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    SubjectRe: [PATCH 7/14] drm/i915: adjust to new truncate_range
    >  	/* Our goal here is to return as much of the memory as
    > * is possible back to the system as we are called from OOM.
    > * To do this we must instruct the shmfs to drop all of its
    > - * backing pages, *now*. Here we mirror the actions taken
    > - * when by shmem_delete_inode() to release the backing store.
    > + * backing pages, *now*.
    > */
    > inode = obj->base.filp->f_path.dentry->d_inode;
    > - truncate_inode_pages(inode->i_mapping, 0);
    > if (inode->i_op->truncate_range)
    > inode->i_op->truncate_range(inode, 0, (loff_t)-1);
    > + else
    > + truncate_inode_pages(inode->i_mapping, 0);

    Given that it relies on beeing on shmemfs it should just call it
    directly.


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