Currently dax_pmd_fault() decides to fill a PMD-sized hole only if
returned buffer has BH_Uptodate set. However that doesn't get set for
any mapping buffer so that branch is actually a dead code. The
BH_Uptodate check doesn't make any sense so just remove it.
Signed-off-by: Jan Kara <jack@xxxxxxx>
---
fs/dax.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/dax.c b/fs/dax.c
index 237581441bc1..42bf65b4e752 100644
--- a/fs/dax.c
+++ b/fs/dax.c
@@ -878,7 +878,7 @@ int __dax_pmd_fault(struct vm_area_struct *vma, unsigned long address,
goto fallback;
}
- if (!write && !buffer_mapped(&bh) && buffer_uptodate(&bh)) {
+ if (!write && !buffer_mapped(&bh)) {
spinlock_t *ptl;
pmd_t entry;
struct page *zero_page = get_huge_zero_page();
--
2.6.6
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