Write an inode and its pages to disk.
int sync_inode(struct inode * inode, struct writeback_control * wbc);
inode
the inode to sync
wbc
controls the writeback mode
sync_inode will write an inode and its pages to disk. It will also correctly update the inode on its superblock's dirty inode lists and will update inode->i_state.
The caller must have a ref on the inode.