sync_lazytime
inode->i_op->sync_lazytime(inode);
if (inode->i_op->sync_lazytime)
sync_lazytime(inode);
} else if (was_dirty_time && inode->i_op->sync_lazytime) {
inode->i_op->sync_lazytime(inode);
if (inode->i_nlink && sync_lazytime(inode))
bool sync_lazytime(struct inode *inode);
sync_lazytime(inode);
.sync_lazytime = xfs_vn_sync_lazytime,
.sync_lazytime = xfs_vn_sync_lazytime,
.sync_lazytime = xfs_vn_sync_lazytime,
.sync_lazytime = xfs_vn_sync_lazytime,
void (*sync_lazytime)(struct inode *inode);