Commit 1854bc6e authored by William Kucharski's avatar William Kucharski Committed by Matthew Wilcox (Oracle)
Browse files

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: default avatarWilliam Kucharski <william.kucharski@oracle.com>
Signed-off-by: default avatarMatthew Wilcox (Oracle) <willy@infradead.org>
parent 793917d9

mm/huge_memory.c

+1 −4
Original line number Diff line number Diff line
@@ -582,13 +582,10 @@ unsigned long thp_get_unmapped_area(struct file *filp, unsigned long addr, 
	unsigned long ret;

	loff_t off = (loff_t)pgoff << PAGE_SHIFT;



	if (!IS_DAX(filp->f_mapping->host) || !IS_ENABLED(CONFIG_FS_DAX_PMD))

		goto out;



	ret = __thp_get_unmapped_area(filp, addr, len, off, flags, PMD_SIZE);

	if (ret)

		return ret;

out:



	return current->mm->get_unmapped_area(filp, addr, len, pgoff, flags);

}

EXPORT_SYMBOL_GPL(thp_get_unmapped_area);