mm/readahead: Align file mappings for non-DAX
When we have the opportunity to use PMDs to map a file, we want to follow the same rules as DAX. Signed-off-by: William Kucharski <william.kucharski@oracle.com> Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
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@ -582,13 +582,10 @@ unsigned long thp_get_unmapped_area(struct file *filp, unsigned long addr,
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unsigned long ret;
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unsigned long ret;
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loff_t off = (loff_t)pgoff << PAGE_SHIFT;
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loff_t off = (loff_t)pgoff << PAGE_SHIFT;
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if (!IS_DAX(filp->f_mapping->host) || !IS_ENABLED(CONFIG_FS_DAX_PMD))
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goto out;
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ret = __thp_get_unmapped_area(filp, addr, len, off, flags, PMD_SIZE);
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ret = __thp_get_unmapped_area(filp, addr, len, off, flags, PMD_SIZE);
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if (ret)
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if (ret)
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return ret;
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return ret;
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out:
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return current->mm->get_unmapped_area(filp, addr, len, pgoff, flags);
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return current->mm->get_unmapped_area(filp, addr, len, pgoff, flags);
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}
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}
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EXPORT_SYMBOL_GPL(thp_get_unmapped_area);
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EXPORT_SYMBOL_GPL(thp_get_unmapped_area);
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