[PATCH 72/75] mm/readahead: Align file mappings for non-DAX

[Matthew Wilcox (Oracle)]

From: William Kucharski <william.kucharski@xxxxxxxxxx>

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@xxxxxxxxxx>
Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
---
 mm/huge_memory.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index a80d0408ebf4..dd3e14700220 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -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);
-- 
2.34.1