{
return &BDEV_I(inode)->bdev;
}
-
EXPORT_SYMBOL(I_BDEV);
/*
- * move the inode from it's current bdi to the a new bdi. if the inode is dirty
- * we need to move it onto the dirty list of @dst so that the inode is always
- * on the right list.
+ * Move the inode from its current bdi to a new bdi. If the inode is dirty we
+ * need to move it onto the dirty list of @dst so that the inode is always on
+ * the right list.
*/
static void bdev_inode_switch_bdi(struct inode *inode,
struct backing_dev_info *dst)
{
- spin_lock(&inode_wb_list_lock);
+ struct backing_dev_info *old = inode->i_data.backing_dev_info;
+
+ if (unlikely(dst == old)) /* deadlock avoidance */
+ return;
+ bdi_lock_two(&old->wb, &dst->wb);
spin_lock(&inode->i_lock);
inode->i_data.backing_dev_info = dst;
if (inode->i_state & I_DIRTY)
list_move(&inode->i_wb_list, &dst->wb.b_dirty);
spin_unlock(&inode->i_lock);
- spin_unlock(&inode_wb_list_lock);
+ spin_unlock(&old->wb.list_lock);
+ spin_unlock(&dst->wb.list_lock);
}
static sector_t max_block(struct block_device *bdev)
struct inode *bd_inode = filp->f_mapping->host;
struct block_device *bdev = I_BDEV(bd_inode);
int error;
+
+ error = filemap_write_and_wait_range(filp->f_mapping, start, end);
+ if (error)
+ return error;
/*
* There is no need to serialise calls to blkdev_issue_flush with
if (inode->i_state & I_NEW) {
bdev->bd_contains = NULL;
+ bdev->bd_super = NULL;
bdev->bd_inode = inode;
bdev->bd_block_size = (1 << inode->i_blkbits);
bdev->bd_part_count = 0;