0, "inode %llu, requeue = %d\n",
(unsigned long long)OCFS2_I(inode)->ip_blkno, ctl->requeue);
mlog_exit(status);
return status;
}
/*
* Does the final reference drop on our dentry lock. Right now this
* happens in the vote thread, but we could choose to simplify the
@ -2911,51 +2817,6 @@ static int ocfs2_dentry_convert_worker(struct ocfs2_lock_res *lockres,
return UNBLOCK_CONTINUE_POST;
}
static int ocfs2_unblock_dentry_lock(struct ocfs2_lock_res *lockres,
struct ocfs2_unblock_ctl *ctl)
{
int ret;
struct ocfs2_dentry_lock *dl = ocfs2_lock_res_dl(lockres);
struct ocfs2_super *osb = OCFS2_SB(dl->dl_inode->i_sb);
mlog(0, "unblock dentry lock: %llu\n",
(unsigned long long)OCFS2_I(dl->dl_inode)->ip_blkno);
ret = ocfs2_generic_unblock_lock(osb,
lockres,
ctl);
if (ret < 0)
mlog_errno(ret);
mlog(0, "requeue = %d, post = %d\n", ctl->requeue, ctl->unblock_action);
return ret;
}
/* Generic unblock function for any lockres whose private data is an
* ocfs2_super pointer. */
static int ocfs2_unblock_osb_lock(struct ocfs2_lock_res *lockres,
struct ocfs2_unblock_ctl *ctl)
{
int status;
struct ocfs2_super *osb;
mlog_entry_void();
mlog(0, "Unblock lockres %s\n", lockres->l_name);
osb = ocfs2_get_lockres_osb(lockres);
status = ocfs2_generic_unblock_lock(osb,
lockres,
ctl);
if (status < 0)
mlog_errno(status);
mlog_exit(status);
return status;
}
void ocfs2_process_blocked_lock(struct ocfs2_super *osb,
struct ocfs2_lock_res *lockres)
{
@ -2971,7 +2832,6 @@ void ocfs2_process_blocked_lock(struct ocfs2_super *osb,
BUG_ON(!lockres);
BUG_ON(!lockres->l_ops);
BUG_ON(!lockres->l_ops->unblock);
mlog(0, "lockres %s blocked.\n", lockres->l_name);
@ -2985,7 +2845,7 @@ void ocfs2_process_blocked_lock(struct ocfs2_super *osb,
goto unqueue;
spin_unlock_irqrestore(&lockres->l_lock, flags);
status = lockres->l_ops->unblock(lockres, &ctl);
status = ocfs2_unblock_lock(osb, lockres, &ctl);
if (status < 0)
mlog_errno(status);