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ocfs2: Have the metadata lock use generic dlmglue functions 

Fill in the ->check_downconvert and ->set_lvb callbacks with meta data
specific operations and switch ocfs2_unblock_meta() to call
ocfs2_generic_unblock_lock()

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
This commit is contained in:
Mark Fasheh 2006-09-13 21:39:52 -07:00
parent 5ef0d4ea08
commit 810d5aeba1
1 changed files with 31 additions and 1 deletions
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32
fs/ocfs2/dlmglue.c
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@ -92,6 +92,10 @@ struct ocfs2_unblock_ctl {
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_unblock_inode_lock(struct ocfs2_lock_res *lockres,
@ -179,6 +183,8 @@ static struct ocfs2_lock_res_ops ocfs2_inode_rw_lops = {
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,
};
@ -2822,6 +2828,29 @@ static int ocfs2_unblock_inode_lock(struct ocfs2_lock_res *lockres,
return status;
}
static int ocfs2_check_meta_downconvert(struct ocfs2_lock_res *lockres,
int new_level)
{
struct inode *inode = ocfs2_lock_res_inode(lockres);
int checkpointed = ocfs2_inode_fully_checkpointed(inode);
BUG_ON(new_level != LKM_NLMODE && new_level != LKM_PRMODE);
BUG_ON(lockres->l_level != LKM_EXMODE && !checkpointed);
if (checkpointed)
return 1;
ocfs2_start_checkpoint(OCFS2_SB(inode->i_sb));
return 0;
}
static void ocfs2_set_meta_lvb(struct ocfs2_lock_res *lockres)
{
struct inode *inode = ocfs2_lock_res_inode(lockres);
__ocfs2_stuff_meta_lvb(inode);
}
static int ocfs2_unblock_meta(struct ocfs2_lock_res *lockres,
struct ocfs2_unblock_ctl *ctl)
{
@ -2835,7 +2864,8 @@ static int ocfs2_unblock_meta(struct ocfs2_lock_res *lockres,
mlog(0, "unblock inode %llu\n",
(unsigned long long)OCFS2_I(inode)->ip_blkno);
status = ocfs2_do_unblock_meta(inode, &ctl->requeue);
status = ocfs2_generic_unblock_lock(OCFS2_SB(inode->i_sb),
lockres, ctl, NULL);
if (status < 0)
mlog_errno(status);